ࢻࢥࣔ㸦ࢥ࣑ࣗࢽࢣ࣮ࢩࣙࣥᵓ㐀ゎᯒ㸧ඹྠ◊✲㒊㛛&RPPXQLFDWLRQ1HWZRUN$QDO\VLV
177'2&202&ROODERUDWLYH5HVHDUFK'LYLVLRQ࡟㈉⊩ࡍࡿᢏ⾡࡜ࡋ࡚῝ᇼࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋ࡚࠸㸯 㒊㛛ࢫࢱࢵࣇࡿࠋᮏᖺᗘࡣࠊ᝟ሗᩍ⫱ࢩࢫࢸ࣒࠿ࡽྲྀᚓࡉࢀࡿࣟ≉௵ㅮᖌ ᑿᓮ ▱ఙ␎Ṕ㸸1996 ᖺ 3 ᭶៞᠕⩏ሿ኱Ꮫ⥲ྜᨻ⟇Ꮫ㒊༞ᴗࠋࢢ࣭ࢹ࣮ࢱࡢ୍ࡘ࡛࠶ࡿ Web 㜀ぴᒚṔ㸦Proxy log㸧1998 ᖺ 3 ᭶ྠ኱Ꮫ኱Ꮫ㝔ᨻ⟇࣭࣓ࢹ࢕࢔◊✲⛉๓ࡢ཰ᣠ࣭⵳✚ࡀ㐍ࢇ࡛ࡁ࡚࠾ࡾࠊࡇࢀࢆ୺せ࡞◊✲ᮇಟኈㄢ⛬ಟ஢ࠋ2001 ᖺ 3 ᭶ྠ◊✲⛉༤ኈㄢ⛬༢ᑐ㇟࡜ࡋ᳨࡚ウ࣭ゎᯒࢆ㐍ࡵࡓࠋࡲࡓࠊࡑࡢ௚ࡢᐇ఩ྲྀᚓ㏥Ꮫࠋ៞᠕⩏ሿ኱Ꮫㅮᖌࠊ⚄ᡞ኱Ꮫຓᡭ࣭㦂ࢹ࣮ࢱ࡜ࡋ࡚ࠊ≉〇 PC ࢶ࣮ࣝࣂ࣮ࡢᑟධ࣭㐠⏝ຓᩍࢆ⤒࡚ࠊ2010 ᖺ 4 ᭶ࡼࡾ኱㜰኱Ꮫࢧ࢖ࣂ࣮࣓ࢆ㐍ࡵࠊࢶ࣮ࣝࣂ࣮ࡼࡾྲྀᚓࡉࢀࡿࣟࢢ㸦ࢡࣜࢵࢡࢹ࢕࢔ࢭࣥࢱ࣮≉௵ㅮᖌࠋ༤ኈ(ᨻ⟇࣭࣓ࢹ࢕࢔)ࠋ

ࣟࢢ㸧ࡢ཰㞟࣭⵳✚࠾ࡼࡧࡇࢀࢆ฼⏝ࡋࡓศᯒ᳨ウேᕤ▱⬟Ꮫ఍఍ဨࠋࢆ㐍ࡵࡓࠋࡉࡽ࡟ࡣࠊᏛ⏕࡟ࢫ࣐࣮ࢺࣇ࢛ࣥࢆ㈚୚ࡋࠊ฼⏝ࣟࢢࢆ཰㞟ࡍࡿᐇ㦂ࢆᐇ᪋ࡋ⤖ᯝࡢศᯒࢆヨࡳࡓࠋྠ᫬࡟཭ே㛵ಀࡸࢥ࣑ࣗࢽࢣ࣮ࢩࣙࣥ≧ἣ≉௵ຓᩍ బ㔝 ኟᶞ␎Ṕ㸸2006 ᖺ 3 ᭶⟃Ἴ኱Ꮫ኱Ꮫ㝔ࢩࢫࢸ࣒᝟ሗᕤ࡟ࡘ࠸࡚ࡢᏛ⏕࢔ࣥࢣ࣮ࢺㄪᰝࢆ⾜࠸⤖ᯝࡢศᯒࢆᏛ◊✲⛉♫఍ࢩࢫࢸ࣒ᕤᏛᑓᨷಟ஢ࠋ㟁ຊ୰ኸ◊ヨࡳࡓࠋ✲ᡤ≉ูዎ⣙◊✲ဨࠊ⤫ィᩘ⌮◊✲ᡤ≉௵◊✲ဨࢆ⤒࡚ࠊ2010 ᖺ 4 ᭶ࡼࡾ኱㜰኱Ꮫࢧ࢖ࣂ࣮࣓ࢹ࢕  ᖺᗘ◊✲ᴗ⦼࢔ࢭࣥࢱ࣮≉௵ຓᩍࠋ༤ኈ㸦ᕤᏛ㸧ࠋ᪥ᮏ࢜࣌ࣞ

 :HE 㜀ぴ⾜ື࡟ࡼࡿ࣮ࣘࢨ⯆࿡ࢺࣆࢵࢡࢫ᥎ᐃࡢ᳨ウ࣮ࢩࣙࣥࢬࣜࢧ࣮ࢳᏛ఍ࠊ᪥ᮏရ㉁⟶⌮Ꮫ఍ࠊᛂ⏝⤫ィᏛ఍ྛ఍ဨࠋ኱㜰኱Ꮫ࣭᝟ሗᩍ⫱ࢩࢫࢸ࣒࡟࡚ከᩘࡢᏛ⏕ࡀ᭱ࡶ㢖⦾࡟฼⏝ࡋ࡚࠸ࡿ⏝㏵ࡢ୍ࡘ࡟࢖ࣥࢱ࣮ࢿࢵࢺ≉௵◊✲ဨ ᶫᮏ ⱥᶞ࠿ࡽࡢ᝟ሗ཰㞟㸦Web 㜀ぴ㸧ࡀ࠶ࡿࠋࡲࡓ୍⯡♫఍ᣍ࡬࠸ᩍဨ࡬ࡢᒎ㛤ࢆ⪃࠼࡚ࡶࠊWeb 㜀ぴࡣᗈࡃ୍⯡ⓗ࡟⾜ࢃ ᣍ࡬࠸ᩍᤵ ᰤ⸨ ⛱ 㸦NTT ࢻࢥࣔ㸧ࢀ࡚࠾ࡾࠊࡇࡢ Web 㜀ぴࡢᒚṔ࠿ࡽ᭷⏝࡞⤖ᯝࢆᘬ ᣍ࡬࠸෸ᩍᤵ ྜྷᮧ ೺㸦NTT ࢻࢥࣔ㸧ࡁฟࡍࡇ࡜ࡢ౯್ࡣ኱ࡁ࠸ࠋ࣮ࣘࢨ࡟ࡣႴዲࡸ⯆࿡ࡢಶேᕪࡀ࠶ࡿࡓࡵࠊWebࢧ࢖ࢺࡢ㜀ぴ⾜ື࡟ࡶࡑࢀࡀ཯ᫎࡉࢀࡿࠋ࣑ࢡࣟ࡟ ◊✲ᴫせぢࡿ࡜ࠊ࣮ࣘࢨࡢ⯆࿡ࡣ༢୍࡛ࡣ࡞ࡃࠊ᫬ࠎ้ࠎ࡜ᮏ◊✲㒊㛛࡛ࡣࠊ኱Ꮫࡢ᝟ሗᩍ⫱ࢩࢫࢸ࣒฼⏝⪅⯆࿡ᑐ㇟ࡣኚ໬ࡋ᪥ࠎ␗࡞ࡿ࣮࣌ࢪࢆ㜀ぴࡍࡿࠋࡋࢆࢥ࣑ࣗࢽࢸ࢕ᵓᡂဨ࡜ぢ❧࡚ࠊࢥ࣑ࣗࢽࢸ࢕ෆࡢ

࠿ࡋ࡞ࡀࡽࠊ㐺ษ࡞ᮇ㛫ࡢ㜀ぴ⾜ື඲య࡜ࡋ࡚ࡣࡑ

ࢥ࣑ࣗࢽࢣ࣮ࢩࣙࣥᵓ㐀㸦㞟ྜ▱ࡢ⤌ᡂࠊ᝟ሗඹ᭷ࡢ࣮ࣘࢨࡢ⯆࿡ศᕸࡀ཯ᫎࡉࢀࡿ࡜⪃࠼ࡽࢀࡿࠋ㐣⛬㸧ࡢゎᯒࢆ⾜࡞ࡗ࡚࠸ࡿࠋࡇࢀ࡟ࡼࡾࠊࡇࢀࡲ

࣮ࣘࢨࡀ㜀ぴࡋࡓ Web ࣮࣌ࢪࡢෆᐜࢪࣕࣥࣝࢆࠊ࡛ࡢಶேࡀ⊂❧࡟᝟ሗ࡟࢔ࢡࢭࢫࡍࡿ᝟ሗ㏻ಙᇶ┙Web ࢧ࢖ࢺ࣭ࢹ࢕ࣞࢡࢺࣜ᝟ሗ㸦Yahoo!®࢝ࢸࢦࣜ㸧ࢆࢥ࣑ࣗࢽࢸ࢕ᵓᡂဨࡢ㞟ྜ▱ࢆά⏝ࡍࡿ᝟ሗ௰௓

ࢆᕤኵࡋ࡚㏫ᘬࡁࡍࡿࡇ࡜࡟ࡼࡾᴫࡡุᐃ࡛ࡁࡿࡇ

⪅㸦facilitator)ᇶ┙࡬࡜㐍໬ࡉࡏࡿ࡜ඹ࡟ࠊᗈࡃ♫఍࡜ࢆ☜ㄆࡋࡓࠋࡉࡽ࡟ࠊ࣮ࣘࢨࡀ㜀ぴࡋࡓ Web ࣮࣌㸫㸫ࢪࡢෆᐜࢪࣕࣥࣝࡢࢹ࣮ࢱ࣭ࢭࢵࢺࢆ࣮ࣘࢨẖ࡟㞟ࡵࠊᩥ᭩ゎᯒࡢศ㔝࡛◊✲ࡉࢀ࡚ࡁࡓ₯ᅾព࿡ゎᯒ㸦₯ᅾࢺࣆࢵࢡ᥎ᐃ㸧ࢆ⾜࠺ᶵᲔᏛ⩦ᡭἲ㸦LDA㸧ࢆ㐺⏝ࡍࡿࡇ࡜࡟ࡼࡾࠊ᝟ሗᩍ⫱࢖ࣥࣇࣛࢆ฼⏝ࡋ࡚࠸ࡿᏛ⏕ࡢሙྜࠊࡑࡢ㜀ぴ⾜ືࡣ 24 ⛬ᗘࡢ₯ᅾ⯆࿡ࢺࣆࢵࢡࢫ࡟ศ㢮࡛ࡁࡿࡇ࡜ࡀ♧၀ࡉࢀࡓࠋࡲࡓᚓࡽࢀࡓ 24 ࡢ₯ᅾࢺࣆࢵࢡࢫ࡟ࡘ࠸࡚ࡣࠊᴫࡡጇᙜ࡞ព࿡ゎ㔘ࡀྍ⬟࡛࠶ࡗࡓࠋࡇࢀ࡟ࡼࡾࠊᅗ㸯࡟♧ࡍᡭἲ࡟ࡼࡗ࡚ࠊ࣮ࣘࢨಶேಶேࡢ⯆࿡ࢺࣆࢵࢡࢫࡢศᕸࢆ᥎ᐃࡍࡿࡇ࡜ࡀྍ⬟࡜࡞ࡿࠋୖグᡭἲ࡟ࡼࡾྛ࣮ࣘࢨẖࡢ⯆࿡ࢺࣆࢵࢡࢫࡢ๭

ᅗ 2 ࣮ࣘࢨࣉࣟࣇ࢓࢖ࣝࡢྍど໬⤖ᯝ౛ྜࢆ▱ࡿࡇ࡜ࡀ࡛ࡁࡿࡀࠊどぬⓗ࡟ࢃ࠿ࡾࡸࡍࡃ♧ࡍࡇ࡜ࡀᐜ࡛᫆ࡣ࡞࠸ࠋࡇࡢࡓࡵどぬ໬㸦ࣅࢪࣗ࢔ ࢥ࣑ࣗࢽࢸ࢕ᵓ㐀᥎ᐃࡢ᳨ウࣛ࢖ࢮ࣮ࢩࣙࣥ㸧ᡭἲ࡟ࡘ࠸࡚ࡶ᳨ウࡋࠊᵝࠎ࡞⯆ࢿࢵࢺୖࡢ࢔ࢡࢸ࢕ࣅࢸ࢕ࡢᒚṔ࡛࠶ࡿ Proxy ࣟ࿡ࡢ࠶ࡿ㍈㸦౛࠼ࡤࠊ⌮⣔㸭ᩥ⣔ࠊᏛᖺࠊ➼㸧ࢆタࢢࢆヲ⣽࡟ศᯒࡍࡿࡇ࡜࡛ࠊே࡜ே࡜ࡢ㛵ಀ࣭ࢥ࣑ᐃࡋࠊྛ࣮ࣘࢨࢆࣉࣟࢵࢺ⾲⌧ࡍࡿࡇ࡜ࢆྍ⬟࡜ࡋࣗࢽࢸ࢕ᵓ㐀࠾ࡼࡧ᝟ሗࡢఏᦙᵓ㐀ࢆᢳฟ࣭᥎ᐃࡍࡓࠋ⤖ᯝࡢ୍౛ࢆᅗ㸰࡟♧ࡍࠋࡿࡇ࡜ࢆヨࡳࡓࠋProxy ࣟࢢ࡟ࡣ㏻ヰᒚṔࡢࡼ࠺࡞ࡉࡽ࡟ࡣࠊᛂ⏝࡜ࡋ࡚᥎ᐃࡉࢀࡓ࣮ࣘࢨẖࡢࢺࣆ┤᥋ⓗ࡞࢖ࣥࢱࣛࢡࢩࣙࣥࡢグ㘓ࡣྵࡲࢀ࡞࠸ࡀࠊ

ࢵࢡࢫࢆ฼⏝ࡋࠊ㹕㹣㹠࣮࣌ࢪࢆ࣮ࣘࢨ࡟ࣞࢥ࣓ࣥ

ே࡜ே࡜ࡢ㛵ಀࡣẚ㍑ⓗ࡟᫬㛫࡟ᑐࡋᏳᐃ࡛⥅⥆ࡍࢻࡍࡿࡇ࡜ࢆ᝿ᐃࡋ࡚ࠊ࡝ࢀࡔࡅ㐺ษ࡞ࣞࢥ࣓ࣥࢻࡿࡇ࡜ࠊࢡࢳࢥ࣑➼࡟ࡼࡾ≉ᐃࡢࢥࣥࢸࣥࢶ㜀ぴࡀࡀ࡛ࡁࡿ࠿ࢆホ౯ࡋ᭷ຠᛶࢆ☜ㄆࡋࡓࠋே࡜ே࡜ࡢ㛫ࢆఏᦙ࣭ᣑᩓࡍࡿ⌧㇟ࡀ᝿ᐃࡉࢀࡿࡇ࡜࠿ࡽࠊୖグࡢᢳฟ࣭᥎ᐃࡀྍ⬟࡛ࡣ࡞࠸࠿࡜⪃࠼㛵㐃Ⓨ⾲ㄽᩥ➼>@>@>@࡚࠸ࡿࠋࡇࢀࡲ࡛ࡢࣟࢢࢹ࣮ࢱࡢศᯒ࡟ࡼࡾࠊື⏬ࢧ࢖ࢺ
Youtube ࡞࡝ࡢࢥࣥࢸࣥࢶ࡟࠾࠸࡚ఏᦙ࣭ᣑᩓࡀ☜ㄆࡉࢀ࡚࠸ࡿࡀࠊᢕᥱ࡛ࡁࡿ஦౛௳ᩘࡣ࠶ࡲࡾከࡃほ࡛ࡁ࡚࠸࡞࠸ࠋࣟࢢ࡟ࡼࡾࠊ࣮ࣘࢨࡀ౑⏝ࡋࡓPC ࣮࣒ࣝࡢᗙᖍ᝟ሗࡀࢃ࠿ࡿࡓࡵࠊྠ୍᫬㛫࡟㏆ࡃࡢᖍࢆ฼⏝ࡋ࡚࠸ࡓ㢖ᗘ᝟ሗࡶά⏝ࡋࠊୖグࡢ᥎ᐃ࣭ᢳฟࡀ࡛ࡁ࡞࠸࠿ࠊ᳨ウࢆ⥅⥆ࡋ࡚࠸ࡿࠋ
ᅗ 3 ࡟ᗙᖍ᝟ሗࢆά⏝ࡋఏᦙ࡜⪃࠼ࡽࢀࡿ࢔ࢡࢭ

ᅗ 1 ₯ᅾࢺࣆࢵࢡࣔࢹࣝ࡟ࡼࡿ࣮ࣘࢨࣉࣟࣇ࢓

ࢫࣟࢢࢆᡭ᥃࠿ࡾ࡟ࢥ࣑ࣗࢽࢸ࢕ᢳฟࢆ⾜ࡗࡓ⤖ᯝ࢖ࣜࣥࢢ᪉ᘧࡢ౛ࢆ♧ࡍࠋࡲࡓࠊᅗ 4 ࡟ࣟࢢࢹ࣮ࢱ࠿ࡽᚓࡽࢀࡓ

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Youtube ࢥࣥࢸࣥࢶࡢᣑᩓ≧ἣ౛ࢆ♧ࡍࠋ㸫㸫 ᝟ሗᥦ♧࣭཯ᛂࣔࢹࣝࡢ᳨ウ᝟ሗᩍ⫱䝅䝇䝔䝮䛸䛧䛶ᒎ㛤䛥䜜Ꮫ⏕➼䛜ᤵᴗ䛚䜘䜃䛭䛾௚䛾┠ⓗ䛷౑⏝䛧䛶䛔䜛ከᩘ䛾 PC 䛾 Web 䝤䝷䜴䝄䝋䝣䝖䛻ᑐ䛧䛶䚸ᐇ㦂⏝䛾≉〇䝒䞊䝹䝞䞊䠄ᅗ 5䠅䜢タᐃ䞉ᑟධ䛧䛯䚹䛣䛾≉〇䝒䞊䝹䝞䞊䛻䜘䜚䚸䝃䞊䝞䛛䜙௵ព䛾䝁䞁䝔䞁䝒䜢䝥䝑䝅䝳䛧ྛ PC ୖ䛻⾲♧䛩䜛䛣䛸䜢ྍ⬟䛸䛩䜛䛸䛸䜒䛻䚸䝒䞊䝹䝞䞊㛵㐃᧯స䠄䝬䜴䝇䜽䝸䝑䜽➼䠅䛾䝻䜾䜢ྲྀᚓ䛧䝃䞊䝞䛻⵳✚䛩䜛䚹䛣䜜䛻䜘䜚䚸⾲♧䛥䜜䛯䝁䞁䝔䞁䝒䛻ᑐ䛧䛶䛭䜜䜢ぢ䛯Ꮫ⏕䛜཯ᛂ䜢

ᅗ 3 㔜ࡳ௜ࡁ㒊ศࢢࣛࣇ࣐࢖ࢽࣥࢢ࡟ࡼࡿࢥ࣑䛧䛯䛛䜒䛧䛟䛿䛧䛺䛛䛳䛯䛛䜢䛒䜛⛬ᗘほࣗࢽࢸ࢕Ⓨぢࡢ⤖ᯝ౛䛝䜛䛾䛷䚸཯ᛂ䝰䝕䝹䛾◊✲䚸䝺䝁䝯䞁䝕䞊䝅䝵䞁䛾◊䛩䜛䛣䛸䛜䛷✲➼䜢㐙⾜䛩䜛䛣䛸䛜䛷䛝䜛䚹UUᩘ

ᅗ 5 PC ࢶ࣮ࣝࣂ࣮ᴫせ᫬㛫(᪥)ᅗ 4 Youtube ࢥࣥࢸࣥࢶࡢᣑᩓ౛PC ࢶ࣮ࣝࣂ࣮ࡢ Ticker ⾲♧࠾ࡼࡧ⾲♧ࡢࢡࣜࢵࢡᒚṔ࠿ࡽࠊTicker ⾲♧࡟ᑐࡍࡿ཯ᛂ≧ἣࢆほ ࡍᤵᴗ᫬㛫እ䛻㞄䛾ᖍ䛻ᗙ䜛ேྠኈ䛷䛿䚸ඹ㏻䛧䛶㜀ࡿࡇ࡜ࡀ࡛ࡁࡿࠋࣔࣂ࢖ࣝ⎔ቃ࡛࠶ࡿሙྜࡸࠊࣜࢸ

ぴ䛩䜛 URL 䛾ᩘ䛜඲యᖹᆒ䜘䜚 3 ಸ௨ୖከ䛔䛣䛸䛜ほࣛࢩ࣮ࡢ㧗ࡃ࡞࠸࣮ࣘࢨࢆ᝿ᐃࡍࡿ࡜ࠊ࣮ࣘࢨࡀ⯆ᐹ䛥䜜䛯䚹䛣䜜䛾⌮⏤䛸䛧䛶䚸ᤵᴗ᫬㛫እ䛻㞄䛾ᖍ䛻ᗙ࿡ࢆᣢࡘ㸦Ҹࢡࣜࢵࢡࡍࡿ㸧᝟ሗࢆࡉࡾࡆ࡞ࡃ࣮ࣘ䜛Ꮫ⏕䝨䜰䛿཭ேྠኈ䛷䛒䜛ྍ⬟ᛶ䛜㧗䛟䚸୍᪉䛾Ꮫࢨ࡟࠶ࢃࡏ࡚ᥦ♧ࡍࡿࡇ࡜ࡣࠊ฼౽ᛶࡢ㠃࡛ࡶ฼⏝⏕䛜௚᪉䛾Ꮫ⏕䛻ᩍ䛘䜛䛺䛹䛸䛔䛳䛯䜲䞁䝍䝷䜽䝅䝵䞁䛾ಁ㐍ࡢ㠃࡛ࡶ㔜せ࣭᭷ຠ࡛࠶ࡿࠋࡇࡢࡼ࠺࡞᝟ሗᥦ⤖ᯝ䛛䜙ඹ㏻䛾 Web 䝨䞊䝆䜢ぢ䛶䛔䜛䠄influence䠅䛸䛔♧ࡣᗈ⩏ࡢࣞࢥ࣓ࣥࢻࡢ୍✀࡜⪃࠼ࡿࡇ࡜ࡶ࡛ࡁࡿࠋ䛖௬ㄝ䛜❧䛶䜙䜜䜛䛜䚸๓ᚋ䛾ᤵᴗ䛾㛵ಀ䛛䜙㞄䛻ᗙ䜛࣮ࣘࢨࡀ཯ᛂࡋࢡࣜࢵࢡࡍࡿ࠿࡝࠺࠿ࡣࠊ࣮ࣘࢨࡢᏛ⏕䛜ྠ䛨Ꮫ⛉䛻ᡤᒓ䛧䛶䛔䜛ሙྜ䛜ከ䛟ఝ䛯䜘䛖䛺⯆⯆࿡࣭Ⴔዲࡸ≉ᛶࠊTicker ⾲♧ࡢෆᐜࠊࡑࡢ௚ࡢせ࿡䜢ᣢ䛴䛣䛸䛛䜙䚸≉䛻཭ே㛵ಀ䛷䛺䛟ᩍ䛘䛒䛖䜘䛖䛺䛣ᅉ ࡟౫Ꮡࡍࡿ࡜⪃࠼ࡽࢀࡿࠋ㐺ษ࡞᝟ሗᥦ♧࣭ࣞ䛸䛿䛺䛟䛸䜒䛯䜎䛯䜎ྠ䛨 Web 䝨䞊䝆䜢㜀ぴ䛩䜛䛣䛸䛜ከࢥ࣓ࣥࢻࢆᐇ⌧ࡍࡿࡓࡵࡢ࣮ࣘࢨࣔࢹࣜࣥࢢ࠾ࡼࡧ䛟䛺䛳䛶䛔䜛䠄homophily䠅䛸䛔䛖௬ㄝ䜒❧䛶䜙䜜䜛䚹⌧ᐇࢱ࣮ࢤࢸ࢕ࣥࢢࡶࡋࡃࡣࣇ࢕ࣝࢱࣜࣥࢢᢏ⾡ࡢ᳨ウ䛻䛿䛣䜜䜙䛾 2 䛴䛾ΰྜ䛜ほᐹ䛥䜜䛶䛔䜛䛸⪃䛘䜙䜜䚸ࢆ㐍ࡵ࡚࠸ࡿࠋ₯ᅾ䜽䝷䝇ศᯒ(LCA)䜢㐺⏝䛧䚸Ticker 䛻ᑐ䛩䜛䝴䞊䛣䛾䝰䝕䝹໬䠋᥎ᐃ䛜䛷䛝䛺䛔䛛᳨ウ୰䛷䛒䜛䚹䝄཯ᛂ䛻㛵䛧䛶ఝ䛯䜘䛖䛺䝍䜲䝥䛾䝴䞊䝄䜾䝹䞊䝥䠄₯㛵㐃Ⓨ⾲ㄽᩥ➼>@ᅾ䜽䝷䝇䠅䛜Ꮡᅾ䛩䜛䛛䛹䛖䛛䜢ศᯒ䛩䜛䛸䛸䜒䛻䚸䛭䛾⤖ᯝ䜢䝺䝁䝯䞁䝗䛻ᛂ⏝䛧䚸䝴䞊䝄ẖ䛻ᥦ♧䛩䜛 Ticker䜢䜹䝇䝍䝬䜲䝈䛧䛯ሙྜ䛾ຠᯝ䛻䛴䛔䛶᳨ウ䛧䛯䚹䛭䛾㸫㸫⤖ᯝ䚸ྛ Ticker 䛾䜽䝸䝑䜽䛥䜜䛯ᅇᩘ䜢䜹䜴䞁䝖䛧䛣䛾ୖ఩䛾 Ticker 䛛䜙ᮍᥦ♧䛾䜒䛾 N ಶ䜢䝴䞊䝄䛻ᑐ䛧䛶䝺䝁䝯䞁䝗䛩䜛ᡤㅝ䝷䞁䜻䞁䜾᪉ᘧ䜢ᇶ‽䛸䛧䛶ẚ㍑䛧䛯ሙྜ䚸1.6 ಸ⛬ᗘ䛻ண⢭ᗘ䛜㧗䜎䜛䛣䛸䛜♧䛥䜜䛯䠄ᅗ

6䠅䚹ᚑ䛳䛶䚸⌮ㄽⓗ䛻䛿䝺䝁䝯䞁䝗䜢 Ticker ⾲♧䛻཯ᫎ䛥䛫䜛䛣䛸䛻䜘䜚 Ticker 䜽䝸䝑䜽⋡䠄CTR䠅䛾ቑ኱䛜ᮇᚅ䛷

ᅗ 7 ࢫ࣐࣮ࢺࣇ࢛ࣥ㈚୚ᡭ⥆ࡁ᫬ࡢᶍᵝ䛝䜛䚹 ࢔ࣥࢣ࣮ࢺㄪᰝProxy 䝻䜾䜔䚸䝒䞊䝹䝞䞊䚸䝇䝬䞊䝖䝣䜷䞁䛾䝻䜾䜢཰㞟䛧䛶䜒䚸ᐇ㝿䛻䛿ᑐ㠃䜢ྵ䜑ᵝ䚻䛺䝏䝱䝛䝹䞉䝯䝕䜱䜰䛜฼⏝ྍ⬟䛷䛒䜛䛯䜑䚸䝴䞊䝄䛾௚䛾ே䛸䛾䜲䞁䝍䝷䜽䝅䝵䞁඲య䜢ほ 䛩䜛䛣䛸䛿୙ྍ⬟䛷䛒䜛䚹㻌 ♫఍ᚰ⌮Ꮫⓗ䛺◊✲䛷䛿䚸ᑐே㛵ಀ➼䜢ᢕᥱ䛩䜛ሙྜ䜰䞁䜿䞊䝖䛻䜘䜚ㄪᰝ䜢⾜䛖䛣䛸䛜ከ⏝䛥䜜䛶䛔䜛䚹⥲ᣓⓗ䛺䝁䝭䝳䝙䜿䞊䝅䝵䞁䠋䝁䝭䝳䝙䝔䜱䛾≧ἣ䜢▱䜛䛣䛸䚸䝻䜾ゎᯒ䛛䜙ᚓ䜙䜜䛯⤖ᯝ䛾 verification 䛻⏝䛔䜛䛣䛸䜢ᛕ㢌䛻䜰䞁䜿䞊䝖ㄪᰝ䜢ᐇ᪋䛧䛯䚹ㄪᰝ䜈䛾ཧຍ䛿௵

ᅗ 6 ₯ᅾࢡࣛࢫศᯒࢆᛂ⏝ࡋࡓ Ticker ࣞࢥ࣓ࣥ

ព䛸䛧䚸㊃᪨➼䜢ㄝ᫂䛧䛯ୖ䛷༠ຊ⪅䛛䜙ᅇ⟅䜢཰㞟䛧ࢻ⢭ᗘྥୖ䛯䚹㻌 ศᯒ䛾୍౛䛸䛧䛶䚸ᅗ 8 䛻䜰䞁䜿䞊䝖⤖ᯝ䛛䜙ᚓ䜙䜜䛯 ࢫ࣐࣮ࢺࣇ࢛ࣥᏛ⏕㈚୚ᐇ㦂䝋䝅䜸䜾䝷䝮䠄䝋䞊䝅䝱䝹䞉䜾䝷䝣䠅䛾౛䜢♧䛩䚹ᚓ䜙䜜䛯ᦠᖏ㟁ヰ➃ᮎ䛾฼⏝≧ἣ䜢ヲ⣽䛻ศᯒ䛩䜛䛣䛸䛻䜘䜾䝷䝣ᵓ㐀䛛䜙䚸ከ䛟䛾ே䛻ᙳ㡪䜢ཬ䜌䛩䜲䞁䝣䝹䜶䞁䜚䚸䝁䝭䝳䝙䝔䜱ᵓ㐀䜢᫂䜙䛛䛻䛷䛝䜛䛾䛷䛿䛺䛔䛛䛸䛔䛖䝃䠉䜙䛧䛔䝴䞊䝄䜔䚸䜸䝸䝆䝘䝹Ⓨಙ※䜙䛧䛔䝴䞊䝄䚸௬ㄝ䛾䜒䛸䚸䛭䛾ᐇド䛚䜘䜃䛭䜜䛻ᚲせ䛺ゎᯒᢏ⾡䜢ከ䛟䛾ே䛛䜙᝟ሗ䜢཰㞟䛩䜛䝴䞊䝄➼䛜᥎ᐃ䛷䛝䜛䛜䚸☜❧䛩䜛䛯䜑䛻䚸ྛ✀➃ᮎ䝻䜾䜢ྲྀᚓ䞉グ㘓䛧䝃䞊䝞䜈䜰䞁䜿䞊䝖䛻䛚䛔䛶ᣦྡ䛥䛫䛯ᑐ㇟䛜䜽䝷䝇䝯䞊䝖䛻㝈䜰䝑䝥䝻䞊䝗䛩䜛≉〇䜰䝥䝸䜢௙㎸䜣䛰 Android ➃ᮎ䜢䚸ᐃ䛥䜜䛶䛔䜛䛯䜑䚸䜽䝷䝇䝯䞊䝖䛾㛫䛷䛾άື䛰䛡䛜ᢳ䝻䜾ྲྀᚓ䛻䛴䛔䛶ྜព䜢ᚓ䛯ୖ䛷Ꮫ⏕➼䜈୍ᐃ䛾ᮇฟ䛥䜜䛶䛚䜚䚸඲άື䜢⥙⨶䞉཯ᫎ䛧䛶䛔䛺䛔䛣䛸䛻ὀ㛫㈚୚䛧䚸බ⏝䞉⚾⏝䜢ၥ䜟䛪⮬⏤䛻฼⏝䛧䛶䜒䜙䛔฼ព䛜ᚲせ䛷䛒䜛䚹⏝䝻䜾䜢ྲྀᚓ䞉⵳✚䛧䚸ྛ✀ศᯒ䞉◊✲䜢ᐇ᪋䛩䜛䛣䛸䜢╔᝿䛧‽ഛ䜢㐍䜑䛯䚹㻌 ௒ᖺᗘ䛿ලయⓗ䛺䝥䝷䞁䠄ᐇ㦂ᑐ㇟䚸ᡭ㡰䚸㐠⏝యไ➼䠅䛾⢭ᰝ䜢⾜䛔䚸ᚲせ䛺チㅙ䞉ᢎㄆ䜢ᚓ䛯ୖ䛷➨ 1 ᅇᐇ㦂䜢⾜䛳䛯䚹䛺䛚䚸ᑓ㛛ศ㔝䚸ᵓᡂேᩘ➼䜢຺᱌䛧䚸ᇶ♏ᕤᏛ㒊䞉᝟ሗ⛉Ꮫ⛉䠄1 ᖺ⏕䠅䛸䚸ே㛫⛉Ꮫ㒊䠄3 ᖺ⏕䠅䜢ᑐ㇟䛸䛧䛯䚹㈚ฟ䛿 7 ᭶᭱⤊㐌䛛䜙 10 ᭶➨ 1 㐌䜎䛷䛾⣙ 2 䞃᭶㛫䛻䜟䛯䜚ᐇ᪋䛧䝻䜾䜢཰㞟䛧⤖ᯝศᯒ䜢ᐇ᪋䛧䛯䚹㈚୚᫬䛾ᵝᏊ䜢ᅗ 7 䛻♧䛩䚹

ᅗ 8 ࢯࢩ࢜ࢢ࣒ࣛ㸦ࢯ࣮ࢩࣕࣝࢢࣛࣇ㸧ࡢ౛㸫㸫㸲 ♫఍㈉⊩ࣝࢆ฼⏝ࡋࡓ Web ࣮ࣘࢨࣉࣟࣇ࢓࢖ࣜࣥࢢ᪉ Ꮫ఍άືᘧࡢࢥࣥࢸࣥࢶ᥎⸀࡬ࡢ㐺⏝࡟㛵ࡍࡿ◊✲’’,z,QWHUQDWLRQDO-RXUQDORI2UJDQL]DWLRQDODQG

➨ 3 ᅇࢹ࣮ࢱᕤᏛ࡜᝟ሗ࣐ࢿࢪ࣓ࣥࢺ࡟㛵ࡍࡿ&ROOHFWLYH ,QWHOOLJHQFH ,-2&, 㸪 $VVRFLDWH

ࣇ࢛࣮࣒ࣛ (DEIM 2011), 㟼ᒸ, 2011 ᖺ 2 ᭶.
(GLWRUVzࢩࢫࢸ࣒ไᚚ᝟ሗᏛ఍㸪⦅㞟ጤဨz

7KHQG$VLDQ&RQIHUHQFHRQ0DFKLQH/HDUQLQJ
$&0/  㸪3URJUDPFRPPLWWHH

z,$',6 (XURSHDQ &RQIHUHQFH RQ 'DWD 0LQLQJ (&'0 3URJUDPFRPPLWWHH㸦௨ୖ㸪ᑿᓮ㸧  ᖺᗘ◊✲Ⓨ⾲ㄽᩥ୍ぴᏛ⾡ㄽᩥㄅヱᙜ࡞ࡋᅜ㝿఍㆟఍㆟㘓[1] Natsuki Sano, Yuta Kobayashi, Manabu Kuroki,
Minoru Etoh, ``Kernel MT system and its
application,’’ The 8th Asian Network for Quality
Congress (8th ANQ), Delhi, India, October 2010
(Best Paper Award)[2] T. Ozaki and M. Etoh, ``Closed and Maximal
Subgraph Mining in Internally and Externally
Weighted Graph Databases’’, The 4th International
Symposium on Mining and Web (MAW-11),
Singapore, March 2011.
[3] H. Fujimoto, M. Etoh, A. Kinno, and Y. Akinaga,``Web User Profiling on Proxy Logs and its
Evaluation

inPersonalization’’,

The13thAsia-Pacific Web Conference (APWeb 2011),
Beijing, China, April 2011 (to appear)[4] H. Fujimoto, M. Etoh, A. Kinno, and Y. Akinaga.
``Topic Analysis of Web User Behavior using LDA
Model on Proxy Log’’, The 15th Pacific-Asia
Conference on Knowledge Discovery and Data
Mining (PAKDD 2011),Shenzhen, China, May

2011 (to appear)ཱྀ㢌Ⓨ⾲㸦ᅜෆ◊✲఍࡞࡝㸧[5] ⸨ᮏᣅ, ᰤ⸨⛱, 㔠㔝᫭, ⛅Ọ࿴ィ, LDA ࣔࢹ㸫㸫