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With the explosive growth of big data, data-intensive analysis services need a large data storage and high efficient parallel query processing techniques in cloud using lower-end machines, because most organizations adopt inexpensive low-end clusters. A key challenge is to optimize query processing in such a cloud environment. In this paper, we present a new hybrid data access architecture, called...
Internet has become an excellent ecommerce platform for bringing together large numbers of buyers and sellers across wide geographic regions. Trust and reputation systems represent a. significant trend in decision support for Internet mediated service provision. However, most existing work assumes that all users have the same trust metrics, but in real life different users often have different preference...
With the wide use of web services over the world, an effective and efficient search engine becomes necessary. In this paper, we analyzed the limitation of search method using traditional UDDI, and make it in IR-style and take advantage of approximate string matching. Motivated by the feature of WSDL files which define the interfaces of web services, we make operations defined in WSDL files which compose...
Result integrating is a key component for keyword querying across heterogeneous databases. Once the results from various search engines are collected, the search engine merges them into a single ranked list. In this paper, firstly, we present a novel model of searching, which the database is an undirected graph and results are modeled as answer trees that match individual keywords in the query. Secondly,...
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