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Long-term conversational agents need memory systems that capture relationships between events, not merely isolated facts, to support temporal reasoning and multi-hop question answering. Current approaches face a fundamental trade-off: flat…

计算与语言 · 计算机科学 2026-04-24 Buqiang Xu , Yijun Chen , Jizhan Fang , Ruobin Zhong , Yunzhi Yao , Yuqi Zhu , Lun Du , Shumin Deng

Large Language Models (LLMs) face limitations due to the high demand on GPU memory and computational resources when handling long contexts. While sparsify the Key-Value (KV) cache of transformer model is a typical strategy to alleviate…

机器学习 · 计算机科学 2024-02-06 Yumeng Wang , Zhenyang Xiao

Reliably counting and generating sequences of items remain a significant challenge for neural networks, including Large Language Models (LLMs). Indeed, although this capability is readily handled by rule-based symbolic systems based on…

人工智能 · 计算机科学 2026-01-14 Kuinan Hou , Marco Zorzi , Alberto Testolin

Multi-Criteria Decision Making~(MCDM) is widely applied in various fields, using quantitative and qualitative analyses of multiple levels and attributes to support decision makers in making scientific and rational decisions in complex…

人工智能 · 计算机科学 2025-02-25 Hui Wang , Fafa Zhang , Chaoxu Mu

A high-performance algorithm for searching for frequent patterns (FPs) in transactional databases is presented. The search for FPs is carried out by using an iterative sieve algorithm by computing the set of enclosed cycles. In each inner…

数据库 · 计算机科学 2007-05-23 Gennady P. Berman , Vyacheslav N. Gorshkov , Edward P. MacKerrow , Xidi Wang

The applications of large language models (LLMs) have been widely spread across all domains. However, the basic abilities such as the controllability of LLMs are still limited. To address this, we propose "Self-controller", a novel agentic…

计算与语言 · 计算机科学 2024-10-02 Xiao Peng , Xufan Geng

Traditional knowledge graph completion (KGC) methods rely solely on structural information and struggle with sparsity, while Large Language Models (LLMs) address these limitations through rich world knowledge and strong context modeling.…

计算与语言 · 计算机科学 2026-01-30 Bo Xue , Yi Xu , Bolei Ma , Yunchong Song , Jiaxin Ding , Luoyi Fu , Xinbing Wang

We focus on the continual learning problem where the tasks arrive sequentially and the aim is to perform well on the newly arrived task without performance degradation on the previously seen tasks. In contrast to the continual learning…

机器学习 · 统计学 2023-12-06 Martin Hellkvist , Ayça Özçelikkale , Anders Ahlén

Large Language Models (LLMs) often generate unnecessarily verbose Chain-of-Thought (CoT) reasoning that increases computational costs and latency without proportional performance gains. In this paper, we propose Fine-grained Group policy…

机器学习 · 计算机科学 2026-03-12 Xinchen Han , Hossam Afifi , Michel Marot , Xilu Wang , Lu Yin

Latent Class Analysis (LCA) is widely used to identify unobserved subgroups in social and behavioural sciences. A long-standing challenge for LCA is the interpretability of the latent classes, due to the high complexity of the estimated…

统计方法学 · 统计学 2026-05-20 Yuxuan Xu , Lea Kaufmann , Yunxiao Chen , Maria Kateri , Irini Moustaki

While Large Language Models (LLMs) excel in general domains, their reliability often falls short in scientific problem-solving. The advancement of scientific AI depends on large-scale, high-quality corpora. However, existing scientific…

计算与语言 · 计算机科学 2025-10-03 You-Le Fang , Dong-Shan Jian , Xiang Li , Ce Meng , Ling-Shi Meng , Chen-Xu Yan , Zhi-Zhang Bian , Yan-Qing Ma

This paper proposes a frequent itemset mining algorithm based on the Boolean matrix method, aiming to solve the storage and computational bottlenecks of traditional frequent pattern mining algorithms in high-dimensional and large-scale…

数据库 · 计算机科学 2024-12-30 Xuan Li , Tingyi Ruan , Yankaiqi Li , Quanchao Lu , Xiaoxuan Sun

In the paper a new approach to data representation and manipulation is described, which is called the concept-oriented data model (CODM). It is supposed that items represent data units, which are stored in concepts. A concept is a…

数据库 · 计算机科学 2008-01-03 Alexandr Savinov

It is generally well agreed that developing a unifying theory is one of the most important issues in Data Mining research. In the last two decades, a great deal of work has been devoted to the algorithmic aspects of the Frequent Itemset…

数据库 · 计算机科学 2020-01-28 Slimane Oulad-Naoui , Hadda Cherroun , Djelloul Ziadi

Growing concerns about climate change and sustainability are driving manufacturers to take significant steps toward reducing their carbon footprints. For these manufacturers, a first step towards this goal is to identify the environmental…

计算与语言 · 计算机科学 2025-02-12 Steffen Castle , Julian Moreno Schneider , Leonhard Hennig , Georg Rehm

Collaborative filtering (CF) is the key technique for recommender systems. Pure CF approaches exploit the user-item interaction data (e.g., clicks, likes, and views) only and suffer from the sparsity issue. Items are usually associated with…

信息检索 · 计算机科学 2020-10-19 Guangneng Hu , Yu Zhang , Qiang Yang

Large Multimodal Models (LMMs) have achieved remarkable success across various visual-language tasks. However, existing benchmarks predominantly focus on single-image understanding, leaving the analysis of image sequences largely…

Although spatial information of images usually enhance the robustness of the Fuzzy C-Means (FCM) algorithm, it greatly increases the computational costs for image segmentation. To achieve a sound trade-off between the segmentation…

计算机视觉与模式识别 · 计算机科学 2020-07-02 Cong Wang , Witold Pedrycz , ZhiWu Li , MengChu Zhou

This paper introduces LMFAO (Layered Multiple Functional Aggregate Optimization), an in-memory optimization and execution engine for batches of aggregates over the input database. The primary motivation for this work stems from the…

数据库 · 计算机科学 2019-06-21 Maximilian Schleich , Dan Olteanu , Mahmoud Abo Khamis , Hung Q. Ngo , XuanLong Nguyen

Logic of Behaviour in Context (LBC) is a spatio-temporal logic for expressing properties of continuous-state processes, such as biochemical reaction networks. LBC builds on the existing Metric Interval Temporal Logic (MITL) and adds a…

计算机科学中的逻辑 · 计算机科学 2017-02-13 Christopher J. Banks , Ian Stark