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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

Fuketa, Masao; Mizofuchi, Shoji; Hayashi, Yoshitaka; Aoe, Jun-ichi – Information Processing & Management, 1998
Presents a technique for storing compound keywords with information about short and long component (SC and LC) keywords by extending Aho and Corasick (AC) string-pattern matching-machine for a finite number of keywords. Results for 38 Japanese text files reveal the extended AC machine is three to six times faster than the original AC machine in SC…
Descriptors: Databases, Foreign Countries, Information Retrieval, Information Seeking