The SM9 algorithm is an Identity-Based Encryption (IBE) independently made by China. existing searchable encryption scheme cannot be effective against insider keyword guessing attacks and violates users’ data privacy. This article utilizes the method to propose a Registered Public Keyword Searchable based on (RKSE-SM9), which uses user keys in registration algorithm. For RKSE-SM9 generate ciphe...

In this paper, we study how to support group-by and aggregate functions in XML keyword search. It goes beyond the simple keyword query, and raises several challenges including: (1) how to address the keyword ambiguity problem when interpreting a keyword query; (2) how to identify duplicated objects and relationships in order to guarantee the correctness of the results of aggregation functions; ...

Keyword search has been for several years the most popular technique for retrieving information over semistructured data on the web. The reason of this unprecedented success is well known and twofold: (1) the user does not need to master a complex query language to specify her requests for data, and (2) she does not need to have any knowledge of the structure of the data sources. However, these...

In this paper, we propose an utterance verification-based postprocessing in online keyword recognition for multimedia content retrieval. The proposed post-processing technique verifies whether a candidate keyword segment can be categorized as a keyword. For this work, we employ a confidence measure based on the recognition results. In keyword recognition experiments, our approach achieved bette...

In this article, joint medical and data analysis expertise is brought to bear using contrasting data analysis methods and the WOWA aggregation operator to solve a difficult medical diagnosis problem, that of sleep apnea syndrome screening. We describe a method of calculating the relevance and reliability weights used by the WOWA operator. Source URL: https://www.iiia.csic.es/en/node/54977 Links...

We study the problem of keyword search in which a server contains various multimedia contents and a user of server wishes to retrieve some multimedia item containing specific keywords without revealing to the server which item it is. Recently, Ogata and Kurosawa introduced an interesting keyword search scheme called oblivious keyword search by using the notion of oblivious transfer. However, on...

Recently, a great deal of attention has been focusing on processing keyword search over XML and XML streams. The keyword search is simple and provides a user-friendly way of retrieving required data from an XML data. Though its popularity, there is a concern over its efficiency. For this reason, several methods have been proposed to enable keyword search over XML streams. However, most of them ...

This paper introduces keyword extraction for Punjabi language.

Keywords are index terms that contain most important information. Automatic keyword extraction is the task to identify a small set of words , keyphrases or keywords from a document that can describe the meaning of document. Keyword extraction is considered as core technology of all automatic processing for text materials. In this paper, a Survey of Keyword Extraction techniques have been presen...