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A common way to extend the memory of large language models (LLMs) is by retrieval augmented generation (RAG), which inserts text retrieved from a larger memory into an LLM's context window. However, the context window is typically limited…

Computation and Language · Computer Science 2025-02-14 Marc Pickett , Jeremy Hartman , Ayan Kumar Bhowmick , Raquib-ul Alam , Aditya Vempaty

With the growing success of Large Language models (LLMs) in information-seeking scenarios, search engines are now adopting generative approaches to provide answers along with in-line citations as attribution. While existing work focuses…

Information Retrieval · Computer Science 2024-09-13 Hanane Djeddal , Pierre Erbacher , Raouf Toukal , Laure Soulier , Karen Pinel-Sauvagnat , Sophia Katrenko , Lynda Tamine

Sequential Recommender Systems (SRS), which model a user's interaction history to predict the next item of interest, are widely used in various applications. However, existing SRS often struggle with low-popularity items, a challenge known…

Information Retrieval · Computer Science 2024-12-24 Qidong Liu , Xian Wu , Wanyu Wang , Yejing Wang , Yuanshao Zhu , Xiangyu Zhao , Feng Tian , Yefeng Zheng

In this paper, we study an under-explored area of language and vocabulary learning: keyword mnemonics, a technique for memorizing vocabulary through memorable associations with a target word via a verbal cue. Typically, creating verbal cues…

Computation and Language · Computer Science 2024-09-24 Jaewook Lee , Hunter McNichols , Andrew Lan

The recent advancements in generative language models have demonstrated their ability to memorize knowledge from documents and recall knowledge to respond to user queries effectively. Building upon this capability, we propose to enable…

Multimedia · Computer Science 2024-02-19 Yongqi Li , Wenjie Wang , Leigang Qu , Liqiang Nie , Wenjie Li , Tat-Seng Chua

The long-tail recommendation is a challenging task for traditional recommender systems, due to data sparsity and data imbalance issues. The recent development of large language models (LLMs) has shown their abilities in complex reasoning,…

Information Retrieval · Computer Science 2024-03-12 Junda Wu , Cheng-Chun Chang , Tong Yu , Zhankui He , Jianing Wang , Yupeng Hou , Julian McAuley

Large Language Model (LLM) has exhibited strong reasoning ability in text-based contexts across various domains, yet the limitation of context window poses challenges for the model on long-range inference tasks and necessitates a memory…

Information Retrieval · Computer Science 2026-03-11 Mengwei Yuan , Jianan Liu , Jing Yang , Xianyou Li , Weiran Yan , Yichao Wu , Penghao Liang

Large Language Models (LLMs) are smart but forgetful. Recent studies, (e.g., (Bubeck et al., 2023)) on modern LLMs have shown that they are capable of performing amazing tasks typically necessitating human-level intelligence. However,…

Computation and Language · Computer Science 2023-11-08 Eric Melz

Large Language Models (LLMs) based agents excel at diverse tasks, yet they suffer from brittle procedural memory that is manually engineered or entangled in static parameters. In this work, we investigate strategies to endow agents with a…

Computation and Language · Computer Science 2026-04-16 Runnan Fang , Yuan Liang , Xiaobin Wang , Jialong Wu , Shuofei Qiao , Pengjun Xie , Fei Huang , Huajun Chen , Ningyu Zhang

In this paper, we propose active recap learning (ARL), a framework for enhancing large language model (LLM) in understanding long contexts. ARL enables models to revisit and summarize earlier content through targeted sequence construction…

Computation and Language · Computer Science 2026-01-21 Chenyu Hui

Recent studies show that Generative Relevance Feedback (GRF), using text generated by Large Language Models (LLMs), can enhance the effectiveness of query expansion. However, LLMs can generate irrelevant information that harms retrieval…

Information Retrieval · Computer Science 2023-06-19 Iain Mackie , Ivan Sekulic , Shubham Chatterjee , Jeffrey Dalton , Fabio Crestani

Generating high-quality answers consistently by providing contextual information embedded in the prompt passed to the Large Language Model (LLM) is dependent on the quality of information retrieval. As the corpus of contextual information…

Information Retrieval · Computer Science 2024-08-01 Sai Ganesh , Anupam Purwar , Gautam B

Recent agent-based recommendation frameworks aim to simulate user behaviors by incorporating memory mechanisms and prompting strategies, but they struggle with hallucinating non-existent items and full-catalog ranking. Besides, a largely…

Information Retrieval · Computer Science 2026-02-25 Mingdai Yang , Nurendra Choudhary , Jiangshu Du , Edward W. Huang , Philip S. Yu , Karthik Subbian , Danai Koutra

Large Language Models (LLMs) have recently been widely adopted in conversational agents. However, the increasingly long interactions between users and agents accumulate extensive dialogue records, making it difficult for LLMs with limited…

Computation and Language · Computer Science 2025-09-30 Derong Xu , Yi Wen , Pengyue Jia , Yingyi Zhang , wenlin zhang , Yichao Wang , Huifeng Guo , Ruiming Tang , Xiangyu Zhao , Enhong Chen , Tong Xu

In today's assistant landscape, personalisation enhances interactions, fosters long-term relationships, and deepens engagement. However, many systems struggle with retaining user preferences, leading to repetitive user requests and…

Artificial Intelligence · Computer Science 2025-01-17 Johannes Kirmayr , Lukas Stappen , Phillip Schneider , Florian Matthes , Elisabeth André

Recently, large language models (LLMs), such as GPT-4, stand out remarkable conversational abilities, enabling them to engage in dynamic and contextually relevant dialogues across a wide range of topics. However, given a long conversation,…

Computation and Language · Computer Science 2025-08-26 Qingyue Wang , Yanhe Fu , Yanan Cao , Shuai Wang , Zhiliang Tian , Liang Ding

Large Language Models (LLMs) have made significant progress in dialogue, yet redundant memory contexts severely limit their effectiveness in long-term dialogue agents. External memory systems have been proposed to improve memory…

Information Retrieval · Computer Science 2026-05-28 Tan Wang , Yunwei Dong

Open-domain dialogue systems have seen remarkable advancements with the development of large language models (LLMs). Nonetheless, most existing dialogue systems predominantly focus on brief single-session interactions, neglecting the…

Computation and Language · Computer Science 2025-02-14 Hao Li , Chenghao Yang , An Zhang , Yang Deng , Xiang Wang , Tat-Seng Chua

The language generation and reasoning capabilities of large language models (LLMs) have enabled conversational systems with impressive performance in a variety of tasks, from code generation, to composing essays, to passing STEM and legal…

Artificial Intelligence · Computer Science 2025-02-28 Konstantina Christakopoulou , Iris Qu , John Canny , Andrew Goodridge , Cj Adams , Minmin Chen , Maja Matarić

Long-term memory (LTM) is essential for large language models (LLMs) to achieve autonomous intelligence in complex, evolving environments. Despite increasing efforts in memory-augmented and retrieval-based architectures, there remains a…

Computation and Language · Computer Science 2025-06-17 Luanbo Wan , Weizhi Ma