Browsing by Author "bd085456-d1f2-4741-9208-b15233aa6e82"
Now showing items 1-18 of 18
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(CEUR-WS, 2018)All rights reserved.In this paper, we summarise our results on Modelling Dynamics in Semantic Web Knowledge Graphs published at WWW 2018 where we proposed a novel data-driven schema for graphs and apply it for the use-case ...
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(CEUR-WS, 2017)IMGpedia is a linked dataset that provides a public SPARQL endpoint where users can answer queries that combine the visual similarity of images from Wikimedia Commons and semantic information from existing knowledge-bases. ...
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(IEEE, 2017)Multimedia searches often return items that can becategorized into several “topics”, allowing users to disambiguateand explore answers more efficiently. In this paper we investigatemethods for clustering tags associated ...
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(ASSOC COMPUTING MACHINERY, 2017)Existential blank nodes greatly complicate a number of fundamental operations on RDF graphs. In particular, the problems of determining if two RDF graphs have the same structure modulo blank node labels (i.e. if they are ...
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(Springer Verlag, 2018)Caching in the context of expressive query languages such as SPARQL is complicated by the difficulty of detecting equivalent queries: deciding if two conjunctive queries are equivalent is NP-complete, where adding further ...
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(Springer Verlag, 2018)Blank nodes in RDF graphs can be used to represent values known to exist but whose identity remains unknown. A prominent example of such usage can be found in the Wikidata dataset where, e.g., the author of Beowulf is given ...
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(Elsevier, 2020)The Entity Linking (EL) task involves linking mentions of entities in a text with their identifier in a Knowledge Base (KB) such as Wikipedia, BabelNet, DBpedia, Freebase, Wikidata, YAGO, etc. Numerous techniques have been ...
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(Association for Computing Machinery, 2017)We survey foundational features underlying modern graph query languages. We first discuss two popular graph data models: edge-labelled graphs, where nodes are connected by directed, labelled edges, and property graphs, ...
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(Springer Verlag, 2018)Faceted browsing has become a popular paradigm for user interfaces on the Web and has also been investigated in the context of RDF graphs. However, current faceted browsers for RDF graphs encounter performance issues when ...
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(Springer, 2017)IMGpedia is a large-scale linked dataset that incorporates visual information of the images from the Wikimedia Commons dataset: it brings together descriptors of the visual content of 15 million images, 450 million ...
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(IOP Publishing, 2020)We provide a comprehensive survey of the research literature that applies Information Extraction techniques in a Semantic Web setting. Works in the intersection of these two areas can be seen from two overlapping perspectives: ...
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(CEUR-WS, 2017)The Entity Linking (EL) task is concerned with linking entity mentions in a text collection with their corresponding knowledgebase entries. The majority of approaches have focused on EL over English text collections. ...
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(BioMed Central, 2017)Background: Several query federation engines have been proposed for accessing public Linked Open Data sources. However, in many domains, resources are sensitive and access to these resources is tightly controlled by ...
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(IOS Press, 2017)We describe SPARQLES: an online system that monitors the health of public SPARQL endpoints on the Web by probing them with custom-designed queries at regular intervals. We present the architecture of SPARQLES and the variety ...
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(IOS Press, 2020)More than two decades have passed since the establishment of the initial cornerstones of the Semantic Web. Since its inception, opinions have remained divided regarding the past, present and potential future impact of the ...
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(Springer Verlag, 2018)The Entity Linking (EL) task identifies entity mentions in a text corpus and associates them with corresponding entities in a given knowledge base. While traditional EL approaches have largely focused on English texts, ...
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(CEUR-WS, 2018)Some decades have passed since the concept of “named entity” was used for the first time. Since then, new lines of research have emerged in this environment, such as linking the (named) entity mentions in a text collection ...
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(CEUR-WS, 2018)An important aspect of exploratory search over graph data is to understand what paths connect a given pair of nodes. Since the resulting paths can be manifold, various works propose ranking paths likely to be of interest ...
