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Named entity linking is to map an ambiguous mention in documents to an entity in a knowledge base. The named entity linking is challenging, given the fact that there are multiple candidate entities for a mention in a document. It is…

计算与语言 · 计算机科学 2020-02-13 Wei Shi , Siyuan Zhang , Zhiwei Zhang , Hong Cheng , Jeffrey Xu Yu

We present ConceptEvo, a unified interpretation framework for deep neural networks (DNNs) that reveals the inception and evolution of learned concepts during training. Our work addresses a critical gap in DNN interpretation research, as…

In this paper, we describe an approach to populate an existing ontology with instance information present in the natural language text provided as input. An ontology is defined as an explicit conceptualization of a shared domain. This…

信息检索 · 计算机科学 2013-02-07 Raghu Anantharangachar , Srinivasan Ramani , S Rajagopalan

This paper deals with an extended model of computations which uses the parameterized families of entities for data objects and reflects a preliminary outline of this problem. Some topics are selected out, briefly analyzed and arranged to…

计算机科学中的逻辑 · 计算机科学 2007-05-23 Larissa Ismailova , Konstantin Zinchenko , Lioubouv Bourmistrova

Citation sentiment analysis is an important task in scientific paper analysis. Existing machine learning techniques for citation sentiment analysis are focusing on labor-intensive feature engineering, which requires large annotated corpus.…

计算与语言 · 计算机科学 2017-04-04 Haixia Liu

Named entity recognition (NER) is an information extraction technique that aims to locate and classify named entities (e.g., organizations, locations,...) within a document into predefined categories. Correctly identifying these phrases…

计算与语言 · 计算机科学 2021-12-16 Tran Thi Hong Hanh , Antoine Doucet , Nicolas Sidere , Jose G. Moreno , Senja Pollak

Semantic embedding has been widely investigated for aligning knowledge graph (KG) entities. Current methods have explored and utilized the graph structure, the entity names and attributes, but ignore the ontology (or ontological schema)…

计算与语言 · 计算机科学 2021-05-25 Yuejia Xiang , Ziheng Zhang , Jiaoyan Chen , Xi Chen , Zhenxi Lin , Yefeng Zheng

Most researches for knowledge graph completion learn representations of entities and relations to predict missing links in incomplete knowledge graphs. However, these methods fail to take full advantage of both the contextual information of…

计算与语言 · 计算机科学 2020-12-15 Ziyue Qiao , Zhiyuan Ning , Yi Du , Yuanchun Zhou

We propose to learn word embeddings from visual co-occurrences. Two words co-occur visually if both words apply to the same image or image region. Specifically, we extract four types of visual co-occurrences between object and attribute…

计算机视觉与模式识别 · 计算机科学 2019-08-23 Tanmay Gupta , Alexander Schwing , Derek Hoiem

Computer vision has benefited from initializing multiple deep layers with weights pretrained on large supervised training sets like ImageNet. Natural language processing (NLP) typically sees initialization of only the lowest layer of deep…

计算与语言 · 计算机科学 2018-06-21 Bryan McCann , James Bradbury , Caiming Xiong , Richard Socher

Relation extraction as an important natural Language processing (NLP) task is to identify relations between named entities in text. Recently, graph convolutional networks over dependency trees have been widely used to capture syntactic…

计算与语言 · 计算机科学 2024-11-13 Xin Wang , Xinyi Bai

A key challenge in entity linking is making effective use of contextual information to disambiguate mentions that might refer to different entities in different contexts. We present a model that uses convolutional neural networks to capture…

计算与语言 · 计算机科学 2016-04-05 Matthew Francis-Landau , Greg Durrett , Dan Klein

Contextualised word embeddings is a powerful tool to detect contextual synonyms. However, most of the current state-of-the-art (SOTA) deep learning concept extraction methods remain supervised and underexploit the potential of the context.…

计算与语言 · 计算机科学 2021-09-07 Jingqing Zhang , Luis Bolanos , Tong Li , Ashwani Tanwar , Guilherme Freire , Xian Yang , Julia Ive , Vibhor Gupta , Yike Guo

Most existing topic models rely on bag-of-words (BOW) representation, which limits their ability to capture word order information and leads to challenges with out-of-vocabulary (OOV) words in new documents. Contextualized word embeddings,…

计算与语言 · 计算机科学 2024-03-07 Zheng Fang , Yulan He , Rob Procter

Ontologies are useful for automatic machine processing of domain knowledge as they represent it in a structured format. Yet, constructing ontologies requires substantial manual effort. To automate part of this process, large language models…

机器学习 · 计算机科学 2024-11-01 Andy Lo , Albert Q. Jiang , Wenda Li , Mateja Jamnik

Word embedding is a useful approach to capture co-occurrence structures in large text corpora. However, in addition to the text data itself, we often have additional covariates associated with individual corpus documents---e.g. the…

计算与语言 · 计算机科学 2018-07-10 Kevin Tian , Teng Zhang , James Zou

Event extraction (EE) has considerably benefited from pre-trained language models (PLMs) by fine-tuning. However, existing pre-training methods have not involved modeling event characteristics, resulting in the developed EE models cannot…

计算与语言 · 计算机科学 2021-06-01 Ziqi Wang , Xiaozhi Wang , Xu Han , Yankai Lin , Lei Hou , Zhiyuan Liu , Peng Li , Juanzi Li , Jie Zhou

We present KNOW--the Knowledge Navigator Ontology for the World--the first ontology designed to capture everyday knowledge to augment large language models (LLMs) in real-world generative AI use cases such as personal AI assistants. Our…

人工智能 · 计算机科学 2024-05-31 Arto Bendiken

The work presented in this master thesis consists of extracting a set of events from texts written in natural language. For this purpose, we have based ourselves on the basic notions of the information extraction as well as the open…

计算与语言 · 计算机科学 2019-07-03 Sihem Sahnoun

This paper presents a word-entity duet framework for utilizing knowledge bases in ad-hoc retrieval. In this work, the query and documents are modeled by word-based representations and entity-based representations. Ranking features are…

信息检索 · 计算机科学 2017-06-22 Chenyan Xiong , Jamie Callan , Tie-Yan Liu