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Printed in Beijing All rights reserved. This work may not be translated or copied in whole or in part without the written permission of the publisher (Science Press) except for brief excerpts in connection with reviews or scholarly analysis. Use in connection with any form of information storage and retrieval, electronic adaptation, computer software, or by(More)
Real world data sets usually have many features, which increases the complexity of data mining task. Feature selection, as a prepro-cessing step to the data mining, has been shown very effective in reducing dimensionality, removing irrelevant data, increasing learning accuracy, and improving comprehensibility. To find the optimal feature subsets is the aim(More)
The fundamental principle and the characteristics of ternary optical computer, using horizontal polarized light, vertical polarized light and no-intensity to express information, are propounded in this paper. The practicability to make key parts of the ternary optical computer from modern micro or integrated optical devices, opto-electronic and(More)
At the present 50 to 100 microseconds are necessary for a liquid crystal to change its state from opacity to clarity; 1.14 × 10−5 microseconds are however proved to be enough for light to pass through a clarity liquid crystal device. Rooted from this great difference in time, an optical adder was constructed with parallel through carry lanes (PTCL) composed(More)
Traditional fuzzy reasoning methods have two problems 1) the operators appearing in the fuzzy reasoning methods are fixed; 2) how to select the operations for the reasoning methods. In order to solve the problems, we propose the updating fuzzy reasoning method based on universal logic in this paper. The reasoning rules based on universal logic of five fuzzy(More)
Time series composed of a series of data observed according to time sequence. There are large numbers of time series in the field of automatic control. Usually time series data is massive. Sometimes, it is inefficient or impractical to mine the original time series data directly. So time series should be represented on higher level. Piecewise Linear(More)
Based on the Schweizer-Sklar t-norm, a fuzzy logic system UL* is established, and its soundness theorem and completeness theorem are proved. The following facts are pointed out: the well-known formal system SBL∼ is a semantic extension of UL*; the fuzzy logic system IMTLΔ is a special case of UL* when two negations in UL* coincide. Moreover, the connections(More)