[B! shortest-path-problem] nabinnoã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

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shortest-path-problemã«é–¢ã™ã‚‹nabinnoã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (6)

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nabinno 2024/11/04
shortest-path-problem

algorithm

graph-theory

data-structure

rust

wasm
ãƒªãƒ³ã‚¯
æ‰‹ç¶šãåž‹è¨€èªžOCaml - fetburner.core
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nabinno 2018/03/27
ocaml

floyd-warshall-algorithm

shortest-path-problem

algorithm

graph-theory

data-structure
ãƒªãƒ³ã‚¯
ãƒ¯ãƒ¼ã‚·ãƒ£ãƒ«â€“ãƒ•ãƒã‚¤ãƒ‰æ³• - Wikipedia
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nabinno 2014/07/07
floyd-warshall-algorithm

graph-theory

algorithm

mathematics
ãƒªãƒ³ã‚¯
æœ€çŸçµŒè·¯å•é¡Œ - Wikipedia
ã‚°ãƒ©ãƒ•ç†è«–ã«ãŠã‘ã‚‹æœ€çŸçµŒè·¯å•é¡Œï¼ˆã•ã„ãŸã‚“ã‘ã„ã‚ã‚‚ã‚“ã ã„ã€è‹±: shortest path probl emï¼‰ã¨ã¯ã€é‡ã¿ä»˜ãã‚°ãƒ©ãƒ•ã®ä¸Žãˆã‚‰ã‚ŒãŸ2ã¤ã®ãƒŽãƒ¼ãƒ‰é–“ã‚’çµã¶çµŒè·¯ã®ä¸ã§ã€é‡ã¿ãŒæœ€å°ã®çµŒè·¯ã‚’æ±‚ã‚ã‚‹æœ€é©åŒ–å•é¡Œã§ã‚ã‚‹ã€‚ 2é ‚ç‚¹å¯¾æœ€çŸçµŒè·¯å•é¡Œ ç‰¹å®šã®2ã¤ã®ãƒŽãƒ¼ãƒ‰é–“ã®æœ€çŸçµŒè·¯å•é¡Œã€‚ä¸€èˆ¬çš„ã«å˜ä¸€å§‹ç‚¹æœ€çŸçµŒè·¯å•é¡Œã®ã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ ã‚’ä½¿ç”¨ã™ã‚‹ã€‚ å˜ä¸€å§‹ç‚¹æœ€çŸçµŒè·¯å•é¡Œ (SSSPï¼šSingle Source Shortest Path) ç‰¹å®šã®1ã¤ã®ãƒŽãƒ¼ãƒ‰ã‹ã‚‰ä»–ã®å…¨ãƒŽãƒ¼ãƒ‰ã¨ã®é–“ã®æœ€çŸçµŒè·¯å•é¡Œã€‚ã“ã®å•é¡Œã‚’è§£ãã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ ã¨ã—ã¦ã¯ã€ãƒ€ã‚¤ã‚¯ã‚¹ãƒˆãƒ©æ³•ã‚„ãƒ™ãƒ«ãƒžãƒ³-ãƒ•ã‚©ãƒ¼ãƒ‰æ³•ãŒã‚ˆãçŸ¥ã‚‰ã‚Œã¦ã„ã‚‹ã€‚ å…¨ç‚¹å¯¾æœ€çŸçµŒè·¯å•é¡Œ (APSPÂ : All Pair Shortest Path) ã‚°ãƒ©ãƒ•å†…ã®ã‚ã‚‰ã‚†ã‚‹2ãƒŽãƒ¼ãƒ‰ã®çµ„ã¿åˆã‚ã›ã«ã¤ã„ã¦ã®æœ€çŸçµŒè·¯å•é¡Œã€‚ã“ã®å•é¡Œã‚’è§£ãã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ ã¨ã—ã¦ã¯ã€ãƒ¯ãƒ¼ã‚·ãƒ£ãƒ«-ãƒ•ãƒã‚¤ãƒ‰æ³•ãŒçŸ¥ã‚‰ã‚Œã¦ã„ã‚‹ã€‚ ã“ã®ã‚ˆã†
nabinno 2013/05/07
shortest-path-problem

algorithm

search
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ãƒ€ã‚¤ã‚¯ã‚¹ãƒˆãƒ©æ³• - Wikipedia
ãƒ€ã‚¤ã‚¯ã‚¹ãƒˆãƒ©æ³•ã®å‹•ä½œã®ã‚¢ãƒ‹ãƒ¡ãƒ¼ã‚·ãƒ§ãƒ³ ãƒ€ã‚¤ã‚¯ã‚¹ãƒˆãƒ©æ³•ï¼ˆã ã„ãã™ã¨ã‚‰ã»ã†ã€è‹±: Dijkstra's algorithmï¼‰ã¯ã‚°ãƒ©ãƒ•ç†è«–ã«ãŠã‘ã‚‹è¾ºã®é‡ã¿ãŒéžè² æ•°ã®å ´åˆã®å˜ä¸€å§‹ç‚¹æœ€çŸçµŒè·¯å•é¡Œã‚’è§£ããŸã‚ã®æœ€è‰¯å„ªå…ˆæŽ¢ç´¢ã«ã‚ˆã‚‹ã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ ã§ã‚ã‚‹ã€‚ ãƒ€ã‚¤ã‚¯ã‚¹ãƒˆãƒ©æ³•ã¯ã€1959å¹´ã‚¨ãƒ‰ã‚¬ãƒ¼ãƒ»ãƒ€ã‚¤ã‚¯ã‚¹ãƒˆãƒ©ã«ã‚ˆã£ã¦è€ƒæ¡ˆã•ã‚ŒãŸã€‚ å¿œç”¨ç¯„å›²ã¯åºƒãOSPFãªã©ã®ã‚¤ãƒ³ã‚¿ãƒ¼ãƒãƒƒãƒˆãƒ«ãƒ¼ãƒ†ã‚£ãƒ³ã‚°ãƒ—ãƒãƒˆã‚³ãƒ«ã‚„ã€ã‚«ãƒ¼ãƒŠãƒ“ã®çµŒè·¯æŽ¢ç´¢ã‚„é‰„é“ã®çµŒè·¯æ¡ˆå†…ã«ãŠã„ã¦ã‚‚åˆ©ç”¨ã•ã‚Œã¦ã„ã‚‹ã€‚ ã»ã‹ã®ã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ ã¨ã—ã¦ã€ æœ€çŸçµŒè·¯é•·ã®æŽ¨å®šå€¤ã‚’äº‹å‰ã«çŸ¥ã£ã¦ã„ã‚‹ã¨ãã¯ã€ãƒ€ã‚¤ã‚¯ã‚¹ãƒˆãƒ©æ³•ã®æ”¹è‰¯ç‰ˆã§ã‚ã‚‹A*ã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ ã‚’ç”¨ã„ã¦ã€ã‚ˆã‚ŠåŠ¹çŽ‡çš„ã«æœ€çŸçµŒè·¯ã‚’æ±‚ã‚ã‚‹ã“ã¨ãŒã§ãã‚‹ã€‚ è¾ºã®é‡ã¿ãŒå…¨ã¦åŒä¸€ã®éžè² æ•°ã®å ´åˆã¯å¹…å„ªå…ˆæŽ¢ç´¢ãŒã‚ˆã‚Šé€Ÿãã€ç·šå½¢æ™‚é–“ã§æœ€çŸè·¯ã‚’è¨ˆç®—å¯èƒ½ã§ã‚ã‚‹ã€‚ ç„¡å‘ã‚°ãƒ©ãƒ•ã§è¾ºã®é‡ã¿ãŒæ£æ•´æ•°ã®å ´åˆã¯ã€Thorupã®ã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ [1]ã«ã‚ˆã£ã¦ç·šå½¢æ™‚é–“ã§ã®è¨ˆç®—ãŒå¯èƒ½
nabinno 2013/05/07
dijkstras-algorithm

algorithm

search

search-engine

shortest-path-problem
ãƒªãƒ³ã‚¯
kfka.net
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nabinno 2013/05/06
wikipedia

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tools

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shortest-path-problem

dijkstras-algorithm
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