Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Information systems

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

This book constitutes the refereed proceedings of the 20th International Conference on The Semantic Web, ESWC 2023, held in Hersonissos, Crete, Greece, during May 28–June 1, 2023. The 41 full papers included in this book were carefully reviewed and selected from 167 submissions. They are organized in topical sections as follows: research, resource and in-use.

Semantic Web --- Information storage and retrieval systems. --- Information Storage and Retrieval. --- Automatic data storage --- Automatic information retrieval --- Automation in documentation --- Computer-based information systems --- Data processing systems --- Data storage and retrieval systems --- Discovery systems, Information --- Information discovery systems --- Information processing systems --- Information retrieval systems --- Machine data storage and retrieval --- Mechanized information storage and retrieval systems --- Computer systems --- Electronic information resources --- Data centers --- Digital libraries --- Information organization --- Information retrieval --- Engineering --- Technology & Engineering

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Voice assistants are used to answer simple questions from the user. There is no exchange of data between different integrations to answer complex questions. Using Linked Open Data can enable to share knowledge between these different datasets and get answers to complex questions. This thesis will investigate if a constrained device can be used to generate Linked Data from the General Transit Feed Specification (GTFS) and provide an answer to a complex journey using multiple public transport agencies. Since GTFS data is not published as Linked Data, a pipeline must be created to transform the heterogeneous data from its original source to Linked Data. There are two methods to accomplish this: materialization and virtualization. Materialization creates a copy of the data in the Linked Data format, where virtualization translates the posed query to the heterogeneous data format and translates the response back into Linked Data. Virtualization does not require a full copy of the dataset. However, materialization supports a broader range of heterogeneous data formats, and will be used for this research. The size of the GTFS data and the available tools to generate the Linked Data showed that the constrained device does not have the resources to convert the GTFS data. The work is divided so that a separate device with more resources, a server or computer with better resources, is in charge of transforming the GTFS data. The GTFS-RT data is realtime data that contains the details of any delays or cancellations. This data is smaller than the full GTFS data, therefor more suitable for the constrained device to process and update the GTFS data on the server. Another bottleneck we encountered was composing queries to retrieve the information about the different transfers on the journey. Using separate queries for each part gives fast results, whereas combining them into a single query significantly prolongs the processing time. Based on the total time required to generate the Linked Data from GTFS data on a separate computer and generating the realtime updates with a constrained device, we can conclude that this approach cannot compete with the response time of traditional voice assistants. Our process would lead to triggering the timeout on the voice assistant, indicating that the request exceeds the acceptable processing duration.

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

The two-volume set LNCS 14664 and 14665 constitutes the refereed proceedings of the 21st International Conference on The Semantic Web, ESWC 2024, held in Hersonissos, Crete, Greece, during May 26-30, 2024. The 32 full papers presented were carefully reviewed and selected from 138 submissions. They focus on all aspects of theoretical, analytical, and empirical aspects of the semantic web, semantic technologies, knowledge graphs and semantics on the web in general.

Information storage and retrieval systems. --- Application software. --- Algorithms. --- Machine learning. --- Expert systems (Computer science). --- Information technology --- Information Storage and Retrieval. --- Computer and Information Systems Applications. --- Design and Analysis of Algorithms. --- Machine Learning. --- Knowledge Based Systems. --- Computer Application in Administrative Data Processing. --- Management.

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Information retrieval --- Office management --- Computer science --- Programming --- Computer architecture. Operating systems --- Information systems --- Computer. Automation --- KBS (knowledge based system) --- applicatiebeheer --- apps --- informatica --- bedrijfsadministratie --- programmeren (informatica) --- informatiesystemen --- informatietechnologie --- algoritmen --- architectuur (informatica)