Abstract Background Question Answering (QA) systems enable users to retrieve exact
answers for questions posed in natural language. Objective This study aims at identifying …

A few years after Google announced that their 'Knowledge Graph'would have allowed
searching for things, not strings, 1 knowledge graphs start entering information retrieval …

The Handbook of Natural Language Processing, Second Edition presents practical tools
and techniques for implementing natural language processing in computer systems. Along …

This article provides a comprehensive and comparative overview of question answering
technology. It presents the question answering task from an information retrieval perspective …

The need to query information content available in various formats including structured and
unstructured data (text in natural language, semi-structured Web documents, structured RDF …

With the recent rapid growth of the Semantic Web (SW), the processes of searching and
querying content that is both massive in scale and heterogeneous have become …

In the current era of internet, information related to crime is scattered across many sources
namely news media, social networks, blogs, and video repositories, etc. Crime reports …

The application of natural language to improve the interaction of human users with
information systems is a growing trend in the recent years. Advances in cognitive computing …

This paper presents two proposals based on semantic information, semantic roles and
WordNet, for the answer extraction module of a general open-domain question answering …

Searching huge and heterogeneous contents from the web has become an increasingly
challenging task with the contemporary growth of semantic web. In order to make the vision …