کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4947567 1439586 2017 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Chaotic pseudo-orthogonalized Hopfield associative memory
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر هوش مصنوعی
پیش نمایش صفحه اول مقاله
Chaotic pseudo-orthogonalized Hopfield associative memory
چکیده انگلیسی
A Hopfield associative memory (HAM) is a major model of associative memory using neural networks. The classical HAM model has a low storage capacity. A pseudo-orthogonalized HAM (POHAM) was therefore proposed to improve storage capacity by encoding the training patterns to be pseudo-orthogonal. In the present work, we examine a different property of POHAM. A chaotic HAM (CHAM) can explore embedded patterns, including training patterns. Although it is not desirable to recall patterns other than training patterns, at a minimum, the reversed patterns are recalled. A POHAM regards the training and reversed patterns as equivalent. To take advantage of this property, we propose a chaotic POHAM (CPOHAM). We evaluated a CHAM and a CPOHAM using computer simulations. The CPOHAM never recalled the reversed patterns. In addition, the CPOHAM recalled very few other pseudo-memories, such as mixture patterns, due to the orthogonality of the encoded training patterns, while the CHAM frequently recalled the mixture patterns.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neurocomputing - Volume 241, 7 June 2017, Pages 147-151
نویسندگان
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