Welcome to the webpage of the Adaptive Signal Processing and Information Theory Research Group, directed by Prof. John MacLaren Walsh of the Department of Electrical and Computer Engineering, Drexel University.
Some of the broad areas in which we conduct research include:
- Information theory and coding: We determine the bounds for the region of entropic vectors using tools from matroid theory, group theory, and information geometry.
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Rate Region for Network Coding: We study performance limits for network coding in the form of rate regions, with additional applications in the design of efficient streaming protocols and distributed storage systems.
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Interactive and Distributed Function Computation: We investigate fundamental limits and practical coding strategies for distributed interactive function computation.
- Machine Learning Based Recommender Systems for Patent Analysis: Applying principles from machine learning, we develop recommender systems that interact with human users to improve the quality of several steps in the processing of patents.
News
11/11/2020
Alexander Erick Trofimoff finished his Ph.D. Thesis Proposal.
Aug. 2019
Dr. Walsh and Alexander Erick Trofimoff's paper "On Designing Probabilistic Supports to Map the Entropy Region" was published in 2019 IEEE Information Theory Workshop.
Jul. 2019
Yirui Liu and Dr. Walsh's paper "On the Complexity of Computing the Shannon Outer Bound to a Network Coding Capacity Region" was published in 2019 IEEE International Symposium on Information Theory
05/09/2019
Yirui Liu won the Drexel's University-wide Teaching Assistant Excellence Award of the academic year 2018-2019.
02/01/2019
Dr. Walsh presented “Computer Aided Patent Processing: Natural Language Processing, Machine Learning, and Information Retrieval,” at the United States Patent and Trademark Office’s “Birds of a Feather” Session on Artificial Intelligence and Related Technologies to Advance Patent Searching.
06/11/2018
Yirui Liu started his 3-month internship in FutureWei Technologies, Inc. 400 Crossing Blvd, Bridgewater Township, NJ as a research scientist working on 5G RAN.
05/18/2018
Dr. Walsh presented "A Computationally Informed Hierarchical Theory of Network Coding Rate Regions" at the ECE Dept. of the University of Toronto.
05/14/2018
Solmaz Torabi defended her Ph.D. Dissertation.
05/07/2018
Dr. Walsh presented "A Computationally Informed Hierarchical Theory of Network Coding Rate Regions" at the Institute of Network Coding, Chinese University of Hong Kong. (slides) , (video) .
04/26/2018
Dr. Walsh presented "A Computationally Informed Hierarchical Theory of Network Coding Rate Regions" in Network Coding & Reliable Communications Group, Research Laboratory of Electronics at Massachusetts Institute of Technology.
12/7/2017
Mengke Hu defended her Ph.D dissertation.
11/17/2017
Solmaz Torabi finished her Ph.D. Thesis Proposal.
Nov, 2017
Congduan Li, Dr. Weber, and Dr. Walsh's paper "On Multi-source Networks: Enumeration, Rate Region Computation, and Hierarchy" appeared on IEEE Trans. Inform. Theory, vol. 63, no. 11, pp. 7283–7303, Nov. 2017 (paper) .
07/11/2017
Congratulations to Yirui Liu for passing his Ph.D. candidacy exam on Network Coding Rate Regions.
04/28/2017
Jie Ren, Solmaz Torabi and Dr. Walsh submitted "A Framework for Rate Efficient Control of Distributed Discrete Systems" to IEEE Transactions on Automatic Control (arxiv) . Rejected. Resubmission encouraged
11/29/2016
Dr. Walsh presented "Interactive Recommender Systems for Patent Processing" at United States Patent and Trademark Office Program .
10/28/2016
Dr. Walsh presented "A Computationally Enabled Theory of Network Coding" in the Rocky Mountain Algebraic Combinatorics seminar series at Colorado State University Program , Slides.
09/28/2016
Solmaz Torabi presented her work "Distributed Lossy Interactive Function Computation" at the 54th Annual Allerton Conference on Communication, Control and Computing, Urbana, IL, USA. Program, Paper, slides
09/12/2016
Dr. Walsh presented "Symmetries in the Entropy Space" at the 2016 Information Theory Workshop (ITW 2016) Program ,Paper, Slides.
08/10/2016
Jayant Apte defended his Ph.D dissertation entitled "Algorithms for computing limits on information flow and storage in networks". slides. We thank the external committee members Dr. Anton Betten and Dr. Chao Tian for being part of the defense committee.
07/22/2016
Jayant Apte submitted his journal draft "Explicit Polyhedral Bounds on Network Coding Rate Regions via Entropy Function Region: Algorithms, Symmetry, and Computation" to the IEEE Transactions on Information Theory (arxiv), which contains the theoretical and algorithmic description of our software Information Theoretic Converse Prover (ITCP).
07/12/2016
Dr. Walsh presented "Practical Interactive Scheme for Extremum Computation in Distributed Networks" at the IEEE International Symposium on Information Theory (ISIT2016), Barcelona, Spain Program, Paper, slides, slides
06/23/2016
Jie Ren defended his Ph.D dissertation entitled "Control Overhead Optimization in Wireless Resource Allocation Problems". slides.
05/15/2016
Jayant Apte submitted his journal draft "Constrained Linear Representability of Polymatroids and Algorithms for Computing Achievability Proofs in Network Coding" to the IEEE Transactions on Information Theory (arxiv), which contains the theoretical and algorithmic description of our software Information Theoretic Achievability Prover (ITAP).
05/05/2016
Mengke Hu and David Cinciruk submitted their journal draft "Improving Automated Patent Claim Parsing: Dataset, System, and Experiments" to Computational Linguistics. arxiv
04/06/2016
Yunshu Liu defended his Ph.D dissertation entitled "Extremal Entropy: Information Geometry, Numerical Entropy Mapping, and Machine Learning Application of Associated Conditional Independences". slides.
04/01/2016
Jie Ren finished his Ph.D. Thesis Proposal on "Control Overheads Optimization in Wireless Resource Allocation Problems".
03/30/2016
Mengke Hu finished her Ph.D. Thesis Proposal on "Computer Aided Patent Processing: Natural Language Processing, Machine Learning, and Information Retrieval".
02/25/2016
Dr. Walsh gave a seminar on Network Coding in the Electrical Engineering and Computer Science Department at MIT. slides.
02/18/2016
Dr. Walsh presented "Distributed Extremization : Fundamental Limits and Practical Schemes" at the Nexus of Information and Computation Theories at Henri Poincaré institute in Paris, France. Program, video.
02/17/2016
Dr. Walsh presented "Rate Regions for Network Coding: Computation, Symmetry, and Hierarchy" at the Nexus of Information and Computation Theories at Henri Poincaré institute in Paris, France. Program, video.
02/01/2016
Dr. Walsh presented "Network Coding: Computation, Heirarchy, and Symmetry" at the Information Theory and Applications Workshop (2016) at UC San Diego. Program, slides.
01/16/2016
Jie Ren, Bradford Boyle and Gwanmo Ku's journal paper "Overhead Performance Tradeoffs -- A Resource Allocation Perspective" was accepted at IEEE Transactions on Information Theory.
01/06/2016
Yunshu Liu finished his Ph.D. Thesis Proposal on "Mapping the Region of Entropic Vectors with Support Enumeration & Information Geometry".
12/8/2015
Yunshu Liu submitted his journal draft "Mapping the Region of Entropic Vectors with Support Enumeration & Information Geometry" to the IEEE Transactions on Information Theory. arxiv
11/10/2015
Solmaz Torabi presented "Computing and Communicating Functions over Sensor Networks" at our group meeting. slides.
11/03/2015
Qi Chen presented "An introduction to Secret Sharing" at our group meeting. slides.
09/30/2015
Yunshu Liu presented his work "Non-isomorphic Distribution Supports for Calculating Entropic Vectors" at the 53rd Annual Allerton Conference on Communication, Control and Computing, Urbana, IL, USA. Program, Paper, slides
07/21/2015
Congduan Li submitted his journal draft "On Multi-source Networks: Enumeration, Rate Region Computation, and Hierarchy" to the IEEE Transaction on Information Theory. arxiv
07/06/2015
Congduan's paper "Network Combination Operations Preserving the Sufficiency of Linear Network Codes" was accepted at the 2015 Information Theory Workshop (ITW 2015).
06/23/2015
Congduan's paper "Computer Aided Proofs for Rate Regions of Independent Distributed Source Coding Problems" was presented at the 2015 International Symposium on Network Coding (NetCod 2015), Sydney, Australia. Program, Paper, slides
06/23/2015
Jayant's paper "Exploiting Symmetry in Computing Polyhedral Bounds on Network Coding Rate Regions" was presented at the 2015 International Symposium on Network Coding (NetCod 2015), Sydney, Australia. Program, Paper, slides
06/15/2015
John MacLaren Walsh presented "Symmetry in Network Coding: Formalization, Graph-Theoretic Characterization, and Computation" at the IEEE International Symposium on Information Theory (ISIT2015), Hong Kong, China. Program, Paper, slides
05/29/2015
Congduan Li defended his PHD thesis "Multi-source Multi-sink Hyperedge Networks: Enumeration, Rate Region Computation, and Hierarchy". slides.
04/27/2015, 04/29/2015
David Cinciruk presented his and Mengke's experiments on using Amazon Mechanical Turk for Data Collection in Parts of Speech Tag Correction for Patent Claims at our group meeting. slides.
04/13/2015, 04/15/2015
Yunshu Liu presented "An Introduction to Sum-Product Networks" at our group meeting.
03/30/2015
Jayant's paper "Symmetry in Network Coding" was accepted at the 2015 IEEE International Symposium on Information Theory (ISIT 2015).
03/09/2015, 03/30/2015,04/01/2015
Solmaz Torabi presented "The Role of Feedback in Communications" at our group meeting. slides.
02/23/2015, 02/25/2015
David Cinciruk presented "Patent Summarization and Paraphrasing" at our group meeting. slides.
02/09/2015, 02/11/2015
Mengke Hu presented "Patent Maintenance Recommendation System" at our group meeting. slides.
01/14/2015, 01/21/2015
Jayant Apte presented McKay's algorithm for isomorph-free exhaustive generation (Based on the paper Isomorph-free exhaustive generation, Journal of Algorithms, 26 (1998) 306-324 by B. D. McKay) at our group meeting. slides.
01/13/2015
Congratulations to Solmaz Torabi for passing her Ph.D. candidacy exam on Source Coding and Function Computation. slides.
11/25/2014
Congduan Li visited the Institute of Network Coding at the Chinese University of Hong Kong from Nov 3, 2014 to Jan 2, 2015, and gave a seminar on Nov 25, 2014.Video .
11/17/2014, 11/19/2014
Jayant Apte presented "Solving Rota's Conjecture Part 1: Graph and Matroid WQO Theorems" at our group meeting. slides.
11/03/2014,11/05/2014,11/10/2014,11/12/2014
Jie Ren presented "An Introduction to Communication Complexity" at our group meeting. slides
10/20/2014, 10/22/2014
Mengke Hu and David Cinciruk presented their experiments on patent analysis at our group meeting.
10/20/2014, 10/22/2014
Yunshu Liu presented "Entropy Region and Convolution" (from a manuscript by František Matúš and Lászlo Csirmaz)at our group meeting. slides.
10/15/2014
Congduan Li finished his Ph.D. Thesis Proposal on "Multiterminal Networks: Rate Regions, Codes, Computations and Forbidden Minors". slides .
10/03/2014
Congduan Li presented "Network Embedding Operations Preserving the Insufficiency of Linear Network Codes" at the 52nd Annual Allerton Conference on Communication, Control and Computing, Urbana, IL, USA. Program, Paper, slides
09/29/2014, 10/01/2014
Jayant Apte presented "Partition Symmetrical Entropy Functions Part 1" (based on a paper by Qi Chen and Raymond W. Yeung) at our group meeting. slides.
09/22/2014,09/24/2014
Congduan Li presented "U2,4 - the only forbidden minor for binary matroids" at our group meeting. slides
08/04/2014, 08/06/2014
Mengke Hu and David Cinciruk presented their patent analysis experiment at our group meeting. slides.
07/28/2014,07/30/2014
Jie Ren presented an "Introduction to Quantization Design" at our group meeting. slides
07/21/2014, 07/23/2014
Solmaz Torabi presented an introduction to Mean Field Theory at our group meeting. slides.
07/01/2014
Jayant Apte presented "Algorithms for Computing Network Coding Rate Regions via Single Element Extensions of Matroids" at the IEEE International Symposium on Information Theory (ISIT2014), Honolulu, HI, USA. Program, Paper, slides
06/17/2014, 06/19/2014
Jayant Apte presented "Exploiting Symmetry in Linear Programming" at our group meeting. slides.
06/10/2014, 06/12/2014
Solmaz Torabi presents an overview of Free Energy Approximation at our group meeting. slides.
05/21/2014
Gwanmo Ku defended his PHD thesis on "Efficient Control Signaling for Resource Allocation". slides.
05/06/2014, 05/13/2014
Yunshu Liu presented "Dual Decomposition for Inference" (based on papers by D. Sontag, A. Globerson and T. Jaakkola) in our group meeting. slides.
04/29/2014, 05/01/2014
Mengke Hu and David Cinciruk presented an "Introduction to the Patent Field" at our group meeting. slides.
04/22/2014,04/24/2014
Jie Ren presented an introduction to Space Time Coding at our group meeting. slides
04/15/2014
Congduan Li presented "The simplest index coding problem requiring a non-Shannon inequality" at our group meeting. slides
03/19/2014
Jayant Apte presented "Exact Pepair Problems with Multiple Sources" at The 48th annual IEEE Conference on Information Sciences and Systems(CISS) at Princeton, NJ, USA. Program, Paper, slides
03/19/2014
Bradford D. Boyle presented "Distributed Scalar Quantizers for Subband Allocation" at The 48th annual IEEE Conference on Information Sciences and Systems(CISS) at Princeton, NJ, USA. Program, Paper, slides
03/19/2014
Jie Ren presented "Interactive Communication for Resource Allocation" at The 48th annual IEEE Conference on Information Sciences and Systems(CISS) at Princeton, NJ, USA. Program, Paper, slides
03/04/2014, 03/06/2014
Yunshu Liu presented an introduction to Independence Models with a focus on Gaussian distributional framework (based on papers by Petr Simecek and Radim Lnenicka) in our group meeting. slides.
02/25/2014, 02/27/2014
Jayant Apte presented "Polyhedral Description Conversion up to Symmetries" (from a thesis by Thomas Rehn) at our group meeting. slides.
02/18/2014, 02/20/2014
Congduan Li presented "An equivalence between network coding and index coding" (A paper by Effros, Rouayheb, Langberg) at our group meeting. slides
02/11/2014
Dr. Walsh presented "Calculating rate regions for network coding and distributed storage via polyhedral projection and representable matroid enumeration" at the Information Theory and Applications Workshop (2014) at UC San Diego. Program,slides.
12/16/2013
Gwanmo Ku submitted "Resource Allocation and Link Adaptation in LTE & LTE Advanced: A Tutorial" to the IEEE Communications Surveys and Tutorials on December 16, 2013.
11/26/2013
Jayant Apte presented "Entropic Inequalities and Marginal Problems" at our group meeting. slides.
10/29/2013, 11/21/2013
Alexander Erick Trofimoff presented an introduction to analytical approaches to enumerating binary matroids with focus on the Burnside's lemma in our group meeting.
10/17/2013, 10/22/2013
Yunshu Liu presented "Information Geometric view of Belief Propagation" at our group meeting. slides.
10/03/2013
Congduan Li presented "Matroid bounds on the Region of Entropic Vectors" at the 51st Annual Allerton Conference on Communication, Control and Computing at Urbana, IL, USA. Program, Paper, slides
09/13/2013
Dr. Walsh presented "Bounding the Entropic Region via Information Geometry" at the 2013 IEEE Information Theory Workshop at Seville, Spain. Program, Paper, slides
08/08/2013, 08/09/2013
Alexander Erick Trofimoff presented an introduction to Matroid representations by partitions at our group meeting.
07/16/2013, 07/30/2013, 08/01/2013
Yunshu Liu presented an "Graphical Models and Message Passing" at our group meeting. slides.
07/23/2013, 07/25/2013
Congduan Li presented an introduction to Matroid bounds on the Region of entropic vectors at our group meeting.
07/09/2013, 07/11/2013
Jayant Apte presented "Network Coding for Distributed Storage Systems" at our group meeting.slides
06/08/2013
Congduan Li presented "A new computational approach for determining rate regions and optimal codes for coded networks" at the 2013 IEEE International Symposium on Network Coding(NetCod 2013) at Calgary, Canada. Program, Paper,slides,Poster, Video.
05/30/2013
Bradford Boyle presented "Channel Dependent Adaptive Modulation and Coding without Channel State Information at the Transmitter" at the 38th IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2013) at Vancouver, Canada. Program, slides, Paper.
05/14/2013, 05/17/2013, 05/21/2013
Gwanmo Ku presented an introduction to Limited Feedback in Wireless Communication Systems at our group meeting.
04/26/2013,04/30/2013, 05/03/2013, 05/07/2013
Jie Ren presented an introduction to Variable-Rate Channel Capacity at our group meeting. slides
04/16/2013
Dr. Walsh presented "Entropic Vectors: Polyhedral Computation and Information Geometry" at the First Workshop on Entropy and Information Inequalities in Hong Kong. Program, slides, Video.
03/26/2013, 03/29/2013
Jayant Apte presented an "Polyhedral Description Conversion Up to Symmetries with a Focus on Group Theory" at our group meeting.slides
03/22/2013
Dan Venutolo presented an introduction to Non-Shannon Information Inequalities of Four Random Variables in group meeting.
03/13/2013, 03/15/2013
Yunshu Liu presented "Non-Shannon Information Inequalities of Four Random Variables" at our group meeting. slides.
03/08/2013
David Cinciruk presented "Nuisance Attribute Projection" at our group meeting.
03/06/2013
David Cinciruk presented "Support Vector Machines and Speaker Verification" at our group meeting. slides.
02/27/2013, 03/01/2013
Jie Ren presented "Incremental Coding over MIMO Channels" at our group meeting.
02/20/2013, 02/22/2013
Yunshu Liu presented "Conditional Independence Relations" at our group meeting. slides.
02/11/2013
Dr. Walsh presented "Entropic Vectors: Polyhedral Computation and Information Geometry" at the Information Theory and Applications Workshop at UC San Diego. slides.
02/06/2013, 02/08/2013
Mengke Hu presented "Joint Factor Analysis" at our group meeting. slides.
01/30/2013, 02/01/2013
Congduan Li presented "Inequalities for Shannon Entropy and Linear ranks" at our group meeting. slides.
01/25/2013
Gwanmo Ku presented "OFDMA Cross Layer Resource Control" at our group meeting. slides.
01/16/2013,01/18/2013, 01/23/2013
Jie Ren presented an introduction to Rateless Codes at our group meeting. slides.
01/11/2013
David Cinciruk presented an overview of Feature mapping at our group meeting. slides.
01/09/2013
Mengke Hu presents a comparison between JFA, FDIC and fNAP at our group meeting. slides.
12/19/2012
Dr. Walsh presented "Overhead Performance Tradeoffs in Distributed Wireless Networks" at the AFOSR Complex Networks Program Review at Washington, D.C. slides.
12/05/2012
Congduan Li gave a briefing of the senior design project that the group was advising at our group meeting.
11/30/2012
Gwanmo Ku presented "Overview of Gaussian MIMO BC" at our group meeting. slides.
11/14/2012,11/16/2012, 11/28/2012
Jie Ren presented "Coding for Computing" at our group meeting. slides.
10/17/2012, 10/19/2012, 10/24/2012, 11/09/2012
Gwanmo Ku presented an introduction to general broadcast channel and dirty paper coding at our group meeting. slides.
10/10/2012, 10/12/2012
Mengke Hu presented "Joint Factor Analysis for Speaker Verification" at our group meeting. slides.
10/03/2012, 10/05/2012
Jayant Apte presented an introduction to Polyhedral Computation at our group meeting. slides.
08/15/2012, 08/17/2012,08/22/2012,08/27/2012,08/29/2012
Jie Ren presented an introduction to Interactive Communication at our group meeting.slides.
08/2012
ASPITRG welcomes its newest member, Jie Ren.
08/03/2012, 08/08/2012,08/10/2012
Emmanuel Oyekanlu presented "A Review of Special Topics on Coding for Collaborative Estimation on Distributed Networks" at our group meeting.slides.
07/25/2012, 08/01/2012
Mengke Hu presented "Log Spectra Enhancement for Speaker Verification" at our group meeting. slides.
07/13/2012, 07/17/2012, 07/20/2012
David Cinciruk presented an introduction to Nuisance attribute projection (NAP) at our group meeting. slides.
06/29/2012, 07/11/2012
Jayant Apte presented an introduction to Lexicographic Reverse Search (LRS) at our group meeting. slides.
06/22/2012, 06/27/2012
Mengke Hu presented an introduction to Autotools at our group meeting. slides.
06/15/2012
Gwanmo Ku presented an overview of adaptive modulation and coding in LTE at our group meeting. slides.
06/2012
ASPITRG welcomes its newest member, Mengke Hu.
06/08/2012
Jayant Apte presented an introduction to CUDA at our group meeting. slides.
05/25/2012, 06/01/2012
Congduan Li presented an introduction to the construction of networks from matroids at our group meeting. slides.
05/11/2012
Congduan Li presented an introduction to the fundamental problems in networks at our group meeting. slides.
04/27/2012
Gwanmo Ku presented "Scheduling in LTE" at our group meeting. slides.
04/13/2012, 04/20/2012
Yunshu Liu presented "Manifold of probability distribution" at our group meeting. slides.
04/2012
ASPITRG welcomes its newest member, Jayant Apte.
4/2/2012:
ASPITRG has received a grant from the Air Force Office of Scientific Research to study the fundamental relationship between the amount of overhead control information and resource allocation performance in wireless networks. The research effort will be a collaboration between Leonard J. Cimini (PI - Univ. of Delaware), Javier Garcia-Frais (co-PI - Univ. of Delaware), John MacLaren Walsh (PI - Drexel University), and Steven Weber (co-PI - Drexel University).
03/01/2012
Sivagnanasundaram Ramanan's paper "Practical Codes for Collaborative Estimation" is scheduled to appear in the June or July issue of the IEEE Transactions on Signal Processing 2012.
02/24/2012
David Cinciruk presented an introduction to Speaker Recognition at our group meeting. slides.
02/10/2012, 02/17/2012
Yunshu Liu presented an introduction to Information Geometry at our group meeting. slides.
02/07/2012
Dr. Walsh presented "Characterizing the Region of Entropic Vectors via Information Geometry" at the Information Theory and Applications Workshop at UC San Diego.
01/20/2012, 01/27/2012
Yunshu Liu presented an overview of differential geometry at our group meeting.
11/18/2011,12/02/2011
Congduan Li presented "Matroid Theory with a Focus on Matroid Operations" at our group meeting. slides.
11/11/2011
Gwanmo Ku presented "Resource Allocation in LTE" at our group meeting slides.
11/4/2011
Gwanmo Ku presented an overview of the structure of the PHY in the LTE 4G standard at our group meeting. slides.
10/21/2011,10/28/2011
Congduan Li presented an introduction to matroid theory at our group meeting. slides.
9/20/2011
ASPITRG welcomes its newest member, Emmanuel Oyekanlu.
8/24/2011
ASPITRG welcomes its newest member, Yunshu Liu.
7/28/2011
Sivagnanasundaram Ramanan defended his Ph.D. Dissertation "Collaborative Estimation in Networks".
6/14/2011
Dr. Walsh and the ASPITRG have been awarded the CAREER award by the National Science Foundation for the project " Entropy Geometry in Variational Inference Signal Processing ".
6/12/2011
ASPITRG welcomes its newest member, Congduan Li.
6/10/2011
ASPITRG Undergraduate Researcher Linda McLaughlin bids farewell to ASPITRG and begins graduate research career at Cornell University.
6/08/2011
Ciira Maina defends his Ph.D. Dissertation " Approximate Bayesian Inference for Robust Speech Processing ".
6/01/2011
Dr. Walsh and Dr. Weber's paper " A Recursive Construction of the Set of Binary Entropy Vectors and Related Algorithmic Inner Bounds for the Entropy Region" has been accepted for publication in the IEEE Transactions on Information Theory.
5/27/2011
Sivagnanasundaram Ramanan submitted the manuscript " Practical Codes for Collaborative Estimation " to the IEEE Transactions on Signal Processing.
5/02/2011
Dr. Walsh, together with Dr. Weber, Dr. de Oliveira, Dr. Muriel Medard (MIT), and Dr. Atilla Eryilmaz (Ohio State Univ.), guest edited the May 2011 issue of the IEEE Journal on Selected Areas in Communications. The issue was about rate delay tradeoffs at the application and transport layers.
3/29/2011
Dr. Walsh and Dr. Weber submitted a revised version of the manuscript " A Recursive Construction of the Set of Binary Entropy Vectors and Related Algorithmic Inner Bounds for the Entropy Region " to the IEEE Transactions on Information Theory.
3/14/2011
Ciira wa Maina submitted the paper " Log Spectra Enhancement using Speaker Dependent Priors for Speaker Verification " to the IEEE Transactions on Audio, Speech, and Language Processing.
2/4/2011
Ciira wa Maina's paper "Compensating for Noise and Mismatch in Speaker Verification Systems Using Approximate Bayesian Inference" has been selected to appear at CISS 2011.
1/18/2011
Sivagnanasundaram Ramanan's paper "Practical Codes for Lossy Compression when Side Information May be Absent" and Ciira wa Maina's paper "Log Spectra Enhancement using Speaker Dependent Priors for Speaker Verification" have been selected to appear at IEEE ICASSP 2011.
1/03/2011
Dr. Walsh to speak about collaborative estimation algorithms at the Information Theory and Applications Workshop at UC San Diego.
12/06/2010
Gwanmo Ku's paper titled " Power amplifier nonlinearity effects on OFDM subcarrier transmit beamforming" has been accepted to the IEEE Wireless Communications and Networking Conference (WCNC), 2011.
