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Mathematical Formulas2
Access to Information1
Algorithms1
Comparative Analysis1
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Information Processing &…2
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Aoe, Jun-ichi2
Okada, Makoto2
Shishibori, Masami2
Atlam, El-Sayed1
Koyama, Masafumi1
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An Evaluation Method of Words Tendency Depending on Time-Series Variation and Its Improvements.
Peer reviewed Peer reviewed
Atlam, El-Sayed; Okada, Makoto; Shishibori, Masami; Aoe, Jun-ichi – Information Processing & Management, 2002
Discussion of word frequency and keywords in text focuses on a method to estimate automatically the stability classes that indicate a word's popularity with time-series variations based on the frequency change in past electronic text data. Compares the evaluation of decision tree stability class results with manual classification results.…
Descriptors: Comparative Analysis, Electronic Text, Evaluation Methods, Keywords
Two Improved Access Methods on Compact Binary (CB) Trees.
Peer reviewed Peer reviewed
Shishibori, Masami; Koyama, Masafumi; Okada, Makoto; Aoe, Jun-ichi – Information Processing & Management, 2000
Discusses information retrieval and the use of binary trees as a fast access method for search strategies such as hashing. Proposes new methods based on compact binary trees that provide faster access and more compact storage, explains the theoretical basis, and confirms the validity of the methods through empirical observations. (LRW)
Descriptors: Access to Information, Algorithms, Information Retrieval, Information Storage