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Access to Information2
Algorithms2
Astronomy1
Indexing1
Information Systems1
Mathematical Formulas1
Matrices1
Periodicals1
Scientific and Technical…1
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Information Processing and…1
Information Services & Use1
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Chang, Chin-Chen1
Khatri, N. K.1
Pichappan, P.1
Wu, Tzong-Chen1
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Showing all 2 results Save | Export
Controlling the Access Requests in an Information Protection System.
Peer reviewed Peer reviewed
Chang, Chin-Chen; Wu, Tzong-Chen – Information Processing and Management, 1993
Proposes and explains a new mechanism for controlling the access requests in information protection systems that is based on Newton's interpolating polynomial. Access control matrices are discussed; single-key-lock systems are described; relevant algorithms are explained; and an example of the new mechanism is included. (10 references) (LRW)
Descriptors: Access to Information, Algorithms, Information Systems, Mathematical Formulas
Iterative Approach in Finding the "Core" of Information.
Peer reviewed Peer reviewed
Pichappan, P.; Khatri, N. K. – Information Services & Use, 1995
High impact astronomy journals were identified by using a methodology called Discipline-Contribution Score (DCS). The DCS algorithm was used to track citations of 33 nonrecognized astronomy journals, as well as to measure contributions to astronomy by multisubfield physics and multidisciplinary journals. (JKP)
Descriptors: Access to Information, Algorithms, Astronomy, Indexing