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  • Pattern-based design applied to cultural heritage knowledge graphs
    Semant. Web (IF 3.182) Pub Date : 2020-12-29
    Valentina Anita Carriero; Aldo Gangemi; Maria Letizia Mancinelli; Andrea Giovanni Nuzzolese; Valentina Presutti; Chiara Veninata

    Ontology Design Patterns (ODPs) have become an established and recognised practice for guaranteeing good quality ontology engineering. There are several ODP repositories where ODPs are shared as well as ontology design methodologies recommending their reuse. Performing rigorous testing is recommended as well for supporting ontology maintenance and validating the resulting resource against its motivating

    更新日期:2020-12-29
  • Representing narratives in digital libraries: The narrative ontology
    Semant. Web (IF 3.182) Pub Date : 2020-12-28
    Carlo Meghini; Valentina Bartalesi; Daniele Metilli

    Digital Libraries (DLs), especially in the Cultural Heritage domain, are rich in narratives. Every digital object in a DL tells some kind of story, regardless of the medium, the genre, or the type of the object. However, DLs do not offer services about narratives, for example it is not possible todiscover a narrative, to create one, or to compare two narratives. Certainly, DLs offer discovery functionalities

    更新日期:2020-12-29
  • Ce qui est écrit et ce qui est parlé. CRMtex for modelling textual entities on the Semantic Web
    Semant. Web (IF 3.182) Pub Date : 2020-12-23
    Achille Felicetti; Francesca Murano

    This paper presents the new developments of CRMtex, an ontological model based on CIDOC CRM, created to describe ancient texts and other semiotic features appearing on inscriptions, papyri, manuscripts and other similar supports. The model is also designed to describe in a formal way the phenomenarelated to the production, use, conservation, study and interpretation of textual entities. CRMtex was

    更新日期:2020-12-25
  • Knowledge Graph OLAP
    Semant. Web (IF 3.182) Pub Date : 2020-12-11
    Christoph G. Schuetz; Loris Bozzato; Bernd Neumayr; Michael Schrefl; Luciano Serafini

    A knowledge graph (KG) represents real-world entities and their relationships. The represented knowledge is often context-dependent, leading to the construction of contextualized KGs. The multidimensional and hierarchical nature of context invites comparison with the OLAP cube model from multidimensional data analysis. Traditional systems for online analytical processing (OLAP) employ multidimensional

    更新日期:2020-12-11
  • A challenge for historical research: Making data FAIR using a collaborative ontology management environment (OntoME)
    Semant. Web (IF 3.182) Pub Date : 2020-12-09
    Francesco Beretta

    Abstract This paper addresses the issue of interoperability of data generated by historical research and heritage institutions in order to make them re-usable for new research agendas according to the FAIR principles. After introducing the symogih.org project’s ontology, it proposes a description of the essential aspects of the process of historical knowledge production. It then develops an epistemological

    更新日期:2020-12-11
  • On the relation between keys and link keys for data interlinking
    Semant. Web (IF 3.182) Pub Date : 2020-12-09
    Manuel Atencia; Jérôme David; Jérôme Euzenat

    Abstract Both keys and their generalisation, link keys, may be used to perform data interlinking, i.e. finding identical resources in different RDF datasets. However, the precise relationship between keys and link keys has not been fully determined yet. A common formal framework encompassing both keys and link keys is necessary to ensure the correctness of data interlinking tools based on them, and

    更新日期:2020-12-11
  • Of lions and Yakshis
    Semant. Web (IF 3.182) Pub Date : 2020-12-07
    Franziska Pannach; Caroline Sporleder; Wolfgang May; Aravind Krishnan; Anusharani Sewchurran

    Vladimir Propp’s theory Morphology of the Folktale identifies 31 invariant functions, subfunctions, and seven classes of folktale characters to describe the narrative structure of the Russian magic tale. Since it was first published in 1928, Propp’s approach has been used on various folktales of different cultural backgrounds. ProppOntology models Propp’s theory by describing narrative functions using

    更新日期:2020-12-08
  • Empirical methodology for crowdsourcing ground truth
    Semant. Web (IF 3.182) Pub Date : 2020-12-07
    Anca Dumitrache; Oana Inel; Benjamin Timmermans; Carlos Ortiz; Robert-Jan Sips; Lora Aroyo; Chris Welty

    The process of gathering ground truth data through human annotation is a major bottleneck in the use of information extraction methods for populating the Semantic Web. Crowdsourcing-based approaches are gaining popularity in the attempt to solve the issues related to volume of data and lack of annotators. Typically these practices use inter-annotator agreement as a measure of quality. However, in many

    更新日期:2020-12-08
  • MMoOn Core – the Multilingual Morpheme Ontology
    Semant. Web (IF 3.182) Pub Date : 2020-11-26
    Bettina Klimek; Markus Ackermann; Martin Brümmer; Sebastian Hellmann

    Abstract In the last years a rapid emergence of lexical resources has evolved in the Semantic Web. Whereas most of the linguistic information is already machine-readable, we found that morphological information is mostly absent or only contained in semi-structured strings. An integration of morphemic data has not yet been undertaken due to the lack of existing domain-specific ontologies and explicit

    更新日期:2020-11-27
  • Deploying spatial-stream query answering in C-ITS scenarios
    Semant. Web (IF 3.182) Pub Date : 2020-11-12
    Thomas Eiter; Ryutaro Ichise; Josiane Xavier Parreira; Patrik Schneider; Lihua Zhao

    Cooperative Intelligent Transport Systems (C-ITS) play an important role for providing the means to collect and exchange spatio-temporal data via V2X-based communication between vehicles and the infrastructure, which will become a central enabler for road safety of (semi)-autonomous vehicles. The Local Dynamic Map (LDM) is a key concept for integrating static and streamed data in a spatial context

    更新日期:2020-11-13
  • Network metrics for assessing the quality of entity resolution between multiple datasets
    Semant. Web (IF 3.182) Pub Date : 2020-10-23
    Al Idrissou; Frank van Harmelen; Peter van den Besselaar

    Matching entities between datasets is a crucial step for combining multiple datasets on the semantic web. A rich literature exists on different approaches to this entity resolution problem. However, much less work has been done on how to assess the quality of such entity links once they have been generated. Evaluation methods for link quality are typically limited to either comparison with a ground

    更新日期:2020-10-30
  • A comparative study of methods for a priori prediction of MCQ difficulty
    Semant. Web (IF 3.182) Pub Date : 2020-10-20
    Ghader Kurdi; Jared Leo; Nicolas Matentzoglu; Bijan Parsia; Uli Sattler; Sophie Forge; Gina Donato; Will Dowling

    Successful exams require a balance of easy, medium, and difficult questions. Question difficulty is generally either estimated by an expert or determined after an exam is taken. The latter provides no utility for the generation of new questions and the former is expensive both in terms of time andcost. Additionally, it is not known whether expert prediction is indeed a good proxy for estimating question

    更新日期:2020-10-20
  • Charaterizing RDF graphs through graph-based measures – framework and assessment
    Semant. Web (IF 3.182) Pub Date : 2020-10-20
    Matthäus Zloch; Maribel Acosta; Daniel Hienert; Stefan Conrad; Stefan Dietze

    The topological structure of RDF graphs inherently differs from other types of graphs, like social graphs, due to the pervasive existence of hierarchical relations (TBox), which complement transversal relations (ABox). Graph measures capture such particularities through descriptive statistics. Besides the classical set of measures established in the field of network analysis, such as size and volume

    更新日期:2020-10-20
  • Recursion in SPARQL
    Semant. Web (IF 3.182) Pub Date : 2020-10-19
    Juan Reutter; Adrián Soto; Domagoj Vrgoč

    The need for recursive queries in the Semantic Web setting is becoming more and more apparent with the emergence of datasets where different pieces of information are connected by complicated patterns. This was acknowledged by the W3C committee by the inclusion of property paths in the SPARQL standard. However, as more data becomes available, it is becoming clear that property paths alone are not enough

    更新日期:2020-10-20
  • A survey on knowledge graph embeddings with literals: Which model links better literal-ly?
    Semant. Web (IF 3.182) Pub Date : 2020-10-19
    Genet Asefa Gesese; Russa Biswas; Mehwish Alam; Harald Sack

    Knowledge Graphs (KGs) are composed of structured information about a particular domain in the form of entities and relations. In addition to the structured information KGs help in facilitating interconnectivity and interoperability between different resources represented in the Linked Data Cloud.KGs have been used in a variety of applications such as entity linking, question answering, recommender

    更新日期:2020-10-20
  • Challenge-derived design practices for a semantic gazetteer for medieval and early modern places
    Semant. Web (IF 3.182) Pub Date : 2020-10-19
    Philipp Schneider; Jim Jones; Torsten Hiltmann; Tomi Kauppinen

    In recent years gazetteers based on semantic web technologies were discussed as an effective way to describe, formalize and standardize place data by using contextual information as a method to structure and distinguish places from each other. While research concerning semantic gazetteers with regard to historical places has pointed out the importance of enabling the creation of a global and epoch-spanning

    更新日期:2020-10-20
  • SAREF4INMA: A SAREF extension for the industry and manufacturing domain
    Semant. Web (IF 3.182) Pub Date : 2020-10-16
    Mike de Roode; Alba Fernández-Izquierdo; Laura Daniele; María Poveda-Villalón; Raúl García-Castro

    The IoT landscape is characterized by a fragmentation of standards, platforms and technologies, often scattered among different vertical domains. To prevent the market to continue to be fragmented and power-less, a protocol-independent semantic layer can serve as enabler of interoperability among the various smart devices from different manufacturers that co-exist in a specific industry domain, but

    更新日期:2020-10-17
  • Semantic Node-RED for rapid development of interoperable industrial IoT applications
    Semant. Web (IF 3.182) Pub Date : 2020-10-13
    Aparna Saisree Thuluva; Darko Anicic; Sebastian Rudolph; Malintha Adikari

    The evolution of IoT has revolutionized industrial automation. Industrial devices at every level such as field devices, control devices, enterprise level devices etc., are connected to the Internet, where they can be accessed easily. It has significantly changed the way applications are developed on the industrial automation systems. It led to the paradigm shift where novel IoT application development

    更新日期:2020-10-13
  • Combining chronicle mining and semantics for predictive maintenance in manufacturing processes
    Semant. Web (IF 3.182) Pub Date : 2020-10-13
    Qiushi Cao; Ahmed Samet; Cecilia Zanni-Merk; François de Bertrand de Beuvron; Christoph Reich

    Within manufacturing processes, faults and failures may cause severe economic loss. With the vision of Industry 4.0, artificial intelligence techniques such as data mining play a crucial role in automatic fault and failure prediction. However, due to the heterogeneous nature of industrial data, data mining results normally lack both machine and human-understandable representation and interpretation

    更新日期:2020-10-13
  • Semantic Web of Things for Industry 4.0
    Semant. Web (IF 3.182) Pub Date : 2020-10-13
    Dhavalkumar Thakker; Pankesh Patel; Muhammad Intizar Ali; Tejal Shah

    Abstract Welcome to this special issue of the Semantic Web (SWJ) journal. The special issue compiles four technical contributions that significantly advance the state-of-the-art in Semantic Web of Things for Industry 4.0 including the use of Semantic Web technologies and techniques in Industry 4.0 solutions.

    更新日期:2020-10-13
  • EUCISE-OWL: An ontology-based representation of the Common Information Sharing Environment (CISE) for the maritime domain
    Semant. Web (IF 3.182) Pub Date : 2020-10-13
    Marina Riga; Efstratios Kontopoulos; Konstantinos Ioannidis; Spyridon Kintzios; Stefanos Vrochidis; Ioannis Kompatsiaris

    The timely and efficient cooperation across sectors and borders during maritime crises is paramount for the safety of human lives. Maritime monitoring authorities are now realizing the grave importance of cross-sector and cross-border information sharing. However, this cooperation is compromised bythe diversity of existing systems and the vast volumes of heterogeneous data generated and exchanged during

    更新日期:2020-10-13
  • WarSampo knowledge graph: Finland in the Second World War as Linked Open Data
    Semant. Web (IF 3.182) Pub Date : 2020-10-02
    Mikko Koho; Esko Ikkala; Petri Leskinen; Minna Tamper; Jouni Tuominen; Eero Hyvönen

    The Second World War (WW2) is arguably the most devastating catastrophe of human history, a topic of great interest to not only researchers but the general public. However, data about the Second World War is heterogeneous and distributed in various organizations and countries making it hard to utilize. In order to create aggregated global views of the war, a shared ontology and data infrastructure

    更新日期:2020-10-04
  • BOT: The building topology ontology of the W3C linked building data group
    Semant. Web (IF 3.182) Pub Date : 2020-10-02
    Mads Holten Rasmussen; Maxime Lefrançois; Georg Ferdinand Schneider; Pieter Pauwels

    Actors in the Architecture, Engineering, Construction, Owner and Operation (AECOO) industry traditionally exchange building models as files. The Building Information Modelling (BIM) methodology advocates the seamless exchange of all information between related stakeholders using digital technologies. The ultimate evolution of the methodology, BIM Maturity Level 3, envisions interoperable, distributed

    更新日期:2020-10-04
  • UCQ-Rewritings for disjunctive knowledge and queries with negated atoms
    Semant. Web (IF 3.182) Pub Date : 2020-10-02
    Enrique Matos Alfonso; Alexandros Chortaras; Giorgos Stamou

    In this paper, we study the problem of query rewriting for disjunctive existential rules. Query rewriting is a well-known approach for query answering on knowledge bases with incomplete data. We propose a rewriting technique that uses negative constraints and conjunctive queries to remove the disjunctive components of disjunctive existential rules. This process eventually generates new non-disjunctive

    更新日期:2020-10-04
  • Applying and developing semantic web technologies for exploiting a corpus in history of science: The case study of the Henri Poincaré correspondence
    Semant. Web (IF 3.182) Pub Date : 2020-09-30
    Olivier Bruneau; Nicolas Lasolle; Jean Lieber; Emmanuel Nauer; Siyana Pavlova; Laurent Rollet

    The Henri Poincaré correspondence is a corpus of letters sent and received by this mathematician. The edition of this correspondence is a long-term project begun during the 1990s. Since 1999, a website is devoted to publish online this correspondence with digitized letters. In 2017, it has been decided to reforge this website using Omeka S. This content management system offers useful services but

    更新日期:2020-10-04
  • Understanding the phenomenology of reading through modelling
    Semant. Web (IF 3.182) Pub Date : 2020-09-29
    Alessio Antonini; Mari Carmen Suárez-Figueroa; Alessandro Adamou; Francesca Benatti; François Vignale; Guillaume Gravier; Lucia Lupi

    Large scale cultural heritage datasets and computational methods for the Humanities research framework are the two pillars of Digital Humanities (DH), a research field aiming to expand Humanities studies beyond specific sources and periods to address macro-scale research questions on broad human phenomena. In this regard, the development of machine-readable semantically enriched data models based on

    更新日期:2020-09-30
  • Typology-based semantic labeling of numeric tabular data
    Semant. Web (IF 3.182) Pub Date : 2020-09-28
    Ahmad Alobaid; Emilia Kacprzak; Oscar Corcho

    A lot of tabular data are being published on the Web. Semantic labeling of such data may help in their understanding and exploitation. However, many challenges need to be addressed to do this automatically. With numbers, it can be even harder due to the possible difference in measurement accuracy,rounding errors, and even the frequency of their appearance. Multiple approaches have been proposed in

    更新日期:2020-09-30
  • Link maintenance for integrity in linked open data evolution: Literature survey and open challenges
    Semant. Web (IF 3.182) Pub Date : 2020-09-28
    Andre Gomes Regino; Julio Cesar dos Reis; Rodrigo Bonacin; Ahsan Morshed; Timos Sellis

    RDF data has been extensively deployed describing various types of resources in a structured way. Links between data elements described by RDF models stand for the core of Semantic Web. The rising amount of structured data published in public RDF repositories, also known as Linked Open Data, elucidates the success of the global and unified dataset proposed by the vision of the Semantic Web. Nowadays

    更新日期:2020-09-30
  • Video representation and suspicious event detection using semantic technologies
    Semant. Web (IF 3.182) Pub Date : 2020-09-25
    Ashish Singh Patel; Giovanni Merlino; Dario Bruneo; Antonio Puliafito; O.P. Vyas; Muneendra Ojha

    Storage and analysis of video surveillance data is a significant challenge, requiring video interpretation and event detection in the relevant context. To perform this task, the low-level features including shape, texture, and color information are extracted and represented in symbolic forms. In this work, a methodology is proposed, which extracts the salient features and properties using machine learning

    更新日期:2020-09-25
  • Gravsearch: Transforming SPARQL to query humanities data
    Semant. Web (IF 3.182) Pub Date : 2020-09-23
    Tobias Schweizer; Benjamin Geer

    Abstract RDF triplestores have become an appealing option for storing and publishing humanities data, but available technologies for querying this data have drawbacks that make them unsuitable for many applications. Gravsearch (Virtual Graph Search), a SPARQL transformer developed as part of a web-based API, is designed to support complex searches that are desirable in humanities research, while avoiding

    更新日期:2020-09-25
  • Modeling execution techniques of inscriptions
    Semant. Web (IF 3.182) Pub Date : 2020-09-22
    Pietro Maria Liuzzo; Silvia Evangelisti

    The paper discusses a small ontology to describe the features of the execution techniques of inscriptions, based on a recent contribution discussing the classification methodologies. The modeling is done on the basis of existing recent attempts to model epigraphic documents and not on a general evaluation of existing ontologies. The ontology described is used in parallel to enrich and further structure

    更新日期:2020-09-23
  • An unsupervised approach to disjointness learning based on terminological cluster trees
    Semant. Web (IF 3.182) Pub Date : 2020-09-22
    Giuseppe Rizzo; Claudia d’Amato; Nicola Fanizzi

    In the context of the Semantic Web regarded as a Web of Data, research efforts have been devoted to improving the quality of the ontologies that are used as vocabularies to enable complex services based on automated reasoning. From various surveys it emerges that many domains would require better ontologies that include non-negligible constraints for properly conveying the intended semantics. In this

    更新日期:2020-09-23
  • S-Paths: Set-based visual exploration of linked data driven by semantic paths
    Semant. Web (IF 3.182) Pub Date : 2020-09-16
    Marie Destandau; Caroline Appert; Emmanuel Pietriga

    Meaningful information about an RDF resource can be obtained not only by looking at its properties, but by putting it in the broader context of similar resources. Classic navigation paradigms on the Web of Data that employ a follow-your-nose strategy fail to provide such context, and put strong emphasis on first-level properties, forcing users to drill down in the graph one step at a time. We introduce

    更新日期:2020-09-20
  • OntoAndalus: An ontology of Islamic artefacts for terminological purposes
    Semant. Web (IF 3.182) Pub Date : 2020-09-16
    Bruno Almeida; Rute Costa

    OntoAndalus aims at constituting a shared conceptualisation of the domain within a future multilingual terminological resource targeted at experts and students of Islamic archaeology. The present version of OntoAndalus is aligned with DOLCE+DnS Ultralite (DUL), an established top-level ontology forthe Semantic Web. This article describes the modelling assumptions underlying OntoAndalus, as well as

    更新日期:2020-09-20
  • Introducing the Data Quality Vocabulary (DQV)
    Semant. Web (IF 3.182) Pub Date : 2020-09-16
    Riccardo Albertoni; Antoine Isaac

    The Data Quality Vocabulary (DQV) provides a metadata model for expressing data quality. DQV was developed by the Data on the Web Best Practice (DWBP) Working Group of the World Wide Web Consortium (W3C) between 2013 and 2017. This paper aims at providing a deeper understanding of DQV. It introduces its key design principles, components, and the main discussion points that have been raised in the process

    更新日期:2020-09-20
  • Difficulty-level modeling of ontology-based factual questions
    Semant. Web (IF 3.182) Pub Date : 2020-09-09
    Vinu E. Venugopal; P. Sreenivasa Kumar

    Semantics-based knowledge representations such as ontologies are found to be very useful in automatically generating meaningful factual questions. Determining the difficulty-level of these system-generated questions is helpful to effectively utilize them in various educational and professional applications. The existing approach for predicting the difficulty-level of factual questions utilizes only

    更新日期:2020-09-12
  • RDF graph validation using rule-based reasoning
    Semant. Web (IF 3.182) Pub Date : 2020-09-07
    Ben De Meester; Pieter Heyvaert; Dörthe Arndt; Anastasia Dimou; Ruben Verborgh

    The correct functioning of Semantic Web applications requires that given RDF graphs adhere to an expected shape. This shape depends on the RDF graph and the application’s supported entailments of that graph. During validation, RDF graphs are assessed against sets of constraints, and found violations help refining the RDF graphs. However, existing validation approaches cannot always explain the root

    更新日期:2020-09-08
  • Editorial: Special issue on Semantic eScience: Methods, tools and applications
    Semant. Web (IF 3.182) Pub Date : 2020-08-17
    Daniel Garijo; Natalia Villanueva-Rosales; Tomi Kauppinen

    Abstract Openly shared, available, and accessible scientific resources facilitate tackling grand challenges that our society, organizations, communities and individuals are facing today. Pandemics, climate change, environmental modeling, genomics, or space exploration all create open research questions for which Artificial Intelligence – and Semantic Web in particular – have a unique potential to accelerate

    更新日期:2020-08-19
  • A systematic survey of temporal requirements of bio-health ontologies
    Semant. Web (IF 3.182) Pub Date : 2020-08-07
    Jared Leo; Nicolas Matentzoglu; Uli Sattler; Bijan Parsia

    The Description Logic SROIQ(D), as the logical core of the W3C standard Web Ontology Language (OWL 2), is a widely used formalism for ontologies in the life sciences. Bio-health applications including health-care and life science domains commonly have a need to represent temporal information such as medication frequency or stage-based development. Different classes of temporal phenomena may generate

    更新日期:2020-08-08
  • Survey on complex ontology matching
    Semant. Web (IF 3.182) Pub Date : 2020-08-07
    Elodie Thiéblin; Ollivier Haemmerlé; Nathalie Hernandez; Cassia Trojahn

    Simple ontology alignments, largely studied in the literature, link a single entity of a source ontology to a single entity of a target ontology. A limitation of these alignments is their lack of expressiveness which can be overcome by complex alignments. While diverse state-of-the-art surveys mainly review the matching approaches in general, to the best of our knowledge, there is no study of the specificities

    更新日期:2020-08-08
  • Ontologies for observations and actuations in buildings: A survey
    Semant. Web (IF 3.182) Pub Date : 2020-07-24
    Iker Esnaola-Gonzalez; Jesús Bermúdez; Izaskun Fernandez; Aitor Arnaiz

    Spaces and elements in the built environment have emerged as platforms where materializations of observations and actuations promise to be very profitable. The advent of the Internet of Things (IoT) paves the way to address this challenge but the heterogeneity of the represented knowledge about these artifact systems poses a real problem. Ontologies can be considered as part of the solution to overcome

    更新日期:2020-07-25
  • EDR: A generic approach for the distribution of rule-based reasoning in a Cloud–Fog continuum
    Semant. Web (IF 3.182) Pub Date : 2020-07-24
    Nicolas Seydoux; Khalil Drira; Nathalie Hernandez; Thierry Monteil

    The successful deployment of the Semantic Web of Things (SWoT) requires the adaptation of the Semantic Web principles and technologies to the constraints of the IoT domain, which is the challenging research direction we address here. In this context we promote distributed reasoning approaches in IoT systems by implementing a hybrid deployment of reasoning rules relying on the complementarity of Cloud

    更新日期:2020-07-25
  • ExtruOnt: An ontology for describing a type of manufacturing machine for Industry 4.0 systems
    Semant. Web (IF 3.182) Pub Date : 2020-05-13
    Víctor Julio Ramírez-Durán; Idoia Berges; Arantza Illarramendi

    Semantically rich descriptions of manufacturing machines, offered in a machine-interpretable code, can provide interesting benefits in Industry 4.0 scenarios. However, the lack of that type of descriptions is evident. In this paper we present the development effort made to build an ontology, calledExtruOnt, for describing a type of manufacturing machine, more precisely, a type that performs an extrusion

    更新日期:2020-06-30
  • Findable and reusable workflow data products: A genomic workflow case study
    Semant. Web (IF 3.182) Pub Date : 2020-05-12
    Alban Gaignard; Hala Skaf-Molli; Khalid Belhajjame

    While workflow systems have improved the repeatability of scientific experiments, the value of the processed (intermediate) data have been overlooked so far. In this paper, we argue that the intermediate data products of workflow executions should be seen as first-class objects that need to be curated and published. Not only will this be exploited to save time and resources needed when re-executing

    更新日期:2020-06-30
  • VocBench 3: A collaborative Semantic Web editor for ontologies, thesauri and lexicons
    Semant. Web (IF 3.182) Pub Date : 2020-05-04
    Armando Stellato; Manuel Fiorelli; Andrea Turbati; Tiziano Lorenzetti; Willem van Gemert; Denis Dechandon; Christine Laaboudi-Spoiden; Anikó Gerencsér; Anne Waniart; Eugeniu Costetchi; Johannes Keizer

    VocBench is an open source web platform for the collaborative development of datasets complying with Semantic Web standards. Since its public release – five years ago – as an open source platform, VocBench has attracted a growing user community consisting of public organizations, companies and independent users looking for open source solutions for maintaining their thesauri, code lists and authority

    更新日期:2020-06-30
  • Weather data publication on the LOD using SOSA/SSN ontology
    Semant. Web (IF 3.182) Pub Date : 2020-04-30
    Catherine Roussey; Stephan Bernard; Géraldine André; Daniel Boffety

    This paper presents an RDF dataset of meteorological measurements. The measurements come from one weather station at the Irstea experimental farm located in Montoldre. The measurements have been made from August 2018 until now. They have been transformed and published as Linked Open Data (LOD). Thedata schema is based on the new version of the Semantic Sensor Network ontology. This ontology version

    更新日期:2020-06-30
  • Large-scale semantic exploration of scientific literature using topic-based hashing algorithms
    Semant. Web (IF 3.182) Pub Date : 2020-04-30
    Carlos Badenes-Olmedo; José Luis Redondo-García; Oscar Corcho

    Searching for similar documents and exploring major themes covered across groups of documents are common activities when browsing collections of scientific papers. This manual knowledge-intensive task can become less tedious and even lead to unexpected relevant findings if unsupervised algorithms are applied to help researchers. Most text mining algorithms represent documents in a common feature space

    更新日期:2020-06-30
  • A decade of Semantic Web research through the lenses of a mixed methods approach
    Semant. Web (IF 3.182) Pub Date : 2020-04-23
    Sabrina Kirrane; Marta Sabou; Javier D. Fernández; Francesco Osborne; Cécile Robin; Paul Buitelaar; Enrico Motta; Axel Polleres

    The identification of research topics and trends is an important scientometric activity, as it can help guide the direction of future research. In the Semantic Web area, initially topic and trend detection was primarily performed through qualitative, top-down style approaches, that rely on expert knowledge. More recently, data-driven, bottom-up approaches have been proposed that offer a quantitative

    更新日期:2020-06-30
  • SQuAP-Ont: An ontology of software quality relational factors from financial systems
    Semant. Web (IF 3.182) Pub Date : 2020-04-22
    Paolo Ciancarini; Andrea Giovanni Nuzzolese; Valentina Presutti; Daniel Russo

    Quality, architecture, and process are considered the keystones of software engineering. ISO defines them in three separate standards. However, their interaction has been scarcely studied, so far. The SQuAP model (Software Quality, Architecture, Process) describes twenty-eight main factors that impact on software quality in banking systems, and each factor is described as a relation among some characteristics

    更新日期:2020-06-30
  • Data-driven assessment of structural evolution of RDF graphs
    Semant. Web (IF 3.182) Pub Date : 2020-04-17
    Carlos Bobed; Pierre Maillot; Peggy Cellier; Sébastien Ferré

    Since the birth of the Semantic Web, numerous knowledge bases have appeared. The applications that exploit them rely on the quality of their data through time. In this regard, one of the main dimensions of data quality is conformance to the expected usage of the vocabulary. However, the vocabularyusage (i.e., how classes and properties are actually populated) can vary from one base to another. Moreover

    更新日期:2020-04-17
  • Automatic detection of relation assertion errors and induction of relation constraints
    Semant. Web (IF 3.182) Pub Date : 2020-04-17
    Andre Melo; Heiko Paulheim

    Although the link prediction problem, where missing relation assertions are predicted, has been widely researched, error detection did not receive as much attention. In this paper, we investigate the problem of error detection in relation assertions of knowledge graphs, and we propose an error detection method which relies on path and type features used by a classifier for every relation in the graph

    更新日期:2020-04-17
  • Combining RDF and SPARQL with CP-theories to reason about preferences in a Linked Data setting
    Semant. Web (IF 3.182) Pub Date : 2020-04-14
    Vito Walter Anelli; Renato De Leone; Tommaso Di Noia; Thomas Lukasiewicz; Jessica Rosati

    Preference representation and reasoning play a central role in supporting users with complex and multi-factorial decision processes. In fact, user tastes can be used to filter information and data in a personalized way, thus maximizing their expected utility. Over the years, many frameworks and languages have been proposed to deal with user preferences. Among them, one of the most prominent formalism

    更新日期:2020-04-14
  • Towards a question answering system over the Semantic Web
    Semant. Web (IF 3.182) Pub Date : 2020-04-14
    Dennis Diefenbach; Andreas Both; Kamal Singh; Pierre Maret

    With the development of the Semantic Web, a lot of new structured data has become available on the Web in the form of knowledge bases (KBs). Making this valuable data accessible and usable for end-users is one of the main goals of question answering (QA) over KBs. Most current QA systems query oneKB, in one language (namely English). The existing approaches are not designed to be easily adaptable to

    更新日期:2020-04-14
  • Completeness and soundness guarantees for conjunctive SPARQL queries over RDF data sources with completeness statements
    Semant. Web (IF 3.182) Pub Date : 2020-04-14
    Fariz Darari; Werner Nutt; Simon Razniewski; Sebastian Rudolph

    RDF generally follows the open-world assumption: information is incomplete by default. Consequently, SPARQL queries cannot retrieve with certainty complete answers, and even worse, when they involve negation, it is unclear whether they produce sound answers. Nevertheless, there is hope to lift thislimitation. On many specific topics (e.g., children of Trump, Apollo 11 crew, EU founders), RDF data sources

    更新日期:2020-04-14
  • A comparison of object-triple mapping libraries
    Semant. Web (IF 3.182) Pub Date : 2020-04-14
    Martin Ledvinka; Petr Křemen

    Domain-independent information systems like ontology editors provide only limited usability for non-experts when domain-specific linked data need to be created. On the contrary, domain-specific applications require adequate architecture for data authoring and validation, typically using the object-oriented paradigm. So far, several software libraries mapping the RDF model (representing linked data)

    更新日期:2020-04-14
  • Semantic modeling for engineering data analytics solutions
    Semant. Web (IF 3.182) Pub Date : 2020-04-14
    Madhushi Bandara; Fethi A. Rabhi

    Data Analytics Solution (DAS) engineering often involves multiple tasks from data exploration to result presentation which are applied in various contexts and on different datasets. Semantic modeling based on the open world assumption supports flexible modeling of linked knowledge. The objective ofthis paper is to review existing techniques that leverage semantic web technologies to tackle challenges

    更新日期:2020-04-14
  • Learning expressive linkage rules from sparse data
    Semant. Web (IF 3.182) Pub Date : 2020-04-14
    Petar Petrovski; Christian Bizer

    A central problem in the context of the Web of Data as well as in data integration in general is to identify entities in different data sources that describe the same real-world object. There exists a large body of research on entity resolution. Interestingly, most of the existing research focuseson entity resolution on dense data, meaning data that does not contain too many missing values. This paper

    更新日期:2020-04-14
  • Hybrid reasoning in knowledge graphs: Combing symbolic reasoning and statistical reasoning
    Semant. Web (IF 3.182) Pub Date : 2020-01-31
    Weizhuo Li; Guilin Qi; Qiu Ji

    Knowledge graph, as a backbone of many information systems, has been created to organize the rapidly growing knowledge in a semantical and visualized manner. Symbolic reasoning and statistical reasoning are current mainstream techniques that play important roles in knowledge completion, automatic schema constructing, complex question answering, explanation of AI. However, both of them have their merits

    更新日期:2020-01-31
  • Semantics for Cyber-Physical Systems: A cross-domain perspective
    Semant. Web (IF 3.182) Pub Date : 2020-01-31
    Marta Sabou; Stefan Biffl; Alfred Einfalt; Lukas Krammer; Wolfgang Kastner; Fajar J. Ekaputra

    Modern life is increasingly made more comfortable, efficient, and sustainable by the smart systems that surround us: smart buildings monitor and adjust temperature levels to achieve occupant comfort while optimizing energy consumption; smart energy grids reconfigure dynamically to make the best use of ad-hoc energy produced by a host of distributed energy producers; smart factories can be reconfigured

    更新日期:2020-01-31
  • Ontological challenges to cohabitation with self-taught robots
    Semant. Web (IF 3.182) Pub Date : 2020-01-31
    Stefano Borgo

    When you meet a delivery robot in a narrow street it stops to let you pass. It was built to give you precedence. What happens if you run into a robot that was not trained by or for humans? The existence in our environment of robots which do not abide by human behavioral rules and social systems might sound odd, but is a case we may encounter in the near future. In this paper, self-taught robots are

    更新日期:2020-01-31
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