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Behavior prediction based on historical behavioral data have practical real-world significance. It has been applied in recommendation, predicting academic performance, etc. With the refinement of user data description, the development of…

Machine Learning · Computer Science 2023-09-27 Haobing Liu , Yanmin Zhu , Chunyang Wang , Jianyu Ding , Jiadi Yu , Feilong Tang

Tabular data underpins decisions across science, industry, and public services. Despite rapid progress, advances in deep learning have not fully carried over to the tabular domain, where gradient-boosted decision trees (GBDTs) remain a…

Machine Learning · Computer Science 2025-11-21 David Bonet , Marçal Comajoan Cara , Alvaro Calafell , Daniel Mas Montserrat , Alexander G. Ioannidis

Recent advancements in large language models (LLMs) have catalyzed a substantial surge in demand for LLM services. While traditional cloud-based LLM services satisfy high-accuracy requirements, they fall short in meeting critical demands…

Machine Learning · Computer Science 2025-03-26 Zuan Xie , Yang Xu , Hongli Xu , Yunming Liao , Zhiwei Yao

Training Long-Context Large Language Models (LLMs) is challenging, as hybrid training with long-context and short-context data often leads to workload imbalances. Existing works mainly use data packing to alleviate this issue, but fail to…

Machine Learning · Computer Science 2025-10-14 Yongqiang Yao , Jingru Tan , Kaihuan Liang , Feizhao Zhang , Jiahao Hu , Shuo Wu , Yazhe Niu , Ruihao Gong , Dahua Lin , Ningyi Xu

Large Language Models (LLMs) have recently emerged as promising tools for recommendation thanks to their advanced textual understanding ability and context-awareness. Despite the current practice of training and evaluating LLM-based…

Information Retrieval · Computer Science 2025-06-12 Sein Kim , Hongseok Kang , Kibum Kim , Jiwan Kim , Donghyun Kim , Minchul Yang , Kwangjin Oh , Julian McAuley , Chanyoung Park

Modern techniques in Content-based Recommendation (CBR) leverage item content information to provide personalized services to users, but suffer from resource-intensive training on large datasets. To address this issue, we explore the…

Information Retrieval · Computer Science 2025-02-11 Jiahao Wu , Qijiong Liu , Hengchang Hu , Wenqi Fan , Shengcai Liu , Qing Li , Xiao-Ming Wu , Ke Tang

Hierarchical Text Classification (HTC) aims to assign texts to structured label hierarchies; however, it faces challenges due to data scarcity and model complexity. This study explores the feasibility of using black box Large Language…

Computation and Language · Computer Science 2025-08-07 Kosuke Yoshimura , Hisashi Kashima

Large Language Models (LLMs) have emerged as powerful tools in artificial intelligence, especially in complex decision-making scenarios, but their static problem-solving strategies often limit their adaptability to dynamic environments. We…

Computation and Language · Computer Science 2025-02-18 Chengkun Cai , Xu Zhao , Yucheng Du , Haoliang Liu , Lei Li

Cross-document relation extraction (RE) aims to identify relations between the head and tail entities located in different documents. Existing approaches typically adopt the paradigm of ``\textit{Small Language Model (SLM) + Classifier}''.…

Computation and Language · Computer Science 2026-04-21 Guoqi Ma , Liang Zhang , Hongyao Tu , Hao Fu , Hui Li , Yujie Lin , Longyue Wang , Weihua Luo , Jinsong Su

Active search is the process of identifying high-value data points in a large and often high-dimensional parameter space that can be expensive to evaluate. Traditional active search techniques like Bayesian optimization trade off…

Machine Learning · Computer Science 2020-07-21 Vivek Myers , Peyton Greenside

There has been a surge in the use of large language models (LLM) conversational agents to generate responses based on long-term history from multiple sessions. However, existing long-term open-domain dialogue datasets lack complex,…

Computation and Language · Computer Science 2025-03-11 Xintong Li , Jalend Bantupalli , Ria Dharmani , Yuwei Zhang , Jingbo Shang

Despite the recent broad adoption of Large Language Models (LLMs) across various domains, their potential for enriching information systems in extracting and exploring Linked Data (LD) and Resource Description Framework (RDF) triplestores…

Information Retrieval · Computer Science 2024-09-25 Omar Mussa , Omer Rana , Benoît Goossens , Pablo Orozco-Terwengel , Charith Perera

Large Language Models (LLMs) empower recommendation systems through their advanced reasoning and planning capabilities. However, the dynamic nature of user interests and content poses a significant challenge: While initial fine-tuning…

Information Retrieval · Computer Science 2025-10-24 Changping Meng , Hongyi Ling , Jianling Wang , Yifan Liu , Shuzhou Zhang , Dapeng Hong , Mingyan Gao , Onkar Dalal , Ed Chi , Lichan Hong , Haokai Lu , Ningren Han

Large language models (LLMs) are essential tools that users employ across various scenarios, so evaluating their performance and guiding users in selecting the suitable service is important. Although many benchmarks exist, they mainly focus…

Computation and Language · Computer Science 2024-09-23 Jiayin Wang , Fengran Mo , Weizhi Ma , Peijie Sun , Min Zhang , Jian-Yun Nie

Deploying large language models (LLMs) encounters challenges due to intensive computational and memory requirements. Our research examines vocabulary trimming (VT) inspired by restricting embedding entries to the language of interest to…

Computation and Language · Computer Science 2024-04-30 Nikolay Bogoychev , Pinzhen Chen , Barry Haddow , Alexandra Birch

Lifelong learning has recently attracted attention in building machine learning systems that continually accumulate and transfer knowledge to help future learning. Unsupervised topic modeling has been popularly used to discover topics from…

Computation and Language · Computer Science 2023-06-28 Pankaj Gupta , Yatin Chaudhary , Thomas Runkler , Hinrich Schütze

The proliferation of social network data has unlocked unprecedented opportunities for extensive, data-driven exploration of human behavior. The structural intricacies of social networks offer insights into various computational social…

Social and Information Networks · Computer Science 2024-01-03 Julie Jiang , Emilio Ferrara

Recent progress in robotics and embodied AI is largely driven by Large Multimodal Models (LMMs). However, a key challenge remains underexplored: how can we advance LMMs to discover tasks that assist humans in open-future scenarios, where…

Computer Vision and Pattern Recognition · Computer Science 2025-12-18 Zijian Song , Xiaoxin Lin , Tao Pu , Zhenlong Yuan , Guangrun Wang , Liang Lin

High-utility sequential pattern mining is an emerging topic in the field of Knowledge Discovery in Databases. It consists of discovering subsequences having a high utility (importance) in sequences, referred to as high-utility sequential…

Recommender systems have rapidly evolved and become integral to many online services. However, existing systems sometimes produce unstable and unsatisfactory recommendations that fail to align with users' fundamental and long-term…

Information Retrieval · Computer Science 2025-05-05 Lijian Chen , Wei Yuan , Tong Chen , Xiangyu Zhao , Nguyen Quoc Viet Hung , Hongzhi Yin