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Alona Fyshe

7 accepted papers

2025

Finding Shared Decodable Concepts and their Negations in the Brain

ICLR 2025poster

Prior work has offered evidence for functional localization in the brain; different anatomical regions preferentially activate for certain types of visual input. For example, the fusiform face area preferentially activates for visual stimuli that include a face. However, the spectrum of visual seman…

Cited by 0SourcePDFScholar
2023

Language and Mental Health: Measures of Emotion Dynamics from Text as Linguistic Biosocial Markers

EMNLP 2023long main

Research in psychopathology has shown that, at an aggregate level, the patterns of emotional change over time---emotion dynamics---are indicators of one's mental health. One's patterns of emotion change have traditionally been determined through self-reports of emotions; however, there are known iss…

Cited by 0SourceScholar
2022

Question Generation for Reading Comprehension Assessment by Modeling How and What to Ask

ACL 2022findings

Reading is integral to everyday life, and yet learning to read is a struggle for many young learners. During lessons, teachers can use comprehension questions to increase engagement, test reading skills, and improve retention. Historically such questions were written by skilled teachers, but recentl…

2022

Resonance in Weight Space: Covariate Shift Can Drive Divergence of SGD with Momentum

ICLR 2022poster

Most convergence guarantees for stochastic gradient descent with momentum (SGDm) rely on iid sampling. Yet, SGDm is often used outside this regime, in settings with temporally correlated input samples such as continual learning and reinforcement learning. Existing work has shown that SGDm with a de…

Cited by 0SourcePDFScholar
2020

Maxmin Q-learning: Controlling the Estimation Bias of Q-learning

ICLR 2020poster

Q-learning suffers from overestimation bias, because it approximates the maximum action value using the maximum estimated action value. Algorithms have been proposed to reduce overestimation bias, but we lack an understanding of how bias interacts with performance, and the extent to which existing a…

Cited by 227SourcecodeScholar