Performance Improvement for Classifiers by Optimizing Training Samples

• Project/Area Number: 22500172
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Perception information processing/Intelligent robotics
• Research Institution: National Institute of Advanced Industrial Science and Technology
• Principal Investigator: NISHIDA Kenji 独立行政法人産業技術総合研究所, ヒューマンライフテクノロジー研究部門, 主任研究員 (50344148)
• Co-Investigator(Kenkyū-buntansha): KURITA Takio 広島大学, 大学院工学研究院情報部門, 教授 (10356941)
• Project Period (FY): 2010-04-01 – 2014-03-31
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2010: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
• Keywords: パターン認識 / 画像認識 / データマイニング / ITS / カーネル法 / 教師あり学習 / アンサンブル学習 / コンピュータビジョン / 汎化性向上 / サポートベクターマシン / マルチカーネル学習法 / 汎化性向上手法 / 特徴選択 / モデル選択 / 訓練サンプル最適化

Research Abstract

A precise vehicle detection-and-tracking algorithm that is robust for the appearance change of the objects has been determined using an optimization of the training sample-set.
An algorithm for obtaining the Random-Subset SVM ensemble is determined. The algorithm combines some weak-classifiers that are trained by small samples extracted from whole training sample set. The required training time for the ensemble classifier is considered to be smaller than the training a classifier using full-set of training samples, while attaining better generalization performance.

Research Products

• [Journal Article] Real-Time Vehicle Detection using a Single Rear Camera for a Blind Spot Warning System (2012)
  • Author(s): 土谷千加夫(日産自動車株式会社)、田中慎也(日産自動車株式会社)、古性裕之(日産自動車株式会社)、西田健次、栗田多喜夫(広島大学)
  • Journal Title: International Journal of Passenger Cars - Electron. Electr. Syst Volume: 5-5 Pages: 146-153
• [Journal Article] Road Region Detection by Spatio-Temporal Graph Segmentation of Optical Flows using On-Board Cmaera (2012)
  • Author(s): 西田健次
  • Journal Title: Proc. SPPRA 2012 Volume: 1 Pages: 9-16
  • Peer Reviewed
• [Journal Article] サポートベクターマシンを用いた企業の信用格付けの予測 (2011)
  • Author(s): 田辺和俊、栗田多喜夫、西田健次、鈴木孝弘
  • Journal Title: Journal of the Japan Society for Management Information Volume: Vol.20, No.1 Pages: 23-38
  • NAID: 40018887660
  • Peer Reviewed
• [Journal Article] Multiple Random Subset-Kernel Learning (2011)
  • Author(s): K.Nishida, J.Fujiki, T.Kurita
  • Journal Title: Proc.of CAIP 2011 Pages: 343-350
  • Peer Reviewed
• [Journal Article] Ensemble Random-Subset SVM (2011)
  • Author(s): K.Nishida, J.Fujiki, T.Kurita
  • Journal Title: Proc.of IJCCI 2011 Pages: 334-339
  • Peer Reviewed
• [Journal Article] Road Plane Detection using Differential Homography Estimated by Pair Feature Matching of Local Regions (2011)
  • Author(s): 西田健次
  • Journal Title: Proc.of the Eighth IASTED International Conference on Signal Processing, Pattern Recognition, and Applications Volume: (CD-ROM) Pages: 23-29
  • Peer Reviewed
• [Journal Article] Visual Tracking Algorithm using Pixel-Pair Feature (2010)
  • Author(s): 西田健次
  • Journal Title: Proc.of 20^<th> International Conference on Pattern Recognition Volume: (CD-ROM) Pages: 1808-1811
  • Peer Reviewed
• [Presentation] Tracking by Shape with Deforming Prediction for Non-Rigid Objects (2014)
  • Author(s): 西田健次、小林匠、藤木淳(福岡大学)
  • Organizer: Proc. 3rd International Conference on Pattern Recognition Applications and Methods
  • Place of Presentation: (pp.580-587)
• [Presentation] Tracking by Shape with Deforming Prediction for Non-Rigid Objects (2014)
  • Author(s): 西田健次、小林匠、藤木淳
  • Organizer: International Conf. on Pattern Recognition Applications and Methods
  • Place of Presentation: アンジェ、フランス
• [Presentation] Road Region Detection by Spatio-Temporal Graph Segmentation of Optical Flows Using On-Board Camera (2012)
  • Author(s): 西田健次、藤木淳、小林匠、土谷千加夫(日産自動車株式会社)、田中慎也(日産自動車株式会社)、栗田多喜夫(広島大学)
  • Organizer: Proc. of International Conf. on Signal Processing, Pattern Recognition and Applications
  • Place of Presentation: (pp.9-16)
• [Presentation] Road Region Detection by Spatio-Temporal Graph Segmentation of Optical Flows using On-Board Cmaera (2012)
  • Author(s): 西田健次
  • Organizer: SPPRA
  • Place of Presentation: ぎギリシャ、クレタ島
• [Presentation] Ensemble Random-Subset SVM (2011)
  • Author(s): K.Nishida, T.Fujiki, T.Kurita
  • Organizer: IJCCI 2011
  • Place of Presentation: パリ東大学、パリ、フランス
  • Year and Date: 2011-10-01
• [Presentation] Multiple Random Subset-Kernel Learning (2011)
  • Author(s): K.Nishida, J.Fujiki, T.Kurita
  • Organizer: CAIP 2011
  • Place of Presentation: セビリア大学、セビリア、スペイン
  • Year and Date: 2011-08-01
• [Presentation] Road Plane Detection using Differential Homography Estimated by Pair Feature Matching of Local Regions (2011)
  • Author(s): 西田健次
  • Organizer: The Eighth IASTED International Conference on Signal Processing, Pattern Recognition, and Applications
  • Place of Presentation: オーストリア、インスブルック
  • Year and Date: 2011-02-17
• [Presentation] Road Plane Detection using Differential Homography Estimated by Pair Feature Matching of Local Regions (2011)
  • Author(s): 西田健次、藤木淳、土谷千加夫(日産自動車株式会社)、田中慎也(日産自動車株式会社)、栗田多喜夫(広島大学)
  • Organizer: Proc. SPPRA 2011
  • Place of Presentation: (pp.23-29)
• [Presentation] Multiple Random Subset-Kernel Learning (2011)
  • Author(s): 西田健次、藤木淳、栗田多喜夫(広島大学)
  • Organizer: Computer Analysis of Image and Patterns
  • Place of Presentation: (1-1,pp.343-350)
• [Presentation] ENSEMBLE RANDOM-SUBSET SVM (2011)
  • Author(s): 西田健次、藤木淳、栗田多喜夫(広島大学)
  • Organizer: Proc. IJCCI 2011
  • Place of Presentation: (pp.334-339)
• [Presentation] 訓練セットのランダムサンプリングによるマルチカーネル学習法 (2011)
  • Author(s): 西田健次、藤木淳、栗田多喜夫(広島大学)
  • Organizer: MIRU2011論文集
  • Place of Presentation: (pp.125-131)
• [Presentation] 環境変化やノイズに対してロバストな画像センサによる車両・二輪車計測 (2011)
  • Author(s): 小野祐樹(住友電気工業)、東久保政勝(住友電気工業)、荻内康雄(住友電気工業)、栗田多喜夫(広島大学)、西田健次、稲吉宏明
  • Organizer: 第10回ITSシンポジウム2011 proceedings
  • Place of Presentation: (pp.145-150)
• [Presentation] Visual Tracking Algorithm using Pixel-Pair Feature (2010)
  • Author(s): 西田健次
  • Organizer: 20^<th> International Conference on Pattern Recognition 2010
  • Place of Presentation: トルコ共和国、イスタンブール
  • Year and Date: 2010-08-24
• [Remarks]
  • URL: http://staff.aist.go.jp/kenji.nishida/