← Search

Wenchang Ma

5 accepted papers

2026

When to Memorize and When to Stop: Gated Recurrent Memory for Long-Context Reasoning

ICML 2026poster

While reasoning over long context is crucial for various real-world applications, it remains challenging for large language models (LLMs) as they suffer from performance degradation as the context length grows. Recent work MemAgent has tried to tackle this by processing context chunk-by-chunk in an …

Cited by 0SourceScholar
2023

Boosting Causal Discovery via Adaptive Sample Reweighting

ICLR 2023poster

Under stringent model type and variable distribution assumptions, score-based causal discovery methods learn the directed acyclic graph (DAG) from observational data by evaluating candidate graphs over an averaged score function. Despite the great success in low-dimensional linear systems, it has be…

2022

Incorporating Bias-aware Margins into Contrastive Loss for Collaborative Filtering

NeurIPS 2022accept

Collaborative filtering (CF) models easily suffer from popularity bias, which makes recommendation deviate from users’ actual preferences. However, most current debiasing strategies are prone to playing a trade-off game between head and tail performance, thus inevitably degrading the overall recommen…

2021

CR-Walker: Tree-Structured Graph Reasoning and Dialog Acts for Conversational Recommendation

EMNLP 2021main

Growing interests have been attracted in Conversational Recommender Systems (CRS), which explore user preference through conversational interactions in order to make appropriate recommendation. However, there is still a lack of ability in existing CRS to (1) traverse multiple reasoning paths over ba…

2021

Extract, Denoise and Enforce: Evaluating and Improving Concept Preservation for Text-to-Text Generation

EMNLP 2021main

Prior studies on text-to-text generation typically assume that the model could figure out what to attend to in the input and what to include in the output via seq2seq learning, with only the parallel training data and no additional guidance. However, it remains unclear whether current models can pre…