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tatsushim
June 17, 2015
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word2vecで女性向けQ&Aサイトを解析してみた
2015/06/10
IVS CTO NightのLTで発表したプレゼン資料です。
word2vecにmamariQ内のテキストを使用してみました。
tatsushim
June 17, 2015
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Transcript
word2vecͰঁੑ͚QˍA αΠτΛղੳͯ͠Έͨ Tatsuro Shimada <
[email protected]
> tatsushim @ Connehito, Inc
Connehito Inc. ౡాୡ࿕ʢ͠·ͩͨͭΖ͏ʣ • Connehito, Inc CTO • Πϯϑϥ͔Βϑϩϯτ·Ͱ •
͋ͱ͓՛ࢠͷങ͍ग़͠ PROFILE @tatsushim 2
ϚϚϦͱʁ Connehito Inc. 3
Connehito Inc. ϚϚϦjp (❨web)❩ ϚϚϦ2 (❨ΞϓϦ)❩ ϚϚϦKQ / ϚϚϦ2 ϝσΟΞ
ίϛϡχςΟ 4
Connehito Inc. ࣭ͷճ ˋ ճ͕ͭ͘·Ͱ ҎԼ ΞϓϦͷࡏ࣌ؒ Ҏ্ ѹతͳαʔϏεͷ
+VO +VM "VH 4FQ 0DU /PW %FD +BO 'FC લ݄ൺˋ ྦྷܭߘ ৷ɾग़࢈ͰΉਓͷ ਓʹਓ͕݄̍ΞΫηε 5
Connehito Inc. ϚϚϦKQ / ϚϚϦ2 6 λʔήοτ ࢲ
Connehito Inc. ϚϚϦKQ / ϚϚϦ2 7 ঁੑ λʔήοτ ࢲ
Connehito Inc. ϚϚϦKQ / ϚϚϦ2 8 ঁੑ ϚϚ λʔήοτ ࢲ
Connehito Inc. ϚϚϦKQ / ϚϚϦ2 9 ঁੑ ϚϚ λʔήοτ ࢲ
৷ ग़࢈
Connehito Inc. ϚϚϦKQ / ϚϚϦ2 10 ঁੑ ϚϚ λʔήοτ ࢲ
உੑ ৷ ग़࢈
Connehito Inc. ϚϚϦKQ / ϚϚϦ2 11 ঁੑ ϚϚ λʔήοτ ࢲ
உੑ ৷ ग़࢈ ಠΓ
Connehito Inc. ϚϚϦKQ / ϚϚϦ2 12 ঁੑ ϚϚ λʔήοτ ࢲ
உੑ ಠΓ ৷ ग़࢈ Ͱ͖ͳ͍
ʘ(^o^)ʗ
ʘ(^o^)ʗ Ϣʔβʔͷ͜ͱཧղ͍ͨ͠ʂ
15
16 word2vec
None
Connehito Inc. • Tomas Mikolovࢯ (࣌Google, ݱFacebook)͕ఏҊ • ୯ޠಉ࢜ͷؔੑΛϕΫτϧͱͯ͠දݱ •
୯ޠͷྨࣅͷܭࢉ͠Ҿ͖͕Մೳ word2vecͱʁ 18
19
20 ۩ମྫΛݟͯΈΑ͏
word2vecͷදతͳ2ͭͷ͍ํ Connehito Inc. 21
Display similar words Connehito Inc. 22
None
ྨٛޠ
Interesting properties of the word vectors Connehito Inc. 25
Connehito Inc. 26 word2vecͷྫ vector(‘France')
Connehito Inc. 27 word2vecͷྫ - vector(‘Paris') vector(‘France')
Connehito Inc. 28 word2vecͷྫ - vector(‘Paris') + vector(‘Tokyo’) vector(‘France')
Connehito Inc. 29 word2vecͷྫ - vector(‘Paris') + vector(‘Tokyo’) = vector('Japan')
vector(‘France')
Connehito Inc. 30 word2vecͷྫ vector(‘Paris')
Connehito Inc. 31 word2vecͷྫ - vector(‘France') vector(‘Paris')
Connehito Inc. 32 word2vecͷྫ - vector(‘France') + vector(‘Italy’) vector(‘Paris')
Connehito Inc. 33 word2vecͷྫ - vector(‘France') + vector(‘Italy’) = vector('Rome')
vector(‘Paris')
Connehito Inc. 34 word2vecͷྫ vector(‘king')
Connehito Inc. 35 word2vecͷྫ - vector(‘man') vector(‘king')
Connehito Inc. 36 word2vecͷྫ - vector(‘man') + vector(‘woman’) vector(‘king')
Connehito Inc. 37 word2vecͷྫ - vector(‘man') + vector(‘woman’) = vector('queen')
vector(‘king')
ཧͯ͠ΈΔ Connehito Inc. 38
Connehito Inc. 39 word2vecͷྫ - vector(‘Paris') vector(‘France')
Connehito Inc. 40 word2vecͷྫ - vector(‘Paris') + vector(‘Tokyo’) vector(‘France')
Connehito Inc. 41 word2vecͷྫ - vector(‘Paris') + vector(‘Tokyo’) = vector('Japan')
vector(‘France')
Connehito Inc. 42 word2vecͷྫ - vector(‘Paris') + vector(‘Tokyo’) = vector('Japan')
vector(‘France')}
Connehito Inc. 43 word2vecͷྫ - vector(‘Paris') + vector(‘Tokyo’) = vector('Japan')
vector(‘France') ͋ΔࢢΛटͱ͢Δࠃ }
Connehito Inc. 44 word2vecͷྫ - vector(‘Paris') + vector(‘Tokyo’) = vector('Japan')
vector(‘France') ͋ΔࢢΛटͱ͢Δࠃ } +
Connehito Inc. 45 word2vecͷྫ - vector(‘Paris') + vector(‘Tokyo’) = vector('Japan')
vector(‘France') ͋ΔࢢΛटͱ͢Δࠃ } } +
Connehito Inc. 46 word2vecͷྫ - vector(‘Paris') + vector(‘Tokyo’) = vector('Japan')
vector(‘France') ͋ΔࢢΛटͱ͢Δࠃ } } ౦ژ +
Connehito Inc. 47 word2vecͷྫ - vector(‘Paris') + vector(‘Tokyo’) = vector('Japan')
vector(‘France') ͋ΔࢢΛटͱ͢Δࠃ } } ౦ژ + =
Connehito Inc. 48 word2vecͷྫ - vector(‘Paris') + vector(‘Tokyo’) = vector('Japan')
vector(‘France') ͋ΔࢢΛटͱ͢Δࠃ } } ౦ژ + = }
Connehito Inc. 49 word2vecͷྫ - vector(‘Paris') + vector(‘Tokyo’) = vector('Japan')
vector(‘France') ͋ΔࢢΛटͱ͢Δࠃ } } ౦ژ + = }౦ژΛटͱ͢Δࠃ
50
51 mamariQͰword2vecͯ͠ΈΔ
None
୯ޠͷҙຯΛද͢୯ޠ Connehito Inc. 53
Connehito Inc. 54 ʮಈʯin mamariQ Word: ಈ Word Cosine distance
------------------------------------------------------------------------ ҙ 0.527825 ϙίϙί 0.516658 ҧײ 0.432082 ಈ͖ 0.430563 ͠Όͬ͘Γ 0.406297 ͙͍ͬͨ͘͢ 0.386457 ಈ͍ 0.383030 ى෬ 0.381906 ϙίο 0.377959
Connehito Inc. 55 ʮυΫϯυΫϯʯin mamariQ Word: υΫϯυΫϯ Word Cosine distance
------------------------------------------------------------------------ ຺ଧͭ 0.454460 ϙίο 0.425674 Ͳ͘Ͳ͘ 0.425287 ϐΫο 0.418931 ಥͬுΔ 0.417948 ϐΫϐΫ 0.415464 લଆ 0.413287 ͭͬͺΔ 0.412516
Connehito Inc. 56 ʮೕ৯ʯin mamariQ Word: ೕ৯ Word Cosine distance
------------------------------------------------------------------------ ख͔ͮΈ 0.472250 ͔ͭΈ 0.445568 ॏ౬ 0.432616 ͓͔Ώ 0.425068 τΠτϨ 0.415463 ͨΜͺ࣭͘ 0.412253 ϕϏʔμϊϯ 0.393488 λϯύΫ࣭ 0.392157 ৯ࡐ 0.390477
୯ޠͱ୯ޠͷؔੑ Connehito Inc. 57
Connehito Inc. 58 vector(‘ެཱ') ୯ޠͷ໘ന͍ؔੑ in mamariQ
Connehito Inc. 59 - vector(‘ଉࢠ') vector(‘ެཱ') ୯ޠͷ໘ന͍ؔੑ in mamariQ
Connehito Inc. 60 - vector(‘ଉࢠ') + vector(‘່’) vector(‘ެཱ') ୯ޠͷ໘ന͍ؔੑ in
mamariQ
Connehito Inc. 61 - vector(‘ଉࢠ') + vector(‘່’) = vector('ࢲཱ') vector(‘ެཱ')
୯ޠͷ໘ന͍ؔੑ in mamariQ
62
63 ঁͷࢠͷํ͕ࢲཱΛݕ౼͢Δʁ
Connehito Inc. 64 vector(‘νϡʔϋΠ') ୯ޠͷ໘ന͍ؔੑ in mamariQ
Connehito Inc. 65 - vector(‘͓͞Μ') vector(‘νϡʔϋΠ') ୯ޠͷ໘ന͍ؔੑ in mamariQ
Connehito Inc. 66 - vector(‘͓͞Μ') + vector(‘͓͞Μ’) vector(‘νϡʔϋΠ') ୯ޠͷ໘ന͍ؔੑ in
mamariQ
Connehito Inc. 67 - vector(‘͓͞Μ') + vector(‘͓͞Μ’) = vector('Ϗʔϧ') vector(‘νϡʔϋΠ')
୯ޠͷ໘ന͍ؔੑ in mamariQ
68
69 உੑͷํ͕Ϗʔϧ͖ʁ
Connehito Inc. 70 vector(‘ՄѪ͍') ୯ޠͷ໘ന͍ؔੑ in mamariQ
Connehito Inc. 71 - vector(‘ଉࢠ') vector(‘ՄѪ͍') ୯ޠͷ໘ന͍ؔੑ in mamariQ
Connehito Inc. 72 - vector(‘ଉࢠ') + vector(‘່’) vector(‘ՄѪ͍') ୯ޠͷ໘ന͍ؔੑ in
mamariQ
Connehito Inc. 73 - vector(‘ଉࢠ') + vector(‘່’) = vector('ՄѪ͍') vector(‘ՄѪ͍')
୯ޠͷ໘ന͍ؔੑ in mamariQ
Connehito Inc. 74 - vector(‘ଉࢠ') + vector(‘່’) = vector('ՄѪ͍') vector(‘ՄѪ͍')
୯ޠͷ໘ന͍ؔੑ in mamariQ ʊਓਓਓਓਓʊ ʼɹՄѪ͍ɹʻ ʉY^Y^Y^Y
None
ͨͩͷόΧ
ຊޠʹword2vecదԠ͢ΔࡍͷTips Connehito Inc. 77
Connehito Inc. 78 ຊޠʹword2vecదԠ͢ΔࡍͷTips
Connehito Inc. • ࣙॻʹmecab-ipadic-neologdΛ͏ - Web্ͷݴޠࢿݯ͔Βಘͨ৽ޠʹରԠ 79 ຊޠʹword2vecదԠ͢ΔࡍͷTips
Connehito Inc. • ࣙॻʹmecab-ipadic-neologdΛ͏ - Web্ͷݴޠࢿݯ͔Βಘͨ৽ޠʹରԠ 80 ຊޠʹword2vecదԠ͢ΔࡍͷTips • ۀքݻ༗ͷϫʔυͪΌΜͱొ͢Δ
- Ex. 24w3d = ৷͔Β24िͱ3
Connehito Inc. • ࣙॻʹmecab-ipadic-neologdΛ͏ - Web্ͷݴޠࢿݯ͔Βಘͨ৽ޠʹରԠ 81 ຊޠʹword2vecదԠ͢ΔࡍͷTips • ύϥϝʔλௐ
- Ex. αʔϏεʹ߹Θͤͨwindow sizeΛ • ۀքݻ༗ͷϫʔυͪΌΜͱొ͢Δ - Ex. 24w3d = ৷͔Β24िͱ3
82
83 ݁ہԿʹ͑Δͷ͔ʁ
Connehito Inc. 84 Ԡ༻ઌ
Connehito Inc. • ྨٛޠݕग़ 85 Ԡ༻ઌ
Connehito Inc. • ྨٛޠݕग़ 86 • QˍAίϛχϡχςΟͰQʹରͯ͠࠷ྑ ͍ճΛܾΊΔͱ͖ͷfeatureʹ͏ͱ͔(࣮ ࡍԠ༻ͨ͠จ͕͋Δ) Ԡ༻ઌ
Connehito Inc. • ྨٛޠݕग़ 87 • QˍAίϛχϡχςΟͰQʹରͯ͠࠷ྑ ͍ճΛܾΊΔͱ͖ͷfeatureʹ͏ͱ͔(࣮ ࡍԠ༻ͨ͠จ͕͋Δ) •
͍͔ͭ͘Ծઆ͕͋ΔͷͰɺ্ख͘ߦͬͨΒ จʹͯ͠ൃ৴͍͖ͯ͠·͢ Ԡ༻ઌ
͜͜·Ͱ͕word2vecͷ͓ Connehito Inc. 88
Connehito Inc. • Ҏ্͕ɺword2vecΛͬͯΈ͓ͨͰ͢ 89 • IVS CTO NightॳࢀՃͰϫΫϫΫͯ͠·͢ •
͜͏͍͏RˍDΛΈΜͳ͍ͭͬͯɺͲ͏ औΓೖΕͯΔͷ͔Γ͍ͨ • ͜ͷޙྑ͔ͬͨΒ͓͍ͤͯͩ͘͞͞ վΊ͓ͯٓ͘͠ئ͍͠·͢ʂ
Connehito Inc. • Ҏ্͕ɺword2vecΛͬͯΈ͓ͨͰ͢ 90 • IVS CTO NightॳࢀՃͰϫΫϫΫͯ͠·͢ •
͜͏͍͏RˍDΛΈΜͳ͍ͭͬͯɺͲ͏ औΓೖΕͯΔͷ͔Γ͍ͨ • ͜ͷޙྑ͔ͬͨΒ͓͍ͤͯͩ͘͞͞ վΊ͓ͯٓ͘͠ئ͍͠·͢ʂ ͝ਗ਼ௌ༗͏͍͟͝·ͨ͠ʂ