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The effective training and evaluation of retrieval systems require a substantial amount of relevance judgments, which are traditionally collected from human assessors -- a process that is both costly and time-consuming. Large Language…

Information Retrieval · Computer Science 2024-12-19 Hossein A. Rahmani , Emine Yilmaz , Nick Craswell , Bhaskar Mitra

Streaming services have reshaped how we discover and engage with digital entertainment. Despite these advancements, effectively understanding the wide spectrum of user search queries continues to pose a significant challenge. An accurate…

Information Retrieval · Computer Science 2024-09-16 Farnoosh Javadi , Phanideep Gampa , Alyssa Woo , Xingxing Geng , Hang Zhang , Jose Sepulveda , Belhassen Bayar , Fei Wang

Existing sequential recommendation models, even advanced diffusion-based approaches, often struggle to capture the rich semantic intent underlying user behavior, especially for new users or long-tail items. This limitation stems from their…

Information Retrieval · Computer Science 2026-01-08 Bo-Chian Chen , Manel Slokom

Ensuring the products displayed in e-commerce search results are relevant to users queries is crucial for improving the user experience. With their advanced semantic understanding, deep learning models have been widely used for relevance…

Information Retrieval · Computer Science 2025-05-13 Hongwei Shang , Nguyen Vo , Nitin Yadav , Tian Zhang , Ajit Puthenputhussery , Xunfan Cai , Shuyi Chen , Prijith Chandran , Changsung Kang

We present LLaTTE (LLM-Style Latent Transformers for Temporal Events), a scalable transformer architecture for production ads recommendation. Through systematic experiments, we demonstrate that sequence modeling in recommendation systems…

Large Language Model (LLM) has transformative potential in various domains, including recommender systems (RS). There have been a handful of research that focuses on empowering the RS by LLM. However, previous efforts mainly focus on LLM as…

Information Retrieval · Computer Science 2025-03-11 Qidong Liu , Xiangyu Zhao , Yuhao Wang , Yejing Wang , Zijian Zhang , Yuqi Sun , Xiang Li , Maolin Wang , Pengyue Jia , Chong Chen , Wei Huang , Feng Tian

Large Language Models (LLMs) are versatile and demonstrate impressive generalization ability by mining and learning information from extensive unlabeled text. However, they still exhibit reasoning mistakes, often stemming from knowledge…

Computation and Language · Computer Science 2024-08-22 Kai Xiong , Xiao Ding , Li Du , Jiahao Ying , Ting Liu , Bing Qin , Yixin Cao

Personalized news recommendation systems often struggle to effectively capture the complexity of user preferences, as they rely heavily on shallow representations, such as article titles and abstracts. To address this problem, we introduce…

Information Retrieval · Computer Science 2025-04-30 Hai-Dang Kieu , Delvin Ce Zhang , Minh Duc Nguyen , Min Xu , Qiang Wu , Dung D. Le

User queries in e-commerce search are often vague, short, and underspecified, making it difficult for retrieval systems to match them accurately against structured product catalogs. This challenge is amplified by the one-to-many nature of…

Information Retrieval · Computer Science 2025-09-11 Yipeng Zhang , Bowen Liu , Xiaoshuang Zhang , Aritra Mandal , Canran Xu , Zhe Wu

Recommendation systems are widely used in e-commerce websites and online platforms to address information overload. However, existing systems primarily rely on historical data and user feedback, making it difficult to capture user intent…

Information Retrieval · Computer Science 2024-02-22 Qian Zhao , Hao Qian , Ziqi Liu , Gong-Duo Zhang , Lihong Gu

Talent search is a cornerstone of modern recruitment systems, yet existing approaches often struggle to capture nuanced job-specific preferences, model recruiter behavior at a fine-grained level, and mitigate noise from subjective human…

Information Retrieval · Computer Science 2025-12-02 Jihang Li , Bing Xu , Zulong Chen , Chuanfei Xu , Minping Chen , Suyu Liu , Ying Zhou , Zeyi Wen

LLMs have demonstrated impressive performance across various language tasks. However, the strengths of LLMs can vary due to different architectures, model sizes, areas of training data, etc. Therefore, ensemble reasoning for the strengths…

Artificial Intelligence · Computer Science 2025-10-01 Jinwu Hu , Yufeng Wang , Shuhai Zhang , Kai Zhou , Guohao Chen , Yu Hu , Bin Xiao , Mingkui Tan

Large Language Models (LLMs) have recently garnered significant attention in various domains, including recommendation systems. Recent research leverages the capabilities of LLMs to improve the performance and user modeling aspects of…

Information Retrieval · Computer Science 2024-11-05 Lei Chen , Chen Gao , Xiaoyi Du , Hengliang Luo , Depeng Jin , Yong Li , Meng Wang

This study deeply explores the application of large language model (LLM) in personalized recommendation system of e-commerce. Aiming at the limitations of traditional recommendation algorithms in processing large-scale and multi-dimensional…

Information Retrieval · Computer Science 2024-10-18 Wei Xu , Jue Xiao , Jianlong Chen

Dividing ads ranking system into retrieval, early, and final stages is a common practice in large scale ads recommendation to balance the efficiency and accuracy. The early stage ranking often uses efficient models to generate candidates…

Information Retrieval · Computer Science 2023-07-24 Xuewei Wang , Qiang Jin , Shengyu Huang , Min Zhang , Xi Liu , Zhengli Zhao , Yukun Chen , Zhengyu Zhang , Jiyan Yang , Ellie Wen , Sagar Chordia , Wenlin Chen , Qin Huang

As software grows in complexity to accommodate diverse features and platforms, software bloating has emerged as a significant challenge, adversely affecting performance and security. However, existing approaches inadequately address the…

Software Engineering · Computer Science 2025-03-13 Bo Lin , Shangwen Wang , Yihao Qin , Liqian Chen , Xiaoguang Mao

As e-commerce platforms expand their product catalogs, accurately recommending long-tail items becomes increasingly important for enhancing both user experience and platform revenue. A key challenge is the long-tail problem, where extreme…

Information Retrieval · Computer Science 2025-06-10 Qingyi Lu , Haotian Lyu , Jiayun Zheng , Yang Wang , Li Zhang , Chengrui Zhou

Recent attempts to integrate large language models (LLMs) into recommender systems have gained momentum, but most remain limited to simple text generation or static prompt-based inference, failing to capture the complexity of user…

Information Retrieval · Computer Science 2025-10-16 Jiin Park , Misuk Kim

While recent advancements in aligning Large Language Models (LLMs) with recommendation tasks have shown great potential and promising performance overall, these aligned recommendation LLMs still face challenges in complex scenarios. This is…

Information Retrieval · Computer Science 2025-02-18 Yi Fang , Wenjie Wang , Yang Zhang , Fengbin Zhu , Qifan Wang , Fuli Feng , Xiangnan He

Reranking is a critical component in recommender systems, playing an essential role in refining the output of recommendation algorithms. Traditional reranking models have focused predominantly on accuracy, but modern applications demand…

Information Retrieval · Computer Science 2025-02-04 Jingtong Gao , Bo Chen , Weiwen Liu , Xiangyang Li , Yichao Wang , Wanyu Wang , Huifeng Guo , Ruiming Tang , Xiangyu Zhao