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Browsing 情報科学研究科 / Graduate School of Information Science by Title

Browsing 情報科学研究科 / Graduate School of Information Science by Title

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  • 小林, 寛武; 戸田, 航史; 亀井, 靖高; 門田, 暁人; 峯, 恒憲; 鵜林, 尚靖 (電子情報通信学会, 2013-08-01)
    ソフトウェアテスト・保守において,限られたリソースで信頼性を確保することを目的として,モジュールに含まれるfaultの有無や数を予測するモデルが数多く提案されている.しかし,従来研究では,評価用のプロジェクト(データセット)の数が少ない,比較に用いたモデル数が少ない,モジュールの規模を考慮した評価を行っていない(fault密度を予測していない),モデル構築用と評価用のデータセットを同じサンプルから抽出している(バージョンをまたがる評価を ...
  • 長行, 康男; 伊藤, 実 (一般社団法人電子情報通信学会, 2003-11-01)
    本論文では,2体エージェント確率ゲームにおける新たな強化学習法を提案する.提案する手法では,他エージェントが実際に実行した行動の観測情報をもとに他エージェントの政策(行動決定関数)を推定し,その推定した政策を利用して他エージェントが未来に実行する行動を予測する.そして,その予測行動を利用しながら強化学習を進行する.提案した手法を2体エージェント確率ゲームの枠組みでモデル化した追跡問題に適用し,実験を行い,提案手法の有効性を示す.
  • 清川, 皓太; 山本, 眞也; 柴田, 直樹; 安本, 慶一; 伊藤, 実 (一般社団法人情報処理学会, 2011-02-15)
    本論文では,ネットワーク接続された多数の情報家電を一元的かつ直観的な操作により遠隔地からの制御を可能にする情報家電リモコンのフレームワークUbiREMOTEを提案する.UbiREMOTEは,ホームネットワークが敷設された空間の間取りとそこに設置された多数の情報家電を模した3D仮想空間を構築し,対象となる空間と情報家電の動作状況を3Dグラフィックスでリモコン端末に表示する機能,および,一般的な赤外線リモコンを用いて操作する手順に似せたイン ...
  • Aoto, Takahito; Sato, Tomokazu; Mukaigawa, Yasuhiro; Yokoya, Naokazu (Springer, 2017-04-08)
    Common light sources such as an ordinary flashlight with lenses and/or reflectors make complex 4-D light field that cannot be represented by conventional isotropic distribution model nor point light source model. This paper ...
  • 油谷,曉; 垣内,正年; 香取,啓志; 尾久土,正己; 猪俣,敦夫; 藤川,和利; 砂原,秀樹; 眞鍋,佳嗣; 千原,國宏 (日本ソフトウェア科学会, 2011-11-30)
    2009年7月22日に日本で皆既日食という天体ショーが起こり,様々な組織が皆既日食映像の伝送実験や多彩なイベントを行った.4K超高精細映像の伝送方法について共同研究を行っている朝日放送株式会社(ABC)では大規模なIPネットワークを使用した全天4K超高精細映像の伝送実験を企画し,奈良先端科学技術大学院大学(NAIST)も参加協力を行った.この伝送実験では,世界初の試みとして,皆既日食が起こっている場所の臨場感を全天4K超高精細映像を使用 ...
  • Sekii, Taiki; Sato, Tomokazu; Kume, Hideyuki; Yokoya, Naokazu (一般社団法人情報処理学会, 2013-08-23)
    A new method for estimating a six-degrees-of-freedom camera pose for a ground-view image using reference points on an aerial image is presented. Unlike typical PnP problems, altitude information is not available for the ...
  • Ishida, Toshiyuki; Kaji, Yuichi (Institute of Electronics, Information and Communication Engineers, 2003-12-01)
    A new algorithm for the LogMAP decoding of linear block codes is considered. The decoding complexity is evaluated analytically and by computer simulation. The proposed algorithm is an improvement of the recursive LogMAP ...
  • Miyase, Kohei; Sakai, Ryota; Wen, Xiaoqing; Aso, Masao; Furukawa, Hiroshi; Yamato, Yuta; Kajihara, Seiji (一般社団法人電子情報通信学会, 2013-09-01)
    Test power has become a critical issue, especially for low-power devices with deeply optimized functional power profiles. Particularly, excessive capture power in at-speed scan testing may cause timing failures that result ...
  • Yuka Okada; Takanobu Nishiura; Satoshi Nakamura; Takeshi Yamada; Kiyohiro Shikano (日本音響学会, 2002-11)
  • Yamato, Yuta; Wen, Xiaoqing; Miyase, Kohei; Furukawa, Hiroshi; Kajihara, Seiji (一般社団法人電子情報通信学会, 2011-04-01)
    Power-aware X-filling is a preferable approach to avoiding IR-drop-induced yield loss in at-speed scan testing. However, the ability of previous X-filling methods to reduce launch switching activity may be unsatisfactory, ...
  • Sun, Weihua; Shibata, Naoki; Kenmotsu, Masahiro; Yasumoto, Keiichi; Ito, Minoru (一般社団法人情報処理学会, 2015-07-15)
    In this paper, we focus on multilevel parking facilities and propose a navigation system that minimizes the time required for cars to find vacant parking spaces. Parking zones at large parking facilities provide drivers ...
  • Panikos Heracleous; Satoshi Nakamura; Takeshi Yamada; Kiyohiro Shikano (電子情報通信学会, 2002-06)
    This paper describes a method for hands-free speech recognition, and particularly for the simultaneous recognition of multiple sound sources. The method is based on the 3-D Virerbi search, i.e., extended to the 3-D N-best ...
  • Shiraishi, Takayuki; Nagata, Munenobu; Shibata, Naoki; Murata, Yoshihiro; Yasumoto, Keiichi; Ito, Minoru (一般社団法人情報処理学会, 2005-11-15)
    In order to allow tourists to travel to multiple destinations efficiently we need a personal navigation system which computes and shows the best route to the next destination and facilitates composition of a schedule for ...
  • Kanamori, Masataka; Kobayashi, Takashi; Yamaguchi, Suguru (Institute of Electronics, Information and Communication Engineers, 2004-03-01)
    In this paper, we focus on how to correct address mapping violation, in which an attacker rewrites the address mapping table of a victim to perform a Man-in-the-Middle (MITM) attack. We propose a technique for preventing ...
  • Tomoya Takatani; Satoshi Ukai; Tsuyoki Nishikawa; Hiroshi Saruwatari; Kiyohiro Shikano (電子情報通信学会, 2005-07)
    In this paper, we address the blind separation problem of binaural mixed signals, and we propose a novel blind separation method, in which a self-generator for initial filters of Single-Input-Multiple-Output-model-based ...
  • Sudo, Yuichi; Baba, Daisuke; Nakamura, Junya; Ooshita, Fukuhito; Kakugawa, Hirotsugu; Masuzawa, Toshimitsu (一般社団法人電子情報通信学会, 2015-10-01)
    We consider the exploration problem with a single agent in an undirected graph. The problem requires the agent starting from an arbitrary node to explore all the nodes and edges in the graph and return to the starting node. ...
  • Tomoki Toda; Keiichi Tokuda (電子情報通信学会, 2007-05)
    This paper describes a novel parameter generation algorithm for an HMM-based speech synthesis technique. The conventional algorithm generates a parameter trajectory of static features that maximizes the likelihood of a ...
  • Sasao, Hiroto; Kawai, Norihiko; Sato, Tomokazu; Yokoya, Naokazu (社団法人映像情報メディア学会, 2016-01-01)
    Image inpainting has been widely investigated to remove undesired parts of images. One of the effective approaches is exemplar-based inpainting, which uses texture patterns in an image as exemplars for filling in missing ...
  • Arata Itoh; Sunao Hara; Norihide Kitaoka; Kazuya Takeda (電子情報通信学会, 2012-10)
    A novel speech feature generation-based acoustic model training method for robust speaker-independent speech recognition is proposed. For decades, speaker adaptation methods have been widely used. All of these adaptation ...
  • Shiro Ise; Hideki Tachibana (日本音響学会, 1996-11)
    An active absorber of sound using an adaptive algorithm is studied. To realize an active sound absorber, the incident wave on the absorber which is usually mixed with the reflected wave, must be known. In conventional ...

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