Journal of Web Semantics最新文献

MobiRDF: A cloud-based collaborative editing service for mobile RDF data sharing

IF 2.1 3区计算机科学

Journal of Web Semantics Pub Date : 2025-02-17 DOI: 10.1016/j.websem.2025.100864

Nadir Guetmi , Abdessamad Imine , Moulay Driss Mechaoui

{"title":"MobiRDF: A cloud-based collaborative editing service for mobile RDF data sharing","authors":"Nadir Guetmi , Abdessamad Imine , Moulay Driss Mechaoui","doi":"10.1016/j.websem.2025.100864","DOIUrl":"10.1016/j.websem.2025.100864","url":null,"abstract":"<div><div>In this paper, we present <span>MobiRDF</span>, a novel cloud-based approach designed for the efficient and scalable management of RDF data, enabling real-time sharing and editing. <span>MobiRDF</span> offers two main services: <em>(i) Partial Replication of RDF Graphs</em>: This service facilitates the selective replication of RDF graphs on mobile devices, addressing their inherent resource limitations. Our partial graph selector allows using only the useful data requested by the user from the RDF graph instead of storing the entire RDF graph, which enables efficient data storage and retrieval. <em>(ii) Collaboration Protocol</em>: This protocol provides synchronization mechanisms for collaborative work in a fully decentralized manner. It uses commutativity-based consistency model to maintain the consistency of the shared RDF graph, ensuring seamless collaboration among users. The heavier computational tasks, such as dynamic group management, synchronization merging, and reasoning processes, are managed in the Cloud, optimizing the performance of resource-constrained mobile devices. The key novelty of <span>MobiRDF</span> is its ability to ensure both syntactic and semantic consistency of shared RDF data, through reasoning processes using the Closed-World Assumption (CWA) for inferring new triples. Experimental evaluations show that <span>MobiRDF</span> is efficient in terms of network bandwidth and energy consumption, validating its effectiveness in real-world scenarios.</div></div>","PeriodicalId":49951,"journal":{"name":"Journal of Web Semantics","volume":"86 ","pages":"Article 100864"},"PeriodicalIF":2.1,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143463946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Two ontology design patterns in the domain of collections

IF 2.1 3区计算机科学

Journal of Web Semantics Pub Date : 2025-02-15 DOI: 10.1016/j.websem.2025.100863

Idoia Berges, Arantza Illarramendi

{"title":"Two ontology design patterns in the domain of collections","authors":"Idoia Berges, Arantza Illarramendi","doi":"10.1016/j.websem.2025.100863","DOIUrl":"10.1016/j.websem.2025.100863","url":null,"abstract":"<div><div>Collections are objects used to arrange, into a single unit, multiple data items that form a natural group. Different types of collections exist, due to different constraints based on whether or not they impose an order on their elements and whether or not they allow repetition of elements. Any of them are easily found in several domains of our everyday life. For instance, a deck of cards, the prime divisors of a number or the teams that compete in a championship can be seen as a collection. Thus, an effective modeling of collections is a recurring issue in information management.</div><div>In the ontology design field, recurring modeling problems can be addressed by the use of Ontology Design Patterns (ODPs). In the case of collections, ODPs have been proposed for representing sequences, lists, sets and bags. However, none of these patterns are completely adequate for representing collections of ordered elements without repetition. In this paper we present an ODP for representing that notion, which we have named <em>Permutation</em>. Moreover, another ODP named <em>ListOfPermutations</em> is also introduced, which allows to represent how the order of a <em>Permutation</em> varies along time. Because not all constraints required by these ODPs can be represented in OWL 2, SHACL shapes have been used in their definitions.</div></div>","PeriodicalId":49951,"journal":{"name":"Journal of Web Semantics","volume":"85 ","pages":"Article 100863"},"PeriodicalIF":2.1,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143445381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Accelerating knowledge graph and ontology engineering with large language models

IF 2.1 3区计算机科学

Journal of Web Semantics Pub Date : 2025-02-06 DOI: 10.1016/j.websem.2025.100862

Cogan Shimizu , Pascal Hitzler

引用次数: 0

Logic Augmented Generation

IF 2.1 3区计算机科学

Journal of Web Semantics Pub Date : 2025-01-18 DOI: 10.1016/j.websem.2024.100859

Aldo Gangemi , Andrea Giovanni Nuzzolese

{"title":"Logic Augmented Generation","authors":"Aldo Gangemi , Andrea Giovanni Nuzzolese","doi":"10.1016/j.websem.2024.100859","DOIUrl":"10.1016/j.websem.2024.100859","url":null,"abstract":"<div><div>Semantic Knowledge Graphs (SKG) face challenges with scalability, flexibility, contextual understanding, and handling unstructured or ambiguous information. However, they offer formal and structured knowledge enabling highly interpretable and reliable results by means of reasoning and querying. Large Language Models (LLMs) may overcome those limitations, making them suitable in open-ended tasks and unstructured environments. Nevertheless, LLMs are hardly interpretable and often unreliable. To take the best out of LLMs and SKGs, we envision Logic Augmented Generation (LAG) to combine the benefits of the two worlds. LAG uses LLMs as Reactive Continuous Knowledge Graphs that can generate potentially infinite relations and tacit knowledge on-demand. LAG uses SKGs to inject a discrete heuristic dimension with clear logical and factual boundaries. We exemplify LAG in two tasks of collective intelligence, i.e., medical diagnostics and climate projections. Understanding the properties and limitations of LAG, which are still mostly unknown, is of utmost importance for enabling a variety of tasks involving tacit knowledge in order to provide interpretable and effective results.</div></div>","PeriodicalId":49951,"journal":{"name":"Journal of Web Semantics","volume":"85 ","pages":"Article 100859"},"PeriodicalIF":2.1,"publicationDate":"2025-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143165568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Knowledge Graphs as a source of trust for LLM-powered enterprise question answering

IF 2.1 3区计算机科学

Journal of Web Semantics Pub Date : 2025-01-15 DOI: 10.1016/j.websem.2024.100858

Juan Sequeda, Dean Allemang, Bryon Jacob

引用次数: 0

The ESW of Wikidata: Exploratory search workflows on Knowledge Graphs

IF 2.1 3区计算机科学

Journal of Web Semantics Pub Date : 2025-01-04 DOI: 10.1016/j.websem.2024.100860

Matteo Lissandrini , Gianmarco Prando , Gianmaria Silvello

{"title":"The ESW of Wikidata: Exploratory search workflows on Knowledge Graphs","authors":"Matteo Lissandrini , Gianmarco Prando , Gianmaria Silvello","doi":"10.1016/j.websem.2024.100860","DOIUrl":"10.1016/j.websem.2024.100860","url":null,"abstract":"<div><div>Exploratory search on Knowledge Graphs (KGs) arises when a user needs to understand and extract insights from an unfamiliar KG. In these exploratory sessions, the users issue a series of queries to identify relevant portions of the KG that can answer their questions, with each query answer informing the formulation of the next query. Despite the widespread adoption of KGs, the needs of current KG exploration use cases are not well understood. This work presents the “Exploratory Search Workflows” (ESW) collection focusing on real-world exploration sessions of an open-domain KG, Wikidata, conducted by 57 M.Sc. Computer Engineering students in two advanced Graph Database course editions. This resource includes 234 real exploratory workflows, each containing an average of 45 SPARQL queries and reference workflows that serve as gold-standard solutions to the proposed tasks. The ESW collection is also available as an RDF graph and accessible via a public SPARQL endpoint. It allows for analysis of real user sessions, understanding query evolution and complexity, and serves as the first query benchmark for KG management systems for exploratory search.</div></div>","PeriodicalId":49951,"journal":{"name":"Journal of Web Semantics","volume":"85 ","pages":"Article 100860"},"PeriodicalIF":2.1,"publicationDate":"2025-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143165570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Knowledge graph based entity selection framework for ad-hoc retrieval

IF 2.1 3区计算机科学

Journal of Web Semantics Pub Date : 2025-01-01 DOI: 10.1016/j.websem.2024.100848

Pankaj Singh , Plaban Kumar Bhowmick

{"title":"Knowledge graph based entity selection framework for ad-hoc retrieval","authors":"Pankaj Singh , Plaban Kumar Bhowmick","doi":"10.1016/j.websem.2024.100848","DOIUrl":"10.1016/j.websem.2024.100848","url":null,"abstract":"<div><div>Recent entity-based retrieval models utilizing knowledge bases have shown significant improvement in ad-hoc retrieval. However, a lack of coherence between candidate entities can lead to query intent drift at retrieval time. To address this issue, we present an entity selection algorithm that utilizes a graph clustering framework to discover the semantics between entities and encompass the query with highly coherent entities accumulated from different resources, including knowledge bases, and pseudo-relevance feedback documents. Through this work, we propose: (1) An entity acquisition strategy to systematically acquire coherent entities for query expansion. (2) We propose a graph representation of entities to capture the coherence between entities where nodes correspond to the entities and edges represent semantic relatedness between entities. (3) We propose two different entity ranking approaches to select candidate entities based on the coherence with query entities and other coherent entities. A set of experiments on five TREC collections: ClueWeb09B, ClueWeb12B, Robust04, GOV2, and MS-Marco dataset under document retrieval task were conducted to verify the proposed algorithm’s performance. The reported results indicated that the proposed methodology outperforms existing state-of-the-art retrieval approaches in terms of MAP, NDCG, and P@20. The code and relevant data are available in <span><span>https://github.com/pankajkashyap65/KnowledgeGraph</span><svg><path></path></svg></span>.</div></div>","PeriodicalId":49951,"journal":{"name":"Journal of Web Semantics","volume":"84 ","pages":"Article 100848"},"PeriodicalIF":2.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143161137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Leveraging Knowledge Graphs for AI System Auditing and Transparency

IF 2.1 3区计算机科学

Journal of Web Semantics Pub Date : 2025-01-01 DOI: 10.1016/j.websem.2024.100849

Laura Waltersdorfer , Marta Sabou

引用次数: 0

Process Knowledge Graphs (PKG): Towards unpacking and repacking AI applications

IF 2.1 3区计算机科学

Journal of Web Semantics Pub Date : 2025-01-01 DOI: 10.1016/j.websem.2024.100846

Enrico Daga

引用次数: 0

Procedural knowledge management in Industry 5.0: Challenges and opportunities for knowledge graphs

IF 2.1 3区计算机科学

Journal of Web Semantics Pub Date : 2025-01-01 DOI: 10.1016/j.websem.2024.100850

Irene Celino, Valentina Anita Carriero, Antonia Azzini, Ilaria Baroni, Mario Scrocca

引用次数: 0