papers

Publications (17)

cs.DB2012

Supercharging Recommender Systems using Taxonomies for Learning User Purchase Behavior

Bhargav Kanagal, Amr Ahmed, Sandeep Pandey +3

Recommender systems based on latent factor models have been effectively used for understanding user interests and predicting future actions. Such models work by projecting the user…

cs.IR2026

Bifocal Diffusion Language Models: Asymmetric Bidirectional Context for Parallel Generation

Yuhang Chen, Xianfeng Wu, Jinhao Duan +11

Discrete diffusion language models (dLLMs) recover masked tokens in parallel, offering significant speedups over autoregressive (AR) generation. However, such promising frameworks…

physics.flu-dyn2025

OpenFOAMGPT: a RAG-Augmented LLM Agent for OpenFOAM-Based Computational Fluid Dynamics

Sandeep Pandey, Ran Xu, Wenkang Wang +1

This work presents a large language model (LLM)-based agent OpenFOAMGPT tailored for OpenFOAM-centric computational fluid dynamics (CFD) simulations, leveraging two foundation mode…

cs.CL2026

Self-Guided Test-Time Training for Long-Context LLMs

Xinyu Zhu, Zhe Xu, Xiaohan Wei +10

Long-context processing has become increasingly important for large language models (LLMs), but simply extending the context window does not guarantee effective utilization of long…

cs.IR2026

End-to-End Dynamic Sparsity for Resource-Adaptive LLM Inference

Yuhang Chen, Jinhao Duan, Ruichen Zhang +11

Large Language Models (LLMs) inference is typically deployed under a static resource assumption, where models execute a fixed computational graph regardless of the runtime environm…

cs.IR2026

The Case Against Generation for Retrieval: Discriminative Language Models as Effective Retrievers

Zhe Xu, Prachi Agrawal, Kavosh Asadi +17

Large Language Models (LLMs) have emerged as powerful assets for recommender systems. However, deploying them as generative recommenders or zero-shot rankers at web-scale remains b…