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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)

Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)

Current Result Document : 9 / 32 ÀÌÀü°Ç ÀÌÀü°Ç   ´ÙÀ½°Ç ´ÙÀ½°Ç

ÇѱÛÁ¦¸ñ(Korean Title) ¼±ºÐ ±×·¡ÇÁÀÇ Á¤Á¡ ¿¬°á¼º¿¡ ´ëÇÑ ¿ÏÀü µ¿Àû ¾Ë°í¸®Áò
¿µ¹®Á¦¸ñ(English Title) Fully Dynamic Algorithm for the Vertex Connectivity of Interval Graphs
ÀúÀÚ(Author) ±èÀçÈÆ   Jae-hoon Kim  
¿ø¹®¼ö·Ïó(Citation) VOL 20 NO. 02 PP. 0415 ~ 0420 (2016. 02)
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(Korean Abstract)
¼±ºÐ ±×·¡ÇÁ(interval graph) G=(V,E)´Â Á÷¼± »óÀÇ ¼±ºÐµéÀ» ³ªÅ¸³»´Â Á¤Á¡ ÁýÇÕ V¿Í °£¼± (i,j)¡ô E´Â ¼±ºÐ I¿Í j°¡ ±³Â÷ÇÔÀ» ³ªÅ¸³»´Â °£¼±µéÀÇ ÁýÇÕ E·Î ÀÌ·ç¾îÁø´Ù. º» ³í¹®¿¡¼­´Â ±×·¡ÇÁÀÇ ¿©·¯ Ư¼º Áß¿¡¼­ Á¤Á¡ ¿¬°á¼º(vertex connectivity)¿¡ ÁÖ¸ñÇÑ´Ù. Ưº°È÷ ¼±ºÐµéÀÌ °ãÃÄÁö´Â ¸ð½ÀÀ¸·Î ¼±ºÐ ±×·¡ÇÁÀÇ Á¤Á¡ ¿¬°á¼ºÀ» ³ªÅ¸³½´Ù. ¶ÇÇÑ ¼±ºÐ ±×·¡ÇÁ¿¡¼­ Á¤Á¡À̳ª °£¼±ÀÌ Ãß°¡ µÇ°Å³ª »èÁ¦µÇ´Â ¿ÏÀü µ¿Àû (fully dynamic) ȯ°æ¿¡¼­ Á¤Á¡ ¿¬°á¼ºÀ» °è»êÇÏ´Â È¿À²ÀûÀÎ ¾Ë°í¸®ÁòÀ» Á¦¾ÈÇÒ °ÍÀÌ´Ù. Ưº°ÇÑ ÇüÅÂÀÇ ¼±ºÐ Æ®¸®(interval tree)¸¦ »ç¿ëÇÏ¿© »õ·Î¿î ¼±ºÐÀÌ Ãß°¡µÇ°Å³ª »èÁ¦µÇ´Â »óȲ ÇÏ¿¡¼­ Á¤Á¡ ¿¬°á¼ºÀ» °è»êÇÏ°í Æ®¸®¸¦ À¯ÁöÇϴµ¥ O(logn) ½Ã°£ÀÌ ¼Ò¿äµÊÀ» º¸ÀÏ °ÍÀÌ´Ù.
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(English Abstract)
A graph G=(V,E) is called an interval graph with a set V of vertices representing intervals on a line such that there is an edge(i,j) ¡ô E if and only if intervals i and j intersect. In this paper, we are concerned in the vertex connectivity, one of various characteristics of the graph. Specifically, the vertex connectivity of an interval graph is represented by the overlapping of intervals. Also we propose an efficient algorithm to compute the vertex connectivity on the fully dynamic environment in which the vertices or the edges are inserted or deleted. Using a special kind of interval tree, we show how to compute the vertex connectivity and to maintain the tree in O(logn) time when a new interval is added or an existing interval is deleted.
Å°¿öµå(Keyword) ¼±ºÐ ±×·¡ÇÁ   Á¤Á¡ ¿¬°á¼º   ¿ÏÀü µ¿Àû   ¼±ºÐ Æ®¸®   ¾Ë°í¸®Áò   ¼±ºÐ   interval graph   vertex connectivity   fully dynamic   interval tree   algorithm   interval  
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