With the increasing volumes of data, access to the Linked Open data (LOD) becomes a challenging task. Current LOD search engines provide flat result lists, which is not an efficient access method to the Web of data (W...
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With the increasing volumes of data, access to the Linked Open data (LOD) becomes a challenging task. Current LOD search engines provide flat result lists, which is not an efficient access method to the Web of data (WoD). In this demo, we introduce a novel and scalable concept-based search mechanism on the WoD, which allows searching based on meaning of objects. In particular, the retrieved resources are dynamically categorized into UMBEL vocabulary concepts (topics) using a novel fuzzy retrieval model and resources with the same concepts are grouped together to form categories, which we call concept lenses. In addition, search results are presented with hierarchy of categories and concept lenses for easy access to the LOD. Such categorization enables concept-based browsing of the retrieved results aligned to users' intent or interests. Results categorization can also be used to support more effective personalized presentation of search results.
It is becoming increasingly important to facilitate the integrated management of user information. Exchanging user information across heterogeneous systems has many benefits, particularly in enhancing the quality and ...
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ISBN:
(纸本)9781450313353
It is becoming increasingly important to facilitate the integrated management of user information. Exchanging user information across heterogeneous systems has many benefits, particularly in enhancing the quality and quantity of user information available for personalization. One common approach to user model interoperability is the use of mapping tools to manually build rich executable mappings between user models. A key problem with existing approaches is that the mapping tools are often too generic for these specialized tasks and do not provide any support to an administrator mapping in a specific domain such as user models. This paper presents a novel approach to user model interoperability which lowers the complexity and provides support to administrators in completing user model mappings. The domain-aware approach to user model interoperability incorporates interchangeable domain knowledge directly into the integration tools. This approach was implemented in a system called FUMES which is a mapping creation and execution environment that includes two domain-aware mechanisms;a canonical user model and user model mapping types. FUMES was deployed in an integration of existing user models and the domain-aware approach was then evaluated in a user study. The evaluation consisted of a direct comparison with a generic approach to user model interoperability which was applied using the commercial mapping tool, Altova Mapforce. The results of this evaluation demonstrate improvements in mapping accuracy and usability when using the domain-aware approach compared to the generic mapping approach. Copyright 2012 ACM.
Personalised Web information systems have in recent years been evolving to provide richer and more tailored experiences for users than ever before. In order to provide even more interactive experiences as well as to a...
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Web information systems developers are increasingly seeking apply a 'Web as a Platform' based approach in which web based content and web services are integrated to provide the platform and environment feature...
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Ontology matching and mapping is of critical importance to effective consumption of distributed and heterogeneous data-sets in today's Web of data. Since 2004 the Ontology Alignment Evaluation Initiative (OAEI) pr...
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Ontology matching and mapping is of critical importance to effective consumption of distributed and heterogeneous data-sets in today's Web of data. Since 2004 the Ontology Alignment Evaluation Initiative (OAEI) provides a number of complex challenges to evaluate the performance of the increasing number of matching tools and methods. This leads to the question how the individual OAEI challenges and the individual alignment results can be documented best for effective online consumption, management and further analysis. In this paper, we argue that the current documentation of alignment creation lifecycle aspects within OAEI would benefit from more formal model support. In this paper we present a case study to show how our ontology-based meta-data model for ontology mapping reuse (OM2R) can be applied for the OAEI to document alignment challenges and some quantification on the likely benefits in terms of helping challenge administrators and participants create consistent documentation in terms of high correctness and less inconsistent statements as well as results that are explicit, predictable and easy to interpret.
We present an analysis of the publication and citation networks of all previous editions of the three conferences most relevant to the FCA community: ICFCA, ICCS and CLA. Using data mining methods from FCA and graph a...
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One to one correspondences between entities are not always sufficient to describe the true relationship between related entities in diverse ontologies, and complex correspondences are needed instead. We demonstrate th...
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One to one correspondences between entities are not always sufficient to describe the true relationship between related entities in diverse ontologies, and complex correspondences are needed instead. We demonstrate the types of complex correspondence occurring between two LOD sources and compare techniques for discovering these complex correspondences.
Despite the recent interest in extending Adaptive Hypermedia beyond the closed corpus domain and into the open corpus world of the web, many current approaches are limited by their reliance on closed metadata model re...
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ISBN:
(纸本)9781450313353
Despite the recent interest in extending Adaptive Hypermedia beyond the closed corpus domain and into the open corpus world of the web, many current approaches are limited by their reliance on closed metadata model repositories. The need to produce large quantities of high quality metadata is an expensive task which results in silos of high quality metadata. These silos are often underutilized due to the proprietary nature of the content described by the metadata and the perceived value of the metadata itself. Meanwhile, the Linked Open data movement is promoting a pragmatic approach to exposing, sharing and connecting pieces of machine-readable data and knowledge on the WWW using an agreed set of best practices. In this paper we identify the potential issues that arise from building personalization systems based on Linked Open data.
This paper presents an anatomy of Hypertext 2011 - focusing on the dynamic and static behavior of the participants. We consider data collected by the CONFERATOR system at the conference, and provide statistics concern...
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ISBN:
(纸本)9781450313353
This paper presents an anatomy of Hypertext 2011 - focusing on the dynamic and static behavior of the participants. We consider data collected by the CONFERATOR system at the conference, and provide statistics concerning participants, presenters, session chairs, different communities, and according roles. Additionally, we perform an in-depth analysis of these actors during the conference concerning their communication and track visiting behavior. Copyright 2012 ACM.
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