Summary General-purpose knowledge bases (KBs) are a cornerstone of the Web ecosytem. Pragmatically constructed from available web sources, these KBs are far from complete, which poses a set of challenges [...] introduce the logical foundations of knowledge representation and querying under partial closed-world semantics. (ii) We show how information about recall can be identified inside KBs and in text, and (iii) how [...] comparative notion. Outline 1. Introduction and Foundation (15:45-16:00): We outline the gaps in existing web-scale KBs [19], and motivate the importance for capturing information about completeness, recall and
Systems Research Commonsense Knowledge Ascent++ Ascent++ Refined Commonsense Knowledge from Large-Scale Web Contents Commonsense knowledge (CSK) about concepts and their properties is useful for AI applications [...] triples by capturing composite concepts with subgroups and aspects, and by refining assertions with semantic facets. The latter is important to express the temporal and spatial validity of assertions and further [...] and saliency scores. For high coverage, our method taps into the large-scale crawl C4 with broad web contents. The evaluation with human judgements shows the superior quality of the ASCENT++ KB, and an
Summary General-purpose knowledge bases (KBs) are a cornerstone of the SemanticWeb. Pragmatically constructed from available web sources, these KBs are far from complete, which poses a set of challenges [...] negative statements in Knowledge Bases, published at AKBC’20, and presented at ISWC’20, as significant WebSemantic related work in a sister-conference. Shrestha Ghosh - Max Planck Institute for Informatics, people [...] introduce the logical foundations of knowledge representation and querying under partial closed-world semantics. (ii) We show how information about recall can be identified inside KBs and in text, and (iii) how
Summary General-purpose knowledge bases (KBs) are a cornerstone of the SemanticWeb. Pragmatically constructed from available web sources, these KBs are far from complete, which poses a set of challenges [...] negative statements in Knowledge Bases, published at AKBC’20, and presented at ISWC’20, as significant WebSemantic related work in a sister-conference. Shrestha Ghosh - Max Planck Institute for Informatics, people [...] introduce the logical foundations of knowledge representation and querying under partial closed-world semantics. (ii) We show how information about recall can be identified inside KBs and in text, and (iii) how
Summary General-purpose knowledge bases (KBs) are a cornerstone of the SemanticWeb. Pragmatically constructed from available web sources, these KBs are far from complete, which poses a set of challenges [...] negative statements in Knowledge Bases, published at AKBC’20, and presented at ISWC’20, as significant WebSemantic related work in a sister-conference. Shrestha Ghosh - Max Planck Institute for Informatics, people [...] introduce the logical foundations of knowledge representation and querying under partial closed-world semantics. (ii) We show how information about recall can be identified inside KBs and in text, and (iii) how
Departments Databases and Information Systems Research Commonsense Knowledge Ascent Ascent Advanced Semantics for Commonsense Knowledge Extraction Ascent ( A dvanced S emantics for C ommons e nse K n owledge [...] pipeline for automatically collecting, extracting and consolidating commonsense knowledge (CSK) from the web. Ascent is capable of extracting facet-enriched assertions, overcoming the common limitations of the [...] com/phongnt570/ascent Publications Tuan-Phong Nguyen, Simon Razniewski, Gerhard Weikum. Advanced Semantics for Commonsense Knowledge Extraction . WWW 2021. [ pdf ] Tuan-Phong Nguyen, Simon Razniewski, Gerhard
DASFAA 2015 (Scalable learning technologies for big data mining) and EDBT 2010 (The hidden web, XML and semanticweb). Her tutorials have 2000+ views on SlideShare. Aparna teaches courses such as AI, data [...] text-extraction-based, multi-modal and Transformer-based techniques, with special focus on the issues of web search and ranking, as of relevance to the WSDM community. Outline Time Duration Topic Downloads 09:00 [...] Germany in 2016, that resulted in the largest automatically extracted commonsense knowledge base called WebChild, which has since been used in NLP applications and in Visual Question Answering. He founded an
speech and hateful imagery on the Web is a significant problem that needs to be mitigated to improve our Web experience. The problem of hateful content is longstanding on the Web for various reasons. First, there [...] qanon conspiracy theory through telegram. In Proceedings of the 15th ACM Web Science Conference 2023, New York, NY, USA, 2023, WebSci ’23, p. 75–85. Association for Computing Machinery. [...] spread of Antisemitic and Islamophobic content in a longstanding problem, in particular within fringe Web communities. In this work, we attempt to analyze the spread of Antisemitic and Islamophobic content
from web contents and text sources, and have become a key asset for search engines. This machine knowledge can be harnessed to semantically interpret textual phrases in news, social media and web tables [...] Paulheim (2016), "Knowledge Graph Refinement: A Survey of Approaches and Evaluation Methods", SemanticWeb Journal [link] LM4KBC MALT Document Coverage Prediction Interesting negations in Knowledge Bases [...] knowledge bases. It covers models and methods for discovering and canonicalizing entities and their semantic types and organizing them into clean taxonomies. On top of this, the article discusses the automatic
