アクセス履歴を考慮したファイル間の関連度を用いたデスクトップ検索
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(2) ߦ㧘ߎߩࡕ࠺࡞ࠍ↪ߡ㧘ᣢሽߩ࠺ࠬࠢ࠻࠶ࡊᬌ⚝ߣ. ߢࠆ㧚. ߪ⇣ߥࠆⷰὐߦၮߠߚ࠺ࠬࠢ࠻࠶ࡊᬌ⚝ࠪࠬ࠹ࡓࠍ. ઍ ߣ ߒ ߡ 㧘Google ࡄ ࠰ ࠽ ࠗ ࠭ ࠼ ᬌ ⚝ [8]߇ ߍ ࠄ ࠇ ࠆ 㧚 Google ࡄ ࠰ ࠽ ࠗ ࠭ ࠼ ᬌ ⚝ ߩ ႐ ว 㧘. ታⵝߒ㧘⹏ଔࠍⴕߞߚ㧚 ᧄ⺰ᢥߩᱷࠅߪએਅߩࠃ߁ߦ᭴ᚑߐࠇࠆ㧚㧞▵ߢ㑐. ↪⠪ߩㆬᅢߪ㧘ᬌ⚝ߩ㓙ߦജߐࠇߚ⺆߿㧘ᬌ⚝⚿. ㅪ⎇ⓥߦߟߡㅀߴࠆ㧚㧟▵ߢߪ㧘࠺ࠬࠢ࠻࠶ࡊߩ. ᨐߩ߁ߜታ㓙ߦࠢ࠶ࠢߒߚ⚿ᨐ߆ࠄ⥄േ↢ᚑߐࠇࠆ㧚. ࡈࠔࠗ࡞ߦ․ߩᕈ⾰ߦߟߡㅀߴࠆ㧚㧠▵ߢ㧘࠺ࠬ. ↪⠪ߩࠕࠢࠬጁᱧࠍ↪ࠆὐ߇㘃ૃߒߡࠆ߇㧘. ࠢ ࠻ ࠶ ࡊ ᬌ ⚝ ߩ ⺖ 㗴 ߦ ߟ ߡ ⺑ ߔ ࠆ .㧡 ▵ ߢ ᣂ ߒ . ኻ⽎ߣߔࠆᢥᦠ㓸ว߇⇣ߥࠆὐߣ㧘ጁᱧࠍᬌ⚝⚿ᨐߦ. ࡈࠔࠗ࡞㓸วࡕ࠺࡞ߦߟߡ␜ߒ㧘㧢▵ߢߘߩࡕ࠺࡞. ᱜࠍ߆ߌࠆߚߩߺߦ↪ߡࠆὐߦ߅ߡ㧘ጁᱧ. ൻߦᔅⷐߥౕ⊛ߥ㑐ㅪᐲࡕ࠺࡞ࠍቯ⟵ߔࠆ㧚㧣▵ߢ. ࠍᖱႎߩ✬ᚑߦ↪ࠆᧄ⎇ⓥߣᄢ߈ߊ⇣ߥࠆ㧚. ߪ㧘ߘߩࡕ࠺࡞ࠍ↪ߡⴕߞߚ㑐ㅪᐲታ㛎ߦߟ. 2.3. ᖱ ႎ 䈱㓸 ⚂. ߡ⺑ߔࠆ㧚ᦨᓟߦ㧤▵㧘㧥▵ߢᓟߩ⺖㗴ߣ߹ߣ ߦߟߡㅀߴࠆ㧚. ࠺ࠬࠢ࠻࠶ࡊߦߪ᭽ߥޘᖱႎ߇♽ൻߐࠇߥ ߹߹ᢔߒߡࠆ㧚߹ߚࠆ⋡⊛ߩᖱႎ߇㧘৻ߟߩࡈ ࠔࠗ࡞ߦኻᔕߒߡࠆߣߪ㒢ࠄߥ㧚ࠆ৻ߟߩᖱႎ. 2. 㑐 ㅪ ⎇ ⓥ. ߇㧚ⶄᢙߩࡈࠔࠗ࡞ߦಽᢔߒߡࠆ႐ว߇ࠆ㧚߃. 2.1. 䊂䉴䉪䊃䉾䊒ᬌ ⚝. ߫㧘Ყセߔߴ߈ੑߟߩታ㛎ߩജࡈࠔࠗ࡞߇㧘⇣ߥߞ. ࠺ࠬࠢ࠻࠶ࡊߩᖱႎߪ↪⠪ߦߣߞߡᣢ⍮ߢ. ߚࡈࠔࠗ࡞ߣߒߡሽߒߡࠆ႐วߢࠆ㧚߹ߚ㧘ㅒ. ࠅ㧘ߘߩᢛℂಽ㘃ߪ↪⠪߇▤ℂߔࠆߎߣ߇೨ឭߢ. ߦ⋡⊛ߩᖱႎ߇㧘ᄢ߈ߥࡈࠔࠗ࡞ߩ৻ㇱߣߒߡ߹ࠇ. ߞߚ㧚ߒ߆ߒ㧘ᄙ᭽ߥ࠺࠲߇㔚ሶൻߐࠇ㧘ࡄ࠰. ߡࠆߎߣ߽ࠆ㧚ߎߩ႐ว㧘ߘߩࡈࠔࠗ࡞߇ߟ߆. ࠽࡞ࠦࡦࡇࡘ࠲ߦᄢ㊂ߦሽߐࠇࠆࠃ߁ߦߥߞߚ. ߞ ߡ ߽ 㧘ߘ ߩ ਛ ߦ ߅ ߡ ᬌ ⚝ ࠍ ⴕ ࠊ ߥ ߌ ࠇ ߫ ߥ ࠄ ߥ 㧚. 㧘ੱ ᚻ ߦ ࠃ ࠆ ಽ 㘃 ߪ ࿎ 㔍 ߦ ߥ ߞ ߡ ߈ ߡ ࠆ 㧚ߘ ߎ ߦ 㧘. ߎࠇࠄߩࠃ߁ߦሽߐࠇߡࠆᖱႎࠍ➅ߒ↪. ࠺ࠬࠢ࠻࠶ࡊᬌ⚝ߦኻߔࠆ㔛ⷐ߇↢ߓߚ㧚ߎ߁ߒߚ⚻. ߔࠆ႐ว㧘ᐲ߽ࡈࠔࠗ࡞ౝᬌ⚝ࠍߒߚࠅ㧘ⶄᢙߩࡈ. ✲߆ࠄ㧘࠺ࠬࠢ࠻࠶ࡊᬌ⚝ߪ࠙ࠚࡉᬌ⚝߿ᢥᦠᬌ⚝ߦ. ࠔࠗ࡞ࠍᲧߴߚࠅߔࠆߥߤߣᾘ㔀ߥᠲ߇ᔅⷐߦߥ. Ყߴߡᣂߒಽ㊁ߢࠆ㧚. ࠆ㧚ߎ߁ߒߚ㗴ࠍ㧘ᖱႎࠍᔅⷐߥㇱಽߛߌ㓸⚂ߒ㧘. ᣢ ሽ ߩ ࠺ ࠬ ࠢ ࠻ ࠶ ࡊ ᬌ ⚝ ߣ ߒ ߡ 㧘Google ࠺ ࠬ ࠢ ࠻ ࠶. ᬌ⚝ᕈߩ㜞⁁ᘒߢ▤ℂߔࠆߎߣߢ⸃ߒࠃ߁ߣ߁. ࠨ ࠴ [3] 㧘. ࠕ ࡊ ࠤ ࠪ ࡚ ࡦ ߇ 㧘 Office OneNote[5] ߿ Google. Spotlight[4]߇ ߍ ࠄ ࠇ ࠆ 㧚 Google ࠺ ࠬ ࠢ ࠻ ࠶ ࡊ ᬌ ⚝. Notebook[6]ߢ ࠆ 㧚ߎ ࠇ ࠄ ߪ 㧘ᧄ ⎇ ⓥ ߣ ߪ 㧘ᚻ ᴺ ߪ ᄢ. ߪ࠺ࠬࠢ࠻࠶ࡊࡈࠔࠗ࡞ߦኻߒߡ߽ጁᱧࠍሽߒߡ. ߈ߊ⇣ߥࠆ߇㧘⋡⊛ߪᧄ⎇ⓥߣหߓ࠺ࠬࠢ࠻࠶ࡊߩ. ࠆ ὐ ߇ ․ ᓽ ߢ ࠆ 㧚 Windows ࠺ ࠬ ࠢ ࠻ ࠶ ࡊ ࠨ ࠴ 㧘. ᖱႎ߳ߩࠕࠢࠨࡆ࠹ࠖߩะߢࠆ㧚. ࡊ ᬌ ⚝ [2] 㧘 Windows ࠺ ࠬ ࠢ ࠻ ࠶ ࡊ. Spotlight ߪ ࡈ ࠔ ࠗ ࡞ ߦ ઃ ਈ ߐ ࠇ ߚ ࡔ ࠲ ࠺ ࠲ ࠍ ↪ ߒߡࠆὐ߇․ᓽߣߒߡߍࠄࠇࠆ㧚ߎࠇࠄߩ࠺ࠬࠢ. 3. ࠺ ࠬ ࠢ ࠻ ࠶ ࡊ ߩ ࡈ ࠔ ࠗ ࡞ ߩ ᕈ ⾰. ࠻࠶ࡊᬌ⚝ࠪࠬ࠹ࡓߪߕࠇ߽↪⠪߆ࠄਈ߃ࠄࠇߚ. ࠺ࠬࠢ࠻࠶ࡊߩࡈࠔࠗ࡞ߪ㧘࠙ࠚࡉᢥᦠ߿ᢥᦠ㓸. ᢥሼߦᔕߓߚ⚿ᨐࠍജߒ㧘ࡈࠔࠗ࡞㑆ߩ㑐ㅪߦߟ. วߣߪ⇣ߥࠆᕈ⾰ࠍᜬߟ㧚ᧄ▵ߢߪ㧘ဋ⾰ᕈ㧘ࡦࠢ. ߡߪ⠨ᘦߒߡߥ㧚ߘߩὐ߇ᧄ⎇ⓥߣ⇣ߥࠆὐߢ. ᖱ ႎ ߩ ή 㧘ቢ ⚿ ᕈ ߩ ਃ ߟ ߩ ⋧ ㆑ ὐ ߦ ߟ ߡ ⺑ ߔ ࠆ 㧚. ࠆ㧚. 3.1. ဋ ⾰ ᕈ. 2.2. 䊌䊷䉸䊅䊤䉟䉵䊄ᬌ ⚝. ߎߎߢߪဋ⾰ᕈࠍ㧘ᢥᦠ㐳ߩಽᏓߣ㧘⸒⪲㆜߇ቯ. ࡄ࠰࠽ࠗ࠭࠼ᬌ⚝ߣߪ㧘↪⠪ߩㆬᅢߦᔕߓߡ. ဳ⊛߆ߤ߁߆ߢ⹏ଔߔࠆ㧚. ᬌ⚝⚿ᨐ߇ࠞࠬ࠲ࡑࠗ࠭ߐࠇࠆᬌ⚝ࠨࡆࠬߩߎߣߢ. ᓥ᧪ߩᢥᦠᬌ⚝߇ኻ⽎ߣߔࠆᢥᦠ㓸วߪ㧘ဋ⾰ᕈ߇. ࠆ㧚ࠆߪࠦࡦ࠹ࠠࠬ࠻ࠍᤋߒߚᬌ⚝ߣߔ. 㜞 㧚ౖ ဳ ⊛ ߥ ߣ ߒ ߡ ⺰ ᢥ ߩ 㓸 ว ࠍ ߍ ߡ ⺑ ߔ ࠆ 㧚. ࠆߎߣ߽ߢ߈ࠆ㧚߃߫㧘ੑੱߩ↪⠪߇หߓࠖࡈޟ. ⺰ᢥߪ৻ቯߩ࡞࡞ߦၮߠߡ⸥ㅀߐࠇߡࠆ㧚ߘߩ. ࠶ࠪࡦࠣ߁ߣޠᬌ⚝⺆ࠍജߒߚ႐ว㧘ᣢሽߩ࠙ࠚ. ߚ㧘⺕߇ᦠߚ߆ߦ㑐ࠊࠄߕᢥᦠ㐳ߪ߶߷৻ቯߢ. ࡉᬌ⚝ߪ㧘↪⠪ߩᗧ࿑ߦ㑐ࠊࠄߕห৻ߩ⚿ᨐࠍജ. ࠆ㧚߹ߚ㧘⊛ߥ߽ߩߢࠆߚ㧘⸒⪲㆜߽ቯဳ⊛. ߔ ࠆ 㧚ߒ ߆ ߒ 㧘ℂ ᗐ ⊛ ߦ ࡄ ࠰ ࠽ ࠗ ࠭ ߐ ࠇ ߡ ࠇ ߫ 㧘. ߢ ࠆ 㧚ߘ ߩ ߚ 㧘tf-idf ࡕ ࠺ ࡞ ࠍ ᆎ ߣ ߔ ࠆ න ⺆ ߩ . ৻ ᣇ ߪ ㊒ ࠅ ߦ 㑐 ߔ ࠆ ㆬ ᅢ ߇ ᒝ ߩ ߢ ㊒ ࠅ 㧔 fishing㧕 ߦ. 㗫ᐲࠍ↪ߒߚ․ᓽ㊂ߦࠃࠆࡕ࠺࡞߇㧘ታ㓙ߩᢥᦠ. 㑐ㅪߒߚࡍࠫ߇ߦ␜ߐࠇࠆ߇㧘৻ᣇߪࠗࡦ࠲. 㓸วࠍࠃߊㄭૃߔࠆ㧚. ࡀ࠶࠻‽⟋ߦߟߡߩㆬᅢ߇ᒝ߆ߞߚߩߢࡈࠖ࠶ࠪ. ߎࠇߦኻߒߡ㧘࠙ࠚࡉᢥᦠߪဋ⾰ᕈ߇ૐ㧚⚂߇. ࡦ ࠣ 㧔 phishing㧕 ⹊ ᱂ ߦ 㑐 ߔ ࠆ ࡍ ࠫ ߇ ߦ ␜ ߐ. ሽߒߥߚ㧘ᢥᦠ㐳߇ᐢ▸࿐ߦಽᏓߒߡࠆ㧚߹. ࠇࠆ㧚ߎߩ߆ࠄಽ߆ࠆࠃ߁ߦ㧘ࡄ࠰࠽ࠗ࠭࠼ᬌ. ߚ㧘⊛ߥᢥᦠߣ⑳⊛ߥᢥᦠ߇ᷙߒߡࠆߚ㧘⸒. ⚝ߪ㧘↪⠪ߏߣߦㆡߒߚ⚿ᨐࠍജߔࠆߚߩᛛⴚ. ⪲ ㆜ ߩ ߫ ࠄ ߟ ߈ ߇ ᄢ ߈ 㧚ታ ↪ ߢ ߪ ,ᬌ ⚝ ⚿ ᨐ ߢ . -2−142−.
(3) ߦ␜ߐࠇࠆߎߣࠍ⋡⊛ߦᕭᗧ⊛ߦࠠࡢ࠼ࠍၒ. ᜬߞߡࠇ߫㧘ෳ⠨ᢥ₂ࠍෳᾖߖߕߦ㧘ℂ⸃ߢ߈ࠆࠃ. ㄟࠎߢࠆᢥᦠߩሽ߽㗴ߣߥࠆ㧚. ߁ߦ᭴ᚑߐࠇߡࠆ㧚. ࠺ࠬࠢ࠻࠶ࡊߩࡈࠔࠗ࡞߽߹ߚဋ⾰ᕈ߇ૐ㧚. ኻᾖ⊛ߦ㧘࠙ࠚࡉᢥᦠߦߪ㧘ቢ⚿ᕈ߇ૐ߽ߩ߇ሽ. ↪ ⠪ ߦ ࠃ ߞ ߡ ⁁ ᴫ ߪ ᄌ ࠊ ࠆ ߚ 㧘৻ ߦ ߪ ⸒ ߃ ߥ ߇ 㧘. ߔࠆ㧚࠙ࠚࡉᢥᦠߪࡦࠢᖱႎࠍᜬߟߚ㧘ߘࠇ⥄. ⚂߇ήߚ㧘ᢥᦠ㓸วߣᲧセߒߡ㧘ᢥᦠ㐳߇ᐢ▸. りߢቢ⚿ߒߡߥߊߣ߽㧘ෳᾖవߦ↪⠪ࠍኈᤃߦ⺃. ࿐ߦಽᏓߒߡࠆ㧚߹ߚߘߩಽᏓ߽৻᭽ߢߪߥ㧚࠺. ዉߢ߈ࠆߚߢࠆ㧚ࡐ࠲࡞ࠨࠗ࠻߿ᬌ⚝ࠛࡦࠫ. ࠬࠢ࠻࠶ࡊᬌ⚝߇ኻ⽎ߣߔࠆ߽ߩߦߪ↹߿㖸ᭉ߽. ࡦ߇ߘߩᦨߚࠆߢࠆ㧚ߘࠇࠄߩࠨࠗ࠻ߪ㧘↪⠪. ߹ࠇࠆ㧚ߘࠇࠄߩᖱႎߦߪᢥሼ߇߶ߣࠎߤ߹ࠇߥ. ߩ⺃ዉࠍᦨᄢߩ⋡⊛ߣߒߡࠆ㧚. 㧚ᰴߦ㧘⸒⪲㆜ߦߟߡ⠨ኤߔࠆ㧚࠺ࠬࠢ࠻࠶ࡊ. ࠺ࠬࠢ࠻࠶ࡊߩࡈࠔࠗ࡞ߦ߽㧘ቢ⚿ᕈ߇ૐ߽ߩ. ߦߪઁੱߦߖࠆߎߣࠍ೨ឭߣߒߚᢥ┨ߣ㧘↪⠪. ߇ሽߔࠆ㧚․ߦ↪⠪ߛߌ߇ࠆߎߣࠍ೨ឭߣߒߡ. ⥄りߛߌ߇⺒ߎߣࠍ೨ឭߣߒߚᢥ┨߇ᷙߔࠆߚ㧘. ࠆᖱႎߪ㧘↪⠪ߐ߃ᛠីߒߡࠇ߫㧘߹ߣߥߊ. ⸒⪲㆜ߪ㕖ቯဳ⊛ߢࠆ㧚. ߣ߽ਇㇺวߪ↢ߓߥߚ㧘ቢ⚿ᕈ߇ૐߊߥࠆะ߇. ᓥߞߡ㧘࠙ࠚࡉᢥᦠߣ࠺ࠬࠢ࠻࠶ࡊߩࡈࠔࠗ࡞ࠍ㧘. ᒝߢࠈ߁㧚ߒ߆ߒ㧘࠺ࠬࠢ࠻࠶ࡊߩࡈࠔࠗ࡞ߪ. න⺆ߩ㗫ᐲࠍ↪ߒߚ․ᓽ㊂ߩߺߦࠃߞߡ⹏ଔߔ. ࡦࠢᖱႎࠍᜬߢ߈ߥߚ㧘ߌߛ࡞ࠗࠔࡈߩޘ. ࠆߎߣߪ㧘ᅷᒰᕈߦᰳߌࠆߣ⠨߃ࠄࠇࠆ㧚. ߢߪ㧘ᖱႎߩଔ୯߇ૐਅߔࠆ႐ว߇ࠆ㧚߃߫㧘ታ. 3.2. 䊥䊮䉪ᖱ ႎ 䈱 ή. 㛎ߩജࡈࠔࠗ࡞ߪ㧘ߘࠇනߢߪᄢ߈ߥᗧࠍᚑߐ. ᧄ▵ߦ߅ߡߪ㧘ࠆᖱႎ߇㧘㑐ㅪߔࠆઁߩᖱႎࠍ ࠦࡦࡇࡘ࠲ߢ␜ߔࠆߎߣ߇น⢻ߢࠆ႐วߦ㒢. ߥ㧚⹏ଔ㧘⠨ኤࠍ⸥ㅀߒߚࡈࠔࠗ࡞ߣߦߞߡ㧘 ೋߡᗧࠍߥߔ㧚. ࠅ㧘ߘߩᖱႎߦߪࡦࠢ᭴ㅧࠍߔࠆߣߔࠆ㧚 ߹ ߕ ᢥ ᦠ 㓸 ว ߦ ߟ ߡ ⠨ ኤ ߔ ࠆ 㧚㧟 .㧝 ▵ ߢ ߣ ߒ ߡ. 4. ࠺ ࠬ ࠢ ࠻ ࠶ ࡊ ᬌ ⚝ ߩ ⺖ 㗴. ߍߚ⺰ᢥ㓸วߩ႐วߪ⺰ߩޘᢥ߇ෳ⠨ᢥ₂ᖱႎࠍ. ᧄ▵ߩ⋡⊛ߪ㧘↪⠪ߩ⋡⊛ߣ㧘㧟▵ߢㅀߴߚ࠺ࠬ. ࠎߢࠆ㧚ߒ߆ߒ㧘ߘߩઁߩ႐วߪ৻⥸ߦߪ߹ࠇ. ࠢ࠻࠶ࡊߩࡈࠔࠗ࡞ߩᕈ⾰߆ࠄ㧘࠺ࠬࠢ࠻࠶ࡊᬌ⚝. ߥ㧚. ߩḩߚߔߴ߈ⷐઙࠍዉߊߎߣߢࠆ㧚. ࠗࡦ࠲ࡀ࠶࠻ߪࡂࠗࡄࡦࠢߦࠃࠆࠣࡈ᭴. ߹ߕ㧘↪⠪߇ߤߩࠃ߁ߥᗧ࿑ࠍᜬߞߡ࠺ࠬࠢ࠻࠶. ㅧࠍၮ⋚ߣߒߡࠆ㧚ᓥߞߡ㧘࠙ࠚࡉᢥᦠߪ㧘߶߷. ࡊᬌ⚝ࠍⴕߞߡࠆ߆ߦߟߡ㧘࠙ࠚࡉᬌ⚝ߣኻᲧߐ. ᄖߥߊࡂࠗࡄࡦࠢࠍߒߡࠆ㧚ߘߩߚ㧘ߘߩ. ߖߡ⺑ߔࠆ㧚. ౝኈࠍ⹏ଔߦ↪ߖߕ㧘ࠣࡈ᭴ㅧߛߌ߆ࠄ․ᓽ㊂ࠍ. ࠙ࠚࡉᬌ⚝ߦ߅ߌࠆ↪⠪ߩⷐ᳞ߪ㧘⽎⊛ߢࠆ㧚 ᬌ⚝ࠍⴕ߁ᤨߦ㧘․ቯߩ࠙ࠚࡉࡍࠫࠍ⚿ᨐߣߒߡ. ⸘ ▚ ߔ ࠆ ߎ ߣ ߇ น ⢻ ߢ ࠆ [9][10]㧚 ࠺ࠬࠢ࠻࠶ࡊߩࡈࠔࠗ࡞ߪ㧘৻⥸ߦ㧘ࡦࠢᖱႎ. ᦼᓙߒߡࠆߎߣߪዋߥ㧚ᦼᓙߒߡࠆߩߪ㧘․ቯ. ࠍᜬߟߎߣ߇ਇน⢻ߢࠆ㧚ࡈࠔࠗ࡞㑆ߩ㑐ㅪߪ㧘ࡈ. ߩᖱႎߢࠆ㧚ߘߩߚ㧘᰼ߒߡࠆᖱႎ߇ሽߔࠆ. ࠔࠗ࡞ߘߩ߽ߩߢߪߥߊ㧘ࡈࠔࠗ࡞ࠪࠬ࠹ࡓ߇. ߆ ߤ ߁ ߆ ߇ ↪ ⠪ ߩ ᦨ ᄢ ߩ 㑐 ᔃ ߦ ߥ ࠆ 㧚ߎ ߩ ะ ߪ 㧘. ߔࠆᧁ᭴ㅧߦࠃߞߡᥧ␜ߐࠇࠆߦ⇐߹ࠆ㧚ߚߛߒ㧘ࠪ. หߓᖱႎ߇⸥ㅀߐࠇߚᢥᦠ߇ⶄᢙሽߔࠆߎߣߦ㑐ㅪ. ࡚࠻ࠞ࠶࠻߿ࡂ࠼ࡦࠢ㧘ࠪࡦࡏ࠶ࠢࡦࠢߦ. ߒߡࠆߢࠈ߁㧚ߟ߹ࠅ㧘↪⠪ߦߣߞߡ㧘ᱜ⸃ᢥ. ࠃߞߡ㧘࠺ࠖࠢ࠻ߣࡈࠔࠗ࡞ࠍ㑐ㅪߐߖࠆߎߣߪ. ᦠߪหߓᖱႎࠍᜬߟઁߩᢥᦠߣઍᦧน⢻ߢࠆ㧚. น⢻ߢࠆ㧚ߒ߆ߒ㧘ߘࠇߢ߽Ꮌ࿁ะࠣࡈߢࠆ. ৻ᣇ㧘࠺ࠬࠢ࠻࠶ࡊᬌ⚝ߦ߅ߡߪߘ߁ߢߪߥ㧚. ࠗࡦ࠲ࡀ࠶࠻ߦᲧセߒߡ⢻ജ߇ૐ㧚߹ߚ㧘ห. ↪⠪ߪߤߎ߆ߦሽߒߚߣ⠨߃ߡࠆࠆ․ቯߩࡈ. ࡈࠜ࡞࠳ౝߩߤߩࡈࠔࠗ࡞ߣߤߩࡈࠔࠗ࡞߇㑐ㅪߒߡ. ࠔࠗ࡞ࠍ᳞ߡࠆߩߢ㧘ᱜ⸃ߪઍᦧਇน⢻ߢࠆ㧚. ࠆ߆ࠍߔࠆߎߣߪߢ߈ߥߣ߁㗴߽ᛴ߃ߡ. ߹ߚ㧘ᄙᢙߩੱ㑆߇↢ᚑߔࠆ࠙ࠚࡉߣߪ㆑㧘ੱ߇. ࠆ㧚․ߦห৻ࡈࠜ࡞࠳ౝߦᄙᢙߩࡈࠔࠗ࡞߇ሽߔ. ↪ߔࠆࠦࡦࡇࡘ࠲ߦ߅ߡ㧘หߓᖱႎ߇ⶄᢙߩ. ࠆ႐ว㧘ࡦࠢᖱႎࠍᜬߔࠆߎߣ߇ߢ߈ߥߚ㧘. ࡈࠔࠗ࡞ߦሽߒߡࠆߎߣߪዋߥߢࠈ߁㧚ߎߩ. ߘߩਛ߆ࠄዋᢙߩࡈࠔࠗ࡞ࠍ⊒ߔࠆߎߣߪ࿎㔍ߢ. ߎߣ߽㧘ᱜ⸃߇ઍᦧਇน⢻ߢࠆߣ߁ᕈ⾰ࠍᒝߡ. ࠆ㧚. ࠆ㧚 㧟▵ߢㅀߴߚࠃ߁ߦ㧘࠺ࠬࠢ࠻࠶ࡊߩᖱႎߪචಽ. 3.3. ᖱ ႎ 䈱ቢ ⚿ ᕈ ᧄ▵ߢ߁ቢ⚿ᕈߣߪ㧘ߩޘᖱႎ߇ߘࠇ⥄ߢቢ. ♽ൻߐࠇߡߥ㧚ߘߩߚ㧘⋡⊛ߩᖱႎ߇৻ߟࡈ. ⚿ߒߡࠆ߆ߤ߁߆㧘⸒឵߃ࠇ߫㧘ઁߦᖱႎࠍᔅⷐ. ࠔࠗ࡞ߦ߹ࠇߡࠆߣߪ㒢ࠄߥ㧚߹ߚ㧘ࡦࠢᖱ. ߒߡࠆ߆ߤ߁߆㧘ߢࠆ㧚. ႎࠍᜬߚߥߚ㧘৻ߟߩࡈࠔࠗ࡞ࠍᚻដࠅߦઁߩࡈ. ᢥᦠ㓸วߦ߹ࠇࠆߩޘᖱႎߩቢ⚿ᕈߪ㜞㧚৻. ࠔࠗ࡞ࠍ⊒ߔࠆߎߣߪ࿎㔍ߢࠆ㧚ᓥߞߡ㧘࠺ࠬࠢ. ⥸ߩᢥᦠߪ㧘⺒⠪߇㧘ߘߩ⪺⠪߇ᗐቯߒߡࠆ⍮⼂ࠍ. ࠻࠶ࡊᬌ⚝ߦ߅ߌࠆ↪⠪ߩ⋡⊛ߪ㧘․ቯߩࡈࠔࠗ࡞. -3−143−.
(4) ߩ㓸วࠍ⊒ߔࠆߎߣߢࠆ㧚࠺ࠬࠢ࠻࠶ࡊߩᖱႎ. ߽⸒ߒߡࠆߚ㧘ߎࠇߦኻߔࠆ৻ߟ৻ߟߩታ㛎⚿. ߪဋ⾰ᕈ߇ૐߚ㧘⋡⊛ߩࡈࠔࠗ࡞㓸วߦ߹ࠇࠆ. ᨐߩജࡈࠔࠗ࡞ߩ㑐ㅪߩᒝߐߪૐਅߔࠆ㧚 ᧄ⎇ⓥߢߪ㧘ߎߩ㑐ㅪᐲࠍ㧘↪⠪ߩࠕࠢࠬጁᱧ. ࡈࠔࠗ࡞ߩߕࠇߦ߽หߓ⺆߇߹ࠇߡࠆߣߪ㒢ࠄ. ߆ࠄᓧࠄࠇࠆᖱႎߦၮߠߡ⸘▚ߔࠆ㧚ጁᱧᖱႎࠍ↪. ߥߎߣߦᵈᗧߐࠇߚ㧚. ࠆߎߣߢ㧘↪⠪ߩ↪⁁ᴫࠍᤋߒߚࡈࠔࠗ࡞㓸 วࡕ࠺࡞ࠍേ⊛ߦ↢ᚑߔࠆߎߣ߇น⢻ߦߥࠆ㧚. 5. ࡈ ࠔ ࠗ ࡞ 㓸 ว ࡕ ࠺ ࡞ ᧄ▵ߢߪ㧘࠺ࠬࠢ࠻࠶ࡊߩࡈࠔࠗ࡞㓸วࡕ࠺࡞ߦ. 6. 㑐 ㅪ ᐲ. ߟߡ⺑ߔࠆ㧚㧟▵ߢ⺑ߒߚࠃ߁ߦ㧘࠺ࠬࠢ࠻࠶. ᧄ▵ߢߪ㧘↪⠪ߩࡈࠔࠗ࡞↪ጁᱧ߆ࠄᓧࠄࠇࠆ. ࡊߩࡈࠔࠗ࡞ߪ㧘ቢ⚿ᕈ߇ૐߊ㧘߆ߟࡦࠢᖱႎࠍ. ᖱႎࠍ↪ߡ㧘㑐ㅪᐲࠍ▚ߔࠆߚߩౕ⊛ߥ㊀ߺ. ᜬߚߥߚ㧘ⶄᢙߩࡈࠔࠗ࡞ߦಽᢔߒߚᖱႎࠍౣ⊒. 㑐ᢙߦߟߡ⺑ߔࠆ㧚. ߔ ࠆ ߎ ߣ ߇ 㔍 ߒ 㧚ߘ ߎ ߢ 㧘ᚒ ߪ ޘ㧘ฦ ࡈ ࠔ ࠗ ࡞ ߪ 㧘. 6.1. 㗅 ᐨ 䊝䊂䊦. ␜⊛ߥࡦࠢᖱႎࠍᜬߚߥ߇㧘ᗧߦ߅ߡߪ㑐. 㗅ᐨࡕ࠺࡞ߢߪ㧘㑐ㅪߪ㧘ࠕࠢࠬߩ㗅ᐨߣᒝ⋧. ㅪࠍᜬߟࡈࠔࠗ࡞߇ሽߔࠆߣ⠨߃ߚ㧚࠺ࠬࠢ࠻࠶ࡊ. 㑐߇ࠆߣ⠨߃ࠆ㧚ࡈࠔࠗ࡞㧭ߦኻߔࠆࡈࠔࠗ࡞㧮ߩ. ߩ ࡈ ࠔ ࠗ ࡞ 㓸 ว ࠍ 㧘㑐 ㅪ ߒ ߚ ᖱ ႎ ߩ 㓸 ว ߣ ᝒ ߃ ࠆ ߣ 㧘. 㑐ㅪᐲࠍ㧘↪⠪߇ࡈࠔࠗ࡞㧭ߦࠕࠢࠬߒߚᤨ㧘ߘ. ࡈ ࠔ ࠗ ࡞ 㓸 ว ߪ 㧘㊀ ߺ ઃ ߈ ะ ࠣ ࡈ ߢ ߐ ࠇ ࠆ㧔 ࿑. ߩ⋥೨ࠆߪ⋥ᓟߦࡈࠔࠗ࡞㧮ߦࠕࠢࠬߒߚഀว. 㧝 㧕㧚ࡈ ࠔ ࠗ ࡞ 㓸 ว ࠍ ࡕ ࠺ ࡞ ൻ ߒ ߚ ࠣ ࡈ ߪ એ ਅ ߦ ߍ. ߢ ቯ ⟵ ߔ ࠆ 㧔 ᑼ 㧝 㧕㧚. ࠆᕈ⾰ࠍᜬߟ㧚 z. ฦ㗂ὐߪࡈࠔࠗ࡞ߣ৻ኻ৻ߦኻᔕߔࠆ㧚. z. ฦㄝߪ㊀ߺࠍᜬߟ㧚. C 0 ( A, B). ㄝ ߩ ሽ ߪ 㑐 ㅪ ߩ ሽ ࠍ ␜ ߔ 㧚ߘ ߩ ㊀ ߺ ߪ 㑐 ㅪ z. Aߩ೨ᓟߢߩBߩࠕࠢࠬᢙ 㧔㧝㧕 Aߩࠕࠢࠬᢙ u 2. 㗅ᐨࡕ࠺࡞ߦߪ㧘ฦࠕࠢࠬߦ߅ߡ㧘㑐ㅪࠍขᓧ. ߩᒝߐࠍߔࠆ㧚. ߢ߈ࠆߩߪ㧘ᦨᄢ㧟ࡈࠔࠗ࡞߹ߢߢࠆ㧚ߘߩߚ,. 㗂ὐ㨍߆ࠄ㗂ὐ㨎߳ߩㄝ㨑㧝߇ሽߔࠆߥࠄ߫㧘. 㧠ߟએߩࡈࠔࠗ࡞߇⋧㑐ㅪߒߡࠆ႐ว㧘ߘࠇࠍ. 㗂ὐ㨎߆ࠄ㗂ὐ㨍߳ߩㄝ㨑㧞߽ሽߔࠆ㧚. ⊒ߒߦߊߣ߁㗴߇ࠆ㧚. 㗂 ὐ 㨍 ߇ ࡈ ࠔ ࠗ ࡞ 㧭 ߦ 㧘㗂 ὐ 㨎 ߇ ࡈ ࠔ ࠗ ࡞ 㧮 ߦ. 6.2. ᤨ ೞ 䊝䊂䊦. ኻ ᔕ ߔ ࠆ 㧚 ߎ ߩ ߣ ߈ 㧘ࡈ ࠔ ࠗ ࡞ 㧭 ߇ ࡈ ࠔ ࠗ ࡞ 㧮. ᤨೞࡕ࠺࡞ߢߪ㧘㑐ㅪߪ㗅ᐨࠃࠅ߽ᤨೞߣᒝ⋧㑐. ߣ 㑐 ㅪ ࠍ ᜬ ߟ ߥ ࠄ ߫ 㧘ࡈ ࠔ ࠗ ࡞ 㧮 ߪ ࡈ ࠔ ࠗ ࡞ 㧭. ߇ࠆߣ⠨߃ࠆ㧚ࡈࠔࠗ࡞㧭ߣࡈࠔࠗ࡞㧮ߩࠕࠢࠬ. ߣ㑐ㅪࠍᜬߟ㧚. ᤨೞ߇ㄭߌࠇ߫ㄭ߶ߤ㑐ㅪ߇ㄭߣߥߔ㧚㧭߳ߩ ࠕࠢࠬᤨೞࠍ㧜㧘㧮߳ߩࠕࠢࠬᤨೞࠍ㨠ߣߒߚߣ. ✢䈱ᄥ䈘䈲㑐ㅪᐲ䈱ᒝ䈘䈮Ყ䈜䉎. ߈㧘㨠㧨㨠㧝ߦ߅ߡᦨᄢ୯㧝ࠍߣࠆ㧚એ㒠ߪ㧘ੑᰴ 㑐ᢙߢᷫዋߒ㧘㨠㧩㨠㧞ߦ߅ߡ㧜ߦ㆐ߔࠆߣ߁ቯ ᑼ ൻ ࠍ ᧄ ⎇ ⓥ ߢ ߪ ណ ↪ ߒ ߚ 㧔 ᑼ 㧞 㧕㧚. C t ( A, B). 1 ( 0 d t t1 ) ° 1 2 ® (t t 2 ) (t d t t ) 㧔 㧞 㧕 2 1 2 °¯ (t1 t 2 ). ᑼ㧞ߪ㧭߳ߩࠆ㧝ᐲࠕࠢࠬߦኻߔࠆ㑐ㅪᐲߩ ቯ⟵ߢࠆ㧚ࠆᦼ㑆㨀ߦ߅ߌࠆ㧭ߦኻߔࠆ㧮ߩ㑐ㅪ. ࿑ 1 ࡈࠔࠗ࡞㓸วߩᔨ࿑. ᐲ ࠍ 㧘 ᑼ 㧞 ߩ ᐔ ဋ ߢ ቯ ⟵ ߔ ࠆ 㧔 ᑼ 㧟 㧕㧚. ߹ߚ㧘ฦㄝߩ㊀ߺࠍቯߔࠆߚߩ㊀ߺ㑐ᢙ C ߪ㧘. ¦ C ( A, B) t. એਅߩᕈ⾰ࠍᜬߞߡߥߌࠇ߫ߥࠄߥ㧚 z. 㑐ㅪߩᒝߐߣᱜߩ⋧㑐ࠍᜬߟ㧚. z. ৻ ⥸ ߦ 㧘 C㧔 A㧘 B㧕 ҁ 㧯 㧔 B㧘 A㧕 ߢ ࠆ 㧚. CT ( A, B). T. Aߩࠕࠢࠬᢙ. 㧔㧟㧕. ᤨೞࡕ࠺࡞ߪ㧘߶߷หᤨߦᄙᢙߩࡈࠔࠗ࡞߇ࠕࠢ. ࡈ ࠔ ࠗ ࡞ 㧭 ߦ ኻ ߔ ࠆ ࡈ ࠔ ࠗ ࡞ 㧮 ߩ 㑐 ㅪ ᐲ ߣ 㧘ࡈ. ࠬߐࠇߚ႐ว㧘ߘࠇࠄߩࡈࠔࠗ࡞ߩ㑐ㅪᐲ߇ᄢ߈ߊߥ. ࠔࠗ࡞㧮ߦኻߔࠆࡈࠔࠗ࡞㧭ߩ㑐ㅪᐲߪ⇣ߥ. ࠆ㧚ߘߩߚ㧘ࡦࠢ߇ߘࠇࠄߩࡈࠔࠗ࡞ߦࠃߞ. ࠆ㧚. ߡභࠄࠇߡߒ߹㧘ߘߩઁߩᱜ⸃ࡈࠔࠗ࡞ߩࡦࠢ. ੑߟ⋡ߩᕈ⾰ߦߟߡ⺑ߔࠆ㧚߃߫㧘ታ㛎⚿ᨐ ߩജࡈࠔࠗ࡞ߦኻߔࠆ⹏ଔ߿⠨ኤࠍ⸥ㅀߒߚࡈࠔࠗ ࡞ߩ㑐ㅪߪᒝ߇㧘⹏ଔ߿⠨ኤߦߪઁߩታ㛎ߦߟߡ. ߇ᄢ߈ߊਅ߇ࠆߣ߁㗴ࠍᜬߞߡࠆ㧚. 6.3. 䉝䉪䉶䉴ኒ ᐲ. -4−144−. ࠕࠢࠬኒᐲ㨚ࠍ㧘ࠆࡈࠔࠗ࡞ߩࠕࠢࠬᤨೞ߆.
(5) ࠄ㧘ᤨೞ㨠એౝߦࠕࠢࠬߐࠇߚࡈࠔࠗ࡞ᢙߣߒߡቯ. ߆ ߞ ߚ ᤨ ߩ ᐔ ဋ ㅒ 㗅 ߣ ߒ ߚ 㧚ߚ ߛ ߒ ,ᱜ ⸃ ߇ ߟ ߆ ࠄ. ⟵ ߔ ࠆ 㧚ᚒ ߪ ޘ㧘ኒ ᐲ ߩ ᄢ ߈ ࠕ ࠢ ࠬ ߇ ߞ ߚ ႐ ว 㧘. ߥ႐วߩㅒ㗅ߪ㧜ߣߔࠆ㧚㨙ߪ↪⠪߇᳞ࠆᖱ. ߘࠇߙࠇߩࡈࠔࠗ࡞ߩ㑐ㅪᐲߪ㧘ኒᐲߩዊߐ႐วࠃ. ႎ߇ಽᢔߒߡࠆࡈࠔࠗ࡞ߩᦨᄢᢙࠍߒߡࠆ㧚. ࠅዊߐߊߥࠆߣ⠨߃ߚ㧚ኒᐲߩᔨࠍ㗅ᐨࡕ࠺࡞ߣᤨ. ᐔဋㅒ㗅ߩḩὐߪᑼ㧣ߦࠃߞߡਈ߃ࠄࠇࠆ㧚㨙ߦࠃ. ೞࡕ࠺࡞ߦㆡ↪ߒ㧘ߘࠇߙࠇߩࡕ࠺࡞߇ᜬߟ㗴ࠍ⸃. ߞ ߡ ḩ ὐ ߇ ⇣ ߥ ࠆ ߎ ߣ ߦ ᵈ ᗧ ߐ ࠇ ߚ 㧔 ᑼ 㧣 㧕㧚. ߔࠆߎߣࠍ⹜ߺߚ㧚. r ( m). 6.3.1. ኒ ᐲ ࡕ ࠺ ࡞ ኒᐲ߇ᄢ߈ࠕࠢࠬߦ߅ߡ㧘ฦࡈࠔࠗ࡞ߩ㑐ㅪ. 1 m 1 ¦ mi1i. 㧔㧣㧕. ᐲߪዊߐߣ⠨߃ߚ㧚ߘߎߢ㧘ฦࠕࠢࠬߦ߅ߌࠆ㊀. ฦജࡈࠔࠗ࡞߇ᱜ⸃߆ߤ߁߆ߩ್ቯߪ↪ߒߚࠕࠢ. ߺߩ߇╬ߒߊߥࠆߣߒ㧘ߘࠇࠍ㗅ᐨߦᔕߓߡ㈩ಽߔ. ࠬጁᱧࠍ↢ᚑߒߚ↪⠪߇ⴕߞߚ㧚್ቯၮḰߪෳᾖ. ࠆࡕ࠺࡞ࠍ⠨᩺ߒߚ㧚ߎߩࡕ࠺࡞ࠍ㗅ᐨኒᐲࡕ࠺࡞. ߩ ή ߢ ࠆ 㧚ߔ ߥ ࠊ ߜ , ജ ࡈ ࠔ ࠗ ࡞ ߇ 㧘 ജ ࡈ ࠔ ࠗ. ߣ߱㧚ࠆࡈࠔࠗ࡞㧭ߩࠕࠢࠬߦ߅ߡ㧘㑐ㅪᐲ. ࡞ߣෳᾖ㧘㕖ෳᾖߩ㑐ଥߦࠆߣ߈ᱜ⸃ߣߒߚ㧚. ߪ㧘ኒᐲ㨚ߣࡈࠔࠗ࡞㧮ߩ㗅㨞ߦࠃߞߡቯ⟵ߐࠇࠆ. 7.2. ታ 㛎 ⚿ ᨐ ࿑㧞㧘㧟㧘㧠㧘ߕࠇߦ߅ߡ߽㧘৻⥸ߦ㗅ࡕ࠺. 㧔 ᑼ 㧠 㧕㧚. C do ( A, B). ࡞߇ᦨ߽㜞ᐔဋㅒ㗅ࠍᜬߟ㧚ᤨೞࡕ࠺࡞߇ᦨ߽ૐ. n r 1. 㧔㧠㧕. N. ¦i. ᐔဋㅒ㗅ࠍᜬߜ㧘ኒᐲࠍ⠨ᘦߒߚੑߟߩࡕ࠺࡞ߪ ߶߷หߓᐔဋㅒ㗅ࠍᜬߟߎߣࠍ␜ߒߡࠆ㧚ߎ߁ߒ. i 1. ߚ ะ ߪ 㧘 ో ߩ ᐔ ဋ ߦ ߟ ߡ ߽ ࠇ ࠆ 㧔 㧝 㧕㧚. ᦼ 㑆 T ߦ ߅ ߌ ࠆ ࡈ ࠔ ࠗ ࡞ ߩ ో ࠕ ࠢ ࠬ ߦ ߟ ߡ 㧘㧯 㨐㨛. ࠍ⸘▚ߒ㧘ߘߩᐔဋࠍࡈࠔࠗ࡞㧭ߣ㧮ߩ㑐ㅪᐲߣ. ߔ ࠆ 㧔 ᑼ 㧡 㧕㧚. ㅒ㗅ᐨࠍᜬߟ㧚ߐࠄߦߒߊࡠࠣࠍ⺞ᩏߒߚߣߎࠈ㧘. ¦C C DO ( A, B). ⛯ ߡ 㧘ฦ 㨙 ߩ ୯ ߦ ߟ ߡ 㧘 ว ߖ ⚿ ᨐ ࠍ Ყ セ ߔ ࠆ 㧚 วߖ㧠㧘㧢ߦ߅ߡߪ㧘ߕࠇߩࡕ࠺࡞߽㜞ᐔဋ. do. ߎࠇࠄߩࡈࠔࠗ࡞ߪ㧘ࠕࠢࠬߐࠇߡࠆᤨᦼ߇㒢ࠄ. ( A, B). T. ࡈࠔࠗ࡞Aߩࠕࠢࠬᢙ. 㧔㧡㧕. ࠇߡ߅ࠅ㧘ߐࠄߦߘߩᤨᦼߪ㑐ㅪߩߥઁߩࡈࠔࠗ࡞ ߳ࠕࠢࠬ߇ዋߥ߆ߞߚ㧚ߟ߹ࠅ㧘ᧄࡕ࠺࡞ߦߣߞߡ. ߐ ࠄ ߦ 㧘 C㨠 ߣ 㧯 㨐 㨛 ߩ Ⓧ ߆ ࠄ 㧘 ᤨ ೞ ࠍ ട ߒ ߚ ᜰ ᮡ. ℂ ᗐ ⊛ ߥ ࠕ ࠢ ࠬ ጁ ᱧ ߇ ᱷ ߞ ߡ ߚ 㧚߹ ߚ 㧘 ว ߖ 㧝 㧘. ߇ᓧࠄࠇࠆ㧚ߎࠇߩᐔဋࠍขࠆߎߣߢ㧘ᤨೞ㧘㧘. 㧥ߦ߅ߡߪ㧘㨙ߩჇടߦߞߡ㧘㗅ᐨࡕ࠺࡞ߣઁߩ. ኒ ᐲ ࠍ ⠨ ᘦ ߒ ߚ 㑐 ㅪ ᐲ ࡕ ࠺ ࡞ ߇ ᓧ ࠄ ࠇ ࠆ 㧔 ᑼ 㧢 㧕㧚. ࡕ ࠺ ࡞ ߩ Ꮕ ߇ ዊ ߐ ߊ ߥ ߞ ߡ ࠆ 㧚 ߎ ߩ ․ ᓽ ߪ 㧘㗅 ᐨ ࡕ. ¦C C DOT ( A, B). do. ࠺࡞ߢߪ⊒ߢ߈ߥ߆ߞߚᱜ⸃ࠍ㧘ઁߩࡕ࠺࡞߇⊒. ( A, B ) u C t ( A, B ). T. ࡈࠔࠗ࡞Aߩࠕࠢࠬᢙ. ߒߚߎߣ߇ේ࿃ߢࠆ㧚ߚߛߒ㧘ߎࠇࠄߩᱜ⸃ߪ㧝㧜 㧔㧢㧕. એ㒠ߩૐࡦࠢߢ⊒ߐࠇߚ㧚 ታ㛎⚿ᨐ߆ࠄᓧࠄࠇߚ⍮ߦߟߡ߹ߣࠆ㧚ᱜ⸃. ߎࠇࠍⶄวࡕ࠺࡞ߣ߱㧚. ᢙ߇ዊߐ႐ว㧘㗅ᐨࡕ࠺࡞߇ఝࠇߚ⚿ᨐࠍߔ㧚ߒ ߆ߒ㧘ᱜ⸃ᢙ߇ᄙ႐วߪ㧘㗅ᐨࡕ࠺࡞ߢߘࠇࠄߩᱜ ⸃ࠍ⊒ߔࠆߎߣߪ࿎㔍ߢࠆ㧚ᤨೞࡕ࠺࡞ࠍ↪ࠇ. 7. ታ 㛎 㧢▵ߢ⺑ߒߚ㑐ㅪᐲࡕ࠺࡞ߩߘࠇߙࠇߦߟߡ㧘. ߫ 㧘ᄙ ᢙ ߩ ᱜ ⸃ ࠍ ⊒ ߔ ࠆ ߎ ߣ ߇ ߢ ߈ ࠆ ߇ , ജ ߪ . 㑐 ㅪ ᐲ ታ 㛎 ࠍ ⴕ ߞ ߚ 㧚㧣 .㧝 ▵ ߢ ታ 㛎 ߩ ⇛ ߦ ߟ . ߦਇᱜ⸃ࠍᄙߊ㧚ኒᐲࠍ⠨ᘦߔࠆߎߣߢ㧘ㅒᢙ㗅. ߡ ⺑ ߒ 㧘 㧣 .㧞 ▵ ߢ ታ 㛎 ⚿ ᨐ ߦ ߟ ߡ ⠨ ኤ ߔ ࠆ 㧚. ࠍะߐߖࠆߎߣ߇ߢ߈ࠆ߇㧘㗅ᐨࡕ࠺࡞ࠍ߃ࠆ. 7.1. ታ 㛎 ⇛. ᕈ⢻ߪᓧࠄࠇߥ㧚. 1 ᐔ ဋ ㅒ 㗅 . ࠆࡈࠔࠗ࡞ࠍജߣߒߡਈ߃㧘ߘࠇߦኻߒ㧘ߘߩ ઁߩࡈࠔࠗ࡞ߩ㑐ㅪᐲࠍ⸘▚ߔࠆ㧚ജߪ㧘ߘࠇࠄߩ ࡈࠔࠗ࡞ߩ㑐ㅪᐲ㗅ߩࡦࠠࡦࠣߣߒߚ㧚 C 㨠 ࠍ ⸘ ▚ ߔ ࠆ ߚ ߦ ᔅ ⷐ ߥ ࡄ ࡔ ࠲ 㨠 㧝 ,㨠 㧞 ߪ ߘ. m=1 m=3 m=5. ࠇߙࠇ㧢㧜㧜⑽㧘㧟㧜㧜⑽ߣߒߚ㧚ߎࠇߪ੍ታ㛎ߩ. 㗅ᐨ ᤨೞ 㗅ኒ ⶄว 0.79 0.54 0.64 0.66 0.39(0.64) 0.26(0.43) 0.31(0.51) 0.31(0.51) 0.25(0.54) 0.17(0.37) 0.20(0.44) 0.20(0.45) 㧔 㧕 ౝ ߪ ḩ ὐ ࠍ 1.0 ߦ ᱜ ⷙ ൻ ߒ ߚ ୯. ᐔဋㅒ㗅ᐨߩⷰὐ߆ࠄᲧセߔࠆ㒢ࠅ㧘㗅ᐨࡕ࠺࡞߇. ⚿ᨐߦၮߠ߈ቯߒߚ୯ߢࠆ㧚 㑐ㅪᐲࠍ⸘▚ߔࠆߚߩᖱႎߣߒߡ㧘㧞㧜㧜㧡ᐕ㧝. ᦨ߽ఝࠇߡࠆ㧚ߒ߆ߒ㧘㨙㧩㧡ߦ߅ߌࠆᱜ⸃ᢙߩᐔ. 㧝߆ࠄ㧞㧜㧜㧢ᐕ 4 ߦ߆ߌߡ⫾Ⓧߒߚࠕࠢࠬጁ. ဋߢᲧセߔࠆߣ㧘㗅ᐨࡕ࠺࡞ߪઁߩࡕ࠺࡞ߦഠࠆ㧔. ᱧࠍ↪ߚ㧚ࠕࠢࠬᢙߪ㧝㧜㧤㧝㧝ઙߢࠆ㧚. 㧞 㧕㧚ߎ ߎ ߢ 㧘ࡄ ࡔ ࠲ 㨠 㧞 ߇ ห ߓ ߥ ࠄ ߫ 㧘ઁ ߩ ਃ ߟ. ⹏ଔᜰᮡߪ㧘㨙㧔㧩㧝㧘㧟㧘㧡㧕⋡ߩᱜ⸃߇ߟ. ߩࡕ࠺࡞ߪ㧘ߕࠇ߽หߓᱜ⸃ᢙࠍᜬߟߩߢߐࠇ. −145− -5-.
(6) ߥ ߎ ߣ ߦ ᵈ ᗧ ߐ ࠇ ߚ 㧚ߎ ߩ ታ 㛎 ⚿ ᨐ ߪ 㧘㧢 .㧝 ▵ ߢ. ㅪᐲߩߺࠍ⹏ଔߒߡ߅ࠅ㧘ജࡈࠔࠗ࡞ߦኻߔࠆജ. ㅀߴߚ㧘㗅ᐨࡕ࠺࡞ߪ㧠ࡈࠔࠗ࡞એߩ㑐ㅪࠍ⊒ߒ. ࡈࠔࠗ࡞ߩ㑐ㅪᐲ㧔ㅒ㑐ㅪᐲ㧕ࠍ⹏ଔߒߡߥ㧚ߘ. ߦ ߊ ߣ ߁ ᕈ ⾰ ߣ ⍦ ⋫ ߒ ߥ 㧚ߎ ߩ ะ ߦ 㑐 ࠊ ࠄ ߕ 㧘. ߩ ߚ ,㗫 ❥ ߦ ࠕ ࠢ ࠬ ߐ ࠇ ࠆ ᳢ ↪ ⊛ ߥ ࡈ ࠔ ࠗ ࡞ ߇ 㧘. ᤨೞࡕ࠺࡞ߣኒᐲࠍ⠨ᘦߒߚࡕ࠺࡞ߩᐔဋㅒ㗅ᐨ߇㧘. ജ⚿ᨐߦࠇߡࠆน⢻ᕈ߇ࠆ㧚ߎ߁ߒߚࡈࠔࠗ࡞. 㗅ᐨࡕ࠺࡞ࠃࠅዊߐේ࿃ߪੑߟࠆ㧚৻ߟߪ㧘. ߪࠕࠢࠬ࿁ᢙ߇ᄙߚߦߔࠆ߇㧘․ቯߩ. ߦਇᱜ⸃ࡈࠔࠗ࡞߇ജߐࠇߡࠆὐߢࠆ㧚߽߁৻. ࡈࠔࠗ࡞ߣᒝ㑐ㅪࠍᜬߟࠊߌߢߪߥ㧚ㅒ㑐ㅪᐲࠍ. ߟߪ㧘㧟ߟ⋡એ㒠ߩᱜ⸃߇㧝㧜એ㒠ߣૐ㗅ߦ. ⹏ଔߔࠆߎߣߢ㧘ߎ߁ߒߚࡈࠔࠗ࡞ࠍࡈࠔ࡞࠲ࡦࠣ. ߒߡࠆὐߢࠆ㧚. ߒߚߣ⠨߃ࠆ㧚. 㧞 㨙㧩㧡ߦ߅ߌࠆᱜ⸃ᢙߩᐔဋ ᱜ⸃ᢙߩᐔဋ 2.4 3.1. ᐔဋㅒ㗅. 㗅ᐨࡕ࠺࡞ ߘߩઁߩࡕ࠺࡞. 㔌ࠇߡ␜ߐࠇߡࠆ႐ว߇ࠆ㧚ߘࠇࠄߩࡈࠔࠗ࡞ ߛߌࠍߡචಽߥᖱႎࠍᓧࠄࠇߥ߆߽ߒࠇߥ㧚. 㗅ᐨ䊝䊂䊦 ᤨೞ䊝䊂䊦 㗅ᐨ䊶ኒᐲ䊝䊂䊦 ⶄว䊝䊂䊦. ജ⚿ᨐࠍࠢࠬ࠲ࡦࠣߔࠆߎߣߢ㧘↪⠪ߪಽᢔ ߒߚᖱႎࠍኈᤃߦ㓸⚂ߔࠆߎߣ߇น⢻ߦߥࠆ㧚. 9. ߹ ߣ ᧄ⎇ⓥߢߪ㧘࠺ࠬࠢ࠻࠶ࡊߩࡈࠔࠗ࡞㓸วࡕ࠺࡞ 㪉. 㪊. 㪋. 㪌 㪍 㪎 ว䈞. 㪏. ࠍឭ᩺ߒߚ㧚ߘߩࡕ࠺࡞ߦ߅ߡ㧘ฦࡈࠔࠗ࡞ߪઁߩ. 㪐 㪈㪇. ࡈࠔࠗ࡞ߣߩ㑐ㅪࠍᜬߟ㧚ߘߩ㑐ㅪߩᒝߐࠍ㧘↪⠪. ࿑ 2 m=1 ߦ ߅ ߌ ࠆ ᐔ ဋ ㅒ 㗅 . ᐔဋㅒ㗅. ࠠࡦࠣߒߡࠆߚ㧘ߦ㑐ㅪߩࠆࡈࠔࠗ࡞߇㧘 ߦ↪⠪߇᳞ࠆᖱႎ߇ಽᢔߒߡࠆ႐ว㧘↪⠪ߪ. 㪈 㪇㪅㪐 㪇㪅㪏 㪇㪅㪎 㪇㪅㪍 㪇㪅㪌 㪇㪅㪋 㪇㪅㪊 㪇㪅㪉 㪇㪅㪈 㪇 㪈. ߩ ࡈ ࠔ ࠗ ࡞ࠕ ࠢ ࠬ ጁ ᱧ ߆ ࠄ ᓧ ࠄ ࠇ ࠆ ᖱ ႎ ࠍ ↪ ߡ 㧘 ⸘ ▚ ߔ ࠆ ߚ ߩ 㧠 ߟ ߩ ࡕ ࠺ ࡞ ࠍ ␜ ߒ ߚ 㧚ߘ ߒ ߡ ,ߘ ࠇ ࠄ. 㪇㪅㪎. ߩᚻᴺࠍ↪ߚ㑐ㅪᐲታ㛎ࠍⴕ㧘ឭ᩺ߒߚߘࠇ. 㪇㪅㪍. ߙࠇߩࡕ࠺࡞߇㧘ߤߩ⒟ᐲታ㓙ߩࡈࠔࠗ࡞㓸วߦㆡว. 㪇㪅㪌 㗅ᐨ䊝䊂䊦 ᤨೞ䊝䊂䊦 㗅ᐨ䊶ኒᐲ䊝䊂䊦 ⶄว䊝䊂䊦. 㪇㪅㪋 㪇㪅㪊 㪇㪅㪉 㪇㪅㪈 㪇 㪈. 㪉. 㪊. 㪋. 㪌 㪍 㪎 ว䈞. 㪏. 㪐 㪈㪇. ࿑ 3 m=3 ߦ ߅ ߌ ࠆ ᐔ ဋ ㅒ 㗅 . ᐔဋㅒ㗅. ᰴߦ㧘ജࡈࠔࠗ࡞ߤ߁ߒߩ㑐ㅪᐲࠍ᳞ࠆߎߣߢ㧘 ⚿ᨐࠍࠢࠬ࠲ࡦࠣߒߚ㧚ߪࠬࠦࠕ㗅ߦࡦ. 㪇㪅㪌 㪇㪅㪋㪌 㪇㪅㪋 㪇㪅㪊㪌 㪇㪅㪊 㪇㪅㪉㪌 㪇㪅㪉 㪇㪅㪈㪌 㪇㪅㪈 㪇㪅㪇㪌 㪇. 㗅ᐨ䊝䊂䊦 ᤨೞ䊝䊂䊦 㗅ᐨ䊶ኒᐲ䊝䊂䊦 ⶄว䊝䊂䊦. 㪈. 㪉. 㪊. 㪋. 㪌 㪍 㪎 ว䈞. 㪏. 㪐 㪈㪇. ࿑ 4 m=5 ߦ ߅ ߌ ࠆ ᐔ ဋ ㅒ 㗅 8. ᓟ ߩ ⺖ 㗴 ታ㛎ߢߪ㧘ജࡈࠔࠗ࡞ߦኻߔࠆജࡈࠔࠗ࡞ߩ㑐. ߔࠆ߆ߦߟߡᬌ⸛ߒߚ㧚. ᢥ. ₂. [1] ㈬ ື 㧘 “ ࠃ ࠅ ࠃ ᬌ ⚝ ࠪ ࠬ ࠹ ࡓ ታ ߩ ߚ ߦ 㧘̍ IPSJ Magazine, vol.47, no.2, pp.147-158, Feb.2006. [2] Google Desktop Search, http://desktop.google.com/ [3] Windows Desktop Search, http://www.microsoft.com/windows/desktopsearch/ [4] Spotlight, http://www.apple.com/macosx/features/spotlight/ [5] Office OneNote, http://office.microsoft.com/onenote/ [6] Google Notebook, http://www.google.com/notebook/ [7] Paul-Alexandru Chirita, Rita Gavriloaie, Stefania Ghita, Wolfgang Nejdl, and Raluca Paiu, "Activity Based Metadata for Semantic Desktop Search," Proc. European Semantic Web Conference, pp. 439-454, Crete, Greece, Spring 2005. [8] Google Personalized Search, http://www.google.com/psearch [9] Larry Page, Sergey Brin, R. Motwani, T. Winograd,̍ The PageRank Citation Ranking: Bringing Order to the Web㧘̍ Technical Report, Stanford Universoty, January, 1998. [10] Jon M. Kleinberg,"Authoritative Sources in a Hyperlinked Environment 㧘 " JACM, vol.46, no.5, pp.604-632, September 1999.. −146− - 6 -E.
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