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Evaluating Instance-based Matching of Web Directories (2008)

by S Massmann, E Rahm
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Generic Schema Matching, Ten Years Later

by Philip A. Bernstein, Jayant Madhavan, Erhard Rahm
"... In a paper published in the 2001 VLDB Conference, we proposed treating generic schema matching as an independent problem. We developed a taxonomy of existing techniques, a new schema matching algorithm, and an approach to comparative evaluation. Since then, the field has grown into a major research ..."
Abstract - Cited by 15 (0 self) - Add to MetaCart
In a paper published in the 2001 VLDB Conference, we proposed treating generic schema matching as an independent problem. We developed a taxonomy of existing techniques, a new schema matching algorithm, and an approach to comparative evaluation. Since then, the field has grown into a major research topic. We briefly summarize the new techniques that have been developed and applications of the techniques in the commercial world. We conclude by discussing future trends and recommendations for further work. 1.
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... of a schema element are grouped into a document that is then matched with other such documents based on the information retrieval measure TF-IDF (term frequency times inverse document frequency) [44]=-=[49]-=-. � Document link similarity – where concepts in two ontologies are regarded as similar if the entities referring to those concepts are similar [42]. Strategies have been proposed to flexibly combine ...

Evolution of the COMA Match System

by Sabine Massmann, Salvatore Raunich, David Aumüller, Patrick Arnold, Erhard Rahm
"... Abstract. The schema and ontology matching systems COMA and COMA++ are widely used in the community as a basis for comparison of new match approaches. We give an overview of the evolution of COMA during the last decade. In particular we discuss lessons learned on strong points and remaining weakness ..."
Abstract - Cited by 8 (2 self) - Add to MetaCart
Abstract. The schema and ontology matching systems COMA and COMA++ are widely used in the community as a basis for comparison of new match approaches. We give an overview of the evolution of COMA during the last decade. In particular we discuss lessons learned on strong points and remaining weaknesses. Furthermore, we outline the design and functionality of the upcoming COMA 3.0. 1
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....D. Thesis of Hong Hai Do [7]. 2006 Support for instance-based matching. Participation at OAEI contest [17]. 2007/08 Further evaluations with larger and more diverse models, including web directories =-=[10, 18]-=-. Use of COMA++ within the QuickMig project [11]. Web edition. 2010/11 Redesign and development of COMA 3.0. The development of COMA started in 2001 and was influenced by the findings and recommendati...

Matching Large Ontologies Based on Reduction Anchors

by Peng Wang, Yuming Zhou, Baowen Xu - PROCEEDINGS OF THE TWENTY-SECOND INTERNATIONAL JOINT CONFERENCE ON ARTIFICIAL INTELLIGENCE
"... Matching large ontologies is a challenge due to the high time complexity. This paper proposes a new matching method for large ontologies based on reduction anchors. This method has a distinct advantage over the divide-and-conquer methods because it dose not need to partition large ontologies. In par ..."
Abstract - Cited by 6 (0 self) - Add to MetaCart
Matching large ontologies is a challenge due to the high time complexity. This paper proposes a new matching method for large ontologies based on reduction anchors. This method has a distinct advantage over the divide-and-conquer methods because it dose not need to partition large ontologies. In particular, two kinds of reduction anchors, positive and negative reduction anchors, are proposed to reduce the time complexity in matching. Positive reduction anchors use the concept hierarchy to predict the ignorable similarity calculations. Negative reduction anchors use the locality of matching to predict the ignorable similarity calculations. Our experimental results on the real world data sets show that the proposed method is efficient for matching large ontologies.

Review of Ontology Matching Approaches and Challenges

by Sarawat Anam, Yang Sok Kim, Byeong Ho Kang, Qing Liu , 2015
"... Ontology mapping aims to solve the semantic heterogeneity problems such as ambiguous entity names, different entity granularity, incomparable categorization, and various instances of different ontologies. The mapping helps to search or query data from different sources. Ontology mapping is necessary ..."
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Ontology mapping aims to solve the semantic heterogeneity problems such as ambiguous entity names, different entity granularity, incomparable categorization, and various instances of different ontologies. The mapping helps to search or query data from different sources. Ontology mapping is necessary in many applications such as data integration, ontology evolution, data warehousing, e-commerce and data exchange in various domains such as purchase order, health, music and e-commerce. It is performed by ontology matching approaches that find semantic correspondences between ontology entities. In this paper, we review state of the art ontology matching approaches. We describe the approaches according to instance-based, schema-based, instance and schema-based, usage-based, element-level, and structure-level. The analysis of the existing approaches will assist us in revealing some challenges in ontology mapping such as handling ontology matching errors, user involvement and reusing previous match operations. We explain the way of handling the challenges using new strategy in order to increase the performance.

Feature-based Clustering of Web Data Sources

by Alsayed Algergawy
"... The proliferation of web data sources increasingly demands the integration of these sources. To facilitate the integration process, a pre-analysis step is required to classify and group data sources into their correct domains. In this paper, we propose a feature-based clustering approach for cluster ..."
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The proliferation of web data sources increasingly demands the integration of these sources. To facilitate the integration process, a pre-analysis step is required to classify and group data sources into their correct domains. In this paper, we propose a feature-based clustering approach for clustering web data sources without any human intervention and based only on features extracted from the source schemas. In particular, we make use of both linguistic and structural schema features. We experimentally demonstrate the effectiveness of the proposed approach in terms of both the clustering quality and runtime.
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...rom different domains and represented in different formats. Series 1 contains five XML schemas for purchase orders (PO) taken from [4]. Series 2 includes five ontologies from the Web directory domain =-=[8]-=-. Series 3 contains four XML schemas from [10] belonging to two different domains. More details about data sets in Table 1 can be found in [4, 8]. 4.2 Experimental Results We present results for three...

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