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電氣學會論文誌. IEEJ Transactions on Electronics, Informa... 18건

  1. [해외논문]   顔面熱画像によるドライバーの覚醒評価—周辺温度と風量の影響—  

    Sakamoto, Ryo , Nozawa, Akio , Tanaka, Hisaya , Mizuno, Tota , Ide, Hideto
    電氣學會論文誌. IEEJ Transactions on Electronics, Information and Systems. C : 電子·情報·システム v.126 no.7 ,pp. 804 - 809 , 2006 , 0385-4221 ,

    초록

    Recently, established transportation system is actively done to the research on ITS that starts achieving a more excellent traffic environment by using most-advanced information and communications technology. We studied the method of evaluating physiologycal state of human based on facial skin thermal image analysis. However it is said that facial skin thermogram have a susceptibility to environmental variation. In this paper, how much the facial skin thermogram effected the influence of the outside environment was examined. As a result, when there is no stressor from the outside, the environmental variation can be removed by calculating the temperature of ( nasal - forehead ). On the other hand, in the case of giving subject the stressor, the change of temperature appeared only nose.

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    회원님의 원문열람 권한에 따라 열람이 불가능 할 수 있으며 권한이 없는 경우 해당 사이트의 정책에 따라 회원가입 및 유료구매가 필요할 수 있습니다.이동하는 사이트에서의 모든 정보이용은 NDSL과 무관합니다.

    NDSL에서는 해당 원문을 복사서비스하고 있습니다. 아래의 원문복사신청 또는 장바구니담기를 통하여 원문복사서비스 이용이 가능합니다.

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  2. [해외논문]   高速電力線通信システムに対するOFDM信号の伝送特性  

    Mori, Akira , Watanabe, Yosuke , Tokuda, Masamitsu , Kawamoto, Koji
    電氣學會論文誌. IEEJ Transactions on Electronics, Information and Systems. C : 電子·情報·システム v.126 no.7 ,pp. 810 - 817 , 2006 , 0385-4221 ,

    초록

    In this paper, we measured what influence the sinusoidal transmission characteristics of the electric power line with various forms gave to the transmission characteristic of OFDM (Orthogonal Frequency Division Multiplexing) signal through PLC (power line communication system) modem. We classified the electric power line transmission line with various forms in a real environment into two basic elements, which are an outlet type branch and a switch type branch. Next, PHY rate (Physical rate) is measured for each basic element connected with the PLC modem. At this time, the transmission characteristics of the electric power line are simulated from measured data. OFDM sending and receiving systems are composed on the computer, and the PHY rate is simulated. By comparing with measured and calculated values, it is revealed that PHY rate of PLC modem is most affected in the case of the power line transmission characteristics having broad band and high level attenuation and group delay variation, and is not affected in the case of that having narrow band attenuation and group delay variation.

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    무료다운로드 유료다운로드

    회원님의 원문열람 권한에 따라 열람이 불가능 할 수 있으며 권한이 없는 경우 해당 사이트의 정책에 따라 회원가입 및 유료구매가 필요할 수 있습니다.이동하는 사이트에서의 모든 정보이용은 NDSL과 무관합니다.

    NDSL에서는 해당 원문을 복사서비스하고 있습니다. 아래의 원문복사신청 또는 장바구니담기를 통하여 원문복사서비스 이용이 가능합니다.

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  3. [해외논문]   学習オートマトンを用いた新しいQosパケットスケジューラ  

    Munakata, Masayuki , Une, Hiroyuki , Qian, Fei
    電氣學會論文誌. IEEJ Transactions on Electronics, Information and Systems. C : 電子·情報·システム v.126 no.7 ,pp. 818 - 824 , 2006 , 0385-4221 ,

    초록

    Today's Internet traffic is classified into realtime traffic (e.g.voice and video streaming) and non-realtime traffic (e.g.E-mail and FTP data transfer). Realtime traffic is received as a mischief which may not be able to smoothly use applications by marked delay or dropped packets when congestion occurrs as a bottle-neck link. Therefore, necessity of Qos (Quality of service) is rising. For example, allocation of network service rates and priority to realtime traffic.In this paper, we present a new packet scheduer for the router and build control system which is intended for a best-effort (BE) flow and several constrained Qos flows. Scheduler to suggest describes a policy that satisfies delay-constrained Qos requirement of each flow and gives maximum traffic for BE flow.

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    무료다운로드 유료다운로드

    회원님의 원문열람 권한에 따라 열람이 불가능 할 수 있으며 권한이 없는 경우 해당 사이트의 정책에 따라 회원가입 및 유료구매가 필요할 수 있습니다.이동하는 사이트에서의 모든 정보이용은 NDSL과 무관합니다.

    NDSL에서는 해당 원문을 복사서비스하고 있습니다. 아래의 원문복사신청 또는 장바구니담기를 통하여 원문복사서비스 이용이 가능합니다.

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  4. [해외논문]   携帯電話で非接触抽出可能な音楽電子透かし技術の開発  

    Modegi, Toshio
    電氣學會論文誌. IEEJ Transactions on Electronics, Information and Systems. C : 電子·情報·システム v.126 no.7 ,pp. 825 - 831 , 2006 , 0385-4221 ,

    초록

    We have proposed a novel audio watermarking technology, which embeds a set of bitstream data by changing two-channel stereo locations of lower frequency components in an embedding target audio signal. This method features nearly lossless embedding, robustness against lossy data compression or analogue conversion, and enables contactless asynchronous detection of embedded watermarks through speaker and microphone devices without the original audio signals.Then, we propose several extended monaural embedding methods, which embed data by changing level balances between two sets of lower frequency components, which are divided by either frequency or temporal dimensions. In these level changes, we remove lower frequency components of the left channel signal and add the removed components to the corresponding components of the right channel of given stereo signal in order to support also nearly lossless embedding. These methods enable watermark detection from only the left channel signal by a single monaural microphone, and we have confirmed detection capability by a cell phone.In this paper, we describe abstracts of our proposed watermark embedding and extracting algorithms, experimental results of watermark extraction precision.

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    무료다운로드 유료다운로드

    회원님의 원문열람 권한에 따라 열람이 불가능 할 수 있으며 권한이 없는 경우 해당 사이트의 정책에 따라 회원가입 및 유료구매가 필요할 수 있습니다.이동하는 사이트에서의 모든 정보이용은 NDSL과 무관합니다.

    NDSL에서는 해당 원문을 복사서비스하고 있습니다. 아래의 원문복사신청 또는 장바구니담기를 통하여 원문복사서비스 이용이 가능합니다.

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  5. [해외논문]   強化学習における状態フィルタの提案と一実現方法  

    Nagayoshi, Masato , Murao, Hajime , Tamaki, Hisashi
    電氣學會論文誌. IEEJ Transactions on Electronics, Information and Systems. C : 電子·情報·システム v.126 no.7 ,pp. 832 - 839 , 2006 , 0385-4221 ,

    초록

    Reinforcement Learning (RL) attracts much attention as a technique of realizing computational intelligence such as adaptive and autonomous decentralized systems. However, in general, it is not easy to put RL into practical use. This difficulty includes a problem of designing a reasonable state space of an agent, i.e., satisfying two requirements in trade-off: to reduce the search space for making a learning process be fast and to keep the characteristics of the search space for seeking better strategies. In this paper, in order to overcome the above difficulty, we propse a concept of a “state space filtering", and a method to adjust the search space adaptively by referring to an entropy. Then, through computational experiments by using a robot navigation problem with continuous state space, the validity and the potential of the proposed method have been comfirmed.

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    무료다운로드 유료다운로드

    회원님의 원문열람 권한에 따라 열람이 불가능 할 수 있으며 권한이 없는 경우 해당 사이트의 정책에 따라 회원가입 및 유료구매가 필요할 수 있습니다.이동하는 사이트에서의 모든 정보이용은 NDSL과 무관합니다.

    NDSL에서는 해당 원문을 복사서비스하고 있습니다. 아래의 원문복사신청 또는 장바구니담기를 통하여 원문복사서비스 이용이 가능합니다.

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  6. [해외논문]   投棄ゴミの回収を行う屋外サービスロボットの開発  

    Obata, Masayuki , Nishida, Takeshi , Miyagawa, Hidekazu , Kondo, Takashi , Ohkawa, Fujio
    電氣學會論文誌. IEEJ Transactions on Electronics, Information and Systems. C : 電子·情報·システム v.126 no.7 ,pp. 840 - 848 , 2006 , 0385-4221 ,

    초록

    The outdoor service robot which we call OSR-01 is developed intending for cleaning up urban areas by means of collecting discarded trash such as PET bottles, cans, plastic bags and so on. We, in this paper, describe the architecture of OSR-01 consisting of hardwares such as sensors, a manipulator, driving wheels, etc. for searching for and picking up trash, and softwares such as fast pattern matching for identifying various trash and distance measurement for picking up via the manipulator. After describing the vision system in detail, which is one of the most critical parts of the trash collection task, we show the result of an open experiment in which OSR-01 collects PET bottles on a real shopping street in the special zone for robot research and development in Kitakyushu-city.

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    무료다운로드 유료다운로드

    회원님의 원문열람 권한에 따라 열람이 불가능 할 수 있으며 권한이 없는 경우 해당 사이트의 정책에 따라 회원가입 및 유료구매가 필요할 수 있습니다.이동하는 사이트에서의 모든 정보이용은 NDSL과 무관합니다.

    NDSL에서는 해당 원문을 복사서비스하고 있습니다. 아래의 원문복사신청 또는 장바구니담기를 통하여 원문복사서비스 이용이 가능합니다.

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    Fig. 1 이미지
  7. [해외논문]   遺伝的ネットワークプログラミングを用いた医療相関ルールの抽出  

    Shimada, Kaoru , Wang, Rouchen , Hirasawa, Kotaro , Furuzuki, Takayuki
    電氣學會論文誌. IEEJ Transactions on Electronics, Information and Systems. C : 電子·情報·システム v.126 no.7 ,pp. 849 - 856 , 2006 , 0385-4221 ,

    초록

    An efficient algorithm for building a classifier is proposed based on an important association rule mining using Genetic Network Programming (GNP). The proposed method measures the significance of the association via the chi-squared test. Users can define the conditions of important association rules for building a classifier flexibly. The definition can include not only the minimum threshold chi-squared value, but also the number of attributes in the association rules. Therefore, all the extracted important rules can be used for classification directly. GNP is one of the evolutionary optimization techniques, which uses the directed graph structure as genes. Instead of generating a large number of candidate rules, our method can obtain a sufficient number of important association rules for classification. In addition, our method suits association rule mining from dense databases such as medical datasets, where many frequently occurring items are found in each tuple. In this paper, we describe an algorithm for classification using important association rules extracted by GNP with acquisition mechanisms and present some experimental results of medical datasets.

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    무료다운로드 유료다운로드

    회원님의 원문열람 권한에 따라 열람이 불가능 할 수 있으며 권한이 없는 경우 해당 사이트의 정책에 따라 회원가입 및 유료구매가 필요할 수 있습니다.이동하는 사이트에서의 모든 정보이용은 NDSL과 무관합니다.

    NDSL에서는 해당 원문을 복사서비스하고 있습니다. 아래의 원문복사신청 또는 장바구니담기를 통하여 원문복사서비스 이용이 가능합니다.

    이미지

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  8. [해외논문]   PSO結合型離散勾配系カオスモデルによる大域的最適化  

    Okamoto, Takashi , Aiyoshi, Eitaro
    電氣學會論文誌. IEEJ Transactions on Electronics, Information and Systems. C : 電子·情報·システム v.126 no.7 ,pp. 857 - 864 , 2006 , 0385-4221 ,

    초록

    In this paper, we propose a new multi-agent discrete gradient chaos model using a coupling structure which PSO has. Concretely, firstly, we introduce a multi-agent type optimization model whose agents search autonomously with the discrete gradient chaos model which is the simplest dynamical global search model, and they are coupled by convective coupling. Convective coupling in this model is used to aim at a overcoming of emergence of boundary crisis which is a problem of original discrete gradient chaos model. Secondary, we introduce PSO coupling structure, where population drifts to the gbest and the pbest, into discrete gradient chaos model. Then, we propose “PSO coupling type discrete gradient chaos model" with the search strategy based on objective function's value. In this paper, our proposal models are applied to several benchmark problems. The results show that our proposed models have better global optimization ability than original discrete gradient chaos model and PSO model.

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    무료다운로드 유료다운로드

    회원님의 원문열람 권한에 따라 열람이 불가능 할 수 있으며 권한이 없는 경우 해당 사이트의 정책에 따라 회원가입 및 유료구매가 필요할 수 있습니다.이동하는 사이트에서의 모든 정보이용은 NDSL과 무관합니다.

    NDSL에서는 해당 원문을 복사서비스하고 있습니다. 아래의 원문복사신청 또는 장바구니담기를 통하여 원문복사서비스 이용이 가능합니다.

    이미지

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  9. [해외논문]   潜在的意味を用いた情報フィルタリング  

    Yokoi, Takeru , Yanagimoto, Hidekazu , Omatu, Sigeru
    電氣學會論文誌. IEEJ Transactions on Electronics, Information and Systems. C : 電子·情報·システム v.126 no.7 ,pp. 865 - 870 , 2006 , 0385-4221 ,

    초록

    We propose an information filtering system using latent semantics obtained by the Singular Value Decomposition(SVD) and the Independent Component Analysis(ICA). Document vectors usually have too many elements. So we are obliged to spend much time to apply the ICA for the document vectors. To solve this problem, the present method combines the SVD which is often used for decreasing dimension and the ICA. Before applying the ICA, we represent documents with singular vectors obtained by the SVD. We measure processing times to carry out the ICA without the SVD and the proposed method for comparison of these methods. In addition, we construct a user profile in space consisted of latent semantics obtained by the present method, and discuss accuracy of recommendation.

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    무료다운로드 유료다운로드

    회원님의 원문열람 권한에 따라 열람이 불가능 할 수 있으며 권한이 없는 경우 해당 사이트의 정책에 따라 회원가입 및 유료구매가 필요할 수 있습니다.이동하는 사이트에서의 모든 정보이용은 NDSL과 무관합니다.

    NDSL에서는 해당 원문을 복사서비스하고 있습니다. 아래의 원문복사신청 또는 장바구니담기를 통하여 원문복사서비스 이용이 가능합니다.

    이미지

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  10. [해외논문]   電子パッケージの高精度な熱変位·熱ひずみ分布の計測  

    Morita, Yasuyuki , Arakawa, Kazuo , Todo, Mitsugu
    電氣學會論文誌. IEEJ Transactions on Electronics, Information and Systems. C : 電子·情報·システム v.126 no.7 ,pp. 871 - 876 , 2006 , 0385-4221 ,

    초록

    The thermal deformation of electronic package, QFP (Quad Flat Package), was measured by phase-shifting moirE interferometry. This method was developed using a wedge-glass-plate as a phase-shifter to obtain the displacement fields with the sensitivity of 80 nm/line. Digital image processing was also introduced to determine the strain distributions quantitatively. Thermal loading was applied by heating the package from room temperature 25°C to an elevated temperature 100°C. The result showed that the normal and shear strains concentrated in the packaging resins around the silicon chip, mount island, and lead frames.

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    무료다운로드 유료다운로드

    회원님의 원문열람 권한에 따라 열람이 불가능 할 수 있으며 권한이 없는 경우 해당 사이트의 정책에 따라 회원가입 및 유료구매가 필요할 수 있습니다.이동하는 사이트에서의 모든 정보이용은 NDSL과 무관합니다.

    NDSL에서는 해당 원문을 복사서비스하고 있습니다. 아래의 원문복사신청 또는 장바구니담기를 통하여 원문복사서비스 이용이 가능합니다.

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