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Thanks to information extraction and semantic Web efforts, search on unstructured text is increasingly refined using semantic annotations and structured knowledge bases. However, most users cannot become familiar with the schema of…

Information Retrieval · Computer Science 2012-12-27 Uma Sawant , Soumen Chakrabarti

Being able to automatically discover synonymous entities in an open-world setting benefits various tasks such as entity disambiguation or knowledge graph canonicalization. Existing works either only utilize entity features, or rely on…

Computation and Language · Computer Science 2020-05-12 Chenwei Zhang , Yaliang Li , Nan Du , Wei Fan , Philip S. Yu

Given a query, unlike traditional IR that finds relevant documents or entities, in this work, we focus on retrieving both entities and their connections for insightful knowledge summarization. For example, given a query "computer vision" on…

Information Retrieval · Computer Science 2019-10-01 Carl Yang , Lingrui Gan , Zongyi Wang , Jiaming Shen , Jinfeng Xiao , Jiawei Han

In this paper, we describe TextEnt, a neural network model that learns distributed representations of entities and documents directly from a knowledge base (KB). Given a document in a KB consisting of words and entity annotations, we train…

Computation and Language · Computer Science 2018-06-11 Ikuya Yamada , Hiroyuki Shindo , Yoshiyasu Takefuji

Entity linking (EL) is the task of linking entity mentions in a document to referent entities in a knowledge base (KB). Many previous studies focus on Wikipedia-derived KBs. There is little work on EL over Wikidata, even though it is the…

Computation and Language · Computer Science 2022-03-16 Tuan Manh Lai , Heng Ji , ChengXiang Zhai

The hypergraph-of-entity was conceptually proposed as a general model for entity-oriented search. However, only the performance for ad hoc document retrieval had been assessed. We continue this line of research by also evaluating ad hoc…

Information Retrieval · Computer Science 2021-09-02 José Devezas , Sérgio Nunes

This study proposes a Neural Attentive Bag-of-Entities model, which is a neural network model that performs text classification using entities in a knowledge base. Entities provide unambiguous and relevant semantic signals that are…

Computation and Language · Computer Science 2019-09-11 Ikuya Yamada , Hiroyuki Shindo

Query understanding is essential in modern relevance systems, where user queries are often short, ambiguous, and highly context-dependent. Traditional approaches often rely on multiple task-specific Named Entity Recognition models to…

Information Retrieval · Computer Science 2025-09-15 Ping Liu , Jianqiang Shen , Qianqi Shen , Chunnan Yao , Kevin Kao , Dan Xu , Rajat Arora , Baofen Zheng , Caleb Johnson , Liangjie Hong , Jingwei Wu , Wenjing Zhang

Due to the lack of structured knowledge applied in learning distributed representation of categories, existing work cannot incorporate category hierarchies into entity information.~We propose a framework that embeds entities and categories…

Computation and Language · Computer Science 2016-05-16 Yuezhang Li , Ronghuo Zheng , Tian Tian , Zhiting Hu , Rahul Iyer , Katia Sycara

Keyword-based information processing has limitations due to simple treatment of words. In this paper, we introduce named entities as objectives into document clustering, which are the key elements defining document semantics and in many…

Information Retrieval · Computer Science 2018-07-23 Tru H. Cao , Vuong M. Ngo , Dung T. Hong , Tho T. Quan

Entity typing aims to assign types to the entity mentions in given texts. The traditional classification-based entity typing paradigm has two unignorable drawbacks: 1) it fails to assign an entity to the types beyond the predefined type…

Computation and Language · Computer Science 2022-10-19 Siyu Yuan , Deqing Yang , Jiaqing Liang , Zhixu Li , Jinxi Liu , Jingyue Huang , Yanghua Xiao

Entities are at the center of how we represent and aggregate knowledge. For instance, Encyclopedias such as Wikipedia are structured by entities (e.g., one per Wikipedia article). The ability to retrieve such entities given a query is…

Computation and Language · Computer Science 2021-03-25 Nicola De Cao , Gautier Izacard , Sebastian Riedel , Fabio Petroni

In standard methodology for natural language processing, entities in text are typically embedded in dense vector spaces with pre-trained models. The embeddings produced this way are effective when fed into downstream models, but they…

Computation and Language · Computer Science 2020-10-14 Yasumasa Onoe , Greg Durrett

Significant challenges are posed in talent acquisition and recruitment by processing and analyzing unstructured data, particularly resumes. This research presents a novel approach for orphan entity allocation in resume processing using…

Computation and Language · Computer Science 2023-10-24 Aagam Bakliwal , Shubham Manish Gandhi , Yashodhara Haribhakta

In this paper, we address web-scale visual entity recognition, specifically the task of mapping a given query image to one of the 6 million existing entities in Wikipedia. One way of approaching a problem of such scale is using dual-encoder…

Computer Vision and Pattern Recognition · Computer Science 2024-03-22 Mathilde Caron , Ahmet Iscen , Alireza Fathi , Cordelia Schmid

Literature search is critical for any scientific research. Different from Web or general domain search, a large portion of queries in scientific literature search are entity-set queries, that is, multiple entities of possibly different…

Information Retrieval · Computer Science 2018-05-01 Jiaming Shen , Jinfeng Xiao , Xinwei He , Jingbo Shang , Saurabh Sinha , Jiawei Han

The traditional entity extraction problem lies in the ability of extracting named entities from plain text using natural language processing techniques and intensive training from large document collections. Examples of named entities…

Information Retrieval · Computer Science 2007-11-21 Anne-Marie Vercoustre , James A. Thom , Jovan Pehcevski

Topic models aim to reveal latent structures within a corpus of text, typically through the use of term-frequency statistics over bag-of-words representations from documents. In recent years, conceptual entities -- interpretable,…

Computation and Language · Computer Science 2024-08-27 Manuel V. Loureiro , Steven Derby , Tri Kurniawan Wijaya

Many fundamental problems in natural language processing rely on determining what entities appear in a given text. Commonly referenced as entity linking, this step is a fundamental component of many NLP tasks such as text understanding,…

Computation and Language · Computer Science 2016-02-01 Octavian-Eugen Ganea , Marina Ganea , Aurelien Lucchi , Carsten Eickhoff , Thomas Hofmann

Table retrieval is essential for accessing information stored in structured tabular formats; however, it remains less explored than text retrieval. The content of the table primarily consists of phrases and words, which include a large…

Information Retrieval · Computer Science 2025-04-10 Da Li , Keping Bi , Jiafeng Guo , Xueqi Cheng