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Knowledge-graph-based reasoning has drawn a lot of attention due to its interpretability. However, previous methods suffer from the incompleteness of the knowledge graph, namely the interested link or entity that can be missing in the…

计算与语言 · 计算机科学 2019-12-06 Yunan Zhang , Xiang Cheng , Heting Gao , Chengxiang Zhai

Knowledge graphs (KGs) play a pivotal role in knowledge-intensive tasks across specialized domains, where the acquisition of precise and dependable knowledge is crucial. However, existing KG construction methods heavily rely on human…

人工智能 · 计算机科学 2024-10-07 Hanzhu Chen , Xu Shen , Qitan Lv , Jie Wang , Xiaoqi Ni , Jieping Ye

Large Language Models (LLMs) have achieved remarkable success but remain data-inefficient, especially when learning from small, specialized corpora with limited and proprietary data. Existing synthetic data generation methods for continue…

计算与语言 · 计算机科学 2025-09-16 Shengjie Ma , Xuhui Jiang , Chengjin Xu , Cehao Yang , Liyu Zhang , Jian Guo

Knowledge-Enhanced Pre-trained Language Models (KEPLMs) improve the performance of various downstream NLP tasks by injecting knowledge facts from large-scale Knowledge Graphs (KGs). However, existing methods for pre-training KEPLMs with…

计算与语言 · 计算机科学 2023-11-14 Ruyao Xu , Taolin Zhang , Chengyu Wang , Zhongjie Duan , Cen Chen , Minghui Qiu , Dawei Cheng , Xiaofeng He , Weining Qian

The rapid advancement of Large Language Models (LLMs) and conversational assistants necessitates dynamic, scalable, and configurable conversational datasets for training and evaluation. These datasets must accommodate diverse user…

计算与语言 · 计算机科学 2024-08-13 Ronak Pradeep , Daniel Lee , Ali Mousavi , Jeff Pound , Yisi Sang , Jimmy Lin , Ihab Ilyas , Saloni Potdar , Mostafa Arefiyan , Yunyao Li

Knowledge Graphs (KGs) are composed of structured information about a particular domain in the form of entities and relations. In addition to the structured information KGs help in facilitating interconnectivity and interoperability between…

人工智能 · 计算机科学 2020-05-15 Genet Asefa Gesese , Russa Biswas , Mehwish Alam , Harald Sack

Knowledge graphs (KGs) often contain various errors. Previous works on detecting errors in KGs mainly rely on triplet embedding from graph structure. We conduct an empirical study and find that these works struggle to discriminate noise…

计算与语言 · 计算机科学 2024-01-17 Xiangyu Liu , Yang Liu , Wei Hu

The state-of-the-art semantic communication (SC) schemes typically rely on end-to-end deep learning frameworks that lack interpretability and struggle with robust semantic selection and reconstruction under noisy conditions. To address this…

信号处理 · 电气工程与系统科学 2025-09-08 Dayu Fan , Rui Meng , Song Gao , Xiaodong Xu

Recent advancements in large language models (LLMs) have significantly improved various natural language processing (NLP) tasks. Typically, LLMs are trained to predict the next token, aligning well with many NLP tasks. However, in knowledge…

计算与语言 · 计算机科学 2025-02-11 Lingbing Guo , Yichi Zhang , Zhongpu Bo , Zhuo Chen , Mengshu Sun , Zhiqiang Zhang , Wen Zhang , Huajun Chen

Entity alignment is the task of finding entities representing the same real-world object in two knowledge graphs(KGs). Cross-lingual knowledge graph entity alignment aims to discover the cross-lingual links in the multi-language KGs, which…

计算与语言 · 计算机科学 2022-05-10 Shanqing Yu , Shihan Zhang , Jianlin Zhang , Jiajun Zhou , Qi Xuan , Bing Li , Xiaojuan Hu

Knowledge Graph Completion (KGC) aims to conduct reasoning on the facts within knowledge graphs and automatically infer missing links. Existing methods can mainly be categorized into structure-based or description-based. On the one hand,…

计算与语言 · 计算机科学 2023-08-17 Jiabang He , Liu Jia , Lei Wang , Xiyao Li , Xing Xu

The current knowledge system of macroeconomics is built on interactions among a small number of variables, since traditional macroeconomic models can mostly handle a handful of inputs. Recent work using big data suggests that a much larger…

综合经济学 · 经济学 2020-10-13 Yucheng Yang , Yue Pang , Guanhua Huang , Weinan E

Knowledge graph completion (KGC) aims to reason over known facts and infer the missing links. Text-based methods such as KGBERT (Yao et al., 2019) learn entity representations from natural language descriptions, and have the potential for…

计算与语言 · 计算机科学 2022-03-07 Liang Wang , Wei Zhao , Zhuoyu Wei , Jingming Liu

Biomedical Knowledge Graphs (BKGs) integrate diverse datasets to elucidate complex relationships within the biomedical field. Effective link prediction on these graphs can uncover valuable connections, such as potential novel drug-disease…

计算与语言 · 计算机科学 2025-07-01 Tien Dang , Viet Thanh Duy Nguyen , Minh Tuan Le , Truong-Son Hy

Retrieval-Augmented Generation (RAG) improves factual accuracy by grounding responses in external knowledge. However, existing RAG methods either rely solely on text corpora and neglect structural knowledge, or build ad-hoc knowledge graphs…

计算与语言 · 计算机科学 2025-10-21 Dingjun Wu , Yukun Yan , Zhenghao Liu , Zhiyuan Liu , Maosong Sun

Traditional methods of linking large language models (LLMs) to knowledge bases via the semantic similarity search often fall short of capturing complex relational dynamics. To address these limitations, we introduce AutoKG, a lightweight…

计算与语言 · 计算机科学 2023-11-28 Bohan Chen , Andrea L. Bertozzi

Knowledge graphs can represent information about the real-world using entities and their relations in a structured and semantically rich manner and they enable a variety of downstream applications such as question-answering, recommendation…

计算与语言 · 计算机科学 2023-05-16 Hanieh Khorashadizadeh , Nandana Mihindukulasooriya , Sanju Tiwari , Jinghua Groppe , Sven Groppe

Pre-trained Language Models (PTLMs) have been shown to perform well on natural language tasks. Many prior works have leveraged structured commonsense present in the form of entities linked through labeled relations in Knowledge Graphs (KGs)…

计算与语言 · 计算机科学 2022-06-20 Rachit Bansal , Milan Aggarwal , Sumit Bhatia , Jivat Neet Kaur , Balaji Krishnamurthy

Knowledge Graphs (KG) are the backbone of many data-intensive applications since they can represent data coupled with its meaning and context. Aligning KGs across different domains and providers is necessary to afford a fuller and…

人工智能 · 计算机科学 2023-10-12 Pedro Giesteira Cotovio , Ernesto Jimenez-Ruiz , Catia Pesquita

Existing pre-trained models for knowledge-graph-to-text (KG-to-text) generation simply fine-tune text-to-text pre-trained models such as BART or T5 on KG-to-text datasets, which largely ignore the graph structure during encoding and lack…

计算与语言 · 计算机科学 2021-06-22 Pei Ke , Haozhe Ji , Yu Ran , Xin Cui , Liwei Wang , Linfeng Song , Xiaoyan Zhu , Minlie Huang