Research

My interesting Field

Paper

  1. Kensuke Onishi, Nobuki Takayama : Construction of Voronoi Diagram on the Upper Half-plane, IEICE Transactions on Fundamentals, Vol.E79-A No4, pp. 533-539, 1996.
  2. Kensuke Onishi: Riemannian Computational Geometry --The Convex Hull and Voronoi Diagram in Hyperbolic Space --, Computational Geometry: Theory and Applications, submitted.
  3. Kensuke Onishi, Hiroshi Imai: Riemannian Computational Geometry -- Voronoi Diagram and Delaunay-type triangulation in Dually Flat Space --, Discrete & Computational Geometry, submitted.
  4. Kensuke Onishi, Jin-ichi Itoh: Voronoi Diagram in Simply Connected Complete Manifold, IEICE Transactions on Fundamentals, Vol. E85-A No5, pp. 944-948, 2002.
  5. Kensuke Onishi, Mamoru Hoshi: Properties of Optimal Regions for Binary Search Trees, Preprint.
  6. Akihiro Kimura, Kensuke Onishi, Michihiro Kobayakawa, Mamoru Hoshi, Tadashi Ohmori: Distance conversion rule for arbitarary Lp distance (in Japanese), IPSJ Transactions on Database, Vol. 46, No.SIG8 (TOD26), pp. 93-105, 2005.
  7. Kensuke Onishi, Michihiro Kobayakawa, Mamoru Hoshi: mm-GNAT: Index Structure for Arbitrary Lp Norm IPSJ Transactions on Database, Vol.3, No.3, pp. 88-95, 2010.

Conference Paper

  1. Kensuke Onishi : Voronoi Diagram in the d-dimensional hyperbolic space, Proc. of the International Symposium on Combinatorics and Applications, pp. 314-324, Nankai University, Tianjin, China, 1996.
  2. Kensuke Onishi, Hiroshi Imai : Voronoi Diagram in Statistical Parametric Space by Kullback-Leibler Divergence, Proc. of Thirteenth ACM Symposium on Computational Geometry, pp. 463-465, Nice, France, 1997.
  3. Kensuke Onishi, Hiroshi Imai : Voronoi Diagram for an Exponential Family of Probability Distributions in Information Geometry, Proc. of JAPAN-KOREA Joint Workshop'97 on Algorithm and Computation, pp. 1-8, Kyushu University, Fukuoka, Japan, 1997.
  4. Kensuke Onishi: Voronoi Diagram for the Dually Flat Space. Proc. of Sixteenth International Symposium on Mathematical Programming, p. 203, Lauzanne, Switzerland, 1997.
  5. Kunihiko Sadakane, Hiroshi Imai, Kensuke Onishi, Mary Inaba, Fumihiko Takeuchi and Keiko Imai: Voronoi Diagrams by Divergences with Additive Weight. Proc. of Fourteenth ACM Symposium on Computational Geometry, pp. 403-404, Minneapolis, United States, 1998.
  6. Kensuke Onishi, Hiroshi Imai: Delaunay-type Triangulation in the Dually Flat Space, Proc. of Tenth Canadian Conference on Computational Geometry, pp. 102-103, Montreal, Canada, 1998 (URL: http://www.cccg.ca/proceedings/1998/cccg98-onishi-riemannian.ps.gz).
  7. Kensuke Onishi: Intersection of Voronoi Regions by Lp distance, Proc. of Japan Conference on Discrite and Computational Geometry '99, pp. 26-28, Tokai Unibersity, Tokyo, 1999.
  8. Kensuke Onishi, Michihiro Kobayakawa, Mamoru Hoshi, Tadashi Ohmori: A Feature Independent of Bit Rate for TwinVQ Audio Retrieval, 2001 IEEE International Conference on Multimedia and Expo (ICME 2001), pp. 409-412, Tokyo, Japan, 2001.
  9. Kensuke Onishi, Jin-ichi Itoh: Estimation of the Necessary Number of Points in Riemannian Voronoi Diagram, Proc. of 15th Canadian Conference on Computational Geometry, pp. 19-24, Halifax, Canada, 2003.
  10. Michihiro Kobayakawa, Takashi Okunaru, Kensuke Onishi, Mamoru Hoshi: A New Method for Extracting a Period of Beat of Music in Compressed Domain of TwinVQ Audio Compression, Proc. of 2003 Joint Conference of the Fourth International Conference on Information, Communications and Signal Processing and Fourth Pacific-Rim Conference on Multimedia, Singapore, Singapore, 2003.
  11. Kensuke Onishi: Adjacency of Optimal regions for Huffman trees, Proc. of Tenth International Computing and Combinatorics Conference (COCOON 2004), LNCS 4835, pp.13-22, Jeju Island, Korea, 2004.
  12. Akihiro Kimura, Kensuke Onishi, Mamoru Hoshi, Tadashi Ohmori, Kobayakawa Michihiro: Distance conversion rule for arbitarary Lp distance (in Japanese), Proc. of DBWeb 2004, pp.41-48, Tokyo, Japan, 2004.
  13. Kensuke Onishi, Mamoru Hoshi: Optimal Region for Binary Search Tree, Rotation and Polytope, Proc. of OPERATIONS RESEARCH AND ITS APPLICATIONS, The Fifth International Symposium(Lecture Notes in Operations Research 5), pp. 255-266, Tibet, China, 2005.
  14. Kobayakawa Michihiro, Kensuke Onishi, Mamoru Hoshi: A Method for Retrieving Music Data with Different Bit Rates using MPEG-4 TwinVQ Audio Compression, Proc. of the 13th ACM International Conference on Multimedia, pp. 459-462, Singapore, 2005.
  15. Kensuke Onishi, Kobayakawa Michihiro, Mamoru Hoshi: mm-GNAT: index structure for arbitary Lp norm, Proc of The Second IEEE International Workshop on Multimedia Database and Data Management, pp. 117-126, Istanbul, Turkey, 2007.
  16. Kensuke Onishi, Mamoru Hoshi: Cover Ratio of Absolute Neighbor, Proc. of Workshop on Algorithms and Computation 2008, LNCS 4921, pp. 70-80, Dhaka, Bangladesh, 2008.
  17. Kensuke Onishi, Mamoru Hoshi: Computing a Sequence of Circumscribing Polygons for Convex Polygon, Proc. of Computational Geometry and Discrete Mathematics, RIMS Koukyuroku 1641, pp.90-98, Kyoto, Japan, 2009.
  18. Kensuke Onishi, Mamoru Hoshi: Computing a Sequence of Circumscribing Polygons for Simple Polygon, Proc. of CGGA 2010(The China-Japan Joint Conference on Computational Geometry, Graphs and Applications, pp.94-95, Dalian, China, 2010.
  19. Xie Pingfang, Kensuke Onishi: Generation Methods of Separation Points Set For mm-GNAT, Proc. of the MJIIT-JUC Joint International Symposium 2013, pp.1-4, Hiratsuka, Japan, 2013.
  20. Kensuke Onishi: A Method for Computing a Sequence of Circumscribing Polygons and its Analysis, Proc. of 2015 International Symposium on Operations Research and Its Applications (ISORA), pp.34-40, Luoyang, China, 2015.
  21. Kensuke Onishi: Indoor Position Detection Using BLE Signals Based on Voronoi Diagram Intelligent Software Methodologies, Tools and Techniques, Communications in Computer and Information Science 532. Proc. of 14th International Conference, SoMeT 2015, pp.18-29, Naples, Italy, 2015.
  22. Kensuke Onishi: A Computation Algorithm for the Configuration of BLE Devices Using k-Means Method, New Trends in Software Methodologies, Tools and Techniques, Vol.286 , pp.15-26, Larnaca, Cyprus, 2016.
KensukeOnishi@acm.org, onishi@tokai-u.jp
Index page,
Department of Mathematical Sciences,
Tokai University.