Search

The elementary cellular automata (ECAs) is a digital dynamical system in which time, space and states are all discrete. Depending on a rule, the ECAs can exhibit a variety of spatiotemporal patterns. In this paper, we present time-variant rule elementary cellular automata (TCAs). In order to analyze the TCAs, we introduce three simple feature quantities. The feature quantities shows expression ability, error rate and stability. Using the feature quantities, we investigate typical TCAs in numerical experiments.

近年の情報技術の発展にともない，教育工学分野でも多くの情報技術が応用されている．eテスティングは教育工学分野における重要なテーマの一つである．既にeテスティングに関する数多くの従来研究が存在する．しかし，従来研究では，eテスティング方法が受験者の真の理解度の判定を間違えてしまう確率である誤り率を理論的に最小化することを理論的に保証する方法は提案されていない．そこで，本研究では統計的決定理論に基づきベイズ基準のもとで誤り率を最小化するeテスティング方法を提案する．提案方法ではeテスティング問題を解くために動的計画法を利用している．提案方法の有効性を示すために数値計算例を紹介する．提案方法は適応的な仮説検定の一種でもあり，本研究の成果はヘルスケア産業においても応用可能だと考えられる．, Information technology is applied to many tasks in educational engineering. E-testing is one of important tasks in educational engineering. There are many previous studies on e-testing. An error rate in e-testing represents the probability of an event that an e-testing method computes wrong evaluations for understanding of students. In previous studies the error rate is not minimized theoretically. We propose an e-testing method based on statistical decision theory. The proρosed method minimizes the error rate with respect to the Bayes criterion. Dynamic programming technique is used to solve the e-testing problem. We show the effectiveness of the proposed method by some numerical calculation examples. The proρosed method is one of adaptive tests of hypotheses in statistics. The proposed method can be applied to many tasks in healthcare industry.

application/pdf, Eb/No (Bit Energy per Noise power density) becomes very small value and decoding becomes difficult by the signal level decreases to very small in the Wireless Communication. The error correcting codes becomes very important in the picture transmission. Recently, Turbo Codes and LDPC (Low Density Parity Check) Codes have been researched as a very strong error correcting codes. The occurrence of the error can be suppressed by using error correcting codes of Turbo Codes and LDPC Codes. This paper analyzes the effect of error correcting codes and shows error rate every SIN (Signal per Noise rate) ratio.