Ramji Venkataramanan

120 papers A* 5A 2B 32Journal 78Unranked 3
YearRankTypeTitle / Venue / Authors
2026 J jnl
Error Propagation and Model Collapse in Diffusion Models: A Theoretical Study.
CoRR
Nail B. Khelifa, Richard E. Turner, Ramji Venkataramanan
2026 J jnl
Many-User Multiple Access With Random User Activity: Achievability Bounds and Efficient Schemes.
IEEE Trans. Inf. Theory
Xiaoqi Liu, Pablo Pascual Cobo, Ramji Venkataramanan
2026 J jnl
Optimal Estimation in Orthogonally Invariant Generalized Linear Models: Spectral Initialization and Approximate Message Passing.
CoRR
Yihan Zhang, Hong Chang Ji, Ramji Venkataramanan, Marco Mondelli
2025 J jnl
Inferring Change Points in High-Dimensional Regression via Approximate Message Passing.
J. Mach. Learn. Res.
Gabriel Arpino, Xiaoqi Liu, Julia Gontarek, Ramji Venkataramanan
2025 J jnl
Quantitative Group Testing and Pooled Data in the Linear Regime With Sublinear Tests.
IEEE Trans. Inf. Theory
Nelvin Tan, Pablo Pascual Cobo, Ramji Venkataramanan
2024 J jnl
Approximate Message Passing with Rigorous Guarantees for Pooled Data and Quantitative Group Testing.
SIAM J. Math. Data Sci.
Nelvin Tan, Pablo Pascual Cobo, Jonathan Scarlett, Ramji Venkataramanan
2024 J jnl
Bayes-Optimal Estimation in Generalized Linear Models via Spatial Coupling.
IEEE Trans. Inf. Theory
Pablo Pascual Cobo, Kuan Hsieh, Ramji Venkataramanan
2024 B conf
Coded Many-User Multiple Access via Approximate Message Passing.
ISIT
Xiaoqi Liu, Kuan Hsieh, Ramji Venkataramanan
2024 J jnl
Coded Many-User Multiple Access via Approximate Message Passing.
CoRR
Xiaoqi Liu, Kuan Hsieh, Ramji Venkataramanan
2024 A* conf
Inferring Change Points in High-Dimensional Linear Regression via Approximate Message Passing.
ICML
Gabriel Arpino, Xiaoqi Liu, Ramji Venkataramanan
2024 J jnl
Inferring Change Points in High-Dimensional Linear Regression via Approximate Message Passing.
CoRR
Gabriel Arpino, Xiaoqi Liu, Ramji Venkataramanan
2024 J jnl
Many-User Multiple Access with Random User Activity: Achievability Bounds and Efficient Schemes.
CoRR
Xiaoqi Liu, Pablo Pascual Cobo, Ramji Venkataramanan
2024 B conf
Many-user multiple access with random user activity.
ISIT
Xiaoqi Liu, Pablo Pascual Cobo, Ramji Venkataramanan
2024 J jnl
Quantitative Group Testing and Pooled Data in the Linear Regime with Sublinear Tests.
CoRR
Nelvin Tan, Pablo Pascual Cobo, Ramji Venkataramanan
2024 A* conf
Spectral Estimators for Structured Generalized Linear Models via Approximate Message Passing (Extended Abstract).
COLT
Yihan Zhang, Hong Chang Ji, Ramji Venkataramanan, Marco Mondelli
2023 J jnl
Approximate Message Passing with Rigorous Guarantees for Pooled Data and Quantitative Group Testing.
CoRR
Nelvin Tan, Jonathan Scarlett, Ramji Venkataramanan
2023 B conf
Bayes-Optimal Estimation in Generalized Linear Models via Spatial Coupling.
ISIT
Pablo Pascual Cobo, Kuan Hsieh, Ramji Venkataramanan
2023 J jnl
Bayes-Optimal Estimation in Generalized Linear Models via Spatial Coupling.
CoRR
Pablo Pascual Cobo, Kuan Hsieh, Ramji Venkataramanan
2023 A conf
Mixed Linear Regression via Approximate Message Passing.
AISTATS
Nelvin Tan, Ramji Venkataramanan
2023 J jnl
Mixed Regression via Approximate Message Passing.
CoRR
Nelvin Tan, Ramji Venkataramanan
2023 J jnl
Mixed Regression via Approximate Message Passing.
J. Mach. Learn. Res.
Nelvin Tan, Ramji Venkataramanan
2023 J jnl
Sketching Sparse Low-Rank Matrices With Near-Optimal Sample- and Time-Complexity Using Message Passing.
IEEE Trans. Inf. Theory
Xiaoqi Liu, Ramji Venkataramanan
2023 J jnl
Spectral Estimators for Structured Generalized Linear Models via Approximate Message Passing.
CoRR
Yihan Zhang, Hong Chang Ji, Ramji Venkataramanan, Marco Mondelli
2023 A* conf
Statistical-Computational Tradeoffs in Mixed Sparse Linear Regression.
COLT
Gabriel Arpino, Ramji Venkataramanan
2023 J jnl
Statistical-Computational Tradeoffs in Mixed Sparse Linear Regression.
CoRR
Gabriel Arpino, Ramji Venkataramanan
2022 J jnl
A Unifying Tutorial on Approximate Message Passing.
Found. Trends Mach. Learn.
Oliver Y. Feng, Ramji Venkataramanan, Cynthia Rush, Richard J. Samworth
2022 A* conf
Estimation in Rotationally Invariant Generalized Linear Models via Approximate Message Passing.
ICML
Ramji Venkataramanan, Kevin Kögler, Marco Mondelli
2022 J jnl
Near-Optimal Coding for Many-User Multiple Access Channels.
IEEE J. Sel. Areas Inf. Theory
Kuan Hsieh, Cynthia Rush, Ramji Venkataramanan
2022 J jnl
Optimal Combination of Linear and Spectral Estimators for Generalized Linear Models.
Found. Comput. Math.
Marco Mondelli, Christos Thrampoulidis, Ramji Venkataramanan
2022 J jnl
Precise Asymptotics for Spectral Methods in Mixed Generalized Linear Models.
CoRR
Yihan Zhang, Marco Mondelli, Ramji Venkataramanan
2022 B conf
Sketching sparse low-rank matrices with near-optimal sample- and time-complexity.
ISIT
Xiaoqi Liu, Ramji Venkataramanan
2022 J jnl
Sketching sparse low-rank matrices with near-optimal sample- and time-complexity.
CoRR
Xiaoqi Liu, Ramji Venkataramanan
2021 J jnl
A unifying tutorial on Approximate Message Passing.
CoRR
Oliver Y. Feng, Ramji Venkataramanan, Cynthia Rush, Richard J. Samworth
2021 A conf
Approximate Message Passing with Spectral Initialization for Generalized Linear Models.
AISTATS
Marco Mondelli, Ramji Venkataramanan
2021 J jnl
Capacity-Achieving Spatially Coupled Sparse Superposition Codes With AMP Decoding.
IEEE Trans. Inf. Theory
Cynthia Rush, Kuan Hsieh, Ramji Venkataramanan
2021 J jnl
Estimation in Rotationally Invariant Generalized Linear Models via Approximate Message Passing.
CoRR
Ramji Venkataramanan, Kevin Kögler, Marco Mondelli
2021 J jnl
Modulated Sparse Superposition Codes for the Complex AWGN Channel.
IEEE Trans. Inf. Theory
Kuan Hsieh, Ramji Venkataramanan
2021 J jnl
Multilayer Codes for Synchronization From Deletions and Insertions.
IEEE Trans. Inf. Theory
Mahed Abroshan, Ramji Venkataramanan, Albert Guillén i Fàbregas
2021 B conf
Near-Optimal Coding for Massive Multiple Access.
ISIT
Kuan Hsieh, Cynthia Rush, Ramji Venkataramanan
2021 J jnl
Near-Optimal Coding for Massive Multiple Access.
CoRR
Kuan Hsieh, Cynthia Rush, Ramji Venkataramanan
2021 A* conf
PCA Initialization for Approximate Message Passing in Rotationally Invariant Models.
NeurIPS
Marco Mondelli, Ramji Venkataramanan
2021 J jnl
PCA Initialization for Approximate Message Passing in Rotationally Invariant Models.
CoRR
Marco Mondelli, Ramji Venkataramanan
2020 J jnl
Approximate Message Passing with Spectral Initialization for Generalized Linear Models.
CoRR
Marco Mondelli, Ramji Venkataramanan
2020 J jnl
Capacity-achieving Spatially Coupled Sparse Superposition Codes with AMP Decoding.
CoRR
Cynthia Rush, Kuan Hsieh, Ramji Venkataramanan
2020 B conf
Modulated Sparse Regression Codes.
ISIT
Kuan Hsieh, Ramji Venkataramanan
2020 J jnl
Modulated Sparse Superposition Codes for the Complex AWGN Channel.
CoRR
Kuan Hsieh, Ramji Venkataramanan
2020 J jnl
Optimal Combination of Linear and Spectral Estimators for Generalized Linear Models.
CoRR
Marco Mondelli, Christos Thrampoulidis, Ramji Venkataramanan
2019 B conf
Boolean Functions with Biased Inputs: Approximation and Noise Sensitivity.
ISIT
Mohsen Heidari, S. Sandeep Pradhan, Ramji Venkataramanan
2019 J jnl
Boolean Functions with Biased Inputs: Approximation and Noise Sensitivity.
CoRR
Mohsen Heidari, S. Sandeep Pradhan, Ramji Venkataramanan
2019 B conf
Coding for Deletion Channels with Multiple Traces.
ISIT
Mahed Abroshan, Ramji Venkataramanan, Lara Dolecek, Albert Guillén i Fàbregas
2019 J jnl
Coding for Deletion Channels with Multiple Traces.
CoRR
Mahed Abroshan, Ramji Venkataramanan, Lara Dolecek, Albert Guillén i Fàbregas
2019 J jnl
Sparse Regression Codes.
CoRR
Ramji Venkataramanan, Sekhar Tatikonda, Andrew R. Barron
2019 J jnl
Sparse Regression Codes.
Found. Trends Commun. Inf. Theory
Ramji Venkataramanan, Sekhar Tatikonda, Andrew R. Barron
2019 B conf
Spatially Coupled Sparse Regression Codes with Sliding Window AMP Decoding.
ITW
Cynthia Rush, Kuan Hsieh, Ramji Venkataramanan
2019 J jnl
The Error Probability of Sparse Superposition Codes With Approximate Message Passing Decoding.
IEEE Trans. Inf. Theory
Cynthia Rush, Ramji Venkataramanan
2018 B conf
Capacity-achieving sparse regression codes via spatial coupling.
ITW
Cynthia Rush, Kuan Hsieh, Ramji Venkataramanan
2018 J jnl
Cluster-Seeking James-Stein Estimators.
IEEE Trans. Inf. Theory
K. Pavan Srinath, Ramji Venkataramanan
2018 J jnl
Coding for Segmented Edit Channels.
IEEE Trans. Inf. Theory
Mahed Abroshan, Ramji Venkataramanan, Albert Guillen i Fabregas
2018 B conf
Efficient Systematic Encoding of Non-binary VT Codes.
ISIT
Mahed Abroshan, Ramji Venkataramanan, Albert Guillén i Fàbregas
2018 B conf
Empirical Bayes Estimators for Sparse Sequences.
ISIT
K. Pavan Srinath, Ramji Venkataramanan
2018 J jnl
Finite Sample Analysis of Approximate Message Passing Algorithms.
IEEE Trans. Inf. Theory
Cynthia Rush, Ramji Venkataramanan
2018 B conf
Spatially Coupled Sparse Regression Codes: Design and State Evolution Analysis.
ISIT
Kuan Hsieh, Cynthia Rush, Ramji Venkataramanan
2018 J jnl
Spatially Coupled Sparse Regression Codes: Design and State Evolution Analysis.
CoRR
Kuan Hsieh, Cynthia Rush, Ramji Venkataramanan
2018 J jnl
Techniques for Improving the Finite Length Performance of Sparse Superposition Codes.
IEEE Trans. Commun.
Adam Greig, Ramji Venkataramanan
2017 J jnl
Capacity-Achieving Sparse Superposition Codes via Approximate Message Passing Decoding.
IEEE Trans. Inf. Theory
Cynthia Rush, Adam Greig, Ramji Venkataramanan
2017 J jnl
Codes for Channels With Segmented Edits.
CoRR
Mahed Abroshan, Ramji Venkataramanan, Albert Guillen i Fabregas
2017 B conf
Codes for channels with segmented edits.
ISIT
Mahed Abroshan, Ramji Venkataramanan, Albert Guillen i Fabregas
2017 J jnl
Efficient Systematic Encoding of Non-binary VT Codes.
CoRR
Mahed Abroshan, Ramji Venkataramanan, Albert Guillen i Fabregas
2017 J jnl
Empirical Bayes Estimators for High-Dimensional Sparse Vectors.
CoRR
Koteshwar Pavan Srinath, Ramji Venkataramanan
2017 J jnl
Multilayer Codes for Synchronization from Deletions.
CoRR
Mahed Abroshan, Ramji Venkataramanan, Albert Guillen i Fabregas
2017 B conf
Multilayer codes for synchronization from deletions.
ITW
Mahed Abroshan, Ramji Venkataramanan, Albert Guillen i Fabregas
2017 J jnl
Optimizing the Finite Length Performance of Sparse Superposition Codes.
CoRR
Adam Greig, Ramji Venkataramanan
2017 J jnl
Strong converse bounds for high-dimensional estimation.
CoRR
Ramji Venkataramanan, Oliver Johnson
2017 J jnl
The Error Probability of Sparse Superposition Codes with Approximate Message Passing Decoding.
CoRR
Cynthia Rush, Ramji Venkataramanan
2017 J jnl
The Rate-Distortion Function and Excess-Distortion Exponent of Sparse Regression Codes With Optimal Encoding.
IEEE Trans. Inf. Theory
Ramji Venkataramanan, Sekhar Tatikonda
2017 B conf
The error exponent of sparse regression codes with AMP decoding.
ISIT
Cynthia Rush, Ramji Venkataramanan
2016 J jnl
Cluster-Seeking James-Stein Estimators.
CoRR
K. Pavan Srinath, Ramji Venkataramanan
2016 B conf
Cluster-seeking shrinkage estimators.
ISIT
K. Pavan Srinath, Ramji Venkataramanan
2016 J jnl
Finite Sample Analysis of Approximate Message Passing.
CoRR
Cynthia Rush, Ramji Venkataramanan
2016 B conf
Finite-sample analysis of Approximate Message Passing.
ISIT
Cynthia Rush, Ramji Venkataramanan
2015 B conf
Capacity-achieving Sparse Regression Codes via approximate message passing decoding.
ISIT
Cynthia Rush, Adam Greig, Ramji Venkataramanan
2015 J jnl
Capacity-achieving Sparse Superposition Codes via Approximate Message Passing Decoding.
CoRR
Cynthia Rush, Adam Greig, Ramji Venkataramanan
2015 J jnl
Low-Complexity Interactive Algorithms for Synchronization From Deletions, Insertions, and Substitutions.
IEEE Trans. Inf. Theory
Ramji Venkataramanan, Vasuki Narasimha Swamy, Kannan Ramchandran
2014 J jnl
Lossy Compression via Sparse Linear Regression: Computationally Efficient Encoding and Decoding.
IEEE Trans. Inf. Theory
Ramji Venkataramanan, Tuhin Sarkar, Sekhar Tatikonda
2014 J jnl
Lossy Compression via Sparse Linear Regression: Performance Under Minimum-Distance Encoding.
IEEE Trans. Inf. Theory
Ramji Venkataramanan, Antony Joseph, Sekhar Tatikonda
2014 J jnl
Rewritable Storage Channels with Hidden State.
IEEE J. Sel. Areas Commun.
Ramji Venkataramanan, Sekhar Tatikonda, Luis Lastras-Monta, Michele Franceschini
2014 J jnl
The Gaussian Rate-Distortion Function of Sparse Regression Codes with Optimal Encoding.
CoRR
Ramji Venkataramanan, Sekhar Tatikonda
2014 B conf
The Gaussian rate-distortion function of sparse regression codes with optimal encoding.
ISIT
Ramji Venkataramanan, Sekhar Tatikonda
2013 J jnl
Achievable Rates for Channels With Deletions and Insertions.
IEEE Trans. Inf. Theory
Ramji Venkataramanan, Sekhar Tatikonda, Kannan Ramchandran
2013 J jnl
An Achievable Rate Region for the Broadcast Channel With Feedback.
IEEE Trans. Inf. Theory
Ramji Venkataramanan, S. Sandeep Pradhan
2013 J jnl
Efficient Interactive Algorithms for File Synchronization under General Edits.
CoRR
Ramji Venkataramanan, Vasuki Narasimha Swamy, Kannan Ramchandran
2013 — conf
Efficient interactive algorithms for file synchronization under general edits.
Allerton
Ramji Venkataramanan, Vasuki Narasimha Swamy, Kannan Ramchandran
2013 B conf
Improved capacity lower bounds for channels with deletions and insertions.
ITW
Ramji Venkataramanan, Sekhar Tatikonda
2013 B conf
Lossy compression via sparse linear regression: Computationally efficient encoding and decoding.
ISIT
Ramji Venkataramanan, Tuhin Sarkar, Sekhar Tatikonda
2013 B conf
Sparse Regression codes: Recent results and future directions.
ITW
Ramji Venkataramanan, Sekhar Tatikonda
2012 J jnl
Coding strategies for the uniform noise rewritable channel with hidden state
CoRR
Ramji Venkataramanan, Sekhar Tatikonda, Luis A. Lastras, Michele Franceschini
2012 B conf
Coding strategies for the uniform noise rewritable channel with hidden state.
ISIT
Ramji Venkataramanan, Sekhar Tatikonda, Luis Alfonso Lastras-Montaño, Michele Franceschini
2012 J jnl
Gaussian Rate-Distortion via Sparse Regression over Compact Dictionaries
CoRR
Ramji Venkataramanan, Antony Joseph, Sekhar Tatikonda
2012 B conf
Gaussian rate-distortion via sparse linear regression over compact dictionaries.
ISIT
Ramji Venkataramanan, Antony Joseph, Sekhar Tatikonda
2012 J jnl
Lossy Compression via Sparse Linear Regression: Computationally Efficient Encoding and Decoding
CoRR
Ramji Venkataramanan, Tuhin Sarkar, Sekhar Tatikonda
2012 J jnl
Sparse Regression Codes for Multi-terminal Source and Channel Coding
CoRR
Ramji Venkataramanan, Sekhar Tatikonda
2012 — conf
Sparse regression codes for multi-terminal source and channel coding.
Allerton Conference
Ramji Venkataramanan, Sekhar Tatikonda
2011 J jnl
A New Achievable Rate Region for the Multiple-Access Channel With Noiseless Feedback.
IEEE Trans. Inf. Theory
Ramji Venkataramanan, S. Sandeep Pradhan
2011 J jnl
Achievable Rates for Channels with Deletions and Insertions
CoRR
Ramji Venkataramanan, Sekhar Tatikonda, Kannan Ramchandran
2011 J jnl
Achievable Rates for Multiple Descriptions With Feed-Forward.
IEEE Trans. Inf. Theory
Ramji Venkataramanan, S. Sandeep Pradhan
2011 B conf
Achievable rates for channels with deletions and insertions.
ISIT
Ramji Venkataramanan, Sekhar Tatikonda, Kannan Ramchandran
2011 J jnl
An Achievable Rate Region for the Broadcast Channel with Feedback
CoRR
Ramji Venkataramanan, S. Sandeep Pradhan
2010 B conf
Achievable rates for the broadcast channel with feedback.
ISIT
Ramji Venkataramanan, S. Sandeep Pradhan
2010 — conf
Interactive low-complexity codes for synchronization from deletions and insertions.
Allerton
Ramji Venkataramanan, Hao Zhang, Kannan Ramchandran
2010 J jnl
On Computing the Feedback Capacity of Channels and the Feed-Forward Rate-Distortion Function of Sources.
IEEE Trans. Commun.
Ramji Venkataramanan, S. Sandeep Pradhan
2010 J jnl
Typicality Graphs:Large Deviation Analysis
CoRR
Ali Nazari, Ramji Venkataramanan, Dinesh Krithivasan, S. Sandeep Pradhan, Achilleas Anastasopoulos
2010 B conf
Typicality graphs and their properties.
ISIT
Ali Nazari, Dinesh Krithivasan, S. Sandeep Pradhan, Achilleas Anastasopoulos, Ramji Venkataramanan
2009 J jnl
A New Achievable Rate Region for the Discrete Memoryless Multiple-Access Channel with Feedback
CoRR
Ramji Venkataramanan, S. Sandeep Pradhan
2009 B conf
A new achievable rate region for the discrete memoryless multiple-access channel with feedback.
ISIT
Ramji Venkataramanan, S. Sandeep Pradhan
2008 B conf
Multiple descriptions with feed-forward: A single-letter achievable rate region.
ISIT
Ramji Venkataramanan, S. Sandeep Pradhan
2007 J jnl
On Evaluating the Rate-Distortion Function of Sources with Feed-Forward and the Capacity of Channels with Feedback
CoRR
Ramji Venkataramanan, S. Sandeep Pradhan
2007 B conf
On Evaluating the Rate-Distortion Function of Sources with Feed-Forward and the Capacity of Channels with Feedback.
ISIT
Ramji Venkataramanan, S. Sandeep Pradhan
2007 J jnl
Source Coding With Feed-Forward: Rate-Distortion Theorems and Error Exponents for a General Source.
IEEE Trans. Inf. Theory
Ramji Venkataramanan, S. Sandeep Pradhan
2006 J jnl
Estimation of frequency offset using warped discrete-Fourier transform.
Signal Process.
Ramji Venkataramanan, K. M. M. Prabhu
2004 B conf
Source coding with feed-forward.
ITW
Ramji Venkataramanan, S. Sandeep Pradhan