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Javier S. Turek

8 accepted papers

2021

Low-dimensional Structure in the Space of Language Representations is Reflected in Brain Responses

NeurIPS 2021poster

How related are the representations learned by neural language models, translation models, and language tagging tasks? We answer this question by adapting an encoder-decoder transfer learning method from computer vision to investigate the structure among 100 different feature spaces extracted from…

2021

Multi-timescale Representation Learning in LSTM Language Models

ICLR 2021poster

Language models must capture statistical dependencies between words at timescales ranging from very short to very long. Earlier work has demonstrated that dependencies in natural language tend to decay with distance between words according to a power law. However, it is unclear how this knowledge ca…

Cited by 35SourcePDFScholar
2020

Interpretable multi-timescale models for predicting fMRI responses to continuous natural speech

NeurIPS 2020poster

Natural language contains information at multiple timescales. To understand how the human brain represents this information, one approach is to build encoding models that predict fMRI responses to natural language using representations extracted from neural network language models (LMs). However, th…

Cited by 49SourcePDFScholar
2019

A Zero-Positive Learning Approach for Diagnosing Software Performance Regressions

NeurIPS 2019poster

The field of machine programming (MP), the automation of the development of software, is making notable research advances. This is, in part, due to the emergence of a wide range of novel techniques in machine learning. In this paper, we apply MP to the automation of software performance regression t…

2018

Capturing Shared and Individual Information in fMRI Data

ICASSP 2018accepted

Cognitive neuroscience seeks to explain the organization of the brain, but typically focuses on aspects that are shared across people rather than those that vary across individuals. Here, we present a new method for analyzing brain imaging data that captures both shared and individual components of…

Cited by 0SourceScholar
2018

Efficient, Sparse Representation of Manifold Distance Matrices for Classical Scaling

CVPR 2018poster

Geodesic distance matrices can reveal shape properties that are largely invariant to non-rigid deformations, and thus are often used to analyze and represent 3-D shapes. However, these matrices grow quadratically with the number of points. Thus for large point sets it is common to use a low-rank app…

2017

A semi-supervised method for multi-subject FMRI functional alignment

ICASSP 2017accepted

Practical limitations on the duration of individual fMRI scans have led neuroscientist to consider the aggregation of data from multiple subjects. Differences in anatomical structures and functional topographies of brains require aligning data across subjects. Existing functional alignment methods s…

Cited by 0SourceScholar
2015

Fusion of ultrasound harmonic imaging with clutter removal using sparse signal separation

ICASSP 2015accepted

In ultrasound, second harmonic imaging is usually preferred due to the higher clutter artifacts and speckle noise common in the first harmonic image. Typical ultrasound use either one or the other image, applying corresponding filters for each case. In this work we propose a method based on a joint…

Cited by 0SourceScholar