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20192026
most citedTrying to Outrun Causality with Machine Learning: Limitations of Model Explainability Techniques for Identifying Predictive Variables

7 citations · 17 across the 21 of their papers we have counts for

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6 papers · 1 filter

cs.CL2026

Kurate: Scalable Scientific Quality Analysis

Matthew J. Vowels, Jamie Cummins

Scientific search systems can find papers that are relevant to a question, but they generally do not assess the quality of the evidence that those papers provide. We present Kurate…

cs.CL2026

K-Bench: a clinically calibrated benchmark for evaluating large language models in high-risk mental health conversations

Laura M. Vowels, Matthew J. Vowels, Shivali Sharma +9

People increasingly use large language models (LLMs) for mental health support, yet their safety in evolving, high-risk conversations remains poorly characterised. We developed K-B…

cs.CY2026

Quantifying the Relationship Between Clinical Safety and Environmental Impact in Therapeutic LLMs

Alireza A. Safaei, Laura M. Vowels, Matthew J. Vowels +2

The deployment of large language models (LLMs) in mental health contexts raises questions about the relationship between clinical safety and environmental cost. In this paper, we e…

cs.IR2026

Sequences as Nodes for Contrastive Multimodal Graph Recommendation

Bucher Sahyouni, Matthew Vowels, Liqun Chen +1

To tackle cold-start and data sparsity issues in recommender systems, numerous multimodal, sequential, and contrastive techniques have been proposed. While these augmentations can…

cs.IR2026

Multimodal Enhancement of Sequential Recommendation

Bucher Sahyouni, Matthew Vowels, Liqun Chen +1

We propose a novel recommender framework, MuSTRec (Multimodal and Sequential Transformer-based Recommendation), that unifies multimodal and sequential recommendation paradigms. MuS…

cs.LG2026

DSL: Understanding and Improving Softmax Recommender Systems with Competition-Aware Scaling

Bucher Sahyouni, Matthew Vowels, Liqun Chen +1

Softmax Loss (SL) is being increasingly adopted for recommender systems (RS) as it has demonstrated better performance, robustness and fairness. Yet in implicit-feedback, a single…