Ricardo Ribeiro

115 papers A* 3B 7C 2Misc 3Journal 55Unranked 43

Year	Rank	Type	Title / Venue / Authors
2025	J	`jnl`	Atribuição de Descritores a Acórdãos do Supremo Tribunal de Justiça Português com base em Representações Locais Esparsas. Linguamática Martim Zanatti, Ricardo Ribeiro, H. Sofia Pinto, José Borbinha
2025	C	`conf`	Exploring Metric Correlations for Legal Text Summarization Evaluation. ICAIL Martim Zanatti, Ricardo Ribeiro, H. Sofia Pinto
2025	J	`jnl`	Mining population opinion about local police. Multim. Tools Appl. Kenny Matos, Ricardo Ribeiro, João C. Ferreira
2025	J	`jnl`	SA-MAIS: Hybrid automatic sentiment analyser for stock market. J. Inf. Sci. Bruno Taborda, Ana Maria de Almeida, José Carlos Dias, Fernando Batista, Ricardo Ribeiro
2025	J	`jnl`	Towards Cyberbullying Detection: Building, Benchmarking and Longitudinal Analysis of Aggressiveness and Conflicts/Attacks Datasets From Twitter. IEEE Trans. Affect. Comput. Paula Ferreira, Nádia Salgado Pereira, Hugo Rosa, Sofia Oliveira, Luísa Coheur, Sofia Mateus Francisco, Sidclay Bezerra de Souza, Ricardo Ribeiro, João Paulo Carvalho, Paula Paulino, Isabel Trancoso, Ana Margarida Veiga Simão
2024	J	`jnl`	A comprehensive review on automatic hate speech detection in the age of the transformer. Soc. Netw. Anal. Min. Gil Ramos, Fernando Batista, Ricardo Ribeiro, Pedro Fialho, Sérgio Moro, António Fonseca, Rita Guerra, Paula Carvalho, Catarina Marques, Cláudia Silva
2024	—	`conf`	Bypassing the Nuances of Portuguese Covert Hate Speech Through Contextual Analysis. EPIA (3) Gil Ramos, Fernando Batista, Ricardo Ribeiro, Pedro Fialho, Sérgio Moro, António Fonseca, Rita Guerra, Paula Carvalho, Catarina Marques, Cláudia Silva
2024	—	`conf`	Contributions to Legal Document Summarization: Judgments from the Portuguese Supreme Court of Justice. SLATE Margarida Rebelo Dias, Ricardo Ribeiro, H. Sofia Pinto
2024	—	`conf`	Counter Hate Speech Detection in Youtube Conversations. IPMU (3) Pedro Fialho, Ricardo Ribeiro, Fernando Batista, Gil Ramos, António Fonseca, Sérgio Moro, Rita Guerra, Paula Carvalho, Catarina Marques, Cláudia Silva
2024	J	`jnl`	Leveraging Transfer Learning for Hate Speech Detection in Portuguese Social Media Posts. IEEE Access Gil Ramos, Fernando Batista, Ricardo Ribeiro, Pedro Fialho, Sérgio Moro, António Fonseca, Rita Guerra, Paula Carvalho, Catarina Marques, Cláudia Silva
2024	—	`conf`	Segmentation Model for Judgments of the Portuguese Supreme Court of Justice. EPIA (1) Martim Zanatti, Ricardo Ribeiro, H. Sofia Pinto
2024	—	`conf`	Unveiling Patterns of Hate Speech in the Portuguese Sphere: A Social Network Analysis Approach. IPMU (3) Catarina Pontes, António Fonseca, Sérgio Moro, Fernando Batista, Ricardo Ribeiro, Catarina Marques, Paula Carvalho, Cláudia Silva, Rita Guerra
2023	A*	`conf`	Automatic Recognition of the General-Purpose Communicative Functions Defined by the ISO 24617-2 Standard for Dialog Act Annotation (Extended Abstract). IJCAI Eugénio Ribeiro, Ricardo Ribeiro, David Martins de Matos
2023	J	`jnl`	Diachronic profile of startup companies through social media. Soc. Netw. Anal. Min. Ana Rita Peixoto, Ana de Almeida, Nuno Antonio, Fernando Batista, Ricardo Ribeiro
2023	J	`jnl`	Semantic similarity for mobile application recommendation under scarce user data. Eng. Appl. Artif. Intell. João Coelho, Diogo Mano, Beatriz Paula, Carlos Coutinho, João Oliveira, Ricardo Ribeiro, Fernando Batista
2023	J	`jnl`	Social Media Insights About COVID-19 in Portugal: A Text Mining Approach. J. Mobile Multimedia Carolina Ferraz Marreiros, João Bone, João C. Ferreira, Ricardo Ribeiro
2023	J	`jnl`	Unlocking the power of Twitter communities for startups. Appl. Netw. Sci. Ana Rita Peixoto, Ana de Almeida, Nuno Antonio, Fernando Batista, Ricardo Ribeiro, Elsa Cardoso
2022	—	`conf`	Analysis of the Tourist's Behavior in Lisbon Using Data from a Mobile Operator. INTSYS Bruno Francisco, Ricardo Ribeiro, Fernando Batista, João Ferreira
2022	J	`jnl`	Automatic Recognition of the General-Purpose Communicative Functions Defined by the ISO 24617-2 Standard for Dialog Act Annotation. J. Artif. Intell. Res. Eugénio Ribeiro, Ricardo Ribeiro, David Martins de Matos
2022	—	`conf`	Classification of Public Administration Complaints. SLATE Francisco Caldeira, Luís Nunes, Ricardo Ribeiro
2022	—	`conf`	Comparing Different Approaches for Detecting Hate Speech in Online Portuguese Comments. SLATE Bernardo Cunha Matos, Raquel Bento Santos, Paula Carvalho, Ricardo Ribeiro, Fernando Batista
2022	B	`conf`	Hate Speech Dynamics Against African descent, Roma and LGBTQI Communities in Portugal. LREC Paula Carvalho, Bernardo Cunha Matos, Raquel Bento Santos, Fernando Batista, Ricardo Ribeiro
2022	J	`jnl`	Learning Low-Dimensional Semantics for Music and Language via Multi-Subject fMRI. Neuroinformatics Francisco Afonso Raposo, David Martins de Matos, Ricardo Ribeiro
2022	J	`jnl`	Learning Rhetorical Structure Theory-based descriptions of observed behaviour. CoRR Luís Miguel Botelho, Luís Nunes, Ricardo Ribeiro, Rui J. Lopes
2022	—	`conf`	Semi-Supervised Annotation of Portuguese Hate Speech Across Social Media Domains. SLATE Raquel Bento Santos, Bernardo Cunha Matos, Paula Carvalho, Fernando Batista, Ricardo Ribeiro
2022	—	`conf`	The Elusive Features of Success in Soccer Passes: A Machine Learning Perspective. icSPORTS Hugo Muacho, Ricardo Ribeiro, Rui J. Lopes
2022	J	`jnl`	Towards Learning Through Open-Domain Dialog. CoRR Eugénio Ribeiro, Ricardo Ribeiro, David Martins de Matos
2021	—	`conf`	"How Was the Match?": Semantic Similarity between Electronic Media Commentary and Work Domain Analysis Key Phrases. icSPORTS Gustavo Silva, Ricardo Ribeiro, Rui J. Lopes
2021	J	`jnl`	Assessing kinetic meaning of music and dance via deep cross-modal retrieval. Neural Comput. Appl. Francisco Afonso Raposo, David Martins de Matos, Ricardo Ribeiro
2021	—	`conf`	From Implicit Preferences to Ratings: Video Games Recommendation based on Collaborative Filtering. KDIR Rosária Bunga, Fernando Batista, Ricardo Ribeiro
2021	C	`conf`	Gun Model Classification Based on Fired Cartridge Case Head Images with Siamese Networks. ISDA Sérgio Valentim, Tiago Fonseca, João Ferreira, Tomás Brandão, Ricardo Ribeiro, Stefan Nae
2021	J	`jnl`	Profiling Software Developers with Process Mining and N-Gram Language Models. CoRR João Caldeira, Fernando Brito e Abreu, Jorge Cardoso, Ricardo Ribeiro, Cláudia M. L. Werner
2021	J	`jnl`	Prosociality in Cyberspace: Developing Emotion and Behavioral Regulation to Decrease Aggressive Communication. Cogn. Comput. Ana Margarida Veiga Simão, Paula Costa Ferreira, Nádia Salgado Pereira, Sofia Oliveira, Paula Paulino, Hugo Rosa, Ricardo Ribeiro, Luísa Coheur, João Paulo Carvalho, Isabel Trancoso
2021	—	`conf`	Semantic Search of Mobile Applications Using Word Embeddings. SLATE João Coelho, António Neto, Miguel Tavares, Carlos Coutinho, Ricardo Ribeiro, Fernando Batista
2021	—	`conf`	Sentiment Analysis of Portuguese Economic News. SLATE Cátia Tavares, Ricardo Ribeiro, Fernando Batista
2021	—	`conf`	Transformer-based Language Models for Semantic Search and Mobile Applications Retrieval. KDIR João Coelho, António Neto, Miguel Tavares, Carlos Coutinho, João Oliveira, Ricardo Ribeiro, Fernando Batista
2020	—	`conf`	Different Lexicon-Based Approaches to Emotion Identification in Portuguese Tweets (Short Paper). SLATE Soraia Filipe, Fernando Batista, Ricardo Ribeiro
2020	J	`jnl`	General-Purpose Communicative Function Recognition using a Hierarchical Network with Cascading Outputs and Maximum a Posteriori Path Estimation. CoRR Eugénio Ribeiro, Ricardo Ribeiro, David Martins de Matos
2020	B	`conf`	Mapping the Dialog Act Annotations of the LEGO Corpus into ISO 24617-2 Communicative Functions. LREC Eugénio Ribeiro, Ricardo Ribeiro, David Martins de Matos
2020	J	`jnl`	Semantic frame induction through the detection of communities of verbs and their arguments. Appl. Netw. Sci. Eugénio Ribeiro, Andreia Sofia Teixeira, Ricardo Ribeiro, David Martins de Matos
2020	—	`conf`	Towards the Identification of Fake News in Portuguese. SLATE João Rodrigues, Ricardo Ribeiro, Fernando Batista
2020	—	`conf`	Using Topic Information to Improve Non-exact Keyword-Based Search for Mobile Applications. IPMU (1) Eugénio Ribeiro, Ricardo Ribeiro, Fernando Batista, João Oliveira
2019	J	`jnl`	A Multilingual and Multidomain Study on Dialog Act Recognition Using Character-Level Tokenization. Inf. Eugénio Ribeiro, Ricardo Ribeiro, David Martins de Matos
2019	J	`jnl`	An information-theoretic approach to machine-oriented music summarization. Pattern Recognit. Lett. Francisco Afonso Raposo, David Martins de Matos, Ricardo Ribeiro
2019	J	`jnl`	Automatic cyberbullying detection: A systematic review. Comput. Hum. Behav. Hugo Rosa, Nádia Salgado Pereira, Ricardo Ribeiro, Paula Costa Ferreira, João Paulo Carvalho, Sofia Oliveira, Luísa Coheur, Paula Paulino, Ana Margarida Veiga Simão, Isabel Trancoso
2019	J	`jnl`	Deep Dialog Act Recognition using Multiple Token, Segment, and Context Information Representations. J. Artif. Intell. Res. Eugénio Ribeiro, Ricardo Ribeiro, David Martins de Matos
2019	J	`jnl`	Hierarchical Multi-Label Dialog Act Recognition on Spanish Data. CoRR Eugénio Ribeiro, Ricardo Ribeiro, David Martins de Matos
2019	—	`conf`	L2F/INESC-ID at SemEval-2019 Task 2: Unsupervised Lexical Semantic Frame Induction using Contextualized Word Representations. SemEval@NAACL-HLT Eugénio Ribeiro, Vânia Mendonça, Ricardo Ribeiro, David Martins de Matos, Alberto Sardinha, Ana Lúcia Santos, Luísa Coheur
2019	J	`jnl`	Learning Embodied Semantics via Music and Dance Semiotic Correlations. CoRR Francisco Afonso Raposo, David Martins de Matos, Ricardo Ribeiro
2019	J	`jnl`	Low-dimensional Embodied Semantics for Music and Language. CoRR Francisco Afonso Raposo, David Martins de Matos, Ricardo Ribeiro
2019	J	`jnl`	Reconhecimento de Actos de Diálogo Hierárquicos e Multi-Etiqueta em Dados em Espanhol. Linguamática Eugénio Ribeiro, Ricardo Ribeiro, David Martins de Matos
2019	—	`conf`	Semantic Frame Induction as a Community Detection Problem. COMPLEX NETWORKS (1) Eugénio Ribeiro, Andreia Sofia Teixeira, Ricardo Ribeiro, David Martins de Matos
2018	B	`conf`	A "Deeper" Look at Detecting Cyberbullying in Social Networks. IJCNN Hugo Rosa, David Martins de Matos, Ricardo Ribeiro, Luísa Coheur, João Paulo Carvalho
2018	Misc	`conf`	A Study on Dialog Act Recognition Using Character-Level Tokenization. AIMSA Eugénio Ribeiro, Ricardo Ribeiro, David Martins de Matos
2018	J	`jnl`	A Study on Dialog Act Recognition using Character-Level Tokenization. CoRR Eugénio Ribeiro, Ricardo Ribeiro, David Martins de Matos
2018	J	`jnl`	Deep Dialog Act Recognition using Multiple Token, Segment, and Context Information Representations. CoRR Eugénio Ribeiro, Ricardo Ribeiro, David Martins de Matos
2018	—	`conf`	Discovering Trends in Brand Interest through Topic Models. KDIR Diana Lopes-Teixeira, Fernando Batista, Ricardo Ribeiro
2018	—	`conf`	End-to-End Multi-Level Dialog Act Recognition. IberSPEECH Eugénio Ribeiro, Ricardo Ribeiro, David Martins de Matos
2018	J	`jnl`	Hotel online reviews: different languages, different opinions. J. Inf. Technol. Tour. Nuno Antonio, Ana de Almeida, Luís Nunes, Fernando Batista, Ricardo Ribeiro
2018	—	`conf`	Less is more in incident categorization (Short Paper). SLATE Sara Silva, Ricardo Ribeiro, Rúben Pereira
2018	Misc	`conf`	Neural Methods for Cross-Lingual Sentence Compression. AIMSA Frederico Rodrigues, Bruno Martins, Ricardo Ribeiro
2018	B	`conf`	Using Fuzzy Fingerprints for Cyberbullying Detection in Social Networks. FUZZ-IEEE Hugo Rosa, João Paulo Carvalho, Pável Calado, Bruno Martins, Ricardo Ribeiro, Luísa Coheur
2017	—	`conf`	A curiosity model for artificial agents. ECAL Eugénio Ribeiro, Ricardo Ribeiro, David Martins de Matos
2017	—	`conf`	Adapting Speech Recognition in Augmented Reality for Mobile Devices in Outdoor Environments. SLATE Rui Pascoal, Ricardo Ribeiro, Fernando Batista, Ana de Almeida
2017	J	`jnl`	Assessing User Expertise in Spoken Dialog System Interactions. CoRR Eugénio Ribeiro, Fernando Batista, Isabel Trancoso, José Lopes, Ricardo Ribeiro, David Martins de Matos
2017	J	`jnl`	Event-based summarization using a centrality-as-relevance model. Knowl. Inf. Syst. Luís Marujo, Ricardo Ribeiro, Anatole Gershman, David Martins de Matos, João Paulo Neto, Jaime G. Carbonell
2017	J	`jnl`	Stepwise API usage assistance using n-gram language models. J. Syst. Softw. André L. Santos, Gonçalo Prendi, Hugo S. Sousa, Ricardo Ribeiro
2017	J	`jnl`	Towards Deep Modeling of Music Semantics using EEG Regularizers. CoRR Francisco Raposo, David Martins de Matos, Ricardo Ribeiro, Suhua Tang, Yi Yu
2016	J	`jnl`	An Information-theoretic Approach to Machine-oriented Music Summarization. CoRR Francisco Raposo, David Martins de Matos, Ricardo Ribeiro
2016	—	`conf`	Assessing User Expertise in Spoken Dialog System Interactions. IberSPEECH Eugénio Ribeiro, Fernando Batista, Isabel Trancoso, José Lopes, Ricardo Ribeiro, David Martins de Matos
2016	—	`conf`	Automatic Detection of Hyperarticulated Speech. IberSPEECH Eugénio Ribeiro, Fernando Batista, Isabel Trancoso, Ricardo Ribeiro, David Martins de Matos
2016	J	`jnl`	Chatbots' Greetings to Human-Computer Communication. CoRR Maria João Pereira, Luísa Coheur, Pedro Fialho, Ricardo Ribeiro
2016	—	`ed.`	Computational Processing of the Portuguese Language - 12th International Conference, PROPOR 2016, Tomar, Portugal, July 13-15, 2016, Proceedings PROPOR João Ricardo Silva, Ricardo Ribeiro, Paulo Quaresma, André Adami, António Branco
2016	J	`jnl`	Exploring events and distributed representations of text in multi-document summarization. Knowl. Based Syst. Luís Marujo, Wang Ling, Ricardo Ribeiro, Anatole Gershman, Jaime G. Carbonell, David Martins de Matos, João Paulo Neto
2016	J	`jnl`	Fast and Extensible Online Multivariate Kernel Density Estimation. CoRR Jaime Ferreira, David Martins de Matos, Ricardo Ribeiro
2016	J	`jnl`	Mapping the Dialog Act Annotations of the LEGO Corpus into the Communicative Functions of ISO 24617-2. CoRR Eugénio Ribeiro, Ricardo Ribeiro, David Martins de Matos
2016	B	`conf`	SPA: Web-based Platform for easy Access to Speech Processing Modules. LREC Fernando Batista, Pedro Curto, Isabel Trancoso, Alberto Abad, Jaime Ferreira, Eugénio Ribeiro, Helena Moniz, David Martins de Matos, Ricardo Ribeiro
2016	J	`jnl`	Summarization of films and documentaries based on subtitles and scripts. Pattern Recognit. Lett. Marta Aparício, Paulo Figueiredo, Francisco Raposo, David Martins de Matos, Ricardo Ribeiro, Luís Marujo
2016	J	`jnl`	Using Generic Summarization to Improve Music Information Retrieval Tasks. IEEE ACM Trans. Audio Speech Lang. Process. Francisco Raposo, Ricardo Ribeiro, David Martins de Matos
2016	—	`conf`	eSPERTo's Paraphrastic Knowledge Applied to Question-Answering and Summarization. NooJ Cristina Mota, Anabela Barreiro, Francisco Raposo, Ricardo Ribeiro, Sérgio Curto, Luísa Coheur
2015	—	`conf`	Extending a Single-Document Summarizer to Multi-Document: a Hierarchical Approach. *SEM@NAACL-HLT Luís Marujo, Ricardo Ribeiro, David Martins de Matos, João Paulo Neto, Anatole Gershman, Jaime G. Carbonell
2015	J	`jnl`	Extending a Single-Document Summarizer to Multi-Document: a Hierarchical Approach. CoRR Luís Marujo, Ricardo Ribeiro, David Martins de Matos, João Paulo Neto, Anatole Gershman, Jaime G. Carbonell
2015	J	`jnl`	Generation of Multimedia Artifacts: An Extractive Summarization-based Approach. CoRR Paulo Figueiredo, Marta Aparício, David Martins de Matos, Ricardo Ribeiro
2015	J	`jnl`	On the Application of Generic Summarization Algorithms to Music. IEEE Signal Process. Lett. Francisco Raposo, Ricardo Ribeiro, David Martins de Matos
2015	J	`jnl`	Software Agents with Concerns of their Own. CoRR Luís Miguel Botelho, Luís Nunes, Ricardo Ribeiro, Rui J. Lopes
2015	J	`jnl`	Summarization of Films and Documentaries Based on Subtitles and Scripts. CoRR Marta Aparício, Paulo Figueiredo, Francisco Raposo, David Martins de Matos, Ricardo Ribeiro
2015	J	`jnl`	The Influence of Context on Dialogue Act Recognition. CoRR Eugénio Ribeiro, Ricardo Ribeiro, David Martins de Matos
2015	J	`jnl`	Towards Using Machine Translation Techniques to Induce Multilingual Lexica of Discourse Markers. CoRR António Luís Vilarinho dos Santos Lopes, David Martins de Matos, Vera Cabarrão, Ricardo Ribeiro, Helena Moniz, Isabel Trancoso, Ana Isabel Mata
2015	J	`jnl`	Using Generic Summarization to improve Music Information Retrieval Tasks. CoRR Francisco Raposo, Ricardo Ribeiro, David Martins de Matos
2014	J	`jnl`	Automatic Fado Music Classification. CoRR Pedro Girão Antunes, David Martins de Matos, Ricardo Ribeiro, Isabel Trancoso
2014	J	`jnl`	Centrality-as-Relevance: Support Sets and Similarity as Geometric Proximity. CoRR Ricardo Ribeiro, David Martins de Matos
2014	J	`jnl`	On the Application of Generic Summarization Algorithms to Music. CoRR Francisco Raposo, Ricardo Ribeiro, David Martins de Matos
2014	B	`conf`	OpenLogos Semantico-Syntactic Knowledge-Rich Bilingual Dictionaries. LREC Anabela Barreiro, Fernando Batista, Ricardo Ribeiro, Helena Moniz, Isabel Trancoso
2014	B	`conf`	Revising the annotation of a Broadcast News corpus: a linguistic approach. LREC Vera Cabarrão, Helena Moniz, Fernando Batista, Ricardo Ribeiro, Nuno J. Mamede, Hugo Meinedo, Isabel Trancoso, Ana Isabel Mata, David Martins de Matos
2013	—	`conf`	Book recommender prototype based on author's writing style. OAIR Paula Cristina Vaz, Ricardo Ribeiro, David Martins de Matos
2013	—	`ch.`	Improving Speech-to-Text Summarization by Using Additional Information Sources. Multi-source, Multilingual Information Extraction and Summarization Ricardo Ribeiro, David Martins de Matos
2013	J	`jnl`	Key Phrase Extraction of Lightly Filtered Broadcast News. CoRR Luís Marujo, Ricardo Ribeiro, David Martins de Matos, João Paulo Neto, Anatole Gershman, Jaime G. Carbonell
2013	A*	`conf`	Revisiting Centrality-as-Relevance: Support Sets and Similarity as Geometric Proximity: Extended abstract. IJCAI Ricardo Ribeiro, David Martins de Matos
2013	A*	`conf`	Self reinforcement for important passage retrieval. SIGIR Ricardo Ribeiro, Luís Marujo, David Martins de Matos, João Paulo Neto, Anatole Gershman, Jaime G. Carbonell
2013	J	`jnl`	Sentiment Analysis and Topic Classification based on Binary Maximum Entropy Classifiers. Proces. del Leng. Natural Fernando Batista, Ricardo Ribeiro
2013	—	`conf`	Understanding temporal dynamics of ratings in the book recommendation scenario. ISDOC Paula Cristina Vaz, Ricardo Ribeiro, David Martins de Matos
2013	—	`conf`	Understanding the Temporal Dynamics of Recommendations across Different Rating Scales. UMAP Workshops Paula Cristina Vaz, Ricardo Ribeiro, David Martins de Matos
2012	—	`conf`	Influence of Peak Selection Methods on Onset Detection. ISMIR Carlos Rosão, Ricardo Ribeiro, David Martins de Matos
2012	—	`conf`	Key Phrase Extraction of Lightly Filtered Broadcast News. TSD Luís Marujo, Ricardo Ribeiro, David Martins de Matos, João Paulo Neto, Anatole Gershman, Jaime G. Carbonell
2012	—	`conf`	LitRec vs. Movielens - A Comparative Study. KDIR Paula Cristina Vaz, Ricardo Ribeiro, David Martins de Matos
2012	—	`conf`	Testing Lexical Approaches in QA4MRE. CLEF (Online Working Notes/Labs/Workshop) Hugo Rodrigues, Luísa Coheur, Ana Cristina Mendes, Ricardo Ribeiro, David Martins de Matos
2011	J	`jnl`	Centrality-as-Relevance: Support Sets and Similarity as Geometric Proximity. J. Artif. Intell. Res. Ricardo Ribeiro, David Martins de Matos
2008	—	`conf`	QA@L2F, Second Steps at QA@CLEF. CLEF (Working Notes) Luísa Coheur, Ana Cristina Mendes, João Guimarães, Nuno J. Mamede, Ricardo Ribeiro
2008	—	`conf`	Question Interpretation in QA@L CLEF Luísa Coheur, Ana Cristina Mendes, João Guimarães, Nuno J. Mamede, Ricardo Ribeiro
2008	—	`conf`	Using prior knowledge to assess relevance in speech summarization. SLT Ricardo Ribeiro, David Martins de Matos
2007	—	`conf`	Extractive Summarization of Broadcast News: Comparing Strategies for European Portuguese. TSD Ricardo Ribeiro, David Martins de Matos
2007	—	`conf`	QA@L2F, First Steps at QA@CLEF. CLEF Ana Cristina Mendes, Luísa Coheur, Nuno J. Mamede, Ricardo Ribeiro, Fernando Batista, David Martins de Matos
2007	—	`conf`	QA@L2F@QA@CLEF. CLEF (Working Notes) Ana Cristina Mendes, Luísa Coheur, Nuno J. Mamede, Luis Romão, João Loureiro, Ricardo Ribeiro, Fernando Batista, David Martins de Matos
2006	Misc	`conf`	Cooking an Ontology. AIMSA Ricardo Ribeiro, Fernando Batista, Joana Paulo Pardal, Nuno J. Mamede, Helena Sofia Pinto
2003	—	`conf`	Using Morphossyntactic Information in TTS Systems: Comparing Stratgies for European Portuguese. PROPOR Ricardo Ribeiro, Luís C. Oliveira, Isabel Trancoso