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Paper Abstract and Keywords
Presentation 2006-05-24 11:15
Embedding of a Qualitative Representation Language on a Two-Dimensional Plane
Kazuko Takahashi, Takao Sumitomo (Kwansei Gakuin Univ.), Izumi Takeuti (AIST)
Abstract (in Japanese) (See Japanese page) 
(in English) This paper discusses embedding of PLCA expression on a two-dimensional plane. We have proposed PLCA as a new framework for a qualitative spatial reasoning. It provides a symbolic representation for spatial data using the simple objects, $points(P), lines(L), circuits(C)$ and $areas(A)$, and the entire figure is represented in a form in which all the objects are related. In this paper, we investigate the condition for two-dimensional realizability of a PLCA expression, and derive the relation that the numbers of objects in a PLCA expression should satisfy by utilizing Euler's formula. We also give an algorithm for drawing the figure on a two-dimensional plane for a PLCA expression that satisfies this condition.
Keyword (in Japanese) (See Japanese page) 
(in English) qualitative spatial reasoning / knowledge representation / planar graph / / / / /  
Reference Info. IEICE Tech. Rep., vol. 106, no. 63, COMP2006-11, pp. 9-15, May 2006.
Paper # COMP2006-11 
Date of Issue 2006-05-17 (COMP) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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Conference Information
Committee COMP  
Conference Date 2006-05-24 - 2006-05-24 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyushu Institute of Technology 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To COMP 
Conference Code 2006-05-COMP 
Language English (Japanese title is available) 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Embedding of a Qualitative Representation Language on a Two-Dimensional Plane 
Sub Title (in English)  
Keyword(1) qualitative spatial reasoning  
Keyword(2) knowledge representation  
Keyword(3) planar graph  
1st Author's Name Kazuko Takahashi  
1st Author's Affiliation Kwansei Gakuin University (Kwansei Gakuin Univ.)
2nd Author's Name Takao Sumitomo  
2nd Author's Affiliation Kwansei Gakuin University (Kwansei Gakuin Univ.)
3rd Author's Name Izumi Takeuti  
3rd Author's Affiliation National Institute of Advanced Industrial Science and Technology (AIST)
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Speaker Author-1 
Date Time 2006-05-24 11:15:00 
Presentation Time 35 minutes 
Registration for COMP 
Paper # COMP2006-11 
Volume (vol) vol.106 
Number (no) no.63 
Page pp.9-15 
Date of Issue 2006-05-17 (COMP) 

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