Search Results for author: Trevor Cohen

Found 24 papers, 7 papers with code

Comparing emotion feature extraction approaches for predicting depression and anxiety

no code implementations NAACL (CLPsych) 2022 Hannah Burkhardt, Michael Pullmann, Thomas Hull, Patricia Aren, Trevor Cohen

The increasing adoption of message-based behavioral therapy enables new approaches to assessing mental health using linguistic analysis of patient-generated text.

Identifying Distorted Thinking in Patient-Therapist Text Message Exchanges by Leveraging Dynamic Multi-Turn Context

no code implementations NAACL (CLPsych) 2022 Kevin Lybarger, Justin Tauscher, Xiruo Ding, Dror Ben-Zeev, Trevor Cohen

In this work, we automatically identify distorted thinking in text-based patient-therapist exchanges, investigating the role of conversation history (context) in distortion prediction.

Useful Blunders: Can Automated Speech Recognition Errors Improve Downstream Dementia Classification?

no code implementations10 Jan 2024 Changye Li, Weizhe Xu, Trevor Cohen, Serguei Pakhomov

\textbf{Results}: Imperfect ASR-generated transcripts surprisingly outperformed manual transcription for distinguishing between individuals with AD and those without in the ``Cookie Theft'' task.

Automatic Speech Recognition Automatic Speech Recognition (ASR) +2

Bridging the Skills Gap: Evaluating an AI-Assisted Provider Platform to Support Care Providers with Empathetic Delivery of Protocolized Therapy

no code implementations8 Jan 2024 William R. Kearns, Jessica Bertram, Myra Divina, Lauren Kemp, Yinzhou Wang, Alex Marin, Trevor Cohen, Weichao Yuwen

We studied providers with and without expertise in mental health treatment delivering a therapy session using the platform with (intervention) and without (control) AI-assistance features.

Enhancing Robustness of Foundation Model Representations under Provenance-related Distribution Shifts

no code implementations9 Dec 2023 Xiruo Ding, Zhecheng Sheng, Brian Hur, Feng Chen, Serguei V. S. Pakhomov, Trevor Cohen

We focus on confounding by provenance, a form of distribution shift that emerges in the context of multi-institutional datasets when there are differences in source-specific language use and class distributions.

Personalized Jargon Identification for Enhanced Interdisciplinary Communication

no code implementations16 Nov 2023 Yue Guo, Joseph Chee Chang, Maria Antoniak, Erin Bransom, Trevor Cohen, Lucy Lu Wang, Tal August

We collect a dataset of over 10K term familiarity annotations from 11 computer science researchers for terms drawn from 100 paper abstracts.

APPLS: Evaluating Evaluation Metrics for Plain Language Summarization

1 code implementation23 May 2023 Yue Guo, Tal August, Gondy Leroy, Trevor Cohen, Lucy Lu Wang

In response, we introduce POMME, a new metric designed to assess text simplification in PLS; the metric is calculated as the normalized perplexity difference between an in-domain and out-of-domain language model.

Informativeness Language Modelling +2

TRESTLE: Toolkit for Reproducible Execution of Speech, Text and Language Experiments

1 code implementation14 Feb 2023 Changye Li, Weizhe Xu, Trevor Cohen, Martin Michalowski, Serguei Pakhomov

The evidence is growing that machine and deep learning methods can learn the subtle differences between the language produced by people with various forms of cognitive impairment such as dementia and cognitively healthy individuals.

The Far Side of Failure: Investigating the Impact of Speech Recognition Errors on Subsequent Dementia Classification

1 code implementation11 Nov 2022 Changye Li, Trevor Cohen, Serguei Pakhomov

Linguistic anomalies detectable in spontaneous speech have shown promise for various clinical applications including screening for dementia and other forms of cognitive impairment.

Automatic Speech Recognition Automatic Speech Recognition (ASR) +3

Retrieval augmentation of large language models for lay language generation

1 code implementation7 Nov 2022 Yue Guo, Wei Qiu, Gondy Leroy, Sheng Wang, Trevor Cohen

Recent lay language generation systems have used Transformer models trained on a parallel corpus to increase health information accessibility.

Explanation Generation Retrieval +1

GPT-D: Inducing Dementia-related Linguistic Anomalies by Deliberate Degradation of Artificial Neural Language Models

2 code implementations ACL 2022 Changye Li, David Knopman, Weizhe Xu, Trevor Cohen, Serguei Pakhomov

Deep learning (DL) techniques involving fine-tuning large numbers of model parameters have delivered impressive performance on the task of discriminating between language produced by cognitively healthy individuals, and those with Alzheimer's disease (AD).

Should Semantic Vector Composition be Explicit? Can it be Linear?

no code implementations ACL (SemSpace, IWCS) 2021 Dominic Widdows, Kristen Howell, Trevor Cohen

The second considers whether semantic vector composition should be explicitly described mathematically, or whether it can be a model-internal side-effect of training a neural network.

Language Modelling

Quantum Mathematics in Artificial Intelligence

no code implementations12 Jan 2021 Dominic Widdows, Kirsty Kitto, Trevor Cohen

In the decade since 2010, successes in artificial intelligence have been at the forefront of computer science and technology, and vector space models have solidified a position at the forefront of artificial intelligence.

Information Retrieval Negation +3

Automated Lay Language Summarization of Biomedical Scientific Reviews

1 code implementation23 Dec 2020 Yue Guo, Wei Qiu, Yizhong Wang, Trevor Cohen

Health literacy has emerged as a crucial factor in making appropriate health decisions and ensuring treatment outcomes.

Data Augmentation

Improving Biomedical Analogical Retrieval with Embedding of Structural Dependencies

no code implementations WS 2020 Am Paullada, alynne, Bethany Percha, Trevor Cohen

Inferring the nature of the relationships between biomedical entities from text is an important problem due to the difficulty of maintaining human-curated knowledge bases in rapidly evolving fields.

Retrieval Word Embeddings

A Tale of Two Perplexities: Sensitivity of Neural Language Models to Lexical Retrieval Deficits in Dementia of the Alzheimer's Type

1 code implementation ACL 2020 Trevor Cohen, Serguei Pakhomov

In recent years there has been a burgeoning interest in the use of computational methods to distinguish between elicited speech samples produced by patients with dementia, and those from healthy controls.

Retrieval

Bringing Order to Neural Word Embeddings with Embeddings Augmented by Random Permutations (EARP)

no code implementations CONLL 2018 Trevor Cohen, Dominic Widdows

Word order is clearly a vital part of human language, but it has been used comparatively lightly in distributional vector models.

Retrieval Word Embeddings

Retrofitting Concept Vector Representations of Medical Concepts to Improve Estimates of Semantic Similarity and Relatedness

no code implementations21 Sep 2017 Zhiguo Yu, Byron C. Wallace, Todd Johnson, Trevor Cohen

In this paper, we present a method that retrofits distributional context vector representations of biomedical concepts using structural information from the UMLS Metathesaurus, such that the similarity between vector representations of linked concepts is augmented.

Semantic Similarity Semantic Textual Similarity

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