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In this position paper, we propose a new approach to generating a type of knowledge base (KB) from text, based on question generation and entity linking. We argue that the proposed type of KB has many of the key advantages of a traditional…

Artificial Intelligence · Computer Science 2022-07-05 Wenhu Chen , William W. Cohen , Michiel De Jong , Nitish Gupta , Alessandro Presta , Pat Verga , John Wieting

Entity alignment seeks to find entities in different knowledge graphs (KGs) that refer to the same real-world object. Recent advancement in KG embedding impels the advent of embedding-based entity alignment, which encodes entities in a…

Computation and Language · Computer Science 2020-07-21 Zequn Sun , Qingheng Zhang , Wei Hu , Chengming Wang , Muhao Chen , Farahnaz Akrami , Chengkai Li

Knowledge Base Question Answering (KBQA) aims to answer natural language questions with the help of an external knowledge base. The core idea is to find the link between the internal knowledge behind questions and known triples of the…

Computation and Language · Computer Science 2022-05-03 Hanyu Zhao , Sha Yuan , Jiahong Leng , Xiang Pan , Guoqiang Wang , Ledell Wu , Jie Tang

Knowledge Measures (KMs) aim at quantifying the amount of knowledge/information that a knowledge base carries. On the other hand, Belief Change (BC) is the process of changing beliefs (in our case, in terms of contraction, expansion and…

Artificial Intelligence · Computer Science 2024-03-18 Umberto Straccia , Giovanni Casini

Most existing approaches for Knowledge Base Question Answering (KBQA) focus on a specific underlying knowledge base either because of inherent assumptions in the approach, or because evaluating it on a different knowledge base requires…

Fact-based Visual Question Answering (FVQA), a challenging variant of VQA, requires a QA-system to include facts from a diverse knowledge graph (KG) in its reasoning process to produce an answer. Large KGs, especially common-sense KGs, are…

Computation and Language · Computer Science 2021-06-22 Kiran Ramnath , Mark Hasegawa-Johnson

Knowledge Graph Embedding (KGE) models are used to learn continuous representations of entities and relations. A key task in the literature is predicting missing links between entities. However, Knowledge Graphs are not just sets of links…

Artificial Intelligence · Computer Science 2023-08-28 Thiviyan Thanapalasingam , Emile van Krieken , Peter Bloem , Paul Groth

While transformers demonstrate impressive performance on many knowledge intensive (KI) tasks, their ability to serve as implicit knowledge bases (KBs) remains limited, as shown on several slot-filling, question-answering (QA), fact…

Computation and Language · Computer Science 2022-03-21 Nic Jedema , Thuy Vu , Manish Gupta , Alessandro Moschitti

We consider fact-checking approaches that aim to predict the veracity of assertions in knowledge graphs. Five main categories of fact-checking approaches for knowledge graphs have been proposed in the recent literature, of which each is…

Machine Learning · Computer Science 2024-09-11 Umair Qudus , Michael Roeder , Muhammad Saleem , Axel-Cyrille Ngonga Ngomo

Non-Factoid (NF) Question Answering (QA) is challenging to evaluate due to diverse potential answers and no objective criterion. The commonly used automatic evaluation metrics like ROUGE or BERTScore cannot accurately measure semantic…

Computation and Language · Computer Science 2024-10-01 Sihui Yang , Keping Bi , Wanqing Cui , Jiafeng Guo , Xueqi Cheng

Factual consistency is an essential quality of text summarization models in practical settings. Existing work in evaluating this dimension can be broadly categorized into two lines of research, entailment-based and question answering…

Computation and Language · Computer Science 2022-05-02 Alexander R. Fabbri , Chien-Sheng Wu , Wenhao Liu , Caiming Xiong

Learning product representations that reflect complementary relationship plays a central role in e-commerce recommender system. In the absence of the product relationships graph, which existing methods rely on, there is a need to detect the…

Information Retrieval · Computer Science 2019-12-02 Da Xu , Chuanwei Ruan , Jason Cho , Evren Korpeoglu , Sushant Kumar , Kannan Achan

Question answering (QA) has become a popular way for humans to access billion-scale knowledge bases. Unlike web search, QA over a knowledge base gives out accurate and concise results, provided that natural language questions can be…

Computation and Language · Computer Science 2019-03-07 Wanyun Cui , Yanghua Xiao , Haixun Wang , Yangqiu Song , Seung-won Hwang , Wei Wang

We present KBLRN, a framework for end-to-end learning of knowledge base representations from latent, relational, and numerical features. KBLRN integrates feature types with a novel combination of neural representation learning and…

Artificial Intelligence · Computer Science 2018-06-12 Alberto Garcia-Duran , Mathias Niepert

Knowledge graph (KG) completion aims to identify additional facts that can be inferred from the existing facts in the KG. Recent developments in this field have explored this task in the inductive setting, where at test time one sees…

Machine Learning · Computer Science 2025-04-10 Sharmishtha Dutta , Alex Gittens , Mohammed J. Zaki , Charu C. Aggarwal

Providing model-generated explanations in recommender systems is important to user experience. State-of-the-art recommendation algorithms - especially collaborative filtering (CF)-based approaches with shallow or deep models - usually work…

Information Retrieval · Computer Science 2019-01-23 Qingyao Ai , Vahid Azizi , Xu Chen , Yongfeng Zhang

StackOverflow has become an emerging resource for talent recognition in recent years. While users exploit technical language on StackOverflow, recruiters try to find the relevant candidates for jobs using their own terminology. This…

Information Retrieval · Computer Science 2019-07-17 Arash Dargahi Nobari , Mahmood Neshati , Sajad Sotudeh Gharebagh

Large Language Models (LLMs) store an extensive amount of factual knowledge obtained from vast collections of text. To effectively utilize these models for downstream tasks, it is crucial to have reliable methods for measuring their…

Computation and Language · Computer Science 2023-06-13 Pouya Pezeshkpour

An essential requirement for a real-world Knowledge Base Question Answering (KBQA) system is the ability to detect the answerability of questions when generating logical forms. However, state-of-the-art KBQA models assume all questions to…

Computation and Language · Computer Science 2024-11-05 Prayushi Faldu , Indrajit Bhattacharya , Mausam

Knowledge graphs (KGs) are valuable for representing structured, interconnected information across domains, enabling tasks like semantic search, recommendation systems and inference. A pertinent challenge with KGs, however, is that many…

Computation and Language · Computer Science 2024-12-17 Haji Gul , Abdul Ghani Naim , Ajaz A. Bhat