| Project/Area Number |
20700210
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Sensitivity informatics/Soft computing
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| Research Institution | Kyushu University |
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Principal Investigator |
JITSUMATSU Yutaka Kyushu University, 大学院・システム情報科学研究院, 准教授 (60336063)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2009: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2008: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | 非線形理論 / 回路 / ニューラルネットワーク / 連想記憶 / スピングラス / マルコフ連鎖 / CDMA通信 / 同期・非同期 / 分散滅少法 / スピン系 / CDMA / 同期ゆらぎ |
|---|
| Research Abstract |
Brain is a network of neurons, which have two states, exited or non-excited. Associative memory is a mathematical model of information processing of brain, in which random patterns are memorized and retrieved. In a CDMA communications using pseudo-random sequences, bit error rate is smaller if users' signals are asynchronous than they are synchronous. In this research, an associative memory where patterns have random offsets, i.e. they are spatially asynchronous, has been proposed. Interference between asynchronous patterns was shown to be smaller than the one between synchronous patterns.
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