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Large Language Models (LLMs) have shown prominent performance in various downstream tasks and prompt engineering plays a pivotal role in optimizing LLMs' performance. This paper, not only as an overview of current prompt engineering…

Computation and Language · Computer Science 2024-09-18 Haochen Li , Jonathan Leung , Zhiqi Shen

LLM recommendation agents increasingly produce structured recommendation reports: sets of items accompanied by natural-language justifications. Yet existing evaluations often reduce this setting to reranking small shortlisted candidate sets…

Information Retrieval · Computer Science 2026-05-20 Imad Aouali , Flavian Vasile , Otmane Sakhi , Alexandre Gilotte , Benjamin Heymann

Large Language Models (LLMs) have emerged as transformative tools for natural language understanding and user intent resolution, enabling tasks such as translation, summarization, and, increasingly, the orchestration of complex workflows.…

Software Engineering · Computer Science 2025-11-12 Justus Flerlage , Alexander Acker , Odej Kao

The extensive world knowledge and powerful reasoning capabilities of large language models (LLMs) have attracted significant attention in recommendation systems (RS). Specifically, The chain of thought (CoT) has been shown to improve the…

Information Retrieval · Computer Science 2025-08-22 Yu Xia , Rui Zhong , Zeyu Song , Wei Yang , Junchen Wan , Qingpeng Cai , Chi Lu , Peng Jiang

Agentic recommender systems leverage Large Language Models (LLMs) to model complex user behaviors and support personalized decision-making. However, existing methods primarily model preference changes based on explicit user-item…

Artificial Intelligence · Computer Science 2026-01-30 Bingqian Li , Xiaolei Wang , Junyi Li , Weitao Li , Long Zhang , Sheng Chen , Wayne Xin Zhao , Ji-Rong Wen

Context: User intent modeling is a crucial process in Natural Language Processing that aims to identify the underlying purpose behind a user's request, enabling personalized responses. With a vast array of approaches introduced in the…

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

Using Large Language Models (LLMs) to generate semantic features has been demonstrated as a powerful paradigm for enhancing Sequential Recommender Systems (SRS). This typically involves three stages: processing item text, extracting…

Information Retrieval · Computer Science 2026-01-29 Kainan Shi , Peilin Zhou , Ge Wang , Han Ding , Fei Wang

Accurately modeling user preferences is crucial for improving the performance of content-based recommender systems. Existing approaches often rely on simplistic user profiling methods, such as averaging or concatenating item embeddings,…

Information Retrieval · Computer Science 2025-08-13 Milad Sabouri , Masoud Mansoury , Kun Lin , Bamshad Mobasher

Any organization needs to improve their products, services, and processes. In this context, engaging with customers and understanding their journey is essential. Organizations have leveraged various techniques and technologies to support…

Computation and Language · Computer Science 2022-12-08 Sahar Moradizeyveh

Rising environmental awareness in e-commerce necessitates recommender systems that not only guide users to sustainable products but also minimize their own digital carbon footprints. Traditional session-based systems, optimized for…

Multiagent Systems · Computer Science 2026-03-12 Hao N. Nguyen , Hieu M. Nguyen , Son Van Nguyen , Nguyen Thi Hanh

Collaborative information from user-item interactions is a fundamental source of signal in successful recommender systems. Recently, researchers have attempted to incorporate this knowledge into large language model-based recommender…

Information Retrieval · Computer Science 2026-03-24 Shahrooz Pouryousef , Ali Montazeralghaem

Recommender systems (RecSys) have become critical tools for enhancing user engagement by delivering personalized content across diverse digital platforms. Recent advancements in large language models (LLMs) demonstrate significant potential…

Information Retrieval · Computer Science 2025-10-16 Yi Zhang , Lili Xie , Ruihong Qiu , Jiajun Liu , Sen Wang

In recent research advancements within the community, large language models (LLMs) have sparked great interest in creating autonomous agents. However, current prompt-based agents often heavily rely on large-scale LLMs. Meanwhile, although…

Computation and Language · Computer Science 2025-03-04 Xueyang Feng , Bo Lan , Quanyu Dai , Lei Wang , Jiakai Tang , Xu Chen , Zhenhua Dong , Ji-Rong Wen

Effective prompt engineering is critical to realizing the promised productivity gains of large language models (LLMs) in knowledge-intensive tasks. Yet, many users struggle to craft prompts that yield high-quality outputs, limiting the…

Human-Computer Interaction · Computer Science 2025-10-02 Niklas Gutheil , Valentin Mayer , Leopold Müller , Jörg Rommelt , Niklas Kühl

The new kind of Agent-oriented information system, exemplified by GPTs, urges us to inspect the information system infrastructure to support Agent-level information processing and to adapt to the characteristics of Large Language Model…

Information Retrieval · Computer Science 2024-03-06 Jizhi Zhang , Keqin Bao , Wenjie Wang , Yang Zhang , Wentao Shi , Wanhong Xu , Fuli Feng , Tat-Seng Chua

Recently, substantial research has been conducted on sequential recommendation, with the objective of forecasting the subsequent item by leveraging a user's historical sequence of interacted items. Prior studies employ both capsule networks…

Information Retrieval · Computer Science 2025-05-01 Zhikai Wang , Yanyan Shen

The integration of Large Language Model (LLM) agents is transforming recommender systems from simple query-item matching towards deeply personalized and interactive recommendations. Reinforcement Learning (RL) provides an essential…

Recent advancements in autoregressive Large Language Models (LLMs) have achieved significant milestones, largely attributed to their scalability, often referred to as the "scaling law". Inspired by these achievements, there has been a…

Information Retrieval · Computer Science 2026-01-26 Bencheng Yan , Shilei Liu , Zhiyuan Zeng , Zihao Wang , Yizhen Zhang , Yujin Yuan , Langming Liu , Jiaqi Liu , Di Wang , Wenbo Su , Wang Pengjie , Jian Xu , Bo Zheng

Large Language Models (LLMs) have been integrated into recommender systems to enhance user behavior comprehension. The Retrieval Augmented Generation (RAG) technique is further incorporated into these systems to retrieve more relevant items…

Information Retrieval · Computer Science 2025-03-27 Sichun Luo , Jian Xu , Xiaojie Zhang , Linrong Wang , Sicong Liu , Hanxu Hou , Linqi Song