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Constructing domain-specific knowledge graphs from unstructured text remains challenging due to heterogeneous entity mentions, long-tail relation distributions, and the absence of standardized schemas. We present LEC-KG, a bidirectional…

计算与语言 · 计算机科学 2026-03-02 Yikai Zeng , Yingchao Piao , Changhua Pei , Jianhui Li

Multimodal Knowledge Graphs (MMKGs), which represent explicit knowledge across multiple modalities, play a pivotal role by complementing the implicit knowledge of Multimodal Large Language Models (MLLMs) and enabling more grounded reasoning…

计算与语言 · 计算机科学 2025-09-29 Hyeongcheol Park , Jiyoung Seo , MinHyuk Jang , Hogun Park , Ha Dam Baek , Gyusam Chang , Hyeonsoo Im , Sangpil Kim

Extraction of missing attribute values is to find values describing an attribute of interest from a free text input. Most past related work on extraction of missing attribute values work with a closed world assumption with the possible set…

计算与语言 · 计算机科学 2018-10-09 Guineng Zheng , Subhabrata Mukherjee , Xin Luna Dong , Feifei Li

Retrieval-Augmented Generation (RAG) has emerged as an effective paradigm for expanding the knowledge capacity of Multimodal Large Language Models (MLLMs) by incorporating external knowledge sources into the generation process, and has been…

计算机视觉与模式识别 · 计算机科学 2026-04-28 Xu Yuan , Liangbo Ning , Qingqing Ye , Wenqi Fan , Qing Li

Large language models (LLMs) have made significant progress in general-purpose natural language processing tasks. However, LLMs are still facing challenges when applied to domain-specific areas like telecommunications, which demands…

计算与语言 · 计算机科学 2025-05-22 Dun Yuan , Hao Zhou , Di Wu , Xue Liu , Hao Chen , Yan Xin , Jianzhong , Zhang

Web and artificial intelligence technologies, especially semantic web and knowledge graph (KG), have recently raised significant attention in educational scenarios. Nevertheless, subject-specific KGs for K-12 education still lack…

计算与语言 · 计算机科学 2022-10-25 Bowen Zhao , Jiuding Sun , Bin Xu , Xingyu Lu , Yuchen Li , Jifan Yu , Minghui Liu , Tingjian Zhang , Qiuyang Chen , Hanming Li , Lei Hou , Juanzi Li

The rapid evolution of communication technologies has led to an explosion of standards, rendering traditional expert-dependent consultation methods inefficient and slow. To address this challenge, we propose \textbf{KG2QA}, a question…

计算与语言 · 计算机科学 2025-10-16 Zhongze Luo , Weixuan Wan , Tianya Zhang , Dan Wang , Xiaoying Tang

In recent years, knowledge graphs have been widely applied as a uniform way to organize data and have enhanced many tasks requiring knowledge. In online shopping platform Taobao, we built a billion-scale e-commerce product knowledge graph.…

人工智能 · 计算机科学 2022-03-03 Wen Zhang , Chi-Man Wong , Ganqinag Ye , Bo Wen , Hongting Zhou , Wei Zhang , Huajun Chen

Across the financial domain, researchers answer complex questions by extensively "searching" for relevant information to generate long-form reports. This workshop paper discusses automating the construction of query-specific document and…

信息检索 · 计算机科学 2022-11-09 Iain Mackie , Jeffrey Dalton

The recently developed retrieval-augmented generation (RAG) technology has enabled the efficient construction of domain-specific applications. However, it also has limitations, including the gap between vector similarity and the relevance…

Current large language models (LLMs) excel at general NLP tasks but often lack domain specific precision in professional settings. Building a high quality domain specific multi turn dialogue dataset is essential for developing specialized…

人工智能 · 计算机科学 2025-08-05 Yuanyuan Liang , Xiaoman Wang , Tingyu Xie , Lei Pan

Failure mode and effects analysis (FMEA) is an essential tool for mitigating potential failures, particularly during the ramp-up phases of new products. However, its effectiveness is often limited by the reasoning capabilities of the FMEA…

信息检索 · 计算机科学 2025-04-01 Lukas Bahr , Christoph Wehner , Judith Wewerka , José Bittencourt , Ute Schmid , Rüdiger Daub

Data protection and privacy is becoming increasingly crucial in the digital era. Numerous companies depend on third-party vendors and service providers to carry out critical functions within their operations, encompassing tasks such as data…

密码学与安全 · 计算机科学 2025-08-25 Leon Garza , Lavanya Elluri , Anantaa Kotal , Aritran Piplai , Deepti Gupta , Anupam Joshi

Advancing AI systems in scientific domains like physics, materials science, and engineering calls for reasoning over complex, multi-physics phenomena while respecting governing principles. Although Large Language Models (LLMs) and existing…

人工智能 · 计算机科学 2025-08-27 Nitin Nagesh Kulkarni , Bryson Wilcox , Max Sawa , Jason Thom

The knowledge graph(KG) composed of entities with their descriptions and attributes, and relationship between entities, is finding more and more application scenarios in various natural language processing tasks. In a typical knowledge…

计算与语言 · 计算机科学 2018-10-15 Shengjie Sun , Dong Yang , Hongchun Zhang , Yanxu Chen , Chao Wei , Xiaonan Meng , Yi Hu

Knowledge graph question answering (KGQA) presents significant challenges due to the structural and semantic variations across input graphs. Existing works rely on Large Language Model (LLM) agents for graph traversal and retrieval; an…

Existing language learning tools, even those powered by Large Language Models (LLMs), often lack support for polyglot learners to build linguistic connections across vocabularies in multiple languages, provide limited customization for…

计算与语言 · 计算机科学 2025-07-03 Kenan Tang , Yanhong Li , Yao Qin

We introduce CoDe-KG, an open-source, end-to-end pipeline for extracting sentence-level knowledge graphs by combining robust coreference resolution with syntactic sentence decomposition. Using our model, we contribute a dataset of over…

Knowledge Graphs (KGs) have shown great success in recommendation. This is attributed to the rich attribute information contained in KG to improve item and user representations as side information. However, existing knowledge-aware methods…

信息检索 · 计算机科学 2021-12-20 Zepeng Huai , Jianhua Tao , Feihu Che , Guohua Yang , Dawei Zhang

Knowledge Graphs (KGs) store structured factual knowledge by linking entities through relationships, crucial for many applications. These applications depend on the KG's factual accuracy, so verifying facts is essential, yet challenging.…

数据库 · 计算机科学 2026-02-12 Farzad Shami , Stefano Marchesin , Gianmaria Silvello