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Although Large Language Models (LLMs) exhibit remarkable adaptability across domains, these models often fall short in structured knowledge extraction tasks such as named entity recognition (NER). This paper explores an innovative,…

计算与语言 · 计算机科学 2024-06-11 Yuzhao Heng , Chunyuan Deng , Yitong Li , Yue Yu , Yinghao Li , Rongzhi Zhang , Chao Zhang

Entity Typing (ET) is the process of identifying the semantic types of every entity within a corpus. In contrast to Named Entity Recognition, where each token in a sentence is labelled with zero or one class label, ET involves labelling…

计算与语言 · 计算机科学 2020-03-24 Michael Stewart , Wei Liu

The meaning of a word often varies depending on its usage in different domains. The standard word embedding models struggle to represent this variation, as they learn a single global representation for a word. We propose a method to learn…

计算与语言 · 计算机科学 2019-10-22 Lahari Poddar , Gyorgy Szarvas , Lea Frermann

This paper contributes a joint embedding model for predicting relations between a pair of entities in the scenario of relation inference. It differs from most stand-alone approaches which separately operate on either knowledge bases or free…

计算与语言 · 计算机科学 2015-07-08 Miao Fan , Kai Cao , Yifan He , Ralph Grishman

In this paper we propose to learn a multimodal image and text embedding from Web and Social Media data, aiming to leverage the semantic knowledge learnt in the text domain and transfer it to a visual model for semantic image retrieval. We…

计算机视觉与模式识别 · 计算机科学 2018-08-21 Raul Gomez , Lluis Gomez , Jaume Gibert , Dimosthenis Karatzas

Interpretability and explainability of neural networks is continuously increasing in importance, especially within safety-critical domains and to provide the social right to explanation. Concept based explanations align well with how humans…

机器学习 · 计算机科学 2023-09-11 Rishabh Jain

Named entity recognition (NER) models are typically based on the architecture of Bi-directional LSTM (BiLSTM). The constraints of sequential nature and the modeling of single input prevent the full utilization of global information from…

计算与语言 · 计算机科学 2019-11-20 Ying Luo , Fengshun Xiao , Hai Zhao

We present a novel end-to-end reinforcement learning approach to automatic taxonomy induction from a set of terms. While prior methods treat the problem as a two-phase task (i.e., detecting hypernymy pairs followed by organizing these pairs…

计算与语言 · 计算机科学 2018-05-14 Yuning Mao , Xiang Ren , Jiaming Shen , Xiaotao Gu , Jiawei Han

We propose a novel graph-based approach for constructing concept hierarchy from a large text corpus. Our algorithm, GraBTax, incorporates both statistical co-occurrences and lexical similarity in optimizing the structure of the taxonomy. To…

信息检索 · 计算机科学 2014-04-30 Pucktada Treeratpituk , Madian Khabsa , C. Lee Giles

The rapid evolution of scientific fields introduces challenges in organizing and retrieving scientific literature. While expert-curated taxonomies have traditionally addressed this need, the process is time-consuming and expensive.…

计算与语言 · 计算机科学 2025-06-13 Priyanka Kargupta , Nan Zhang , Yunyi Zhang , Rui Zhang , Prasenjit Mitra , Jiawei Han

Most weakly supervised named entity recognition (NER) models rely on domain-specific dictionaries provided by experts. This approach is infeasible in many domains where dictionaries do not exist. While a phrase retrieval model was used to…

计算与语言 · 计算机科学 2023-06-02 Hyunjae Kim , Jaehyo Yoo , Seunghyun Yoon , Jaewoo Kang

Recognizing entity synonyms from text has become a crucial task in many entity-leveraging applications. However, discovering entity synonyms from domain-specific text corpora (e.g., news articles, scientific papers) is rather challenging.…

计算与语言 · 计算机科学 2017-06-27 Meng Qu , Xiang Ren , Jiawei Han

Tabular data in relational databases represents a significant portion of industrial data. Hence, analyzing and interpreting tabular data is of utmost importance. Application tasks on tabular data are manifold and are often not specified…

机器学习 · 计算机科学 2025-07-09 Astrid Franz , Frederik Hoppe , Marianne Michaelis , Udo Göbel

This paper addresses the problem of corpus-level entity typing, i.e., inferring from a large corpus that an entity is a member of a class such as "food" or "artist". The application of entity typing we are interested in is knowledge base…

计算与语言 · 计算机科学 2016-06-28 Yadollah Yaghoobzadeh , Hinrich Schütze

Although the Internet AS-level topology has been extensively studied over the past few years, little is known about the details of the AS taxonomy. An AS "node" can represent a wide variety of organizations, e.g., large ISP, or small…

网络与互联网体系结构 · 计算机科学 2007-05-23 Xenofontas Dimitropoulos , Dmitri Krioukov , George Riley , kc claffy

Idiomatic expressions can be problematic for natural language processing applications as their meaning cannot be inferred from their constituting words. A lack of successful methodological approaches and sufficiently large datasets prevents…

计算与语言 · 计算机科学 2021-11-11 Tadej Škvorc , Polona Gantar , Marko Robnik-Šikonja

Existing deep hierarchical topic models are able to extract semantically meaningful topics from a text corpus in an unsupervised manner and automatically organize them into a topic hierarchy. However, it is unclear how to incorporate prior…

机器学习 · 计算机科学 2021-10-28 Zhibin Duan , Yishi Xu , Bo Chen , Dongsheng Wang , Chaojie Wang , Mingyuan Zhou

Ontologies often lack explicit disjointness declarations between classes, despite their usefulness for sophisticated reasoning and consistency checking in Knowledge Graphs. In this study, we explore the potential of Large Language Models…

人工智能 · 计算机科学 2024-12-03 Elias Crum , Antonio De Santis , Manon Ovide , Jiaxin Pan , Alessia Pisu , Nicolas Lazzari , Sebastian Rudolph

Scientific fields are often mapped using citations and metadata, despite knowledge being transmitted primarily through content. We introduce an 'inside-out' approach that reconstructs field structure directly from text by representing each…

社会与信息网络 · 计算机科学 2026-01-22 Seorin Kim , Vincent Holst , Vincent Ginis

Taxonomies, which organize domain concepts into hierarchical structures, are crucial for building knowledge systems and downstream applications. As domain knowledge evolves, taxonomies need to be continuously updated to include new…

计算与语言 · 计算机科学 2024-06-26 Fei Xia , Yixuan Weng , Shizhu He , Kang Liu , Jun Zhao