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Peer reviewed Peer reviewed
Horng, Jorng-Tzong; Yeh, Ching-Chang – Information Processing & Management, 2000
Proposes a novel approach to automatically retrieve keywords and then uses genetic algorithms to adapt the keyword weights. Discusses Chinese text retrieval, term frequency rating formulas, vector space models, bigrams, the PAT-tree structure for information retrieval, query vectors, and relevance feedback. (Author/LRW)
Descriptors: Algorithms, Chinese, Information Retrieval, Keywords
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