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In the field of machine learning, data understanding is the practice of getting initial insights in unknown datasets. Such knowledge-intensive tasks require a lot of documentation, which is necessary for data scientists to grasp the meaning…

Databases · Computer Science 2018-06-14 Markus Schröder , Christian Jilek , Jörn Hees , Andreas Dengel

The recent efforts in automation of machine learning or data science has achieved success in various tasks such as hyper-parameter optimization or model selection. However, key areas such as utilizing domain knowledge and data semantics are…

Artificial Intelligence · Computer Science 2023-03-03 Udayan Khurana , Kavitha Srinivas , Sainyam Galhotra , Horst Samulowitz

Given a natural language phrase, relation linking aims to find a relation (predicate or property) from the underlying knowledge graph to match the phrase. It is very useful in many applications, such as natural language question answering,…

Artificial Intelligence · Computer Science 2019-10-25 Weiguo Zheng , Mei Zhang

Recent advancements in open-domain question answering (ODQA), i.e., finding answers from large open-domain corpus like Wikipedia, have led to human-level performance on many datasets. However, progress in QA over book stories (Book QA) lags…

Computation and Language · Computer Science 2021-06-08 Xiangyang Mou , Chenghao Yang , Mo Yu , Bingsheng Yao , Xiaoxiao Guo , Saloni Potdar , Hui Su

Text-based Question Answering (QA) is a challenging task which aims at finding short concrete answers for users' questions. This line of research has been widely studied with information retrieval techniques and has received increasing…

Information Retrieval · Computer Science 2020-05-28 Zahra Abbasiantaeb , Saeedeh Momtazi

We focus on multiple-choice question answering (QA) tasks in subject areas such as science, where we require both broad background knowledge and the facts from the given subject-area reference corpus. In this work, we explore simple yet…

Computation and Language · Computer Science 2019-10-03 Xiaoman Pan , Kai Sun , Dian Yu , Jianshu Chen , Heng Ji , Claire Cardie , Dong Yu

Web development is a challenging research area for its creativity and complexity. The existing raised key challenge in web technology technologic development is the presentation of data in machine read and process able format to take…

Artificial Intelligence · Computer Science 2010-08-10 Zeeshan Ahmed , Detlef Gerhard

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

A foundation is investigated for the application of loosely structured data on the Web. This area is often referred to as Linked Data, due to the use of URIs in data to establish links. This work focuses on emerging W3C standards which…

Logic in Computer Science · Computer Science 2011-08-02 Ross Horne , Vladimiro Sassone

In the last years, the Linked Data Cloud has achieved a size of more than 100 billion facts pertaining to a multitude of domains. However, accessing this information has been significantly challenging for lay users. Approaches to problems…

Computation and Language · Computer Science 2020-05-07 Tommaso Soru , Edgard Marx , Diego Moussallem , Gustavo Publio , André Valdestilhas , Diego Esteves , Ciro Baron Neto

Table question answering is a popular task that assesses a model's ability to understand and interact with structured data. However, the given table often does not contain sufficient information for answering the question, necessitating the…

Computation and Language · Computer Science 2024-01-30 Yujian Liu , Jiabao Ji , Tong Yu , Ryan Rossi , Sungchul Kim , Handong Zhao , Ritwik Sinha , Yang Zhang , Shiyu Chang

With the rapid development of knowledge base,question answering based on knowledge base has been a hot research issue. In this paper, we focus on answering singlerelation factoid questions based on knowledge base. We build a question…

Artificial Intelligence · Computer Science 2018-10-10 Zhaohui Chao , Lin Li

A question answering system that in addition to providing an answer provides an explanation of the reasoning that leads to that answer has potential advantages in terms of debuggability, extensibility and trust. To this end, we propose QED,…

Computation and Language · Computer Science 2020-09-15 Matthew Lamm , Jennimaria Palomaki , Chris Alberti , Daniel Andor , Eunsol Choi , Livio Baldini Soares , Michael Collins

The Web publishing paradigm of Linked Data has been gaining traction in the cultural heritage sector: libraries, archives and museums. At first glance, the principles of Linked Data seem simple enough. However experienced Web developers,…

Digital Libraries · Computer Science 2013-06-21 Ed Summers , Dorothea Salo

Resolving knowledge conflicts is a crucial challenge in Question Answering (QA) tasks, as the internet contains numerous conflicting facts and opinions. While some research has made progress in tackling ambiguous settings where multiple…

Computation and Language · Computer Science 2024-10-30 Sagi Shaier , Ari Kobren , Philip Ogren

Structured information is an important knowledge source for automatic verification of factual claims. Nevertheless, the majority of existing research into this task has focused on textual data, and the few recent inquiries into structured…

Computation and Language · Computer Science 2021-08-23 Michael Schlichtkrull , Vladimir Karpukhin , Barlas Oğuz , Mike Lewis , Wen-tau Yih , Sebastian Riedel

Question answering (QA) in English has been widely explored, but multilingual datasets are relatively new, with several methods attempting to bridge the gap between high- and low-resourced languages using data augmentation through…

Computation and Language · Computer Science 2021-06-01 Arnab Debnath , Navid Rajabi , Fardina Fathmiul Alam , Antonios Anastasopoulos

Tables extracted from web documents can be used to directly answer many web search queries. Previous works on question answering (QA) using web tables have focused on factoid queries, i.e., those answerable with a short string like person…

Information Retrieval · Computer Science 2020-01-13 Kaushik Chakrabarti , Zhimin Chen , Siamak Shakeri , Guihong Cao

Relational data sources are still one of the most popular ways to store enterprise or Web data, however, the issue with relational schema is the lack of a well-defined semantic description. A common ontology provides a way to represent the…

Machine Learning · Computer Science 2018-01-31 Natalia Ruemmele , Yuriy Tyshetskiy , Alex Collins

In this work, we take a closer look at the evaluation of two families of methods for enriching information from knowledge graphs: Link Prediction and Entity Alignment. In the current experimental setting, multiple different scores are…

Machine Learning · Computer Science 2023-09-21 Max Berrendorf , Evgeniy Faerman , Laurent Vermue , Volker Tresp