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作者:Yogesh Pandey , Srividya Bansal
来源:[J].Open Journal of Semantic Web, 2017, Vol.4 (1), pp.35-50
摘要:There has been an exponential growth and availability of both structured and unstructured data that can be leveraged to provide better emergency management in case of natural disasters and humanitarian crises. This paper is an extension of a semantics-based web application for sa...
作者:Mohamed Chabchoub , Michel Gagnon , Amal Zouaq
来源:[J].Open Journal of Semantic Web, 2018, Vol.5 (1), pp.12-28
摘要:In this paper we present FICLONE, which aims to improve the performance of DBpedia Spotlight, not only for the task of semantic annotation (SA), but also for the sub-task of named entity disambiguation (NED). To achieve this aim, first we enhance the spotting phase by combining a...
作者:Ludovic Font , Amal Zouaq , Michel Gagnon
来源:[J].Open Journal of Semantic Web, 2017, Vol.4 (1), pp.1-19
摘要:With the development of knowledge graphs and the billions of triples generated on the Linked Data cloud, it is paramount to ensure the quality of data. In this work, we focus on one of the central hubs of the Linked Data cloud, DBpedia. In particular, we assess the quality of DBp...
作者:Bogdan Kostov , Petr Kremen
来源:[J].Open Journal of Semantic Web, 2017, Vol.5 (1), pp.1-11
摘要:In this paper, we revise count distinct queries and their semantics over datasets with incomplete knowledge, which is a typical case for the linked data integration scenario where datasets are viewed as ontologies. We focus on counting individuals present in the signature of the ...
作者:Mayank Kejriwal , Pedro Szekely
来源:[J].Open Journal of Semantic Web, 2017, Vol.4 (1), pp.20-34
摘要:Structured knowledge bases gain their expressive power from both the ABox and TBox. While the ABox is rich in data, the TBox contains the ontological assertions that are often necessary for logical inference. The crucial links between the ABox and the TBox are served by is-a stat...
作者:Marek Smid , Petr Kremen
来源:[J].Open Journal of Semantic Web, 2016, Vol.3 (1), pp.32-50
摘要:Querying geospatial data from multiple heterogeneous sources backed by different management technologies poses an interesting problem in the data integration and in the subsequent result interpretation. This paper proposes broker techniques for answering a user's complex spatial ...
作者:Rafael Peixoto , Thomas Hassan , Christophe Cruz ...
来源:[J].Open Journal of Semantic Web, 2016, Vol.3 (1), pp.1-15
摘要:Extracting valuable data among large volumes of data is one of the main challenges in Big Data. In this paper, a Hierarchical Multi-Label Classification process called Semantic HMC is presented. This process aims to extract valuable data from very large data sources, by automatic...
作者:Marta Tatu , Mithun Balakrishna , Steven Werner ...
来源:[J].Open Journal of Semantic Web, 2016, Vol.3 (1), pp.16-31
摘要:Traditionally, the task of answering natural language questions has involved a keyword-based document retrieval step, followed by in-depth processing of candidate answer documents and paragraphs. This post-processing uses semantics to various degrees. In this article, we describe...

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