The Experts below are selected from a list of 4371 Experts worldwide ranked by ideXlab platform
Lu, Song Feng - One of the best experts on this subject based on the ideXlab platform.
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PUBLIC KEY ENCRYPTION WITH CONJUNCTIVE FIELD FREE Keyword SEARCH SCHEME
'CIRWOLRD', 2016Co-Authors: Ali, Fairouz Sher, Lu, Song FengAbstract:Searchable encryption allows a remote server to search over encrypted documents without knowing the sensitive data contents. Prior searchable symmetric encryption schemes focus on single Keyword search. Conjunctive Keyword Searches (CKS) schemes improve system usability by retrieving the matched documents. In this type of search, the user has to repeatedly perform the search protocol for many times. Most of existent (CKS) schemes use conjunctive Keyword searches with fixed Position Keyword fields, this type of search is not useful for many applications, such as unstructured text. In our paper, we propose a new public key encryption scheme based on bilinear pairings, the scheme supports conjunctive Keyword search queries on encrypted data without needing to specify the Positions of the Keywords where the Keywords can be in any arbitrary order. Instead of giving the server one trapdoor for each Keyword in the conjunction set, we use a bilinear map per a set of combined Keywords to make them regarded as one Keyword. In another meaning, the proposed method will retrieve the data in one round of communication between the user and server. Furthermore, the search process could not reveal any information about the number of Keywords in the query expression. Through analysis section we determine how such scheme could be used to guarantee fast and secure access to the database
Ali, Fairouz Sher - One of the best experts on this subject based on the ideXlab platform.
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PUBLIC KEY ENCRYPTION WITH CONJUNCTIVE FIELD FREE Keyword SEARCH SCHEME
'CIRWOLRD', 2016Co-Authors: Ali, Fairouz Sher, Lu, Song FengAbstract:Searchable encryption allows a remote server to search over encrypted documents without knowing the sensitive data contents. Prior searchable symmetric encryption schemes focus on single Keyword search. Conjunctive Keyword Searches (CKS) schemes improve system usability by retrieving the matched documents. In this type of search, the user has to repeatedly perform the search protocol for many times. Most of existent (CKS) schemes use conjunctive Keyword searches with fixed Position Keyword fields, this type of search is not useful for many applications, such as unstructured text. In our paper, we propose a new public key encryption scheme based on bilinear pairings, the scheme supports conjunctive Keyword search queries on encrypted data without needing to specify the Positions of the Keywords where the Keywords can be in any arbitrary order. Instead of giving the server one trapdoor for each Keyword in the conjunction set, we use a bilinear map per a set of combined Keywords to make them regarded as one Keyword. In another meaning, the proposed method will retrieve the data in one round of communication between the user and server. Furthermore, the search process could not reveal any information about the number of Keywords in the query expression. Through analysis section we determine how such scheme could be used to guarantee fast and secure access to the database
Eric J. Karson - One of the best experts on this subject based on the ideXlab platform.
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Search advertising placement strategy: Exploring the efficacy of the conventional wisdom
Information & Management, 2011Co-Authors: David P. Cook, Eric J. KarsonAbstract:Search advertising is one of the most important forms of electronic commerce. While click-through rates are considered a key measure of search advertising effectiveness by search providers, brand attention can also be a valuable objective. Our paper reports on an experiment that investigated how search advertisement placement affected search users' brand recall and recognition. The results showed that semantically associated search ads generated significantly higher levels of brand attention than contextually associated ones. Significant interaction effects were found among search ad Position, Keyword association, and search result quality. Implications for decision makers are discussed.
David P. Cook - One of the best experts on this subject based on the ideXlab platform.
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Search advertising placement strategy: Exploring the efficacy of the conventional wisdom
Information & Management, 2011Co-Authors: David P. Cook, Eric J. KarsonAbstract:Search advertising is one of the most important forms of electronic commerce. While click-through rates are considered a key measure of search advertising effectiveness by search providers, brand attention can also be a valuable objective. Our paper reports on an experiment that investigated how search advertisement placement affected search users' brand recall and recognition. The results showed that semantically associated search ads generated significantly higher levels of brand attention than contextually associated ones. Significant interaction effects were found among search ad Position, Keyword association, and search result quality. Implications for decision makers are discussed.