collaborators

5 papers

cs.IR2026

The Efficiency vs. Accuracy Trade-off: Optimizing RAG-Enhanced LLM Recommender Systems Using Multi-Head Early Exit

Huixue Zhou, Hengrui Gu, Xi Liu +15

The deployment of Large Language Models (LLMs) in recommender systems for predicting Click-Through Rates (CTR) necessitates a delicate balance between computational efficiency and…

cs.LG2026

Precision Tracked Transformer via Kalman Filtering, Kriging and Process Noise

Bo Long, Deepak Agarwal, Jelena Markovic-Voronov +2

The Transformer is the foundational building block of modern AI, yet offers no principled handling of \emph{uncertainty}, which is prevalent in real applications: cold-start tokens…

cs.LG2026

Sampling for Quality: Training-Free Reward-Guided LLM Decoding via Sequential Monte Carlo

Jelena Markovic-Voronov, Wenhui Zhu, Bo Long +5

We introduce a principled probabilistic framework for reward-guided decoding in large language models, addressing the limitations of standard decoding methods that optimize token-l…

cs.IR2025

InterFormer: Effective Heterogeneous Interaction Learning for Click-Through Rate Prediction

Zhichen Zeng, Xiaolong Liu, Mengyue Hang +25

Click-through rate (CTR) prediction, which predicts the probability of a user clicking an ad, is a fundamental task in recommender systems. The emergence of heterogeneous informati…

cs.IR2025

External Large Foundation Model: How to Efficiently Serve Trillions of Parameters for Online Ads Recommendation

Mingfu Liang, Xi Liu, Rong Jin +104

Ads recommendation is a prominent service of online advertising systems and has been actively studied. Recent studies indicate that scaling-up and advanced design of the recommenda…