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Ontology-Based Data Access: A Survey

A survey on the framework of ontology-based data access for providing user-friendly access to relational data sources.

The paper discusses the main ingredients, key results, techniques, applications, and future challenges of ontology-based data access. It focuses on relational data sources and provides a comprehensive overview of the field. The authors present the theoretical foundations, practical techniques, and potential applications of this semantic paradigm.

Based on: Ontology-Based Data Access: A Survey

HighlightJournal of Web Semantics

Completeness and consistency analysis for evolving knowledge bases

This paper presents an analysis on completeness and consistency in evolving knowledge bases.

The authors propose a framework to analyze the completeness and consistency of evolving knowledge bases. They introduce metrics to measure these aspects and apply them to several case studies. The results demonstrate the effectiveness of their approach in identifying issues with knowledge base evolution.

Based on: Completeness and consistency analysis for evolving knowledge bases · Journal of Web Semantics

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Multilingual Knowledge Graph Embeddings for Cross-lingual Knowledge Alignment

A translation-based model for multilingual knowledge graph embeddings.

The paper proposes MTransE, a model that provides transitions for each embedding vector to its cross-lingual counterparts in other spaces. It can be trained on partially aligned graphs and preserves the key properties of monolingual embeddings. The experiments show promising results on cross-lingual entity matching and triple-wise alignment verification.

Based on: Multilingual Knowledge Graph Embeddings for Cross-lingual Knowledge Alignment

HighlightSemantic Web

Linked data quality of DBpedia, Freebase, OpenCyc, Wikidata, and YAGO

A survey comparing the data quality criteria of five large knowledge graphs.

The paper compares the data quality of five large knowledge graphs: DBpedia, Freebase, OpenCyc, Wikidata, and YAGO. It provides a framework for analyzing and selecting the most suitable graph for a given setting. The authors propose data quality criteria to evaluate these graphs.

Based on: Linked data quality of DBpedia, Freebase, OpenCyc, Wikidata, and YAGO · Semantic Web

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Semantic Parsing via Staged Query Graph Generation: Question Answering with Knowledge Base

This paper presents a method for question answering with knowledge bases using staged query graph generation.

The authors propose a semantic parsing approach that generates query graphs in stages to answer questions based on a knowledge base. This method improves the accuracy of question answering by iteratively refining the query graph. The proposed approach is evaluated on several benchmarks and shows competitive results compared to state-of-the-art methods.

Based on: Semantic Parsing via Staged Query Graph Generation: Question Answering with Knowledge Base

HighlightJournal of Automated Reasoning

HermiT: An OWL 2 Reasoner

A reasoner for the OWL 2 ontology language.

HermiT is a reasoner designed to support the OWL 2 ontology language, which is used for representing knowledge on the web.,The paper presents HermiT's architecture and its ability to perform reasoning tasks such as subsumption and satisfiability checking.,It also discusses the system's performance and scalability.

Based on: HermiT: An OWL 2 Reasoner · Journal of Automated Reasoning

HighlightarXiv (Cornell University)

Embedding Entities and Relations for Learning and Inference in Knowledge Bases

A survey on approaches to learning first-order logic rules over knowledge graphs.

This paper reviews state-of-the-art systems for learning first-order logic rules over knowledge graphs. It conducts a comparative analysis of various approaches, including ILP-based, statistical path generalisation, and neuro-symbolic methods. The authors highlight important application scenarios of rule learning in knowledge graph completion, fact checking, and other research areas.

Based on: Embedding Entities and Relations for Learning and Inference in Knowledge Bases · arXiv (Cornell University)

HighlightJournal of Artificial Intelligence Research

Text Relatedness Based on a Word Thesaurus

A paper proposing a measure of semantic relatedness between texts using word-to-word semantic links.

The authors present a new approach to measuring text relatedness based on implicit semantic links between words.,They introduce Omiotis, a measure that capitalizes on the semantic relatedness between individual words and extends it to text-to-text relatedness.,Experimental evaluation shows that this method outperforms lexicon-based methods in selected tasks.

Based on: Text Relatedness Based on a Word Thesaurus · Journal of Artificial Intelligence Research

HighlightJournal of Web Semantics

OWL 2: The next step for OWL

A paper discussing the development and features of OWL 2.

The authors present an overview of OWL 2, a new version of the Web Ontology Language. They discuss its key features, including improved expressiveness and better support for reasoning. The paper also highlights the benefits of using OWL 2 in various applications.

Based on: OWL 2: The next step for OWL · Journal of Web Semantics

HighlightJournal of Web Semantics

YAGO: A Large Ontology from Wikipedia and WordNet

A large ontology constructed from Wikipedia and WordNet.

YAGO is a large-scale ontology that integrates information from Wikipedia and WordNet.,It was developed by Fabian M. Suchanek, Gjergji Kasneci, and Gerhard Weikum in 2008.,The ontology covers a wide range of entities and relationships, making it a valuable resource for knowledge graph applications.

Based on: YAGO: A Large Ontology from Wikipedia and WordNet · Journal of Web Semantics

HighlightFoundations of artificial intelligence

Handbook of Knowledge Representation

A handbook on knowledge representation, published in the Foundations of artificial intelligence series.

The Handbook of Knowledge Representation is a comprehensive resource covering various aspects of knowledge representation.,It provides an overview of the field, discussing topics such as formalisms and their applications.,The book is part of the Foundations of Artificial Intelligence series.

Based on: Handbook of Knowledge Representation · Foundations of artificial intelligence

HighlightLecture notes in computer science

Applying KAoS Services to Ensure Policy Compliance for Semantic Web Services Workflow Composition and Enactment

Paper on applying KAoS services to ensure policy compliance in semantic web services workflow composition and enactment.

This paper explores the application of KAoS services to ensure policy compliance in semantic web services. The authors investigate how KAoS can be used to manage policies and ensure that they are enforced during the composition and enactment of workflows. The paper discusses the benefits and challenges of using KAoS for this purpose, including its ability to provide a flexible and scalable approach to policy management.

Based on: Applying KAoS Services to Ensure Policy Compliance for Semantic Web Services Workflow Composition and Enactment · Lecture notes in computer science