Refereed Papers | Conference Abstracts | Book Chapters | Other Publications

Generative causal explanations of black-box classifiers . June 2020. Submitted | |

Variational Autoencoder with Learned Latent Structure . June 2020. Submitted | |

State-space optimal feedback control of optogenetically driven neural activity . June 2020. Under review. | |

An unbiased efficient sleep-wake detection algorithm for a population with sleep disorders: Change Point Decoder . Sleep, February 2020. | |

Active ordinal tuplewise querying for similarity learning . In AAAI Conference on Artificial Intelligence (AAAI), February 2020. Selected for oral presentation. (Acceptance rate 20.6%). | |

Representing Closed Transformation Paths in Encoded Network Latent Space . In AAAI Conference on Artificial Intelligence (AAAI), February 2020. Selected for spotlight presentation. (Acceptance rate 20.6%). | |

Infrared Search and Track with Unbalanced Optimal Transport Dynamics Regularization . 2020. Under review. | |

Efficient Tracking of Sparse Signals via an Earth Mover's Distance Dynamics Regularizer . Signal Processing Letters, 2020. In press. | |

A 17.8 MS/s Compressed Sensing Radar Accelerator Using a Spiking Neural Network . 2020. Under review. | |

Hierarchical Optimal Transport for Multimodal Distribution Alignment . In Neural Information Processing Systems (NeurIPS), December 2019. (Acceptance rate 21%) | |

Sparse Bayesian Learning with Dynamic Filtering for Inference of Time-Varying Sparse Signals . IEEE Transactions on Signal Processing, 68(1), pp. 388–403, December 2019. | |

Sub-second Dynamics of Theta-Gamma Coupling in Hippocampal CA1 . eLife, vol. 8, pp. e44320, July 2019. | |

Sparse Coding Using the Locally Competitive Algorithm on the TrueNorth Neurosynaptic System . Frontiers in Neuroscience, vol. 13, pp. 754, July 2019. | |

Active embedding search via noisy paired comparisons . In International Conference on Machine Learning (ICML), June 2019. (Acceptance rate 23%) | |

PatcherBot: a single-cell electrophysiology robot for adherent cells and brain slices . Journal of Neural Engineering, 16(4), pp. 046003, May 2019. | |

Parallel Unbalanced Optimal Transport Regularization for Large Scale Imaging Problems . 2019. Under review. | |

Unsupervised learning of manifold models for neural coding of physical transformations in the ventral visual pathway . In Conference on Cognitive Computational Neuroscience, September 2018. | |

Short-term Sequence Memory: Compressive effects of Recurrent Network Dynamics . In Conference on Cognitive Computational Neuroscience, September 2018. | |

Matched Filtering for Heart Rate Estimation on Compressive Sensing ECG Measurements . IEEE Transactions on Biomedical Engineering, 65(6), pp. 1349–1358, June 2018. | |

Controlling high-complexity robotic swarms with low-complexity EEG brain-computer interfaces . In International BCI Meeting, May 2018. | |

Cell Membrane Tracking in Living Brain Tissue using Differential Interference Contrast Microscopy . IEEE Transactions on Image Processing, pp. 1847–1861, April 2018. | |

Stabilizing Embedology: Geometry-Preserving Delay-Coordinate Maps . Physical Review E, 97(2), pp. 022222, February 2018. | |

Design strategies for dynamic closed-loop optogenetic neurocontrol in vivo . Journal of Neural Engineering, 15(2), pp. 026011, January 2018. | |

Rank Learning by Ordinal Gerrymandering . In Proceedings of the IEEE International Conference On Machine Learning And Applications (ICMLA), December 2017. | |

Neuromorphic computation: Sparse codes from memristor grids . Nature Nanotechnology, 12(8), pp. 722–723, August 2017. | |

Distributed Sequence Memory of Multidimensional Inputs in Recurrent Networks . Journal of Machine Learning Research, 18(7), pp. 1-37, 2017. | |

Dynamic Filtering of Time-Varying Sparse Signals via L1 Minimization . IEEE Transactions on Signal Processing, 64(21), pp. 5644–5656, November 2016. | |

Outcome measures based on classification performance fail to predict the intelligibility of binary-masked speech . Journal of the Acoustical Society of America, 139(6), pp. 3033–3036, June 2016. | |

Cochlear implant speech intelligibility outcomes with structured and unstructured binary mask errors . Journal of the Acoustical Society of America, 139(2), pp. 800–810, February 2016. | |

Electrical and optical activation of mesoscale neural circuits with implications for coding . Journal of Neuroscience, 35(47), pp. 15702–15715, November 2015. | |

Modeling Inhibitory Interneurons in Efficient Sensory Coding Models . PLoS Computational Biology, 11(7), pp. e1004353, July 2015. | |

Discrete and Continuous-time Soft-Thresholding with Dynamic Inputs . IEEE Transactions on Signal Processing, 63(12), pp. 3165–3176, June 2015. | |

Structure in time-frequency binary masking errors and its impact on speech intelligibility . Journal of the Acoustical Society of America, 137(4), pp. 2025–2035, April 2015. | |

The Restricted Isometry Property for Random Block Diagonal Matrices . Applied and Computational Harmonic Analysis, 38(1), pp. 1–31, January 2015. | |

Correction to ``Convergence and Rate Analysis of Neural Networks for Sparse Approximation'' . IEEE Transactions on Neural Networks and Learning Systems, 25(8), pp. 1595–1596, August 2014. | |

Optimal Sparse Approximation With Integrate and Fire Neurons . International Journal of Neural Systems, 24(05), pp. 1440001, August 2014. | |

Short Term Memory Capacity in Networks via the Restricted Isometry Property . Neural Computation, 26(6), pp. 1198–1235, June 2014. | |

Spectral Super-Resolution of Hyperspectral Imagery Using Re-Weighted L1 Spatial Filtering . IEEE Geoscience and Remote Sensing Letters, 11(3), pp. 602–606, March 2014. | |

Configurable Hardware Integrate and Fire Neurons for Sparse Approximation . Neural Networks, vol. 45, pp. 134–143, September 2013. Special issue on Neuromorphic Engineering: from Neural Systems to Brain-Like Engineered Systems. | |

Convergence Speed of a Dynamical System for Sparse Recovery . IEEE Transactions on Signal Processing, 61(17), pp. 4259–4269, September 2013. | |

Visual nonclassical receptive field effects emerge from sparse coding in a dynamical system . PLoS Computational Biology, 9(8), pp. e1003191, August 2013. | |

Stable Manifold Embeddings with Structured Random Matrices . IEEE Journal of Selected Topics in Signal Processing, 7(4), pp. 720–730, August 2013. Special issue on Differential Geometry in Signal Processing. | |

Evaluating the generalization of the Hearing Aid Speech Quality Index (HASQI) . IEEE Transactions on Audio, Speech and Language Processing, 21(2), pp. 407–415, February 2013. | |

A Common Network Architecture Efficiently Implements a Variety of Sparsity-based Inference Problems . Neural Computation, 24(12), pp. 3317–3339, December 2012. | |

Convergence and Rate Analysis of Neural Networks for Sparse Approximation . IEEE Transactions on Neural Networks and Learning Systems, 23(9), pp. 1377–1389, September 2012. | |

Low Power Sparse Approximation on Reconfigurable Analog Hardware . IEEE Journal on Emerging and Selected Topics in Circuits and Systems, 2(3), pp. 530–541, September 2012. Special issue on Circuits, Systems and Algorithms for Compressive Sensing. | |

Concentration of Measure for Block Diagonal Matrices with Applications to Compressive Signal Processing . IEEE Transactions on Signal Processing, 59(12), pp. 5859–5875, December 2011. | |

Stable Takens' Embeddings for Linear Dynamical Systems . IEEE Transactions on Signal Processing, 59(10), pp. 4781–4794, October 2011. | |

Learning Sparse Codes for Hyperspectral Imagery . IEEE Journal of Selected Topics in Signal Processing, 5(5), pp. 963–978, September 2011. | |

Sparse coding via thresholding and local competition in neural circuits . Neural Computation, 20(10), pp. 2526–2563, October 2008. | |

Power Scheduling for Wireless Sensor and Actuator Networks . In Proceedings of the International Conference on Information Processing in Sensor Networks (IPSN), pp. 470–478, April 2007. (Acceptance rate 22%) | |

All-optical nanoscale pH meter . Nano Letters, 6(8), pp. 1687–1692, August 2006. | |

Analyzing the robustness of redundant population codes in sensory and feature extraction systems . Neurocomputing, 69(10–12), pp. 1215–1218, June 2006. | |

Evaluating local contributions to global performance in wireless sensor and actuator networks . Lecture Notes in Computer Science, vol. 4026, pp. 1–16, June 2006. it Proceedings of the International Conference on Distributed Computing in Sensor Systems (DCOSS), San Francisco, CA, June 2006 | |

Examining methods for estimating mutual information in spiking neural systems . Neurocomputing, vol. 65–66C, pp. 429–434, June 2005. | |

Measuring information transfer in crayfish sustaining fiber spike generators . Biological Cybernetics, 90(2), pp. 89–97, February 2004. | |

Information processing during transient responses in the crayfish visual system . Neurocomputing, vol. 52–54, pp. 53–58, June 2003. |

The PICASSO algorithm for Bayesian localization via paired comparisons in a union of subspaces model . May 2020. | |

Unsupervised learning of manifold models for coding physical transformations . March 2020. | |

A 17.8 MS/s Neural-Network Compressed Sensing Radar Processor in 16nm FinFET CMOS . March 2020. | |

A General ADMM Framework for Optimal Transport Regularized Problems . December 2019. | |

Dynamical System Implementations of Sparse Bayesian Learning . December 2019. | |

Joint Estimation of Trajectory and Dynamics from Paired Comparisons . December 2019. | |

A change point decoder for sleep/wake detection on memory constrained wearables . December 2019. | |

Parallel Unbalanced Optimal Transport Regularization for Imaging . December 2019. Selected for Spotlight presentation. | |

Hierarchical Optimal Transport for Multimodal Distribution Alignment . December 2019. | |

Sub second dynamics of theta gamma coupling in hippocampal CA1 . October 2019. | |

Electrophysiological features of subcallosal cingulate cortex in patients with treatment-resistant depression . October 2019. | |

Fast Numerical Methods for Convex Problems with Optimal Transport Regularization . July 2019. | |

Cluster-based Optimal Transport Alignment . July 2019. Selected for oral presentation. | |

Natural Variation Transfer using Learned Manifold Operators . July 2019. | |

Active embedding search via noisy paired comparisons . July 2019. | |

Robust Incorporation of Signal Predictions into the Sparse Bayesian Learning Framework . July 2019. | |

Interactive Object Segmentation With Noisy Binary Inputs . November 2018. | |

Rigorous guarantees on sequence memory capacity in recurrent neural networks using randomized dimensionality reduction . October 2018. | |

Sparse Dynamic Filtering via Earth Moverâ€™s Distance Regularization . April 2018. | |

State-aware control of neural activity: design & analysis . March 2018. | |

An Optimal Transport Tracking Regularizer . December 2017. | |

Earth-Mover's Distance as a Tracking Regularizer . December 2017. | |

The patcherBot: a Walk-away Automated Patch-clamp Electrophysiology System . November 2017. | |

Controlling high-complexity robotic swarms with low-complexity EEG brain-machine interfaces . November 2017. | |

Cell membrane tracking in live brain tissue with differential interference contrast (DIC) microscopy . November 2017. | |

Closed loop optogenetic control of thalamocortical activity . November 2017. | |

Optimal E:I cell ratios in efficient coding models of V1 under volume constraints . November 2017. | |

Fast ADMM Solver for Reweighted Total Variation Image Deconvolution and Inpainting . November 2017. | |

Dynamic Filtering with Earth Moverâ€™s Distance Regularization . June 2017. | |

Stabilizing Embedology: Geometry-Preserving Delay-Coordinate Maps . June 2017. Selected for oral presentation. | |

Compression of multiple input streams into recursive neural networks . June 2017. | |

Active learning approaches for complex non-invasive brain-computer interfaces . June 2017. | |

Stabilizing Embedology: When Do Delay-Coordinate Maps Preserve Geometry? . May 2017. Invited | |

Closed-loop Optogenetic Control of Neural Circuits: Tracking dynamic trajectories of firing rate in vivo . April 2017. | |

Precision Cell Boundary Tracking on DIC Microscopy Video for Patch Clamping . March 2017. | |

Short-term Sequence Memory in Recurrent Networks . December 2016. | |

Unsupervised learning of manifold models for neural coding of physical transformations in the ventral visual pathway . December 2016. | |

Efficient Randomized Filtering for Dimensionality Reduction in Electrophysiology Data . December 2016. | |

Closed Loop Optogenetic Control of Neural Circuits in vivo: Developing Design Principles for Controlling Patterns of Neural Firing Rate . November 2016. | |

Closed Loop Optogenetic Control of Neural Circuits in vivo: Developing design principles for controlling patterns of neural firing rate . November 2016. | |

Cortical communication via randomized dimensionality reduction with local synaptic connections . February 2016. | |

Closed loop optogenetic control of neural circuits: Tracking dynamic trajectories of neural activity . February 2016. | |

Learning manifold transport operators of 3D transformations from 2D imagery . January 2016. | |

Closing the loop around firing rate: Following dynamic trajectories . October 2015. | |

Learning a Dynamics Dictionary for Time-Varying Sparse Signals . July 2015. | |

Restricting Vocabulary Size in Pediatric Augmentative and Alternative Communication . June 2015. | |

Convergence of Basis Pursuit De-noising with Dynamic Filtering . December 2014. | |

Can Random Linear Networks Store Multiple Long Input Streams? . December 2014. | |

A First Analysis of the Stability of Takens' Embedding . December 2014. | |

The role of sparsity in visual perception . November 2014. | |

The influence of structure in binary mask estimation error on speech intelligibility . August 2014. Selected for oral presentation. | |

Sparsity Based Spectral Super-Resolution and Applications to Ocean Water Color . July 2014. | |

Iterative Soft-Thresholding for Time-Varying Signal Recovery . May 2014. | |

Coding consequences of activity propagation from sensory and artificial stimulation of neural circuits . February 2014. | |

Modeling single-trial V1 population response to dynamic natural scenes . December 2013. | |

Speech Understanding in Noise Provided by a Simulated Cochlear Implant Processor Based on Matching Pursuit . October 2013. | |

Convergence of a Neural Network for Sparse Approximation using the Nonsmooth Łojasiewicz Inequality . August 2013. | |

Using compressed sensing to study sequence memory capacity in networked systems . July 2013. | |

Stochastic Filtering via Reweighted-l1 . July 2013. | |

A sparse coding model of V1 produces surround suppression effects in response to natural scene . July 2013. | |

Sparse coding model captures V1 population response statistics to natural movies . July 2013. | |

Speech separation using Matching Pursuit for time-frequency masking . July 2013. | |

Causal binary mask estimation for speech enhancement using sparsity constraints . June 2013. | |

Compressed Sensing Radar Using Recurrent Neural Networks . June 2013. | |

Dynamic Filtering of Sparse Signals Using Reweighted L1 . May 2013. | |

A Novel Binary Mask Estimator Based on Sparse Approximation . May 2013. | |

Sparse coding model and population response statistics to natural movies in V1 . February 2013. | |

Compressive LADAR Detector Noise Performance . November 2012. | |

Compressive LADAR in Realistic Environments . August 2012. | |

The Restricted Isometry Property for Echo State Networks with Applications to Sequence Memory Capacity . August 2012. | |

Short Term Memory in Neural Networks via the Restricted Isometry Property . July 2012. Invited talk. | |

Biologically realistic excitatory and inhibitory cell properties emerge from a sparse coding network . July 2012. | |

The Restricted Isometry Property for Block Diagonal Matrices . June 2012. | |

The Restricted Isometry Property for Echo State Networks with Applications to Sequence Memory Capacity . June 2012. | |

Short-Term Memory Capacity in Recurrent Networks via Compressed Sensing . May 2012. | |

Biophysically accurate non-classical and inhibitory interneuron properties in a sparse coding network . May 2012. | |

Short-Term Memory Capacity in Recurrent Networks via Compressed Sensing . February 2012. | |

Biophysically accurate inhibitory interneuron properties in a sparse coding network . February 2012. | |

A Scalable Implementation of Sparse Approximation on a Field Programmable Analog Array . November 2011. | |

Robustness of the Hearing Aid Speech Quality Index (HASQI) . October 2011. | |

Computational auditory models validate the intelligibility benefits of ``efficient filters'' . August 2011. | |

Stable Embeddings of Time Series Data . July 2011. | |

A compressive sensing LIDAR architecture . July 2011. | |

Convergence and Rate Analysis of Neural Networks for Sparse Approximation . July 2011. | |

Learning sparse codes for hyperspectral images . July 2011. | |

Concentration Inequalities and Isometry Properties for Compressive Block Diagonal Matrices . July 2011. | |

Concentration Inequalities and Isometry Properties for Compressive Block Diagonal Matrices . June 2011. | |

A Hierarchical Re-weighted-l1 Approach for Dynamic Sparse Signal Estimation . June 2011. | |

Stable Embeddings of Time Series Data . June 2011. | |

Recent evidence of sparse coding in neural systems . June 2011. | |

Estimation and Dynamic Updating of Time-Varying Signals With Sparse Variations . May 2011. | |

Compressive LIDAR Conceptual Model and Simulation Results . May 2011. | |

The Restricted Isometry Property for Block Diagonal Matrices . March 2011. | |

Stable Manifold Embeddings with Operators Satisfying the Restricted Isometry Property . March 2011. | |

Sparsity Penalties in Dynamical System Estimation . March 2011. | |

Population characteristics and interpretations of nCRF effects emerging from sparse coding . February 2011. | |

Sparse approximation on a network of locally competitive integrate and fire neurons . February 2011. | |

Global Convergence of the Locally Competitive Algorithm . January 2011. | |

Causal sparse decomposition of audio signals . January 2011. | |

Stable Takens' Embedding for Linear Dynamical Systems . December 2010. Invited paper for session on \emphExploiting Sparsity and Compressive Sensing in System Identification. | |

Analog Sparse Approximation for Compressed Sensing Recovery . November 2010. | |

Sparse Coding for Spectral Signatures in Hyperspectral Images . November 2010. | |

Predicting speech quality using a computational auditory model . August 2010. | |

Sparse coding models demonstrate some non-classical receptive field effects . July 2010. Selected for oral presentation. | |

Concentration of Measure for Block Diagonal Matrices With Repeated Blocks . March 2010. Invited paper | |

Concentration of Measure for Block Diagonal Measurement Matrices . March 2010. | |

Exploring the statistical structure of large-scale neural recordings using a sparse coding model . February 2010. | |

Reconstruction of compressively sensed images via neurally plausible local competitive algorithms . pp. 476–479, March 2008. | |

Distributed processing in frames for sparse approximation . March 2008. Invited paper | |

Locally competitive algorithms for sparse approximation . pp. 169–172, September 2007. | |

Modeling sensor networks with fusion frames . vol. 6701, pp. 67011M-1 – 67011M-11, August 2007. | |

Neurally plausible sparse coding via competitive algorithms . February 2007. | |

Information Theory and Neuroscience: A Tutorial . November 2006. | |

All-optical nanoscale pH meter: a plasmonic nanodevice with quantifiable output . October 2006. Invited paper | |

Sparse Coding via Thresholding and Local Competition . August 2006. | |

Information Theory and Neuroscience . July 2006. | |

Feature-based information processing with selective attention . May 2006. | |

Analysis of noise reduction in redundant expansions under distributed processing requirements . pp. 185–188, March 2005. | |

To cooperate or not to cooperate: Detection strategies in sensor networks . pp. 841–844, May 2004. | |

Matched filter performance for unequal target and background covariance matrices . pp. 109–117, April 2004. | |

A theoretical framework for electro-acoustic music . 1999. |

Information Theory and Systems Neuroscience . Chapter in Analysis of parallel spike trains (S. Grün, S. Rotter, eds.), Springer-Verlag, 2010. |

On the Relation between Block Diagonal Matrices and Compressive Toeplitz Matrices . Technical report, Georgia Institute of Technology, School of Electrical and Computer Engineering, October 2011. | |

Distributed redundant representations in man-made and biological sensing systems . Ph.D. thesis, Rice University, May 2007. | |

Analyzing dynamics and stimulus feature dependence in the information processing of crayfish sustaining fibers . M.S. thesis, Rice University, May 2002. |