activity
20212026
most citedNeighborhood-based Hard Negative Mining for Sequential Recommendation

17 citations · 25 across the 11 of their papers we have counts for

collaborators

11 papers

cs.IR2026

Tencent Advertising Algorithm Challenge 2025: All-Modality Generative Recommendation

Junwei Pan, Wei Xue, Chao Zhou +20

Generative recommender systems are rapidly emerging as a new paradigm for recommendation, where collaborative identifiers and/or multi-modal content are mapped into discrete token…

cs.IR2026

Accelerating Generative Recommendation via Simple Categorical User Sequence Compression

Qijiong Liu, Lu Fan, Zhongzhou Liu +7

Although generative recommenders demonstrate improved performance with longer sequences, their real-time deployment is hindered by substantial computational costs. To address this…

cs.IR2025

Evaluating Recabilities of Foundation Models: A Multi-Domain, Multi-Dataset Benchmark

Qijiong Liu, Jieming Zhu, Yingxin Lai +5

Comprehensive evaluation of the recommendation capabilities of existing foundation models across diverse datasets and domains is essential for advancing the development of recommen…

cs.IR2025

Can LLMs Outshine Conventional Recommenders? A Comparative Evaluation

Qijiong Liu, Jieming Zhu, Lu Fan +5

In recent years, integrating large language models (LLMs) into recommender systems has created new opportunities for improving recommendation quality. However, a comprehensive benc…

cs.IR2024

Legommenders: A Comprehensive Content-Based Recommendation Library with LLM Support

Qijiong Liu, Lu Fan, Xiao-Ming Wu

We present Legommenders, a unique library designed for content-based recommendation that enables the joint training of content encoders alongside behavior and interaction modules,…

cs.IR2024

Learning Multi-Aspect Item Palette: A Semantic Tokenization Framework for Generative Recommendation

Qijiong Liu, Jieming Zhu, Zhaocheng Du +3

Traditional recommendation models often rely on unique item identifiers (IDs) to distinguish between items, which can hinder their ability to effectively leverage item content info…

cs.IR2023

Learning Category Trees for ID-Based Recommendation: Exploring the Power of Differentiable Vector Quantization

Qijiong Liu, Lu Fan, Jiaren Xiao +2

Category information plays a crucial role in enhancing the quality and personalization of recommender systems. Nevertheless, the availability of item category information is not co…

cs.IR2023★ 17 cited

Neighborhood-based Hard Negative Mining for Sequential Recommendation

Lu Fan, Jiashu Pu, Rongsheng Zhang +1

Negative sampling plays a crucial role in training successful sequential recommendation models. Instead of merely employing random negative sample selection, numerous strategies ha…

cs.CV2023★ 7 cited

Multi-modal Pre-training for Medical Vision-language Understanding and Generation: An Empirical Study with A New Benchmark

Li Xu, Bo Liu, Ameer Hamza Khan +2

With the availability of large-scale, comprehensive, and general-purpose vision-language (VL) datasets such as MSCOCO, vision-language pre-training (VLP) has become an active area…

cs.IR2022

Modeling User Behavior with Graph Convolution for Personalized Product Search

Fan Lu, Qimai Li, Bo Liu +7

User preference modeling is a vital yet challenging problem in personalized product search. In recent years, latent space based methods have achieved state-of-the-art performance b…

cs.CL2021★ 1 cited

Out-of-Scope Intent Detection with Self-Supervision and Discriminative Training

Li-Ming Zhan, Haowen Liang, Bo Liu +3

Out-of-scope intent detection is of practical importance in task-oriented dialogue systems. Since the distribution of outlier utterances is arbitrary and unknown in the training st…