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information from encrypted big data. In this paper, we provide a novel keyword search method to enable customers easily searching keywords from encryption-protection data. Moreover, the encrypted big data could be managed by different type that was assigned by data owner. Moreover, the access right can be delegated to others
Graph keyword search is the process of extracting small subgraphs that contain a set of query keywords from a graph. This problem is challenging because there are many constraints, including distance constraint, keyword constraint, search time constraint, index size constraint, and memory constraint, while the size of
Keyword search provides a uniform way of accessing the vast volume of structured and unstructured data present in many enterprises. Existing research on improving the effectiveness of the keyword search has largely focused on result ranking mechanisms, with little consideration given to user feedback. We are working
In the big data era, duplicated copies of data may be generated by various smart devices. Although convergent encryption has been extensively adopted for secure deduplication, it is still very challenging to efficiently and reliably manage the convergent keys and support keyword search over encrypted data. This paper
efficient solutions over encrypted documents remains difficult. In this paper, we investigate the problem of processing a large amount of encrypted documents in XML-like formats where a user may wish to search or compute based on certain elements in the XML tree. Our solution makes use of index tables to allow for fast keyword
To effectively promote the development of national science and technology research, and evaluate the impact that emerging technologies on society culture and people's livelihood by taking into account the economic and social factors, this study has conducted feasibility analysis on evaluation of impact of science and technology on Taiwan. It establishes the parameters for such evaluation including:...
Search engine is one of the mostly-used big data applications. However, search system varies in different platforms and fields, and there are few approaches to evaluate its quality. Search engine for online shopping systems combines text search and classification-based retrieval. It is more difficult to validate and evaluate quality since there are no definite quality standards or testing methods...
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