SPARQLoid - a Querying System using Own Ontology and Ontology Mappings with Reliability
نویسندگان
چکیده
The heterogeneity of ontologies on the web of data is a crucial problem. This paper presents an application called SPARQLoid that uses a query rewriting method to enable users to query any SPARQL endpoint with the user’s own ontology, even when their ontology mappings are not reliable enough. Often ontology matching methods produce mappings with their reliability degree. Based on the given reliability degrees of those mappings, SPARQLoid allows users to query data in the target SPARQL endpoints by using their own (or a specified certain) ontology under a control of sorting order based on their mapping reliability. In this paper, we show a brief demonstration and a comparison to related work.
منابع مشابه
On Implementing a SPARQLoid Query Coding Support – Vocabulary Discovery for Queries with Weighted Ontology Mappings
When writing SPARQL queries that will access to multiple data sources (i.e., a federated querying), one has to know the corresponding vocabulary where one can name the property URIs to be used in the query, and to know the exact URIs for such vocabulary is not easy task since those vocabularies are often separately defined and managed. To avoid such a situation, the techniques to use some ontol...
متن کاملToward better debugging support on extended SPARQL queries with on-the-fly ontology mapping generation
SPARQLoid is an extended syntax of SPAQL to utilize reliability degrees in weighted ontology mappings as well as some controls of priorities to be searched based on the weights associated to the mappings. In this paper, we demonstrate a debugging support system for the use of such an extended SPARQL queries.
متن کاملDeveloping a BIM-based Spatial Ontology for Semantic Querying of 3D Property Information
With the growing dominance of complex and multi-level urban structures, current cadastral systems, which are often developed based on 2D representations, are not capable of providing unambiguous spatial information about urban properties. Therefore, the concept of 3D cadastre is proposed to support 3D digital representation of land and properties and facilitate the communication of legal owners...
متن کاملOntology Alignment for Geospatial Information Systems∗
The problem of querying heterogeneous geospatial databases in distributed environment can be resolved through alignment of ontologies. That is establishing mappings between related concepts in the different ontologies without combining them. Ontology alignment facilitates the propagation of a single query written in terms of a specific ontology to other databases in terms of their own ontologie...
متن کاملQuery Architecture Expansion in Web Using Fuzzy Multi Domain Ontology
Due to the increasing web, there are many challenges to establish a general framework for data mining and retrieving structured data from the Web. Creating an ontology is a step towards solving this problem. The ontology raises the main entity and the concept of any data in data mining. In this paper, we tried to propose a method for applying the "meaning" of the search system, But the problem ...
متن کامل