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Large Language Models (LLMs) are increasingly used to refactor unit tests, improving readability and structure while preserving behavior. Evaluating such refactorings, however, remains difficult: metrics like CodeBLEU penalize beneficial…

Software Engineering · Computer Science 2025-10-21 Wendkûuni C. Ouédraogo , Yinghua Li , Xueqi Dang , Xin Zhou , Anil Koyuncu , Jacques Klein , David Lo , Tegawendé F. Bissyandé

Short text classification has gained significant attention in the information age due to its prevalence and real-world applications. Recent advancements in graph learning combined with contrastive learning have shown promising results in…

Computation and Language · Computer Science 2025-01-17 Yonghao Liu , Fausto Giunchiglia , Lan Huang , Ximing Li , Xiaoyue Feng , Renchu Guan

Vision-Language Models (VLMs) have enabled interpretable medical diagnosis by integrating visual perception with linguistic reasoning. Yet, existing medical chain-of-thought (CoT) models lack explicit mechanisms to represent and enforce…

Artificial Intelligence · Computer Science 2026-05-29 Jianxin Lin , Chunzheng Zhu , Peter J. Kneuertz , Yunfei Bai , Yuan Xue

Prevailing methods for training Large Language Models (LLMs) as text encoders rely on contrastive losses that treat the model as a black box function, discarding its generative and reasoning capabilities in favor of static embeddings. We…

Computation and Language · Computer Science 2025-10-07 Jiashuo Sun , Shixuan Liu , Zhaochen Su , Xianrui Zhong , Pengcheng Jiang , Bowen Jin , Peiran Li , Weijia Shi , Jiawei Han

Unsupervised cell type identification is crucial for uncovering and characterizing heterogeneous populations in single cell omics studies. Although a range of clustering methods have been developed, most focus exclusively on intrinsic…

Artificial Intelligence · Computer Science 2025-12-12 Liang Peng , Haopeng Liu , Yixuan Ye , Cheng Liu , Wenjun Shen , Si Wu , Hau-San Wong

We experiment with two recent contextualized word embedding methods (ELMo and BERT) in the context of open-domain argument search. For the first time, we show how to leverage the power of contextualized word embeddings to classify and…

Computation and Language · Computer Science 2019-06-25 Nils Reimers , Benjamin Schiller , Tilman Beck , Johannes Daxenberger , Christian Stab , Iryna Gurevych

Medical image representations can be learned through medical vision-language contrastive learning (mVLCL) where medical imaging reports are used as weak supervision through image-text alignment. These learned image representations can be…

Computer Vision and Pattern Recognition · Computer Science 2025-02-10 Mingjian Li , Mingyuan Meng , Michael Fulham , David Dagan Feng , Lei Bi , Jinman Kim

Object counting has progressed from class-specific models, which count only known categories, to class-agnostic models that generalize to unseen categories. The next challenge is Referring Expression Counting (REC), where the goal is to…

Computer Vision and Pattern Recognition · Computer Science 2025-05-30 Kostas Triaridis , Panagiotis Kaliosis , E-Ro Nguyen , Jingyi Xu , Hieu Le , Dimitris Samaras

Graph contrastive learning (GCL) has emerged as a state-of-the-art strategy for learning representations of diverse graphs including social and biomedical networks. GCL widely uses stochastic graph topology augmentation, such as uniform…

Machine Learning · Computer Science 2024-02-22 Yucheng Wu , Leye Wang , Xiao Han , Han-Jia Ye

Electronic health records (EHR) contain narrative notes that provide extensive details on the medical condition and management of patients. Natural language processing (NLP) of clinical notes can use observed frequencies of clinical terms…

Computation and Language · Computer Science 2023-07-04 Bryan Cai , Sihang Zeng , Yucong Lin , Zheng Yuan , Doudou Zhou , Lu Tian

Objective: Clinical trials are essential for advancing pharmaceutical interventions, but they face a bottleneck in selecting eligible participants. Although leveraging electronic health records (EHR) for recruitment has gained popularity,…

Computation and Language · Computer Science 2026-01-15 Mojdeh Rahmanian , Seyed Mostafa Fakhrahmad , Seyedeh Zahra Mousavi

Recent trends in NLP utilize knowledge graphs (KGs) to enhance pretrained language models by incorporating additional knowledge from the graph structures to learn domain-specific terminology or relationships between documents that might…

Computation and Language · Computer Science 2025-10-08 Anastasia Zhukova , Jonas Lührs , Christian E. Lobmüller , Bela Gipp

We introduce GENomic Encoding REpresentation with Language Model (GENEREL), a framework designed to bridge genetic and biomedical knowledge bases. What sets GENEREL apart is its ability to fine-tune language models to infuse biological…

Machine Learning · Computer Science 2024-10-15 Hongyi Yuan , Suqi Liu , Kelly Cho , Katherine Liao , Alexandre Pereira , Tianxi Cai

Biomedical ontologies, which comprehensively define concepts and relations for biomedical entities, are crucial for structuring and formalizing domain-specific information representations. Biomedical code mapping identifies similarity or…

Information Retrieval · Computer Science 2025-02-27 Hui Feng , Yuntzu Yin , Emiliano Reynares , Jay Nanavati

Large language models (LLMs) have demonstrated impressive performance in text generation tasks; however, their embedding spaces often suffer from the isotropy problem, resulting in poor discrimination of domain-specific terminology,…

Computation and Language · Computer Science 2025-12-23 Yidan Sun , Mengying Zhu , Feiyue Chen , Yangyang Wu , Xiaolei Dan , Mengyuan Yang , Xiaolin Zheng , Shenglin Ben

Reward models (RMs) are a crucial component in the alignment of large language models' (LLMs) outputs with human values. RMs approximate human preferences over possible LLM responses to the same prompt by predicting and comparing reward…

Machine Learning · Computer Science 2025-02-27 Junqi Jiang , Tom Bewley , Saumitra Mishra , Freddy Lecue , Manuela Veloso

We present a unified vision-language framework tailored for ENT endoscopy image analysis that simultaneously tackles three clinically-relevant tasks: image classification, image-to-image retrieval, and text-to-image retrieval. Unlike…

Computer Vision and Pattern Recognition · Computer Science 2025-09-03 Y Hop Nguyen , Doan Anh Phan Huu , Trung Thai Tran , Nhat Nam Mai , Van Toi Giap , Thao Thi Phuong Dao , Trung-Nghia Le

Pre-trained Large Language Models (LLMs) often struggle on out-of-domain datasets like healthcare focused text. We explore specialized pre-training to adapt smaller LLMs to different healthcare datasets. Three methods are assessed:…

Computation and Language · Computer Science 2024-04-01 Niall Taylor , Dan Schofield , Andrey Kormilitzin , Dan W Joyce , Alejo Nevado-Holgado

Large Language Models (LLMs) are powerful tools with profound societal impacts, yet their ability to generate responses to diverse and uncontrolled inputs leaves them vulnerable to adversarial attacks. While existing defenses often struggle…

Computation and Language · Computer Science 2025-12-30 Samuel Simko , Mrinmaya Sachan , Bernhard Schölkopf , Zhijing Jin

Identifying related entities and events within and across documents is fundamental to natural language understanding. We present an approach to entity and event coreference resolution utilizing contrastive representation learning. Earlier…

Computation and Language · Computer Science 2022-05-24 Benjamin Hsu , Graham Horwood