Transactions of the Institute of electronics, information and communication engineers 

About: Transactions of the Institute of electronics, information and communication engineers is an academic journal. The journal publishes majorly in the area(s): Artificial neural network & Fault (power engineering). It has an ISSN identifier of 0913-574X. Over the lifetime, 508 publications have been published receiving 2015 citations.

An Extended Forecast of CPU and Network Load on the Computational Grid

Abstract: To achieve effective load balancing and a robust Grid environment, extended load forecast for computational resources is increasingly required. Thus, this paper proposes a method of predicting network and CPU load variance within a wide range, from several minutes to over a week. This is the widest range of prediction of the existing algorithms in the load of computational resources for the Grid environment. The distinctiveness of our algorithm is in using seasonal load variation for both load variance and one-step-ahead prediction. We apply seasonal fluctuation in CPU load to network load variation especially for network load variance prediction. Furthermore, the Markov model-based meta-predictor is used for one-step-ahead prediction, which is sensitive to late trends. The results of the experiments demonstrate that our algorithm gives a good curve for expected 8-day-long load variance, and makes accurate one-step-ahead predictions. The mean error rate for one-step-ahead predictions is 9.4% in the case of network load, and 6.2% in the case of CPU load. Moreover, the least mean error rate for wider range forecasts is 5.5% for network load variation, and 3.6% for CPU load variation.

Interactive Bi-proof Systems and Undeniable Signature Schemes

Abstract: This paper proposes a new construction of the minimum knowledge undeniable signature scheme which solves a problem inherent in Chaum's scheme. We formulate a new proof system, the minimum knowledge interactive bi-proof system, and a pair of languages, the common witness problem, based on the random self-reducible problem. And we show that any common witness problem has the minimum knowledge interactive bi-proof system. A practical construction for undeniable signature schemes is proposed based on such a proof system. These schemes assure signature confirmation and disavowal with the same protocol (or at the same time).

Recognition of Abdominal Organs Using 3D Mathematical Morphology

Abstract: This paper describes a method for recognizing abdominal organs in a computed tomography image primarily based on mathematical morphology. We first identify the coordinate origin and the scale in the abdominal region and then set up four regions for recognition. The recognition process consists of two steps: segmentation and identification. For the segmentation step we employ a differential top-hat (DTT) operation. For the identification step, we first identify the vertebra that the lowest rib meets. The gravity center of this vertebra is used to set the coordinate origin. In three regions, we separate organs based on threshold values, while in a region containing the liver and stomach we use RE (Recursive Erosion) and GI (Geodesic Influence) in order to separate touched organs. The separated organs are identified or labeled based on the size and position. This method is judged to be effective since we were able to obtain a recognition or labeling rate of approximately 91%. © 2002 Wiley Periodicals, Inc. Syst Comp Jpn, 33(8): 75–83, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/scj.1148

KeyGraph : Automatic Indexing by Segmenting and Unifing Co-Occurrence Graphs

Abstract: 近年,電子図書館やインターネットの発達につれて さまざまな書類が電子的に蓄えられ,ユーザは自宅か らでも大量の文書にアクセスできるようになった.し かし,大量の情報が身近に提供されても,ユーザに そのすべてを読む時間はない.したがって,ユーザに とって重要な文書を計算機が文書データベースから選 び出してくる検索技術は重要な使命を担っている. ここで,検索対象の各文書から内容を要約するキー ワードを抽出しておくことは重要である.というのは, ユーザの検索語(ユーザが自分の興味を表すために入 力した語すなわち単語あるいは熟語の集合)と文書の キーワードとの照合によって,照合時間が文書の全文 と検索語を照合するよりも短縮できるからである.ま た,キーワードが文書の内容の本質を的確に表してい ればキーワード抽出は文書にとって意味のない部分を 捨てることになるので,全文検索よりかえってユーザ の興味を深く満足させる検索結果を得ることができる. 我々は本論文で,文書の主張の内容を表すキーワー ドの抽出をねらう.そのようなキーワードはユーザの 検索語に近い主張をもつ文書を検索するのに役立つの で,ユーザは,自分と同じ考えの著者や,内容は見聞

Damage caused by stored charge during ECR plasma etching

Abstract: The influence of stored charge caused by changing the plasma parameter can be accurately shown by measuring the leakage current in CMOS-inverter integrated circuits. The leakage current increase is due to nonuniform ion current density distribution and self-bias voltage at the point of ECR plasma discharge turn-off. Positive charge ions are stored by the ion current density difference on a wafer. Moreover, a large voltage across the gate oxide is generated by the self-bias voltage at the point of ECR plasma discharge turn-off, and finally degrades the gate oxide.