Ralf Schlüter

341 papers A* 1A 112B 3C 18Misc 75Journal 99Unranked 32

Year	Rank	Type	Title / Venue / Authors
2026	J	`jnl`	Sequence-Level Unsupervised Training in Speech Recognition: A Theoretical Study. CoRR Zijian Yang, Jörg Barkoczi, Ralf Schlüter, Hermann Ney
2025	J	`jnl`	A Comparative Analysis on ASR System Combination for Attention, CTC, Factored Hybrid, and Transducer Models. CoRR Noureldin Bayoumi, Robin Schmitt, Tina Raissi, Albert Zeyer, Ralf Schlüter, Hermann Ney
2025	C	`conf`	Analysis of Domain Shift across ASR Architectures via TTS-Enabled Separation of Target Domain and Acoustic Conditions. ASRU Tina Raissi, Nick Rossenbach, Ralf Schlüter
2025	J	`jnl`	Analysis of Domain Shift across ASR Architectures via TTS-Enabled Separation of Target Domain and Acoustic Conditions. CoRR Tina Raissi, Nick Rossenbach, Ralf Schlüter
2025	A	`conf`	Analyzing the Importance of Blank for CTC-Based Knowledge Distillation. INTERSPEECH Benedikt Hilmes, Nick Rossenbach, Ralf Schlüter
2025	J	`jnl`	Analyzing the Importance of Blank for CTC-Based Knowledge Distillation. CoRR Benedikt Hilmes, Nick Rossenbach, Ralf Schlüter
2025	Misc	`conf`	Classification Error Bound for Low Bayes Error Conditions in Machine Learning. ICASSP Zijian Yang, Vahe Eminyan, Ralf Schlüter, Hermann Ney
2025	J	`jnl`	Classification Error Bound for Low Bayes Error Conditions in Machine Learning. CoRR Zijian Yang, Vahe Eminyan, Ralf Schlüter, Hermann Ney
2025	A	`conf`	Dynamic Acoustic Model Architecture Optimization in Training for ASR. INTERSPEECH Jingjing Xu, Zijian Yang, Albert Zeyer, Eugen Beck, Ralf Schlüter, Hermann Ney
2025	J	`jnl`	Dynamic Acoustic Model Architecture Optimization in Training for ASR. CoRR Jingjing Xu, Zijian Yang, Albert Zeyer, Eugen Beck, Ralf Schlüter, Hermann Ney
2025	Misc	`conf`	Efficient Supernet Training with Orthogonal Softmax for Scalable ASR Model Compression. ICASSP Jingjing Xu, Eugen Beck, Zijian Yang, Ralf Schlüter
2025	J	`jnl`	Efficient Supernet Training with Orthogonal Softmax for Scalable ASR Model Compression. CoRR Jingjing Xu, Eugen Beck, Zijian Yang, Ralf Schlüter
2025	J	`jnl`	Error Analysis in a Modular Meeting Transcription System. CoRR Peter Vieting, Simon Berger, Thilo von Neumann, Christoph Boeddeker, Ralf Schlüter, Reinhold Haeb-Umbach
2025	J	`jnl`	Exploring Gender Bias in Large Language Models: An In-depth Dive into the German Language. CoRR Kristin Gnadt, David Thulke, Simone Kopeinik, Ralf Schlüter
2025	A	`conf`	Label-Context-Dependent Internal Language Model Estimation for CTC. INTERSPEECH Zijian Yang, Minh-Nghia Phan, Ralf Schlüter, Hermann Ney
2025	J	`jnl`	Label-Context-Dependent Internal Language Model Estimation for CTC. CoRR Zijian Yang, Minh-Nghia Phan, Ralf Schlüter, Hermann Ney
2025	—	`conf`	Medical Spoken Named Entity Recognition. NAACL (Industry Track) Khai Le-Duc, David Thulke, Hung-Phong Tran, Long Vo-Dang, Khai-Nguyen Nguyen, Truong-Son Hy, Ralf Schlüter
2025	A	`conf`	Regularizing Learnable Feature Extraction for Automatic Speech Recognition. INTERSPEECH Peter Vieting, Maximilian Kannen, Benedikt Hilmes, Ralf Schlüter, Hermann Ney
2025	J	`jnl`	Regularizing Learnable Feature Extraction for Automatic Speech Recognition. CoRR Peter Vieting, Maximilian Kannen, Benedikt Hilmes, Ralf Schlüter, Hermann Ney
2025	J	`jnl`	Reproducing and Dissecting Denoising Language Models for Speech Recognition. CoRR Dorian Koch, Albert Zeyer, Nick Rossenbach, Ralf Schlüter, Hermann Ney
2025	Misc	`conf`	Right Label Context in End-to-End Training of Time-Synchronous ASR Models. ICASSP Tina Raissi, Ralf Schlüter, Hermann Ney
2025	J	`jnl`	Right Label Context in End-to-End Training of Time-Synchronous ASR Models. CoRR Tina Raissi, Ralf Schlüter, Hermann Ney
2025	A	`conf`	Running Conventional Automatic Speech Recognition on Memristor Hardware: A Simulated Approach. INTERSPEECH Nick Rossenbach, Benedikt Hilmes, Leon Brackmann, Moritz Gunz, Ralf Schlüter
2025	J	`jnl`	Running Conventional Automatic Speech Recognition on Memristor Hardware: A Simulated Approach. CoRR Nick Rossenbach, Benedikt Hilmes, Leon Brackmann, Moritz Gunz, Ralf Schlüter
2025	J	`jnl`	Supplementary Resources and Analysis for Automatic Speech Recognition Systems Trained on the Loquacious Dataset. CoRR Nick Rossenbach, Robin Schmitt, Tina Raissi, Simon Berger, Larissa Kleppel, Ralf Schlüter
2025	Misc	`conf`	The Conformer Encoder May Reverse the Time Dimension. ICASSP Robin Schmitt, Albert Zeyer, Mohammad Zeineldeen, Ralf Schlüter, Hermann Ney
2025	J	`jnl`	Unified Learnable 2D Convolutional Feature Extraction for ASR. CoRR Peter Vieting, Benedikt Hilmes, Ralf Schlüter, Hermann Ney
2024	Misc	`conf`	Chunked Attention-Based Encoder-Decoder Model for Streaming Speech Recognition. ICASSP Mohammad Zeineldeen, Albert Zeyer, Ralf Schlüter, Hermann Ney
2024	—	`conf`	Combining TF-GridNet And Mixture Encoder For Continuous Speech Separation For Meeting Transcription. SLT Peter Vieting, Simon Berger, Thilo von Neumann, Christoph Boeddeker, Ralf Schlüter, Reinhold Haeb-Umbach
2024	A	`conf`	Dynamic Encoder Size Based on Data-Driven Layer-wise Pruning for Speech Recognition. INTERSPEECH Jingjing Xu, Wei Zhou, Zijian Yang, Eugen Beck, Ralf Schlüter
2024	J	`jnl`	Dynamic Encoder Size Based on Data-Driven Layer-wise Pruning for Speech Recognition. CoRR Jingjing Xu, Wei Zhou, Zijian Yang, Eugen Beck, Ralf Schlüter
2024	J	`jnl`	End-to-End Speech Recognition: A Survey. IEEE ACM Trans. Audio Speech Lang. Process. Rohit Prabhavalkar, Takaaki Hori, Tara N. Sainath, Ralf Schlüter, Shinji Watanabe
2024	A	`conf`	Investigating the Effect of Label Topology and Training Criterion on ASR Performance and Alignment Quality. INTERSPEECH Tina Raissi, Christoph Lüscher, Simon Berger, Ralf Schlüter, Hermann Ney
2024	J	`jnl`	Investigating the Effect of Label Topology and Training Criterion on ASR Performance and Alignment Quality. CoRR Tina Raissi, Christoph Lüscher, Simon Berger, Ralf Schlüter, Hermann Ney
2024	J	`jnl`	On the Effect of Purely Synthetic Training Data for Different Automatic Speech Recognition Architectures. CoRR Nick Rossenbach, Benedikt Hilmes, Ralf Schlüter
2024	J	`jnl`	On the Problem of Text-To-Speech Model Selection for Synthetic Data Generation in Automatic Speech Recognition. CoRR Nick Rossenbach, Ralf Schlüter, Sakriani Sakti
2024	Misc	`conf`	On the Relation Between Internal Language Model and Sequence Discriminative Training for Neural Transducers. ICASSP Zijian Yang, Wei Zhou, Ralf Schlüter, Hermann Ney
2024	B	`conf`	Refined Statistical Bounds for Classification Error Mismatches with Constrained Bayes Error. ITW Zijian Yang, Vahe Eminyan, Ralf Schlüter, Hermann Ney
2024	J	`jnl`	Refined Statistical Bounds for Classification Error Mismatches with Constrained Bayes Error. CoRR Zijian Yang, Vahe Eminyan, Ralf Schlüter, Hermann Ney
2024	J	`jnl`	The Conformer Encoder May Reverse the Time Dimension. CoRR Robin Schmitt, Albert Zeyer, Mohammad Zeineldeen, Ralf Schlüter, Hermann Ney
2023	J	`jnl`	Chunked Attention-based Encoder-Decoder Model for Streaming Speech Recognition. CoRR Mohammad Zeineldeen, Albert Zeyer, Ralf Schlüter, Hermann Ney
2023	J	`jnl`	Comparative Analysis of the wav2vec 2.0 Feature Extractor. CoRR Peter Vieting, Ralf Schlüter, Hermann Ney
2023	A	`conf`	Competitive and Resource Efficient Factored Hybrid HMM Systems are Simpler Than You Think. INTERSPEECH Tina Raissi, Christoph Lüscher, Moritz Gunz, Ralf Schlüter, Hermann Ney
2023	J	`jnl`	Competitive and Resource Efficient Factored Hybrid HMM Systems are Simpler Than You Think. CoRR Tina Raissi, Christoph Lüscher, Moritz Gunz, Ralf Schlüter, Hermann Ney
2023	—	`conf`	Efficient Utilization of Large Pre-Trained Models for Low Resource ASR. ICASSP Workshops Peter Vieting, Christoph Lüscher, Julian Dierkes, Ralf Schlüter, Hermann Ney
2023	C	`conf`	End-To-End Training of a Neural HMM with Label and Transition Probabilities. ASRU Daniel Mann, Tina Raissi, Wilfried Michel, Ralf Schlüter, Hermann Ney
2023	J	`jnl`	End-to-End Speech Recognition: A Survey. CoRR Rohit Prabhavalkar, Takaaki Hori, Tara N. Sainath, Ralf Schlüter, Shinji Watanabe
2023	J	`jnl`	End-to-End Training of a Neural HMM with Label and Transition Probabilities. CoRR Daniel Mann, Tina Raissi, Wilfried Michel, Ralf Schlüter, Hermann Ney
2023	Misc	`conf`	Enhancing and Adversarial: Improve ASR with Speaker Labels. ICASSP Wei Zhou, Haotian Wu, Jingjing Xu, Mohammad Zeineldeen, Christoph Lüscher, Ralf Schlüter, Hermann Ney
2023	J	`jnl`	Improving And Analyzing Neural Speaker Embeddings for ASR. CoRR Christoph Lüscher, Jingjing Xu, Mohammad Zeineldeen, Ralf Schlüter, Hermann Ney
2023	C	`conf`	Investigating The Effect of Language Models in Sequence Discriminative Training For Neural Transducers. ASRU Zijian Yang, Wei Zhou, Ralf Schlüter, Hermann Ney
2023	J	`jnl`	Investigating the Effect of Language Models in Sequence Discriminative Training for Neural Transducers. CoRR Zijian Yang, Wei Zhou, Ralf Schlüter, Hermann Ney
2023	Misc	`conf`	Lattice-Free Sequence Discriminative Training for Phoneme-Based Neural Transducers. ICASSP Zijian Yang, Wei Zhou, Ralf Schlüter, Hermann Ney
2023	J	`jnl`	Mixture Encoder Supporting Continuous Speech Separation for Meeting Recognition. CoRR Peter Vieting, Simon Berger, Thilo von Neumann, Christoph Böddeker, Ralf Schlüter, Reinhold Haeb-Umbach
2023	A	`conf`	Mixture Encoder for Joint Speech Separation and Recognition. INTERSPEECH Simon Berger, Peter Vieting, Christoph Böddeker, Ralf Schlüter, Reinhold Haeb-Umbach
2023	J	`jnl`	Mixture Encoder for Joint Speech Separation and Recognition. CoRR Simon Berger, Peter Vieting, Christoph Böddeker, Ralf Schlüter, Reinhold Haeb-Umbach
2023	J	`jnl`	On the Relation between Internal Language Model and Sequence Discriminative Training for Neural Transducers. CoRR Zijian Yang, Wei Zhou, Ralf Schlüter, Hermann Ney
2023	C	`conf`	On the Relevance of Phoneme Duration Variability of Synthesized Training Data for Automatic Speech Recognition. ASRU Nick Rossenbach, Benedikt Hilmes, Ralf Schlüter
2023	J	`jnl`	On the Relevance of Phoneme Duration Variability of Synthesized Training Data for Automatic Speech Recognition. CoRR Nick Rossenbach, Benedikt Hilmes, Ralf Schlüter
2023	A	`conf`	RASR2: The RWTH ASR Toolkit for Generic Sequence-to-sequence Speech Recognition. INTERSPEECH Wei Zhou, Eugen Beck, Simon Berger, Ralf Schlüter, Hermann Ney
2023	J	`jnl`	RASR2: The RWTH ASR Toolkit for Generic Sequence-to-sequence Speech Recognition. CoRR Wei Zhou, Eugen Beck, Simon Berger, Ralf Schlüter, Hermann Ney
2022	A	`conf`	Automatic Learning of Subword Dependent Model Scales. INTERSPEECH Felix Meyer, Wilfried Michel, Mohammad Zeineldeen, Ralf Schlüter, Hermann Ney
2022	Misc	`conf`	Conformer-Based Hybrid ASR System For Switchboard Dataset. ICASSP Mohammad Zeineldeen, Jingjing Xu, Christoph Lüscher, Wilfried Michel, Alexander Gerstenberger, Ralf Schlüter, Hermann Ney
2022	J	`jnl`	Development of Hybrid ASR Systems for Low Resource Medical Domain Conversational Telephone Speech. CoRR Christoph Lüscher, Mohammad Zeineldeen, Zijian Yang, Peter Vieting, Khai Le-Duc, Weiyue Wang, Ralf Schlüter, Hermann Ney
2022	—	`conf`	Discrete Steps towards Approximate Computing. ISQED Michael Gansen, Jie Lou, Florian Freye, Tobias Gemmeke, Farhad Merchant, Albert Zeyer, Mohammad Zeineldeen, Ralf Schlüter, Xin Fan
2022	Misc	`conf`	Efficient Sequence Training of Attention Models Using Approximative Recombination. ICASSP Nils-Philipp Wynands, Wilfried Michel, Jan Rosendahl, Ralf Schlüter, Hermann Ney
2022	A	`conf`	Efficient Training of Neural Transducer for Speech Recognition. INTERSPEECH Wei Zhou, Wilfried Michel, Ralf Schlüter, Hermann Ney
2022	J	`jnl`	Efficient Training of Neural Transducer for Speech Recognition. CoRR Wei Zhou, Wilfried Michel, Ralf Schlüter, Hermann Ney
2022	J	`jnl`	Efficient Use of Large Pre-Trained Models for Low Resource ASR. CoRR Peter Vieting, Christoph Lüscher, Julian Dierkes, Ralf Schlüter, Hermann Ney
2022	J	`jnl`	Enhancing and Adversarial: Improve ASR with Speaker Labels. CoRR Wei Zhou, Haotian Wu, Jingjing Xu, Mohammad Zeineldeen, Christoph Lüscher, Ralf Schlüter, Hermann Ney
2022	—	`conf`	HMM vs. CTC for Automatic Speech Recognition: Comparison Based on Full-Sum Training from Scratch. SLT Tina Raissi, Wei Zhou, Simon Berger, Ralf Schlüter, Hermann Ney
2022	J	`jnl`	HMM vs. CTC for Automatic Speech Recognition: Comparison Based on Full-Sum Training from Scratch. CoRR Tina Raissi, Wei Zhou, Simon Berger, Ralf Schlüter, Hermann Ney
2022	Misc	`conf`	Improving Factored Hybrid HMM Acoustic Modeling without State Tying. ICASSP Tina Raissi, Eugen Beck, Ralf Schlüter, Hermann Ney
2022	J	`jnl`	Improving Factored Hybrid HMM Acoustic Modeling without State Tying. CoRR Tina Raissi, Eugen Beck, Ralf Schlüter, Hermann Ney
2022	A	`conf`	Improving the Training Recipe for a Robust Conformer-based Hybrid Model. INTERSPEECH Mohammad Zeineldeen, Jingjing Xu, Christoph Lüscher, Ralf Schlüter, Hermann Ney
2022	J	`jnl`	Improving the Training Recipe for a Robust Conformer-based Hybrid Model. CoRR Mohammad Zeineldeen, Jingjing Xu, Christoph Lüscher, Ralf Schlüter, Hermann Ney
2022	J	`jnl`	Lattice-Free Sequence Discriminative Training for Phoneme-Based Neural Transducers. CoRR Zijian Yang, Wei Zhou, Ralf Schlüter, Hermann Ney
2022	—	`conf`	Monotonic Segmental Attention for Automatic Speech Recognition. SLT Albert Zeyer, Robin Schmitt, Wei Zhou, Ralf Schlüter, Hermann Ney
2022	J	`jnl`	Monotonic segmental attention for automatic speech recognition. CoRR Albert Zeyer, Robin Schmitt, Wei Zhou, Ralf Schlüter, Hermann Ney
2022	Misc	`conf`	On Language Model Integration for RNN Transducer Based Speech Recognition. ICASSP Wei Zhou, Zuoyun Zheng, Ralf Schlüter, Hermann Ney
2022	A	`conf`	Self-Normalized Importance Sampling for Neural Language Modeling. INTERSPEECH Zijian Yang, Yingbo Gao, Alexander Gerstenberger, Jintao Jiang, Ralf Schlüter, Hermann Ney
2021	J	`jnl`	A study of latent monotonic attention variants. CoRR Albert Zeyer, Ralf Schlüter, Hermann Ney
2021	A	`conf`	Acoustic Data-Driven Subword Modeling for End-to-End Speech Recognition. Interspeech Wei Zhou, Mohammad Zeineldeen, Zuoyun Zheng, Ralf Schlüter, Hermann Ney
2021	J	`jnl`	Acoustic Data-Driven Subword Modeling for End-to-End Speech Recognition. CoRR Wei Zhou, Mohammad Zeineldeen, Zuoyun Zheng, Ralf Schlüter, Hermann Ney
2021	J	`jnl`	Automatic Learning of Subword Dependent Model Scales. CoRR Felix Meyer, Wilfried Michel, Mohammad Zeineldeen, Ralf Schlüter, Hermann Ney
2021	C	`conf`	Comparing the Benefit of Synthetic Training Data for Various Automatic Speech Recognition Architectures. ASRU Nick Rossenbach, Mohammad Zeineldeen, Benedikt Hilmes, Ralf Schlüter, Hermann Ney
2021	J	`jnl`	Comparing the Benefit of Synthetic Training Data for Various Automatic Speech Recognition Architectures. CoRR Nick Rossenbach, Mohammad Zeineldeen, Benedikt Hilmes, Ralf Schlüter, Hermann Ney
2021	J	`jnl`	Conformer-based Hybrid ASR System for Switchboard Dataset. CoRR Mohammad Zeineldeen, Jingjing Xu, Christoph Lüscher, Wilfried Michel, Alexander Gerstenberger, Ralf Schlüter, Hermann Ney
2021	J	`jnl`	Efficient Sequence Training of Attention Models using Approximative Recombination. CoRR Nils-Philipp Wynands, Wilfried Michel, Jan Rosendahl, Ralf Schlüter, Hermann Ney
2021	A	`conf`	Equivalence of Segmental and Neural Transducer Modeling: A Proof of Concept. Interspeech Wei Zhou, Albert Zeyer, André Merboldt, Ralf Schlüter, Hermann Ney
2021	J	`jnl`	Equivalence of Segmental and Neural Transducer Modeling: A Proof of Concept. CoRR Wei Zhou, Albert Zeyer, André Merboldt, Ralf Schlüter, Hermann Ney
2021	J	`jnl`	Feature Replacement and Combination for Hybrid ASR Systems. CoRR Peter Vieting, Christoph Lüscher, Wilfried Michel, Ralf Schlüter, Hermann Ney
2021	A	`conf`	Investigating Methods to Improve Language Model Integration for Attention-Based Encoder-Decoder ASR Models. Interspeech Mohammad Zeineldeen, Aleksandr Glushko, Wilfried Michel, Albert Zeyer, Ralf Schlüter, Hermann Ney
2021	J	`jnl`	Investigating Methods to Improve Language Model Integration for Attention-based Encoder-Decoder ASR Models. CoRR Mohammad Zeineldeen, Aleksandr Glushko, Wilfried Michel, Albert Zeyer, Ralf Schlüter, Hermann Ney
2021	A	`conf`	Librispeech Transducer Model with Internal Language Model Prior Correction. Interspeech Albert Zeyer, André Merboldt, Wilfried Michel, Ralf Schlüter, Hermann Ney
2021	J	`jnl`	Librispeech Transducer Model with Internal Language Model Prior Correction. CoRR Albert Zeyer, André Merboldt, Wilfried Michel, Ralf Schlüter, Hermann Ney
2021	C	`conf`	On Architectures and Training for Raw Waveform Feature Extraction in ASR. ASRU Peter Vieting, Christoph Lüscher, Wilfried Michel, Ralf Schlüter, Hermann Ney
2021	J	`jnl`	On Language Model Integration for RNN Transducer based Speech Recognition. CoRR Wei Zhou, Zuoyun Zheng, Ralf Schlüter, Hermann Ney
2021	A	`conf`	On Sampling-Based Training Criteria for Neural Language Modeling. Interspeech Yingbo Gao, David Thulke, Alexander Gerstenberger, Khoa Viet Tran, Ralf Schlüter, Hermann Ney
2021	J	`jnl`	On Sampling-Based Training Criteria for Neural Language Modeling. CoRR Yingbo Gao, David Thulke, Alexander Gerstenberger, Khoa Viet Tran, Ralf Schlüter, Hermann Ney
2021	Misc	`conf`	Phoneme Based Neural Transducer for Large Vocabulary Speech Recognition. ICASSP Wei Zhou, Simon Berger, Ralf Schlüter, Hermann Ney
2021	J	`jnl`	Prediction of Listener Perception of Argumentative Speech in a Crowdsourced Dataset Using (Psycho-)Linguistic and Fluency Features. CoRR Yu Qiao, Sourabh Zanwar, Rishab Bhattacharyya, Daniel Wiechmann, Wei Zhou, Elma Kerz, Ralf Schlüter
2021	J	`jnl`	Self-Normalized Importance Sampling for Neural Language Modeling. CoRR Zijian Yang, Yingbo Gao, Alexander Gerstenberger, Jintao Jiang, Ralf Schlüter, Hermann Ney
2021	A	`conf`	The Impact of ASR on the Automatic Analysis of Linguistic Complexity and Sophistication in Spontaneous L2 Speech. Interspeech Yu Qiao, Wei Zhou, Elma Kerz, Ralf Schlüter
2021	J	`jnl`	The Impact of ASR on the Automatic Analysis of Linguistic Complexity and Sophistication in Spontaneous L2 Speech. CoRR Yu Qiao, Zhou Wei, Elma Kerz, Ralf Schlüter
2021	—	`conf`	Tight Integrated End-to-End Training for Cascaded Speech Translation. SLT Parnia Bahar, Tobias Bieschke, Ralf Schlüter, Hermann Ney
2021	J	`jnl`	Towards Consistent Hybrid HMM Acoustic Modeling. CoRR Tina Raissi, Eugen Beck, Ralf Schlüter, Hermann Ney
2021	J	`jnl`	Why does CTC result in peaky behavior? CoRR Albert Zeyer, Ralf Schlüter, Hermann Ney
2020	Misc	`conf`	A Comprehensive Study of Residual CNNS for Acoustic Modeling in ASR. ICASSP Vitalii Bozheniuk, Albert Zeyer, Ralf Schlüter, Hermann Ney
2020	A	`conf`	A New Training Pipeline for an Improved Neural Transducer. INTERSPEECH Albert Zeyer, André Merboldt, Ralf Schlüter, Hermann Ney
2020	J	`jnl`	A New Training Pipeline for an Improved Neural Transducer. CoRR Albert Zeyer, André Merboldt, Ralf Schlüter, Hermann Ney
2020	A	`conf`	Context-Dependent Acoustic Modeling Without Explicit Phone Clustering. INTERSPEECH Tina Raissi, Eugen Beck, Ralf Schlüter, Hermann Ney
2020	J	`jnl`	Context-Dependent Acoustic Modeling without Explicit Phone Clustering. CoRR Tina Raissi, Eugen Beck, Ralf Schlüter, Hermann Ney
2020	A	`conf`	Early Stage LM Integration Using Local and Global Log-Linear Combination. INTERSPEECH Wilfried Michel, Ralf Schlüter, Hermann Ney
2020	J	`jnl`	Early Stage LM Integration Using Local and Global Log-Linear Combination. CoRR Wilfried Michel, Ralf Schlüter, Hermann Ney
2020	Misc	`conf`	Exploring A Zero-Order Direct Hmm Based on Latent Attention for Automatic Speech Recognition. ICASSP Parnia Bahar, Nikita Makarov, Albert Zeyer, Ralf Schlüter, Hermann Ney
2020	Misc	`conf`	Frame-Level MMI as A Sequence Discriminative Training Criterion for LVCSR. ICASSP Wilfried Michel, Ralf Schlüter, Hermann Ney
2020	J	`jnl`	Full-Sum Decoding for Hybrid HMM based Speech Recognition using LSTM Language Model. CoRR Wei Zhou, Ralf Schlüter, Hermann Ney
2020	Misc	`conf`	Full-Sum Decoding for Hybrid Hmm Based Speech Recognition Using LSTM Language Model. ICASSP Wei Zhou, Ralf Schlüter, Hermann Ney
2020	Misc	`conf`	Generating Synthetic Audio Data for Attention-Based Speech Recognition Systems. ICASSP Nick Rossenbach, Albert Zeyer, Ralf Schlüter, Hermann Ney
2020	Misc	`conf`	How Much Self-Attention Do We Need? Trading Attention for Feed-Forward Layers. ICASSP Kazuki Irie, Alexander Gerstenberger, Ralf Schlüter, Hermann Ney
2020	A	`conf`	Investigation of Large-Margin Softmax in Neural Language Modeling. INTERSPEECH Jingjing Huo, Yingbo Gao, Weiyue Wang, Ralf Schlüter, Hermann Ney
2020	J	`jnl`	Investigation of Large-Margin Softmax in Neural Language Modeling. CoRR Jingjing Huo, Yingbo Gao, Weiyue Wang, Ralf Schlüter, Hermann Ney
2020	J	`jnl`	Investigations on Phoneme-Based End-To-End Speech Recognition. CoRR Albert Zeyer, Wei Zhou, Thomas Ng, Ralf Schlüter, Hermann Ney
2020	A	`conf`	LVCSR with Transformer Language Models. INTERSPEECH Eugen Beck, Ralf Schlüter, Hermann Ney
2020	Misc	`conf`	Layer-Normalized LSTM for Hybrid-Hmm and End-To-End ASR. ICASSP Mohammad Zeineldeen, Albert Zeyer, Ralf Schlüter, Hermann Ney
2020	J	`jnl`	Phoneme Based Neural Transducer for Large Vocabulary Speech Recognition. CoRR Wei Zhou, Simon Berger, Ralf Schlüter, Hermann Ney
2020	A	`conf`	Robust Beam Search for Encoder-Decoder Attention Based Speech Recognition Without Length Bias. INTERSPEECH Wei Zhou, Ralf Schlüter, Hermann Ney
2020	J	`jnl`	The RWTH ASR System for TED-LIUM Release 2: Improving Hybrid HMM with SpecAugment. CoRR Wei Zhou, Wilfried Michel, Kazuki Irie, Markus Kitza, Ralf Schlüter, Hermann Ney
2020	Misc	`conf`	The Rwth Asr System for Ted-Lium Release 2: Improving Hybrid Hmm With Specaugment. ICASSP Wei Zhou, Wilfried Michel, Kazuki Irie, Markus Kitza, Ralf Schlüter, Hermann Ney
2020	J	`jnl`	Tight Integrated End-to-End Training for Cascaded Speech Translation. CoRR Parnia Bahar, Tobias Bieschke, Ralf Schlüter, Hermann Ney
2019	C	`conf`	A Comparison of Transformer and LSTM Encoder Decoder Models for ASR. ASRU Albert Zeyer, Parnia Bahar, Kazuki Irie, Ralf Schlüter, Hermann Ney
2019	A	`conf`	An Analysis of Local Monotonic Attention Variants. INTERSPEECH André Merboldt, Albert Zeyer, Ralf Schlüter, Hermann Ney
2019	A	`conf`	Analysis of Deep Clustering as Preprocessing for Automatic Speech Recognition of Sparsely Overlapping Speech. INTERSPEECH Tobias Menne, Ilya Sklyar, Ralf Schlüter, Hermann Ney
2019	J	`jnl`	Analysis of Deep Clustering as Preprocessing for Automatic Speech Recognition of Sparsely Overlapping Speech. CoRR Tobias Menne, Ilya Sklyar, Ralf Schlüter, Hermann Ney
2019	A	`conf`	Comparison of Lattice-Free and Lattice-Based Sequence Discriminative Training Criteria for LVCSR. INTERSPEECH Wilfried Michel, Ralf Schlüter, Hermann Ney
2019	J	`jnl`	Comparison of Lattice-Free and Lattice-Based Sequence Discriminative Training Criteria for LVCSR. CoRR Wilfried Michel, Ralf Schlüter, Hermann Ney
2019	A	`conf`	Cumulative Adaptation for BLSTM Acoustic Models. INTERSPEECH Markus Kitza, Pavel Golik, Ralf Schlüter, Hermann Ney
2019	J	`jnl`	Cumulative Adaptation for BLSTM Acoustic Models. CoRR Markus Kitza, Pavel Golik, Ralf Schlüter, Hermann Ney
2019	J	`jnl`	Generating Synthetic Audio Data for Attention-Based Speech Recognition Systems. CoRR Nick Rossenbach, Albert Zeyer, Ralf Schlüter, Hermann Ney
2019	Misc	`conf`	Investigation into Joint Optimization of Single Channel Speech Enhancement and Acoustic Modeling for Robust ASR. ICASSP Tobias Menne, Ralf Schlüter, Hermann Ney
2019	J	`jnl`	LSTM Language Models for LVCSR in First-Pass Decoding and Lattice-Rescoring. CoRR Eugen Beck, Wei Zhou, Ralf Schlüter, Hermann Ney
2019	A	`conf`	Language Modeling with Deep Transformers. INTERSPEECH Kazuki Irie, Albert Zeyer, Ralf Schlüter, Hermann Ney
2019	J	`jnl`	Language Modeling with Deep Transformers. CoRR Kazuki Irie, Albert Zeyer, Ralf Schlüter, Hermann Ney
2019	Misc	`conf`	On Using 2D Sequence-to-sequence Models for Speech Recognition. ICASSP Parnia Bahar, Albert Zeyer, Ralf Schlüter, Hermann Ney
2019	—	`conf`	On Using SpecAugment for End-to-End Speech Translation. IWSLT Parnia Bahar, Albert Zeyer, Ralf Schlüter, Hermann Ney
2019	J	`jnl`	On Using SpecAugment for End-to-End Speech Translation. CoRR Parnia Bahar, Albert Zeyer, Ralf Schlüter, Hermann Ney
2019	J	`jnl`	On using 2D sequence-to-sequence models for speech recognition. CoRR Parnia Bahar, Albert Zeyer, Ralf Schlüter, Hermann Ney
2019	J	`jnl`	RWTH ASR Systems for LibriSpeech: Hybrid vs Attention - w/o Data Augmentation. CoRR Christoph Lüscher, Eugen Beck, Kazuki Irie, Markus Kitza, Wilfried Michel, Albert Zeyer, Ralf Schlüter, Hermann Ney
2019	A	`conf`	RWTH ASR Systems for LibriSpeech: Hybrid vs Attention. INTERSPEECH Christoph Lüscher, Eugen Beck, Kazuki Irie, Markus Kitza, Wilfried Michel, Albert Zeyer, Ralf Schlüter, Hermann Ney
2019	A	`conf`	Rescoring Keyword Search Confidence Estimates with Graph-Based Re-Ranking Using Acoustic Word Embeddings. INTERSPEECH Anna Piunova, Eugen Beck, Ralf Schlüter, Hermann Ney
2019	A	`conf`	Survey Talk: Modeling in Automatic Speech Recognition: Beyond Hidden Markov Models. INTERSPEECH Ralf Schlüter
2019	C	`conf`	Training Language Models for Long-Span Cross-Sentence Evaluation. ASRU Kazuki Irie, Albert Zeyer, Ralf Schlüter, Hermann Ney
2019	J	`jnl`	Training of reduced-rank linear transformations for multi-layer polynomial acoustic features for speech recognition. Speech Commun. Muhammad Ali Tahir, Heyun Huang, Albert Zeyer, Ralf Schlüter, Hermann Ney
2019	J	`jnl`	Upper and Lower Tight Error Bounds for Feature Omission with an Extension to Context Reduction. IEEE Trans. Pattern Anal. Mach. Intell. Ralf Schlüter, Eugen Beck, Hermann Ney
2018	Misc	`conf`	Acoustic Modeling of Speech Waveform Based on Multi-Resolution, Neural Network Signal Processing. ICASSP Zoltán Tüske, Ralf Schlüter, Hermann Ney
2018	A	`conf`	Comparison of BLSTM-Layer-Specific Affine Transformations for Speaker Adaptation. INTERSPEECH Markus Kitza, Ralf Schlüter, Hermann Ney
2018	A	`conf`	Improved Training of End-to-end Attention Models for Speech Recognition. INTERSPEECH Albert Zeyer, Kazuki Irie, Ralf Schlüter, Hermann Ney
2018	J	`jnl`	Improved training of end-to-end attention models for speech recognition. CoRR Albert Zeyer, Kazuki Irie, Ralf Schlüter, Hermann Ney
2018	A	`conf`	Investigation on Estimation of Sentence Probability by Combining Forward, Backward and Bi-directional LSTM-RNNs. INTERSPEECH Kazuki Irie, Zhihong Lei, Liuhui Deng, Ralf Schlüter, Hermann Ney
2018	A	`conf`	Investigation on LSTM Recurrent N-gram Language Models for Speech Recognition. INTERSPEECH Zoltán Tüske, Ralf Schlüter, Hermann Ney
2018	Misc	`conf`	Prediction of LSTM-RNN Full Context States as a Subtask for N-Gram Feedforward Language Models. ICASSP Kazuki Irie, Zhihong Lei, Ralf Schlüter, Hermann Ney
2018	A	`conf`	Segmental Encoder-Decoder Models for Large Vocabulary Automatic Speech Recognition. INTERSPEECH Eugen Beck, Mirko Hannemann, Patrick Dötsch, Ralf Schlüter, Hermann Ney
2018	—	`conf`	Sequence Modeling and Alignment for LVCSR-Systems. ITG Symposium on Speech Communication Eugen Beck, Albert Zeyer, Patrick Doetsch, André Merboldt, Ralf Schlüter, Hermann Ney
2018	—	`conf`	Speaker Adapted Beamforming for Multi-Channel Automatic Speech Recognition. SLT Tobias Menne, Ralf Schlüter, Hermann Ney
2018	J	`jnl`	Speaker Adapted Beamforming for Multi-Channel Automatic Speech Recognition. CoRR Tobias Menne, Ralf Schlüter, Hermann Ney
2017	Misc	`conf`	A comprehensive study of deep bidirectional LSTM RNNS for acoustic modeling in speech recognition. ICASSP Albert Zeyer, Patrick Doetsch, Paul Voigtlaender, Ralf Schlüter, Hermann Ney
2017	A	`conf`	CTC in the Context of Generalized Full-Sum HMM Training. INTERSPEECH Albert Zeyer, Eugen Beck, Ralf Schlüter, Hermann Ney
2017	Misc	`conf`	Faster sequence training. ICASSP Albert Zeyer, Ilia Kulikov, Ralf Schlüter, Hermann Ney
2017	J	`jnl`	Inverted Alignments for End-to-End Automatic Speech Recognition. IEEE J. Sel. Top. Signal Process. Patrick Doetsch, Mirko Hannemann, Ralf Schlüter, Hermann Ney
2017	Misc	`conf`	Investigations on byte-level convolutional neural networks for language modeling in low resource speech recognition. ICASSP Kazuki Irie, Pavel Golik, Ralf Schlüter, Hermann Ney
2017	Misc	`conf`	Noisy objective functions based on the f-divergence. ICASSP Markus Nußbaum-Thom, Ralf Schlüter, Vaibhava Goel, Hermann Ney
2017	A	`conf`	Parallel Neural Network Features for Improved Tandem Acoustic Modeling. INTERSPEECH Zoltán Tüske, Wilfried Michel, Ralf Schlüter, Hermann Ney
2017	Misc	`conf`	Returnn: The RWTH extensible training framework for universal recurrent neural networks. ICASSP Patrick Doetsch, Albert Zeyer, Paul Voigtlaender, Ilia Kulikov, Ralf Schlüter, Hermann Ney
2017	—	`conf`	The 2016 RWTH Keyword Search System for Low-Resource Languages. SPECOM Pavel Golik, Zoltán Tüske, Kazuki Irie, Eugen Beck, Ralf Schlüter, Hermann Ney
2016	J	`jnl`	A Comprehensive Study of Deep Bidirectional LSTM RNNs for Acoustic Modeling in Speech Recognition. CoRR Albert Zeyer, Patrick Doetsch, Paul Voigtlaender, Ralf Schlüter, Hermann Ney
2016	—	`conf`	Automatic Speech Recognition Based on Neural Networks. SPECOM Ralf Schlüter, Patrick Doetsch, Pavel Golik, Markus Kitza, Tobias Menne, Kazuki Irie, Zoltán Tüske, Albert Zeyer
2016	Misc	`conf`	Investigation on log-linear interpolation of multi-domain neural network language model. ICASSP Zoltán Tüske, Kazuki Irie, Ralf Schlüter, Hermann Ney
2016	A	`conf`	LSTM, GRU, Highway and a Bit of Attention: An Empirical Overview for Language Modeling in Speech Recognition. INTERSPEECH Kazuki Irie, Zoltán Tüske, Tamer Alkhouli, Ralf Schlüter, Hermann Ney
2016	J	`jnl`	RETURNN: The RWTH Extensible Training framework for Universal Recurrent Neural Networks. CoRR Patrick Doetsch, Albert Zeyer, Paul Voigtlaender, Ilya Kulikov, Ralf Schlüter, Hermann Ney
2016	—	`conf`	Robust Online Multi-Channel Speech Recognition. ITG Symposium on Speech Communication Markus Kitza, Albert Zeyer, Ralf Schlüter, Jahn Heymann, Reinhold Haeb-Umbach
2016	—	`conf`	The RWTH Aachen LVCSR system for IWSLT-2016 German Skype conversation recognition task. IWSLT Wilfried Michel, Zoltán Tüske, M. Ali Basha Shaik, Ralf Schlüter, Hermann Ney
2016	A	`conf`	Towards Online-Recognition with Deep Bidirectional LSTM Acoustic Models. INTERSPEECH Albert Zeyer, Ralf Schlüter, Hermann Ney
2015	A	`conf`	Bag-of-words input for long history representation in neural network-based language models for speech recognition. INTERSPEECH Kazuki Irie, Ralf Schlüter, Hermann Ney
2015	A	`conf`	Convolutional neural networks for acoustic modeling of raw time signal in LVCSR. INTERSPEECH Pavel Golik, Zoltán Tüske, Ralf Schlüter, Hermann Ney
2015	A	`conf`	Error bounds for context reduction and feature omission. INTERSPEECH Eugen Beck, Ralf Schlüter, Hermann Ney
2015	J	`jnl`	From Feedforward to Recurrent LSTM Neural Networks for Language Modeling. IEEE ACM Trans. Audio Speech Lang. Process. Martin Sundermeyer, Hermann Ney, Ralf Schlüter
2015	Misc	`conf`	Improved strategies for a zero oov rate LVCSR system. ICASSP M. Ali Basha Shaik, Amr El-Desoky Mousa, Stefan Hahn, Ralf Schlüter, Hermann Ney
2015	A	`conf`	Improvements in RWTH LVCSR evaluation systems for Polish, Portuguese, English, urdu, and Arabic. INTERSPEECH M. Ali Basha Shaik, Zoltán Tüske, Muhammad Ali Tahir, Markus Nußbaum-Thom, Ralf Schlüter, Hermann Ney
2015	Misc	`conf`	Integrating Gaussian mixtures into deep neural networks: Softmax layer with hidden variables. ICASSP Zoltán Tüske, Muhammad Ali Tahir, Ralf Schlüter, Hermann Ney
2015	Misc	`conf`	Investigation of mixture splitting concept for training linear bottlenecks of deep neural network acoustic models. ICASSP Muhammad Ali Tahir, Simon Wiesler, Ralf Schlüter, Hermann Ney
2015	Misc	`conf`	Investigations on sequence training of neural networks. ICASSP Simon Wiesler, Pavel Golik, Ralf Schlüter, Hermann Ney
2015	A	`conf`	Multilingual features based keyword search for very low-resource languages. INTERSPEECH Pavel Golik, Zoltán Tüske, Ralf Schlüter, Hermann Ney
2015	C	`conf`	Multilingual representations for low resource speech recognition and keyword search. ASRU Jia Cui, Brian Kingsbury, Bhuvana Ramabhadran, Abhinav Sethy, Kartik Audhkhasi, Xiaodong Cui, Ellen Kislal, Lidia Mangu, Markus Nußbaum-Thom, Michael Picheny, Zoltán Tüske, Pavel Golik, Ralf Schlüter, Hermann Ney, Mark J. F. Gales, Kate M. Knill, Anton Ragni, Haipeng Wang, Philip C. Woodland
2015	Misc	`conf`	Sequence-discriminative training of recurrent neural networks. ICASSP Paul Voigtlaender, Patrick Doetsch, Simon Wiesler, Ralf Schlüter, Hermann Ney
2015	C	`conf`	Speaker adaptive joint training of Gaussian mixture models and bottleneck features. ASRU Zoltán Tüske, Pavel Golik, Ralf Schlüter, Hermann Ney
2015	Misc	`conf`	Unsupervised adaptation of a denoising autoencoder by Bayesian Feature Enhancement for reverberant asr under mismatch conditions. ICASSP Jahn Heymann, Reinhold Haeb-Umbach, Pavel Golik, Ralf Schlüter
2014	Misc	`conf`	A family of discriminative training criteria based on the F-divergence for deep neural networks. ICASSP Markus Nußbaum-Thom, Xiaodong Cui, Ralf Schlüter, Vaibhava Goel, Hermann Ney
2014	A	`conf`	Acoustic modeling with deep neural networks using raw time signal for LVCSR. INTERSPEECH Zoltán Tüske, Pavel Golik, Ralf Schlüter, Hermann Ney
2014	A	`conf`	Data augmentation, feature combination, and multilingual neural networks to improve ASR and KWS performance for low-resource languages. INTERSPEECH Zoltán Tüske, Pavel Golik, David Nolden, Ralf Schlüter, Hermann Ney
2014	A	`conf`	Lattice decoding and rescoring with long-Span neural network language models. INTERSPEECH Martin Sundermeyer, Zoltán Tüske, Ralf Schlüter, Hermann Ney
2014	Misc	`conf`	Mean-normalized stochastic gradient for large-scale deep learning. ICASSP Simon Wiesler, Alexander Richard, Ralf Schlüter, Hermann Ney
2014	Misc	`conf`	Multilingual MRASTA features for low-resource keyword search and speech recognition systems. ICASSP Zoltán Tüske, David Nolden, Ralf Schlüter, Hermann Ney
2014	B	`conf`	Open-Lexicon Language Modeling Combining Word and Character Levels. ICFHR Michal Kozielski, Martin Matysiak, Patrick Doetsch, Ralf Schlüter, Hermann Ney
2014	Misc	`conf`	RASR/NN: The RWTH neural network toolkit for speech recognition. ICASSP Simon Wiesler, Alexander Richard, Pavel Golik, Ralf Schlüter, Hermann Ney
2014	A	`conf`	RWTH LVCSR systems for quaero and EU-bridge: German, Polish, Spanish and Portuguese. INTERSPEECH M. Ali Basha Shaik, Zoltán Tüske, Muhammad Ali Tahir, Markus Nußbaum-Thom, Ralf Schlüter, Hermann Ney
2014	Misc	`conf`	The RWTH English lecture recognition system. ICASSP Simon Wiesler, Kazuki Irie, Zoltán Tüske, Ralf Schlüter, Hermann Ney
2014	A	`conf`	Word pair approximation for more efficient decoding with high-order language models. INTERSPEECH David Nolden, Ralf Schlüter, Hermann Ney
2014	A	`conf`	rwthlm - the RWTH aachen university neural network language modeling toolkit. INTERSPEECH Martin Sundermeyer, Ralf Schlüter, Hermann Ney
2013	Misc	`conf`	A critical evaluation of stochastic algorithms for convex optimization. ICASSP Simon Wiesler, Alexander Richard, Ralf Schlüter, Hermann Ney
2013	Misc	`conf`	A high-performance Cantonese keyword search system. ICASSP Brian Kingsbury, Jia Cui, Xiaodong Cui, Mark J. F. Gales, Kate M. Knill, Jonathan Mamou, Lidia Mangu, David Nolden, Michael Picheny, Bhuvana Ramabhadran, Ralf Schlüter, Abhinav Sethy, Philip C. Woodland
2013	Misc	`conf`	Advanced search space pruning with acoustic look-ahead for WFST based LVCSR. ICASSP David Nolden, Ralf Schlüter, Hermann Ney
2013	Misc	`conf`	Comparison of feedforward and recurrent neural network language models. ICASSP Martin Sundermeyer, Ilya Oparin, Jean-Luc Gauvain, B. Freiberg, Ralf Schlüter, Hermann Ney
2013	Misc	`conf`	Deep hierarchical bottleneck MRASTA features for LVCSR. ICASSP Zoltán Tüske, Ralf Schlüter, Hermann Ney
2013	A	`conf`	Development of the RWTH transcription system for slovenian. INTERSPEECH Pavel Golik, Zoltán Tüske, Ralf Schlüter, Hermann Ney
2013	C	`conf`	Efficient nearly error-less LVCSR decoding based on incremental forward and backward passes. ASRU David Nolden, Ralf Schlüter, Hermann Ney
2013	Misc	`conf`	Feature combination and stacking of recurrent and non-recurrent neural networks for LVCSR. ICASSP Christian Plahl, Michal Kozielski, Ralf Schlüter, Hermann Ney
2013	A	`conf`	Feature-rich sub-lexical language models using a maximum entropy approach for German LVCSR. INTERSPEECH M. Ali Basha Shaik, Amr El-Desoky Mousa, Ralf Schlüter, Hermann Ney
2013	A	`conf`	Improving LVCSR with hidden conditional random fields for grapheme-to-phoneme conversion. INTERSPEECH Stefan Hahn, Patrick Lehnen, Simon Wiesler, Ralf Schlüter, Hermann Ney
2013	Misc	`conf`	Investigation on cross- and multilingual MLP features under matched and mismatched acoustical conditions. ICASSP Zoltán Tüske, Joel Pinto, Daniel Willett, Ralf Schlüter
2013	J	`jnl`	Investigations on an EM-Style Optimization Algorithm for Discriminative Training of HMMs. IEEE ACM Trans. Audio Speech Lang. Process. Georg Heigold, Hermann Ney, Ralf Schlüter
2013	J	`jnl`	Lexical Prefix Tree and WFST: A Comparison of Two Dynamic Search Concepts for LVCSR. IEEE Trans. Speech Audio Process. David Rybach, Hermann Ney, Ralf Schlüter
2013	A	`conf`	Morpheme level hierarchical pitman-yor class-based language models for LVCSR of morphologically rich languages. INTERSPEECH Amr El-Desoky Mousa, M. Ali Basha Shaik, Ralf Schlüter, Hermann Ney
2013	A	`conf`	Multilingual hierarchical MRASTA features for ASR. INTERSPEECH Zoltán Tüske, Ralf Schlüter, Hermann Ney
2013	B	`conf`	Novel tight classification error bounds under mismatch conditions based on f-Divergence. ITW Ralf Schlüter, Markus Nußbaum-Thom, Eugen Beck, Tamer Alkhouli, Hermann Ney
2013	Misc	`conf`	Open vocabulary handwriting recognition using combined word-level and character-level language models. ICASSP Michal Kozielski, David Rybach, Stefan Hahn, Ralf Schlüter, Hermann Ney
2013	A	`conf`	Relative error bounds for statistical classifiers based on the f-divergence. INTERSPEECH Markus Nußbaum-Thom, Eugen Beck, Tamer Alkhouli, Ralf Schlüter, Hermann Ney
2013	Misc	`conf`	System combination and score normalization for spoken term detection. ICASSP Jonathan Mamou, Jia Cui, Xiaodong Cui, Mark J. F. Gales, Brian Kingsbury, Kate M. Knill, Lidia Mangu, David Nolden, Michael Picheny, Bhuvana Ramabhadran, Ralf Schlüter, Abhinav Sethy, Philip C. Woodland
2013	—	`conf`	The RWTH Aachen German and English LVCSR systems for IWSLT-2013. IWSLT (Evaluation Campaign) M. Ali Basha Shaik, Zoltán Tüske, Simon Wiesler, Markus Nußbaum-Thom, Stephan Peitz, Ralf Schlüter, Hermann Ney
2013	A	`conf`	Training log-linear acoustic models in higher-order polynomial feature space for speech recognition. INTERSPEECH Muhammad Ali Tahir, Heyun Huang, Ralf Schlüter, Hermann Ney, Louis ten Bosch, Bert Cranen, Lou Boves
2012	A	`conf`	Accelerated Batch Learning of Convex Log-linear Models for LVCSR. INTERSPEECH Simon Wiesler, Ralf Schlüter, Hermann Ney
2012	Misc	`conf`	Basis vector orthogonalization for an improved kernel gradient matching pursuit method. ICASSP Yotaro Kubo, Shinji Watanabe, Atsushi Nakamura, Simon Wiesler, Ralf Schlüter, Hermann Ney
2012	Misc	`conf`	Comparison and combination of different CRBE based MLP features for LVCSR. ICASSP Zoltán Tüske, Ralf Schlüter, Hermann Ney
2012	A	`conf`	Context-Dependent MLPs for LVCSR: TANDEM, Hybrid or Both? INTERSPEECH Zoltán Tüske, Ralf Schlüter, Hermann Ney, Martin Sundermeyer
2012	J	`jnl`	Discriminative Training for Automatic Speech Recognition: Modeling, Criteria, Optimization, Implementation, and Performance. IEEE Signal Process. Mag. Georg Heigold, Hermann Ney, Ralf Schlüter, Simon Wiesler
2012	J	`jnl`	Does the Cost Function Matter in Bayes Decision Rule? IEEE Trans. Pattern Anal. Mach. Intell. Ralf Schlüter, Markus Nußbaum-Thom, Hermann Ney
2012	Misc	`conf`	Extended search space pruning in LVCSR. ICASSP David Nolden, Ralf Schlüter, Hermann Ney
2012	—	`conf`	Hierarchical hybrid language models for open vocabulary continuous speech recognition using WFST. SAPA@INTERSPEECH M. Ali Basha Shaik, David Rybach, Stefan Hahn, Ralf Schlüter, Hermann Ney
2012	A	`conf`	Investigation of Maximum Entropy Hybrid Language Models for Open Vocabulary German and Polish LVCSR. INTERSPEECH M. Ali Basha Shaik, Amr El-Desoky Mousa, Ralf Schlüter, Hermann Ney
2012	Misc	`conf`	Investigations on the use of morpheme level features in Language Models for Arabic LVCSR. ICASSP Amr El-Desoky Mousa, Ralf Schlüter, Hermann Ney
2012	Misc	`conf`	Joining advantages of word-conditioned and token-passing decoding. ICASSP David Nolden, David Rybach, Ralf Schlüter, Hermann Ney
2012	A	`conf`	LSTM Neural Networks for Language Modeling. INTERSPEECH Martin Sundermeyer, Ralf Schlüter, Hermann Ney
2012	A	`conf`	Morpheme Level Feature-based Language Models for German LVCSR. INTERSPEECH Amr El-Desoky Mousa, M. Ali Basha Shaik, Ralf Schlüter, Hermann Ney
2012	—	`conf`	Non-stationary signal processing and its application in speech recognition. SAPA@INTERSPEECH Zoltán Tüske, Friedhelm R. Drepper, Ralf Schlüter
2012	—	`conf`	Phase difference of filter-stable part-tones as acoustic feature. SSP Zoltán Tüske, Friedhelm R. Drepper, Ralf Schlüter
2012	A	`conf`	Posterior-Scaled MPE: Novel Discriminative Training Criteria. INTERSPEECH Markus Nußbaum-Thom, Zoltán Tüske, Georg Heigold, Ralf Schlüter, Hermann Ney
2012	A	`conf`	Search Space Pruning Based on Anticipated Path Recombination in LVCSR. INTERSPEECH David Nolden, Ralf Schlüter, Hermann Ney
2012	Misc	`conf`	Silence is golden: Modeling non-speech events in WFST-based dynamic network decoders. ICASSP David Rybach, Ralf Schlüter, Hermann Ney
2012	A	`conf`	Simultaneous Discriminative Training and Mixture Splitting of HMMs for Speech Recognition. INTERSPEECH Muhammad Ali Tahir, Markus Nußbaum-Thom, Ralf Schlüter, Hermann Ney
2012	J	`jnl`	WFST Enabled Solutions to ASR Problems: Beyond HMM Decoding. IEEE Trans. Speech Audio Process. Björn Hoffmeister, Georg Heigold, David Rybach, Ralf Schlüter, Hermann Ney
2011	A	`conf`	A Study on Speaker Normalized MLP Features in LVCSR. INTERSPEECH Zoltán Tüske, Christian Plahl, Ralf Schlüter
2011	Misc	`conf`	A comparative analysis of dynamic network decoding. ICASSP David Rybach, Ralf Schlüter, Hermann Ney
2011	C	`conf`	A convergence analysis of log-linear training and its application to speech recognition. ASRU Simon Wiesler, Ralf Schlüter, Hermann Ney
2011	A	`conf`	Acoustic Look-Ahead for More Efficient Decoding in LVCSR. INTERSPEECH David Nolden, Ralf Schlüter, Hermann Ney
2011	A	`conf`	Compound Word Recombination for German LVCSR. INTERSPEECH Markus Nußbaum-Thom, Amr El-Desoky Mousa, Ralf Schlüter, Hermann Ney
2011	C	`conf`	Cross-lingual portability of Chinese and english neural network features for French and German LVCSR. ASRU Christian Plahl, Ralf Schlüter, Hermann Ney
2011	C	`conf`	Discriminative splitting of Gaussian/log-linear mixture HMMs for speech recognition. ASRU Muhammad Ali Tahir, Ralf Schlüter, Hermann Ney
2011	J	`jnl`	Equivalence of Generative and Log-Linear Models. IEEE Trans. Speech Audio Process. Georg Heigold, Hermann Ney, Patrick Lehnen, Tobias Gass, Ralf Schlüter
2011	Misc	`conf`	Exploiting sparseness of backing-off language models for efficient look-ahead in LVCSR. ICASSP David Nolden, Hermann Ney, Ralf Schlüter
2011	Misc	`conf`	Feature selection for log-linear acoustic models. ICASSP Simon Wiesler, Alexander Richard, Yotaro Kubo, Ralf Schlüter, Hermann Ney
2011	A	`conf`	Hybrid Language Models Using Mixed Types of Sub-Lexical Units for Open Vocabulary German LVCSR. INTERSPEECH M. Ali Basha Shaik, Amr El-Desoky Mousa, Ralf Schlüter, Hermann Ney
2011	A	`conf`	Improved Acoustic Feature Combination for LVCSR by Neural Networks. INTERSPEECH Christian Plahl, Ralf Schlüter, Hermann Ney
2011	A	`conf`	Log-Linear Optimization of Second-Order Polynomial Features with Subsequent Dimension Reduction for Speech Recognition. INTERSPEECH Muhammad Ali Tahir, Ralf Schlüter, Hermann Ney
2011	A	`conf`	Morpheme Based Factored Language Models for German LVCSR. INTERSPEECH Amr El-Desoky Mousa, M. Ali Basha Shaik, Ralf Schlüter, Hermann Ney
2011	Misc	`conf`	Non-stationary feature extraction for automatic speech recognition. ICASSP Zoltán Tüske, Pavel Golik, Ralf Schlüter, Friedhelm R. Drepper
2011	A	`conf`	On the Estimation of Discount Parameters for Language Model Smoothing. INTERSPEECH Martin Sundermeyer, Ralf Schlüter, Hermann Ney
2011	J	`jnl`	On the Relationship Between Bayes Risk and Word Error Rate in ASR. IEEE Trans. Speech Audio Process. Ralf Schlüter, Markus Nußbaum-Thom, Hermann Ney
2011	—	`conf`	Speech recognition for machine translation in Quaero. IWSLT Lori Lamel, Sandrine Courcinous, Julien Despres, Jean-Luc Gauvain, Yvan Josse, Kevin Kilgour, Florian Kraft, Viet Bac Le, Hermann Ney, Markus Nußbaum-Thom, Ilya Oparin, Tim Schlippe, Ralf Schlüter, Tanja Schultz, Thiago Fraga-Silva, Sebastian Stüker, Martin Sundermeyer, Bianca Vieru, Ngoc Thang Vu, Alex Waibel, Cécile Woehrling
2011	Misc	`conf`	Subspace pursuit method for kernel-log-linear models. ICASSP Yotaro Kubo, Simon Wiesler, Ralf Schlüter, Hermann Ney, Shinji Watanabe, Atsushi Nakamura, Tetsunori Kobayashi
2011	Misc	`conf`	The RWTH 2010 Quaero ASR evaluation system for English, French, and German. ICASSP Martin Sundermeyer, Markus Nußbaum-Thom, Simon Wiesler, Christian Plahl, Amr El-Desoky Mousa, Stefan Hahn, David Nolden, Ralf Schlüter, Hermann Ney
2011	Misc	`conf`	Using morpheme and syllable based sub-words for polish LVCSR. ICASSP M. Ali Basha Shaik, Amr El-Desoky Mousa, Ralf Schlüter, Hermann Ney
2010	—	`conf`	A Hybrid Morphologically Decomposed Factored Language Models for Arabic LVCSR. HLT-NAACL Amr El-Desoky, Ralf Schlüter, Hermann Ney
2010	A	`conf`	A discriminative splitting criterion for phonetic decision trees. INTERSPEECH Simon Wiesler, Georg Heigold, Markus Nußbaum-Thom, Ralf Schlüter, Hermann Ney
2010	Misc	`conf`	Discriminative HMMS, log-linear models, and CRFS: What is the difference? ICASSP Georg Heigold, Simon Wiesler, Markus Nußbaum-Thom, Patrick Lehnen, Ralf Schlüter, Hermann Ney
2010	A	`conf`	Discriminative adaptation for log-linear acoustic models. INTERSPEECH Jonas Lööf, Ralf Schlüter, Hermann Ney
2010	—	`conf`	Evaluation of automatic transcription systems for the judicial domain. SLT Jonas Lööf, Daniele Falavigna, Ralf Schlüter, Diego Giuliani, Roberto Gretter, Hermann Ney
2010	A	`conf`	Hierarchical bottle neck features for LVCSR. INTERSPEECH Christian Plahl, Ralf Schlüter, Hermann Ney
2010	J	`jnl`	Margin-Based Discriminative Training for String Recognition. IEEE J. Sel. Top. Signal Process. Georg Heigold, Philippe Dreuw, Stefan Hahn, Ralf Schlüter, Hermann Ney
2010	A	`conf`	On the relation of Bayes risk, word error, and word posteriors in ASR. INTERSPEECH Ralf Schlüter, Markus Nußbaum-Thom, Hermann Ney
2010	A	`conf`	Parallel lexical-tree based LVCSR on multi-core processors. INTERSPEECH Naveen Parihar, Ralf Schlüter, David Rybach, Eric A. Hansen
2010	A	`conf`	Revisiting VTLN using linear transformation on conventional MFCC. INTERSPEECH Doddipatla Rama Sanand, Ralf Schlüter, Hermann Ney
2010	—	`conf`	Sub-lexical language models for German LVCSR. SLT Amr El-Desoky Mousa, M. Ali Basha Shaik, Ralf Schlüter, Hermann Ney
2010	A	`conf`	The RWTH 2009 quaero ASR evaluation system for English and German. INTERSPEECH Markus Nußbaum-Thom, Simon Wiesler, Martin Sundermeyer, Christian Plahl, Stefan Hahn, Ralf Schlüter, Hermann Ney
2010	A	`conf`	Time conditioned search in automatic speech recognition reconsidered. INTERSPEECH David Nolden, Hermann Ney, Ralf Schlüter
2009	Misc	`conf`	Audio segmentation for speech recognition using segment features. ICASSP David Rybach, Christian Gollan, Ralf Schlüter, Hermann Ney
2009	—	`conf`	Automatic Transcription of Courtroom Recordings in the JUMAS project. ICT4Justice Daniele Falavigna, Diego Giuliani, Roberto Gretter, Jonas Lööf, Christian Gollan, Ralf Schlüter, Hermann Ney
2009	A	`conf`	Bayes risk approximations using time overlap with an application to system combination. INTERSPEECH Björn Hoffmeister, Ralf Schlüter, Hermann Ney
2009	A	`conf`	Development of the GALE 2008 Mandarin LVCSR system. INTERSPEECH Christian Plahl, Björn Hoffmeister, Georg Heigold, Jonas Lööf, Ralf Schlüter, Hermann Ney
2009	C	`conf`	Generalized likelihood ratio discriminant analysis. ASRU Muhammad Ali Tahir, Georg Heigold, Christian Plahl, Ralf Schlüter, Hermann Ney
2009	A	`conf`	Investigating the use of morphological decomposition and diacritization for improving Arabic LVCSR. INTERSPEECH Amr El-Desoky, Christian Gollan, David Rybach, Ralf Schlüter, Hermann Ney
2009	A	`conf`	Investigations on convex optimization using log-linear HMMs for digit string recognition. INTERSPEECH Georg Heigold, David Rybach, Ralf Schlüter, Hermann Ney
2009	C	`conf`	Investigations on features for log-linear acoustic models in continuous speech recognition. ASRU Simon Wiesler, Markus Nußbaum-Thom, Georg Heigold, Ralf Schlüter, Hermann Ney
2009	A	`conf`	Log-linear model combination with word-dependent scaling factors. INTERSPEECH Björn Hoffmeister, Ruoying Liang, Ralf Schlüter, Hermann Ney
2009	Misc	`conf`	Modified MPE/MMI in a transducer-based framework. ICASSP Georg Heigold, Ralf Schlüter, Hermann Ney
2009	A	`conf`	Parallel fast likelihood computation for LVCSR using mixture decomposition. INTERSPEECH Naveen Parihar, Ralf Schlüter, David Rybach, Eric A. Hansen
2009	A	`conf`	The RWTH aachen university open source speech recognition system. INTERSPEECH David Rybach, Christian Gollan, Georg Heigold, Björn Hoffmeister, Jonas Lööf, Ralf Schlüter, Hermann Ney
2008	Misc	`conf`	A GIS-like training algorithm for log-linear models with hidden variables. ICASSP Georg Heigold, Thomas Deselaers, Ralf Schlüter, Hermann Ney
2008	A	`conf`	Development of the SRI/nightingale Arabic ASR system. INTERSPEECH Dimitra Vergyri, Arindam Mandal, Wen Wang, Andreas Stolcke, Jing Zheng, Martin Graciarena, David Rybach, Christian Gollan, Ralf Schlüter, Katrin Kirchhoff, Arlo Faria, Nelson Morgan
2008	A*	`conf`	Modified MMI/MPE: a direct evaluation of the margin in speech recognition. ICML Georg Heigold, Thomas Deselaers, Ralf Schlüter, Hermann Ney
2008	A	`conf`	On the equivalence of Gaussian and log-linear HMMs. INTERSPEECH Georg Heigold, Patrick Lehnen, Ralf Schlüter, Hermann Ney
2008	A	`conf`	Recent improvements of the RWTH GALE Mandarin LVCSR system. INTERSPEECH Christian Plahl, Björn Hoffmeister, Mei-Yuh Hwang, Danju Lu, Georg Heigold, Jonas Lööf, Ralf Schlüter, Hermann Ney
2008	A	`conf`	iCNC and iROVER: the limits of improving system combination with classification? INTERSPEECH Björn Hoffmeister, Ralf Schlüter, Hermann Ney
2007	C	`conf`	Advances in Arabic broadcast news transcription at RWTH. ASRU David Rybach, Stefan Hahn, Christian Gollan, Ralf Schlüter, Hermann Ney
2007	A	`conf`	An improved method for unsupervised training of LVCSR systems. INTERSPEECH Christian Gollan, Stefan Hahn, Ralf Schlüter, Hermann Ney
2007	—	`conf`	Cross-Site and Intra-Site ASR System Combination: Comparisons on Lattice and 1-Best Methods. ICASSP (4) Björn Hoffmeister, Dustin Hillard, Stefan Hahn, Ralf Schlüter, Mari Ostendorf, Hermann Ney
2007	C	`conf`	Development of the 2007 RWTH Mandarin LVCSR system. ASRU Björn Hoffmeister, Christian Plahl, Peter Fritz, Georg Heigold, Jonas Lööf, Ralf Schlüter, Hermann Ney
2007	A	`conf`	Efficient estimation of speaker-specific projecting feature transforms. INTERSPEECH Jonas Lööf, Ralf Schlüter, Hermann Ney
2007	—	`conf`	Gammatone Features and Feature Combination for Large Vocabulary Speech Recognition. ICASSP (4) Ralf Schlüter, Ilja Bezrukov, Hermann Wagner, Hermann Ney
2007	A	`conf`	Hierarchical neural networks feature extraction for LVCSR system. INTERSPEECH Fabio Valente, Jithendra Vepa, Christian Plahl, Christian Gollan, Hynek Hermansky, Ralf Schlüter
2007	A	`conf`	On the equivalence of Gaussian HMM and Gaussian HMM-like hidden conditional random fields. INTERSPEECH Georg Heigold, Ralf Schlüter, Hermann Ney
2007	A	`conf`	The RWTH 2007 TC-STAR evaluation system for european English and Spanish. INTERSPEECH Jonas Lööf, Christian Gollan, Stefan Hahn, Georg Heigold, Björn Hoffmeister, Christian Plahl, David Rybach, Ralf Schlüter, Hermann Ney
2007	J	`jnl`	Using multiple acoustic feature sets for speech recognition. Speech Commun. András Zolnay, Daniil Kocharov, Ralf Schlüter, Hermann Ney
2007	—	`conf`	iROVER: Improving System Combination with Classification. HLT-NAACL (Short Papers) Dustin Hillard, Björn Hoffmeister, Mari Ostendorf, Ralf Schlüter, Hermann Ney
2006	A	`conf`	Feature combination using linear discriminant analysis and its pitfalls. INTERSPEECH Ralf Schlüter, András Zolnay, Hermann Ney
2006	A	`conf`	Frame based system combination and a comparison with weighted ROVER and CNC. INTERSPEECH Björn Hoffmeister, Tobias Klein, Ralf Schlüter, Hermann Ney
2006	A	`conf`	The 2006 RWTH parliamentary speeches transcription system. INTERSPEECH Jonas Lööf, Maximilian Bisani, Christian Gollan, Georg Heigold, Björn Hoffmeister, Christian Plahl, Ralf Schlüter, Hermann Ney
2005	—	`conf`	Acoustic Feature Combination for Robust Speech Recognition. ICASSP (1) András Zolnay, Ralf Schlüter, Hermann Ney
2005	A	`conf`	Articulatory motivated acoustic features for speech recognition. INTERSPEECH Daniil Kocharov, András Zolnay, Ralf Schlüter, Hermann Ney
2005	A	`conf`	Bayes risk minimization using metric loss functions. INTERSPEECH Ralf Schlüter, T. Scharrenbach, Volker Steinbiss, Hermann Ney
2005	—	`conf`	Cross Domain Automatic Transcription on the TC-STAR EPPS Corpus. ICASSP (1) Christian Gollan, Maximilian Bisani, Stephan Kanthak, Ralf Schlüter, Hermann Ney
2005	A	`conf`	Investigations on error minimizing training criteria for discriminative training in automatic speech recognition. INTERSPEECH Wolfgang Macherey, Lars Haferkamp, Ralf Schlüter, Hermann Ney
2004	A	`conf`	Discriminative training with tied covariance matrices. INTERSPEECH Wolfgang Macherey, Ralf Schlüter, Hermann Ney
2003	A	`conf`	Extraction methods of voicing feature for robust speech recognition. INTERSPEECH András Zolnay, Ralf Schlüter, Hermann Ney
2002	A	`conf`	Robust speech recognition using a voiced-unvoiced feature. INTERSPEECH András Zolnay, Ralf Schlüter, Hermann Ney
2001	J	`jnl`	Comparison of discriminative training criteria and optimization methods for speech recognition. Speech Commun. Ralf Schlüter, Wolfgang Macherey, Boris Müller, Hermann Ney
2001	Misc	`conf`	Computing Mel-frequency cepstral coefficients on the power spectrum. ICASSP Sirko Molau, Michael Pitz, Ralf Schlüter, Hermann Ney
2001	J	`jnl`	Confidence measures for large vocabulary continuous speech recognition. IEEE Trans. Speech Audio Process. Frank Wessel, Ralf Schlüter, Klaus Macherey, Hermann Ney
2001	Misc	`conf`	Explicit word error minimization using word hypothesis posterior probabilities. ICASSP Frank Wessel, Ralf Schlüter, Hermann Ney
2001	J	`jnl`	Model-based MCE bound to the true Bayes' error. IEEE Signal Process. Lett. Ralf Schlüter, Hermann Ney
2001	Misc	`conf`	Using phase spectrum information for improved speech recognition performance. ICASSP Ralf Schlüter, Hermann Ney
2001	A	`conf`	Vocal tract normalization equals linear transformation in cepstral space. INTERSPEECH Michael Pitz, Sirko Molau, Ralf Schlüter, Hermann Ney
2000	—	`—`	Investigations on discriminative training criteria. Ralf Schlüter
2000	Misc	`conf`	Recent improvements of the RWTH large vocabulary speech recognition system on spontaneous speech. ICASSP Achim Sixtus, Sirko Molau, Stephan Kanthak, Ralf Schlüter, Hermann Ney
2000	A	`conf`	Speech recognition using context conditional word posterior probabilities. INTERSPEECH Ralf Schlüter, Frank Wessel, Hermann Ney
2000	—	`conf`	The RWTH Large Vocabulary Speech Recognition System for Spontaneous Speech. KONVENS Stephan Kanthak, Sirko Molau, Achim Sixtus, Ralf Schlüter, Hermann Ney
2000	Misc	`conf`	Using posterior word probabilities for improved speech recognition. ICASSP Frank Wessel, Ralf Schlüter, Hermann Ney
1999	—	`conf`	A combined maximum mutual information and maximum likelihood approach for mixture density splitting. EUROSPEECH Ralf Schlüter, Wolfgang Macherey, Boris Müller, Hermann Ney
1999	—	`conf`	Discriminative Training of Gaussian Mixtures for Image Object Recognition. DAGM-Symposium Jörg Dahmen, Ralf Schlüter, Hermann Ney
1998	Misc	`conf`	Comparison of discriminative training criteria. ICASSP Ralf Schlüter, Wolfgang Macherey
1998	Misc	`conf`	Using word probabilities as confidence measures. ICASSP Frank Wessel, Klaus Macherey, Ralf Schlüter
1997	—	`conf`	Comparison of optimization methods for discriminative training criteria. EUROSPEECH Ralf Schlüter, Wolfgang Macherey, Stephan Kanthak, Hermann Ney, Lutz Welling