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2021年度-基盤研究B-研究計画調書
Y. Yamamoto PRO
June 10, 2025
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ïࣈð ݚڀදऀ ॴଐݚڀػؔ ྩúïù÷ùøð ج൫ݚڀʢ̗ʣʢҰൠʣݚڀܭըௐॻ ø÷ çù ùý
݄ ôçøçô ੩Ԭେֶ ෦ɹہ ใֶ෦ ৬ ïϑϦΨφð ϠϚϞτçϢεέ ߨࢣ ݚڀ՝໊ ൷తͳΣϒใ୳ࡧΛ׆ੑԽͤ͞ΔใΠϯλϥΫγϣϯ ࢯ໊ ઃඋඋඅ ফඅ ݚڀܦඅ çʢઍԁʣ ཱྀඅ ͦͷଞ ༻༁ʢઍԁʣ ૯ܭ ݚçڀçܦçඅ ઍԁະຬͷ Γ ࣺͯΔ ৽ن ྩú ྩû ྩü ྩý ççççúóýĀ÷ ççççüóþù÷ ççççúóþù÷ ççççûóüù÷ çççççççç÷ ççççççÿÿ÷ ççççççøú÷ ççççøóø÷÷ ççççççĀý÷ ççççúóÿ÷÷ ççççùó÷÷÷ çççççççç÷ çççççççç÷ çççççççç÷ çççççççÿ÷ çççççççÿ÷ çççççççÿ÷ çççççççç÷ ççççøóý÷÷ ççççøóý÷÷ ççççùóø÷÷ çççççççç÷ ççççøó÷ÿ÷ ççççøó÷ÿ÷ ççççøó÷ÿ÷ çççççççç÷ ççççççýù÷ ççççççĀý÷ ççççççĀý÷ ççççøóùý÷ ։ࣔرͷ༗ແ ৹ࠪ݁Ռͷ։ࣔΛر͢Δ çú൛ ݚڀܭը࠷ऴલԠื ôô ྩþ çççøþóýü÷ ççççùóÿÿ÷ ççççççúþ÷ ççççýóû÷÷ ççççûóù÷÷ çççççççç÷ ਓ݅අ ँۚ ɾ ø ÷÷÷ø øúÿ÷ø ýù÷ù÷ ÷ü ཧ൪߸ খ۠ ػؔ൪߸ ݚڀछ൪߸ Ԡื۠൪߸ খ۠ Σϒใֶ͓ΑͼαʔϏεใֶؔ࿈ ݚڀछ ج൫ݚڀïĉð Ԡื۠ Ұൠ ྩ ࢁຊç༞ี -
ࢁຊɹ༞ี ϠϚϞτɹϢεέ ߨࢣ ใֶ෦ ݚڀ৫ʢݚڀදऀٴͼݚڀ୲ऀʣ ࢯ໊ʢྸʣ ॴଐݚڀػؔ ෦ہ ৬ ֶҐ
ׂ୲ ੩Ԭେֶ ത࢜ʢใֶʣ ݚڀදऀ ݚڀܦඅ ΤϑΥ ïઍԁð ʔτ ïìð ôçùçô ݚ ڀ ද ऀ ߹ܭ ໊ ݚڀܦඅ߹ܭ ྩú ççççúóýĀ÷ ççççúóýĀ÷ çøü øúÿ÷øô÷üøôýù÷ù÷ô÷÷÷ø ççø ü÷ýùüûúø ʢúÿʣ -
༷ࣜ S ʵ̍̏ ݚڀܭըௐॻʢఴϑΝΠϧ߲ʣ ج൫ݚڀʢ̗ʣ ʢҰൠʣ ̍ ᇶ┙◊✲㸦㹀㸧㸦୍⯡㸧㸯 㸯 ◊✲┠ⓗࠊ◊✲᪉ἲ࡞
ᮏ◊✲ィ⏬ㄪ᭩ࡣࠕᑠ༊ศࠖࡢᑂᰝ༊ศ࡛ᑂᰝࡉࢀࡲࡍࠋグ㏙ᙜࡓࡗ࡚ࡣࠊࠕ⛉Ꮫ◊✲㈝ຓᡂᴗ࠾ࡅࡿᑂᰝཬࡧホ౯ 㛵ࡍࡿつ⛬ࠖ㸦බເせ㡿㸯㸯㸯㡫ཧ↷㸧ࢆཧ⪃ࡍࡿࡇࠋ ᮏḍࡣࠊᮏ◊✲ࡢ┠ⓗ᪉ἲ࡞ࡘ࠸࡚ࠊ㸲㡫௨ෆ࡛グ㏙ࡍࡿࡇࠋ ෑ㢌ࡑࡢᴫせࢆ⡆₩ࡲࡵ࡚グ㏙ࡋࠊᮏᩥࡣࠊ ᮏ◊✲ࡢᏛ⾡ⓗ⫼ᬒࠊ◊✲ㄢ㢟ࡢ᰾ᚰࢆ࡞ࡍᏛ⾡ⓗࠕၥ࠸ࠖࠊ ᮏ◊✲ࡢ┠ⓗ࠾ࡼࡧᏛ⾡ⓗ⊂⮬ᛶ㐀ᛶࠊ ᮏ◊✲࡛ఱࢆࡢࡼ࠺ࠊࡇࡲ࡛᫂ࡽࡋࡼ࠺ࡍࡿࡢࠊࡘ࠸࡚ලయ ⓗࡘ᫂☜グ㏙ࡍࡿࡇࠋ ᮏ◊✲ࢆ◊✲ศᢸ⪅ࡶ⾜࠺ሙྜࡣࠊ◊✲௦⾲⪅ࠊ◊✲ศᢸ⪅ࡢලయⓗ࡞ᙺࢆグ㏙ࡍࡿࡇࠋ 㸦ᴫせ㸧 㸦ᮏᩥ㸧 ͤ␃ព㡯㸸 1. సᡂᙜࡓࡗ࡚ࡣࠊ◊✲ィ⏬ㄪ᭩సᡂ࣭グධせ㡿ࢆᚲࡎ☜ㄆࡍࡿࡇࠋ 2. ᮏᩥయࡣ㸯㸯࣏ࣥࢺ௨ୖࡢࡁࡉࡢᩥᏐ➼ࢆ⏝ࡍࡿࡇࠋ 3. ྛ㡫ࡢୖ㒊ࡢࢱࢺࣝᣦ♧᭩ࡁࡣືࡉ࡞࠸ࡇࠋ 4. ᣦ♧᭩ࡁ࡛ᐃࡵࡽࢀࡓ㡫ᩘࡣ㉸࠼࡞࠸ࡇࠋ࡞࠾ࠊ✵ⓑࡢ㡫ࡀ⏕ࡌ࡚ࡶ๐㝖ࡋ࡞࠸ࡇ ࠋ 5. ᮏ␃ព㡯㸦ᩳయࡢᩥ❶㸧ࡣࠊ◊✲ィ⏬ㄪ᭩ࡢసᡂࡣ๐㝖ࡍࡿࡇࠋ ᵝᘧ㹑㸫㸯㸱◊✲ィ⏬ㄪ᭩㸦ῧࣇࣝ㡯┠㸧 ʢ֓ཁʣ ຊݚڀ՝Ͱɼ൷తͳΣϒใ୳ࡧΛଅਐɾ׆ੑԽͤ͞ΔใΠϯλϥΫγϣϯٕज़ͷݚ ڀ։ൃΛߦ͏ɽ۩ମతʹҎԼͷݚڀ߲ʹऔΓΉɿ • ใ୳ࡧߦಈΛলɾվળ͢ΔͨΊͷΣϒϒϥβ • φοδΛ༻͍ͨɼใਫ਼ࠪଶΛܹ͢Δݕࡧ݁ՌαϚϦͷੜ • ൷తใ୳ࡧΛϑΝγϦςʔγϣϯ͢Δʮ͍ʯͷରతఏࣔ ใͷ৴པੑΛҙ͍ࣝͯ͠ͳ͍ϢʔβภͬͨใऔಘΛߦ͍ͬͯΔϢʔβ͕ɼۄੴࠞᔿͷΣ ϒ͔Β൷తʹใΛऔಘ͢Δ͏͑ͰඞཁͱͳΔεΩϧͱଶΛແཧͳࣗ͘વʹվળͰ͖ΔΑ͏ɼ ্ه 3 ߲ͷݚڀ։ൃʹऔΓΉɽ ʢຊจʣ ຊݚڀͷֶज़తഎܠ ΣϒใΞΫηεٕज़ͷൃలʹΑͬͯɼ୭͕ࣗ༝ʹใΛൃ৴ɾऔಘͰ͖ΔΑ͏ʹͳͬ ͨɽͦͷҰํͰɼΣϒใͷ৴པੑใऔಘͷภΓ͕ࣾձʹͳ͍ͬͯΔɽίϩφՒʹ͓ ͍ͯɼ ʮ৽ܕίϩφΠϧεʹΑͬͯτΠϨοτϖʔύʔ͕ෆ͢Δʯͱ͍ͬͨϑΣΠΫχϡʔ ε͕ιʔγϟϧϝσΟΞ্Ͱ֦ࢄͨ͜͠ͱɼهԱʹ৽͍͠1ɽ Σϒใͷ৴པੑใऔಘͷภΓʹ͔͔ΔɼύʔιφϥΠθʔγϣϯٕज़ʹΑͬͯ ͞ΒʹਂࠁԽ͍ͯ͠Δɽྫ͑ɼ࣏τϐοΫʹରͯ͠ύʔιφϥΠθʔγϣϯΛ༻͍ͨใ ৴͕ߦΘΕΔͱɼෆ͔֬ʹ͔͔ΘΒͣࣗͷڵຯ৴೦ʹҰக͢ΔใΛݟΔػձ͕૬ରతʹ ૿͑Δ͜ͱʹΑΓɼݸਓͷภݟ͕ॿ͞ΕɼࣾձͷۃԽ͕ਐΉ͜ͱ͕ࢦఠ͞Ε͍ͯΔɽ ͜ͷΑ͏ͳঢ়گʹରԠ͢ΔͨΊɼใݕࡧσʔλֶͷͰɼϑΣΠΫχϡʔεͷݕग़ ΞϧΰϦζϜΛؚΊɼใͷ࣭Λ༷ʑͳ͔֯ΒධՁɾੳ͢ΔΞϧΰϦζϜ͕ఏҊ͞Ε͖ͯ ͨɽ͜ΕΒܭࢉػʹΑΔใ࣭ͷࣗಈੳΞϓϩʔνɼͦͷద༻ൣғ͕ੳʹඞཁͱͳΔ ࣄલ͕ࣝೖखͰ͖ΔυϝΠϯʹݶΒΕΔɽ·ͨɼΞϧΰϦζϜ͕ฦ͢ग़ྗɼใͷਖ਼͠͞Λ อূ͍ͯ͠ΔΘ͚Ͱͳ͍ɽ͞Βʹผͷͱͯ͠ɼܭࢉػ͕ใͷ࣭Λஅ͢ΔࡐྉΛఏ ڙͯ͠ɼͦΕΛదʹར༻Ͱ͖ͳ͍/ར༻͠ͳ͍Ϣʔβ͕ଘࡏ͢ΔɽਃऀɼΣϒใͷ ৴པੑஅࢧԉγεςϜͷݚڀͰɼϢʔβධՁͷߴ͍จॻΛతʹӾཡͨ͠ΓɼγεςϜ ͷఏڙใΛࣗͷ৴೦ʹҰக͢ΔΑ͏ʹ߹Α͘ղऍ͠ɼใͷۛຯΛߦΘͳ͍͕͋Δ͜ ͱΛ໌Β͔ʹ͍ͯ͠Δʢݚڀۀ [10, 11]ʣ ɽ ଟ༷ͳ؍͔ΒͷใऔಘΛࢧԉ͢Δݕࡧ݁Ռͷଟ༷Խٕज़ɼใऔಘͷภΓΛܰݮ͢Δ্ Ͱ༗ޮʹಇ͘Մೳੑ͕͋Δ2ɽ͔͠͠ɼใ୳ࡧϢʔβ͕ࣗΉใΛ༏ઌతʹӾཡ͢Δʮબ తҙʯΛ༗͢ΔɽͦΕΏ͑ɼภͬͨใऔಘΛ͍ͯ͠ΔϢʔβͷࢹΛ͛Δʹɼબ తҙͷଘࡏΛߟྀͨ͠ใΞΫηεγεςϜͷઃܭ͕ٻΊΒΕΔɽ 1૯লɿ ʮ৽ܕίϩφΟϧεײછʹؔ͢Δใྲྀ௨ௐࠪʯ ɼ2020 6 ݄ɽ 2Rafiei, K. Davood et al. Diversifying Web Search Results. In Proceedings of the 19th International Conference on World Wide Web (WWW 2010), pp.781–90, 2010. -
ʲ̍ɹݚڀతɼݚڀํ๏ͳͲʢ͖ͭͮʣ ʳ ج൫ݚڀʢ̗ʣ ʢҰൠʣ ̎ ۄੴࠞᔿͷΣϒใ͔Βੜ্͖͍ͯ͘ͰඞཁͱͳΔใΛऔಘ͢ΔʹɼطଘͷݚڀϓϩδΣ ΫτͰߦΘΕ͍ͯΔΑ͏ͳɼܭࢉػ͕ਓؒͷΘΓʹใͷ࣭ධՁΛߦ͏Ξϓϩʔν͚ͩͰ ෆेͰ͋Δɽถࠃϐϡʔݚڀॴใࠂ͍ͯ͠ΔΑ͏ʹɼΣϒʹ͓͚Δใͷ৴པੑ/ภͬͨ ใऔಘͷΛղܾ͢Δʹɼ୯ͳΔٕज़తͳͰͳ͘ɼใΛड͚औΔϢʔβͷใϦ ςϥγʔʹযΛͯΔඞཁ͕͋ΔɽPost-truth
࣌ͱ͍͏ݴ༿ʹ͞ΕΔΑ͏ʹɼ͕ࣗ ৴༻Ͱ͖Δใ͕ʮਖ਼͍͠ใʯͰ͋Δͱߟ͑Δ෩ை͕ڧ·͍ͬͯΔঢ়گʹ͓͍ͯɼใΞΫ ηεγεςϜΛ͍͜ͳ͠ɼϢʔβࣗΒใΛ൷తʹ୳ࡧɾӾཡ͢ΔϦςϥγʔ͕ɼ͜Ε·Ͱ Ҏ্ʹڧ͘ٻΊΒΕ͍ͯΔɽܭࢉػʹΑΔใ࣭ͷධՁΞϓϩʔνͷෆશੑΛิ͏ͨΊʹɼ Ϣʔβͷ൷తͳใ୳ࡧ׆ಈΛ׆ੑԽͤ͞ΔΞϓϩʔν͕ॏཁͱͳΔɽ ݚڀ՝ͷ֩৺Λͳֶ͢ज़తʮ͍ʯ ઌʹड़ֶͨज़తഎܠΛ౿·͑ΔͱɼΣϒϢʔβͷ൷తͳใ୳ࡧ׆ಈΛ׆ੑԽͤ͞Δʹ ɼҎԼͷΑ͏ͳֵ৽తͳֶज़తʮ͍ʯʹ͑Δඞཁ͕͋Δɽ͢ͳΘͪɼ ͍ 1 ΣϒใΛ൷తʹ୳ࡧɾӾཡ͠Α͏ͱ͍ͯ͠ͳ͍ɼ͋Δ͍ҙཉ͋ͬͯͰ͖͍ͯ ͳ͍Ϣʔβͷ൷తใ୳ࡧ׆ಈΛ׆ੑԽͤ͞ΔʹɼͲͷΑ͏ͳใγεςϜɾΠϯλϥ ΫγϣϯΛઃܭ͢Δ͜ͱ͕Մೳ͔ʁ ਃऀ͕աڈʹߦͬͨݚڀͰɼΣϒݕࡧΤϯδϯͳͲͷใΞΫηεγεςϜΛ༻͍ͯ൷త ʹΣϒใΛऩू͢Δʹɼ ʮΣϒใͷ࣭Λ֬ೝ͢ΔͨΊͷํུʯ ʮใΞΫηεγεςϜΛ ͍͜ͳ͢εΩϧʯ ʮ൷తͰ͋Ζ͏ͱ͢Δଶʯ ͳͲɼ ൷తͳใ୳ࡧΛߦ͏ͨΊͷεΩϧతଆ໘ ͱଶతଆ໘ͷ྆໘ͰͷڧԽ͕ඞཁͰ͋Δ͜ͱ͕໌Β͔ʹͳ͍ͬͯΔʢݚڀۀ [8]ʣ ɽ͕ͨͬ͠ ͯɼຊݚڀ՝Ͱ্ه͍͔Βੜͯ͠ɼҎԼͷ 2 ͭͷֶज़తʮ͍ʯΛઃఆ͢Δɽ ͍ 2 Ϣʔβ͕ࣗͷΣϒ୳ࡧߦಈΛলΈͯɼ൷తใ୳ࡧʹඞཁͳεΩϧΛແཧͳ͘ண࣮ ʹվળ͢ΔʹɼͲͷΑ͏ͳใγεςϜɾΠϯλϥΫγϣϯΛઃܭ͢ΕΑ͍͔ʁ ͍ 3 Σϒ୳ࡧߦಈΛ͛Δ͜ͱͳ͘ɼϢʔβͷੵۃతͳ൷తใ୳ࡧߦಈΛ༠ൃ͢Δʹɼ ͲͷΑ͏ͳใγεςϜɾΠϯλϥΫγϣϯΛઃܭ͢ΕΑ͍͔ʁ ຊݚڀͷత ຊݚڀ՝ͰɼใΞΫηεγεςϜΛ༻͍ͯใΛ൷తʹਫ਼ࠪ͠ɼҙࢥܾఆʹ༗༻ͳใΛ ੵۃతʹऩू͢ΔߦಈΛ൷తใ୳ࡧͱఆٛ͢Δɽຊ՝ͷతɼใͷ৴པੑΛҙ͍ࣝͯ͠ ͳ͍Ϣʔβภͬͨ ɾ ҆қͳใऔಘΛߦ͍ͬͯΔϢʔβ͕ɼ ۄੴࠞᔿͷΣϒใ͔Βੜ͖͍ͯͨ͘ ΊʹඞཁͳใΛ൷తʹऔಘͰ͖ΔΑ͏ɼ ൷తใ୳ࡧʹඞཁͱͳΔεΩϧଶΛແཧͳ͘ ࣗવʹվળ͠ɼ൷తใ୳ࡧΛଅਐ͢ΔใΠϯλϥΫγϣϯٕज़Λ։ൃ͢Δ͜ͱͰ͋Δɽ ֶज़తಠࣗੑͱੑ ਤ 1: ຊݚڀ՝ͷҐஔ͚ͮ ใݕࡧσʔλֶͷͰɼߴ ࣭ͳใΛޮΑ͘ใݕࡧɾӾཡ͢ Δ͜ͱΛࢧԉ͘͢ɼ(1) ใͷ࣭ʹؔ ͢Δ༷ʑͳੳΞϧΰϦζϜͷݚڀʢਤ 1 ࠨԼʣ ɼ(2) அࡐྉͷࣗಈूɾՄ ࢹԽٕज़ʹؔ͢Δݚڀʢਤ 1 ӈԼʣ͕ ߦΘΕ͖ͯͨɽຊݚڀ՝ͷֶज़తಠ -
ʲ̍ɹݚڀతɼݚڀํ๏ͳͲʢ͖ͭͮʣ ʳ ج൫ݚڀʢ̗ʣ ʢҰൠʣ ̏ ࣗੑɼ্ه (1) ͱ (2) ͷΞϓϩʔνʹΑͬͯ։ൃ͞ΕͨใΞΫηεγεςϜΛ͏·͘
͍͜ͳ͢͜ͱ͕Ͱ͖ͳ͍ʮਓؒͷඇ߹ཧతଆ໘ʯΛܭࢉػΛ༻͍ͯվળ͠Α͏ͱ͢Δʹ͋Δɽ ͜ΕΛୡ͢ΔͨΊʹɼຊݚڀ՝ͰɼਃऀͷઐͰ͋ΔใݕࡧʹՃ͑ͯɼೝ৺ཧ ֶɼߦಈܦࡁֶɼڭҭֶͷݟΛԣஅతʹ׆༻͢Δɽ͜ͷʹ͓͍ͯɼຊݚڀ՝ੑ͕ ͋Δͱߟ͑Δɽ ຊݚڀͰԿΛͲͷΑ͏ʹɼͲ͜·Ͱ໌Β͔ʹ͠Α͏ͱ͢Δͷ͔ ਤ 2: ຊݚڀ՝ͷϑϨʔϜϫʔΫɽ ਤ 2 ʹɼຊݚڀ՝ͷϑϨʔϜ ϫʔΫΛࣔ͢ɽຊݚڀ՝Ͱɼ൷ తใ୳ࡧʹඞཁͱͳΔεΩϧ ଶΛ্ͤ͞ɼϢʔβͷੵۃతͳ ൷తใ୳ࡧΛଅਐ͢ΔͨΊʹɼ ʢ1ʣলɼ ʢ2ʣφοδʢ҉తઆಘʣ ɼ ʢ3ʣϑΝγϦςʔγϣϯʢ໌ࣔతઆಘʣ ɼ ͷ؍͔Βݚڀ։ൃΛߦ͏ɽҎԼʹ۩ ମతͳݚڀ߲Λه͢ɽ ݚڀ߲ 1: ࣗͷใ୳ࡧߦಈΛলɾվળ͢ΔͨΊͷΣϒϒϥβ ਤ 3: ൷తใ୳ࡧεΩϧͷఔվળϙΠ ϯτΛলͤ͞ΔϒϥβͷΠϝʔδɽ ൷తใ୳ࡧͷεΩϧํུΛলɾվળ ͢ΔͨΊͷϒϥβʹؔ͢ΔݚڀΛߦ͏ɽ ҰൠʹɼεΩϧೳྗΛվળ͢ΔͨΊʹɼࣗ ͷݱঢ়ΛৼΓฦΓվળ͖͢ΛѲ͢Δ͜ ͱ͕ॏཁͰ͋Δͱ͞Ε͍ͯΔɽͱ͜Ζ͕ɼ൷త ใ୳ࡧʹ͍ͭͯɼࣗͷεΩϧͷఔߦ ಈΛϝλೝ͢Δ͜ͱ༰қͰͳ͍ɽҰ ํͰɼϢʔβࣗͷγεςϜར༻ύλʔϯΛল ΈΔͨΊͷใ·͍͠ߦಈͷྫࣔʹΑͬͯɼ γεςϜͷར༻εΩϧ͕͢Δͱ͍͏ݚڀࣄྫ ͍͔ͭ͘ใࠂ͞Ε͍ͯΔ34ɽ ਃऀաڈͷݚڀͰɼใΞΫηεγες ϜΛ༻͍ͯ൷తʹΣϒใΛ୳ࡧ͢ΔεΩ ϧΛධՁ͢ΔͨΊͷईͱ࣭ࢴΛ։ൃͨ͠ʢݚ ڀۀ [8]ʣ ɽ·ͨɼΣϒݕࡧΤϯδϯͷݕࡧ ϩάΛղੳ͢Δ͜ͱͰɼ൷తͳใ୳ࡧΛߦ ͏Ϣʔβʹಛ༗ͷΣϒݕࡧߦಈΛ໌Β͔ʹͭͭ͋͠Δʢݚڀۀ [7]ʣɽ͜ΕΒͷݟΛ׆༻ ͯ͠ɼ൷త୳ࡧ͕Ͱ͖ΔϢʔβͷ۩ମతͳߦಈΛྨܕԽ্ͨ͠ͰɼϢʔβͷΣϒ୳ࡧߦಈ Λ;·͑ͯɼ൷తใ୳ࡧεΩϧͷఔվળϙΠϯτΛՄࢹԽ͢ΔϒϥβΠϯλϑΣʔ εΛ։ൃ͢Δʢਤ 3ʣɽڭҭֶͷͰɼϞνϕʔγϣϯΛอͪͳ͕ΒվળΛଓ͚ΔͨΊ ʹɼ ʮݱঢ়ͷϨϕϧΑΓগ͠ߴ͍՝Λఏࣔ͢Δ͜ͱʯ ʮଞऀൺֱΑΓաڈͷࣗ ͱͷൺֱʹΑΔධՁʯ͕༗ޮͱ͞Ε͍ͯΔɽ͜ͷΑ͏ͳݟ౿·͑ͳ͕ΒɼΣϒ୳ࡧϢʔ β͕ϞνϕʔγϣϯΛอͪͳ͕Βɼࣗͷ൷తใ୳ࡧߦಈΛ·͍͠ํʹվળ͢ΔͨΊͷ লΠϯλϑΣʔεͷઃܭͱධՁΛߦ͏ɽ 3Harvey et al.: Learning by Example: Training Users with High-Quality Query Suggestions. In Proceedings of the 38th International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2015), pp. 133–42. 4Bateman et al.: The Search Dashboard: How Reflection and Comparison Impact Search Behavior. In Pro- ceedings of the SIGCHI Conference on Human Factors in Computing Systems (CHI 2012), pp. 1785–94. -
ʲ̍ɹݚڀతɼݚڀํ๏ͳͲʢ͖ͭͮʣ ʳ ج൫ݚڀʢ̗ʣ ʢҰൠʣ ̐ ݚڀ߲ 2: φοδΛ༻͍ͨɼใਫ਼ࠪଶΛܹ͢Δݕࡧ݁ՌαϚϦͷੜʢ҉తઆಘʣ ਤ 4:
։ൃ͢ΔݕࡧαϚϦͷྫɽ ຊݚڀ߲Ͱɼ൷తͳใ୳ࡧ͕ඞཁͳγʔϯͷҰྫͱ ͯ͠ɼۄੴࠞᔿͷΣϒҩྍใͷݕࡧʢྫɿࢢൢༀɾපӃݕ ࡧʣʹযΛͯΔɽͦͷ্Ͱɼใਫ਼ࠪଶΛܹ͠ɼ൷ తͳใ୳ࡧߦಈΛແཧͳࣗ͘વʹ༠ൃ͢ΔɼφοδΛར༻͠ ͨݕࡧ݁ՌαϚϦʢ֓ཁจʣͷੜʹؔ͢ΔݚڀΛߦ͏ɽ Ұൠʹɼใͷ৴པੑ࣭ΛධՁ͢Δ͜ͱʹڧ͘ಈػ͚ͮΒ Ε͍ͯͳ͍Ϣʔβɼ҉ͷ͏ͪʹʮݕࡧ݁ՌͷॱҐʯʮϨ Ϗϡʔͷͷʯͱ͍ͬͨදతͳख͕͔ΓͰใͷ࣭Λஅ ͯ͠͠·͏͜ͱ͕ΒΕ͍ͯΔɽͦͷͨΊɼ࣮க໋తͳܽ ͕͋Δʹ͔͔ΘΒͣɼݕࡧ݁ՌॱҐ͕ߴ͍͚ͩͰใΛӏವ Έʹͯ͠͠·͏Մೳੑ͕͋Δɽ ຊݚڀ߲Ͱɼ൷తใ୳ࡧͷಈػ͚ͷͨΊʹʮφο δʯͱʮଛࣦճආόΠΞεʯʹண͢ΔɽφοδͱߦಈܦࡁֶͷͰΛूΊ͍ͯΔ֓೦ Ͱɼબͷ༨Λ͠ͳ͕ΒϢʔβΛಛఆͷબʹ༠ಋ͢ΔΞϓϩʔνͰ͋Δɽଛࣦճආό ΠΞεɼϝϦοτΑΓσϝϦοτΛେ͖͘ײ͍͢͡ͱ͍͏ਓؒͷੑ࣭Ͱ͋Δɽຊݚڀ߲ Ͱɼ·ͣҩྍใʢࢢൢༀɾපӃʣʹؔ͢ΔϨϏϡʔใʹରͯ͠ Attention ػߏΛ༻͍ͨਂ ࣗવݴޠॲཧΛߦ͍ɼଛࣦճආόΠΞεΛײͤ͡͞Δ؍Λநग़͢Δํ๏Λ։ൃ͢Δɽͦͷ্ Ͱɼҩྍใͷݕࡧ࣌ʹɼଛࣦճආόΠΞεΛײͤ͡͞Δ؍ΛΈ͜Μͩݕࡧ݁ՌαϚϦͷઃ ܭɾධՁΛߦ͏ɽݕࡧ݁ՌॱҐ্͕ҐͰ͋ͬͨΓ૯߹ධՁΛࣔ͢ͷ͕ଟ͍පӃɾࢢൢༀͰɼ ಛఆͷ؍ͰଛࣦͷՄೳੑΛײͤ͡͞Δ͜ͱͰɼ৻ॏͳใਫ਼ࠪΛ༠ൃ͢Δ͜ͱΛࢦ͢ɽ ݚڀ߲ 3: ൷తใ୳ࡧΛϑΝγϦςʔτ͢Δʮ͍ʯͷରతఏࣔʢ໌ࣔతઆಘʣ ຊ߲Ͱɼ൷తʹใΛಡΈղ্͘ͰɼௐΔ͖ใΛਂ͘ௐΔ͜ͱΛઆಘ͢ΔͨΊͷ ใݕࡧΠϯλϥΫγϣϯʹ͍ͭͯݚڀΛߦ͏ɽ۩ମతʹɼ ʮΑ͘ߟ͑Δͱɼ͔֬ʹͦͷτϐοΫʹ ͍ͭͯ͋·Γਂ͘ߟ͍͑ͯͳ͔ͬͨͷͰɼ ௐΔඞཁ͕͋Δʯ ͱࢥΘͤΔΑ͏ͳ͍͔͚จΛΣϒ ݕࡧதʹରతʹఏࣔ͠ɼ൷తใ୳ࡧΛϑΝγϦςʔτ͢ΔϘοτΛ։ൃ͠ɼͦͷ༗ޮੑΛ ݕূ͢Δɽྫ͑ɼ ʮίϩφΠϧε Ξϧίʔϧʯͱ͍͏ݕࡧτϐοΫʹରͯ͠ʮೱʯ͕ॏཁ ͳؔ࿈τϐοΫͱͯ͠ߟ͑ΒΕΔɽ͜ͷࡍɼΞϧίʔϧͳΒԿͰΑ͍ͱࢥ͍ͬͯΔϢʔβʹೱ ͷҧ͍͕ফಟޮՌʹӨڹ͢Δ͜ͱΛؾ͔ͤΔͨΊʹɼϘοτ͕ʮফಟʹඞཁͳΞϧίʔϧ Ͳͷఔͩͱࢥ͏͔ʁʯͱ͍͏͍Λ͔͚͛Δ͜ͱΛఆ͍ͯ͠Δɽ ڭҭֶίʔνϯάͷͰɼରऀ͔ΒࣗൃతͳࢥߟΛҾ͖ग़͠ɼؾ͖ͮߦಈΛଅ͢ ʹʮ͍ͷσβΠϯʯ͕ॏཁͱ͞Ε͍ͯΔ5ɽຊݚڀ߲ͰɼಛఆͷτϐοΫʹ͍ͭͯݕࡧ͠ ͍ͯΔΣϒϢʔβͷϖʔδӾཡཤྺ͔ΒɼϢʔβ͕Ӿཡͨ͠τϐοΫͷใྔΛܭଌ͠ɼཏ ͍ͯ͠ͳ͍αϒτϐοΫΛʮਂ͘ௐΒΕ͍ͯͳ͍τϐοΫʯͱͯ͠நग़͢Δɽͦͷ্Ͱɼਂ͘ ௐΒΕ͍ͯͳ͍τϐοΫͷݕࡧΛଅ͢ʮྑ͍͍ʯΛΣϒ͔Βൃݟ͠ɼΣϒݕࡧதͷϢʔ βʹϘοτΤʔδΣϯτΛ༻͍ͯରతʹʮ͍ʯఏࣔ͢Δɽ Ұൠʹʮྑ͍͍ʯͰ͋Εɼճऀࢥߟ͕ଅਐ͞ΕɼࢥΘͣ͑ͨ͘ͳΔͷͰ͋Δɽਃ ऀ͕༧උతʹߦͬͨௐࠪͰɼஶ໊ͳ࣭ԠαΠτͷ 1 ͭͰ͋Δ Yahoo!ܙାʹߘ͞Εͨ ࣭ʹɼଟ͘ͷϢʔβ͕ճͨ͘͠ͳΔΑ͏ͳྑ͍࣭͕͋Γɼྑ͍࣭͕ߦΘΕͨ߹ɼ࣭ ऀͱճऀͷؒͰؾ͖͕ͮ͋ͬͨ͜ͱΛࣔࠦ͢Δ͕ٞߦΘΕΔʹ͋Δ͜ͱ͕͏͔͕͑ͨ ʢݚڀۀ [3]ʣ ɽͦ͜Ͱɼຊݚڀ՝Ͱɼ࣭ʹू·ͬͨճ࣭ͷݴޠతಛɼ࣭ऀͱ ճऀͷΠϯλϥΫγϣϯΛੳ͢Δ͜ͱͰɼ࣭ԠαΠτ͔ΒݕࡧτϐοΫʹؔ࿈͢Δʮྑ ͍࣭ʢ͍ʣ ʯΛൃݟ͢Δٕज़Λ։ൃ͢Δɽ·ͨɼऩूͨ͠ʮྑ͍͍ʯʹਂֶशΛద༻͠ɼ ҙͷτϐοΫʹରͯ͠ʮྑ͍͍ʯΛࣗಈੜ͢ΔΞϧΰϦζϜͷݕ౼ߦ͏ɽ 5҆ࡈ༐थɾԘོ೭ஶɿ ʮ͍ͷσβΠϯʯ ɼֶܳग़൛ࣾʢ2020ʣ ɽ -
ج൫ݚڀʢ̗ʣ ʢҰൠʣ ̑ ᇶ┙◊✲㸦㹀㸧㸦୍⯡㸧㸳 㸰 ᮏ◊✲ࡢ╔⮳ࡗࡓ⤒⦋࡞ ᮏḍࡣࠊ ᮏ◊✲ࡢ╔⮳ࡗࡓ⤒⦋‽ഛ≧ἣࠊ
㛵㐃ࡍࡿᅜෆእࡢ◊✲ືྥᮏ◊✲ࡢ⨨࡙ࡅࠊࡘ࠸࡚㸯㡫௨ ෆ࡛グ㏙ࡍࡿࡇࠋ ຊݚڀͷணʹࢸͬͨܦҢͱ४උঢ়گ ਃऀɼΣϒใͷ৴པੑஅࢧԉʹؔ͢ΔݚڀΛߦ͖ͬͯͨɽ͜ͷաఔͰɼใਫ਼ࠪʹ ಈػ͚ͮΒΕ͍ͯͳ͍߹ɼใͷ৴པੑΛஅ͢ΔͨΊʹ༗ӹͳใΛఏڙͯ͠ɼϢʔβ ͦΕΒͷใΛ͏·͘׆༻Ͱ͖ͳ͍/͠ͳ͍ͱ͍͏͕໌Β͔ʹͳͬͨʢۀ [11, 10]ʣ ɽҰ ํͰɼߴ࣭ͳใΛऔಘͰ͖ΔΣϒݕࡧϢʔβɼ൷తࢥߟΛͬͯใΛ٬؍తʹಡΈ ղ͜͏ͱ͢ΔଶͱํུΛ༗͍ͯ͠Δ͜ͱ͕໌Β͔ʹͳͬͨʢۀ [7]ʣ ɽ͜ΕΒݟ͔Βɼੜ͖ ͍ͯͨ͘ΊʹඞཁͳΣϒใΛϢʔβ͕औࣺબͰ͖ΔΑ͏ʹͳΔʹɼ ʮ൷తใ୳ࡧʹඞ ཁͱͳΔεΩϧଶΛ্ͤ͞ΔΞϓϩʔν͕ඞཁͰ͋Δʯͱ͍͏ҙࣝʹࢸͬͨɽ ୯ಠͰʑͱߦ͏͜ͱ͕ଟ͍Σϒใ୳ࡧʹ͓͍ͯɼ ࣗͷใ୳ࡧߦಈͷળ͠ѱ͠ռΊΔ ͖Λࢦఠ͞ΕΔػձʹ͍͠ɽͦͷͨΊɼ൷తʹใΛಡΈղͨ͘ΊʹඞཁͱͳΔεΩϧ ଶΛվળ͢Δ͜ͱ͍͠ɽਃऀɼ൷తใ୳ࡧʹඞཁͱͳΔεΩϧΛධՁ͢ΔͨΊ ͷࢦඪͷ։ൃΛߦ͖ͬͯͨʢۀ [8]ʣ ɽݱࡏɼͦΕΒࢦඪΛ༻͍ͯɼ࣮ࡍͷใݕࡧɾӾཡߦಈ ͔ΒεΩϧͷଟՉΛධՁ͢Δख๏Λݚڀ։ൃதͰ͋Δɽຊݚڀ՝ʹ͓͍ͯɼͦΕΒ։ൃதͷ ख๏Λ༻͍ͯɼ ʮεΩϧͷվળΛলͤ͞ɼվળͷͨΊͷ۩ମతͳৼΔ͍Λ͑ΔΠϯλϥΫ γϣϯʯΛઃܭ͢Δͱ͍͏ணʹࢸͬͨɽ ਃऀ͕ߦͬͨ࠷৽ͷݚڀͰɼೝ৺ཧֶʹ͓͚ΔϓϥΠϛϯάޮՌʹண͠ɼ൷తࢥߟ͕Ͱ ͖ΔਓΛ࿈͢ΔϫʔυΛΣϒݕࡧ࣌ʹఏࣔ͢Δ͜ͱͰɼ൷తͳใ୳ࡧߦಈΛ༠ൃͰ͖ΔՄ ೳੑ͕ࣔࠦ͞Εͨʢۀ [5]ʣ ɽ͜ͷ͜ͱ͔Βɼೝ৺ཧֶߦಈܦࡁֶͷݟΛੵۃతʹऔΓࠐΉ͜ ͱͰɼ ʮใਫ਼ࠪଶΛܹ͠ɼ൷తใ୳ࡧʮ༠ൃʯ͢ΔใݕࡧΠϯλϥΫγϣϯʯͱ͍͏ண ʹࢸͬͨɽҰํɼઌͷݚڀͰɼڧ͍৴೦Λ͍࣋ͬͯΔϢʔβʹɼ؇͔ʹߦಈΛଅ͢φοδత Ξϓϩʔν͏·͘ػೳ͠ͳ͍͜ͱ͕ࣔࠦ͞Ε͍ͯΔɽͦͷΑ͏ͳϢʔβʹରͯ͠ɼ൷త ใ୳ࡧͷඞཁੑΛڧ͘ײͤ͡͞Δඞཁ͕͋Δɽ͜ͷ͜ͱ͔Βɼ ʮ൷తใ୳ࡧΛϑΝγϦςʔτ ͢Δʮ͍ʯͷରతఏࣔʯͱ͍͏ணʹࢸͬͨɽ ؔ࿈͢Δࠃ֎ͷݚڀಈͱຊݚڀͷҐஔ͚ͮʹ͍ͭͯ ۙɼ ใݕࡧ ɾ σʔλϚΠχϯάͷͰɼ X. YinΒ͕։ൃͨ͠TruthFinderJ. Pasternack Β͕։ൃͨ͠ Latent Credibility Analysis ͷΑ͏ʹɼใ৴པੑͷࣗಈධՁΞϧΰϦζϜ͕ݚڀ ։ൃ͞Εͭͭ͋Δ6ɽۙͰɼϑΣΠΫχϡʔεͷݕग़ΞϧΰϦζϜΜʹݚڀ։ൃ͞Ε͍ͯ Δ7ɽਤ 1 Ͱࣔͨ͠Α͏ʹɼຊݚڀ՝ͰɼܭࢉػʹΑΔใͷ࣭ධՁɼ࣭ใͷݕग़Ξ ϧΰϦζϜͷෆશੑΛิ͏ͨΊʹɼใӾཡϢʔβͷ൷తใ୳ࡧεΩϧଶͷڧԽΛਤ ΔใΠϯλϥΫγϣϯͷ։ൃʹযΛ͍ͯͯΔɽ ۙɼώϡʔϚϯɾίϯϐϡʔλΠϯλϥΫγϣϯͷͰɼΣϒใͷऔࣺબʹ͔͔ ΔೝόΠΞεੳʹؔ͢Δݚڀ͕ΛूΊ͍ͯΔɽྫ͑ɼMicrosoft Research ͷ R. White ɼΣϒݕࡧ࣌ͷ৻ॏͳҙࢥܾఆΛଅਐ͢ΔʹɼݕࡧτϐοΫʹؔͯ͠ࣄલʹ๊͍͍ͯΔό ΠΞεΛऔΓআ͘Έ͕ඞཁͱड़͍ͯΔ8ɽIBM Research ͷ Liao Βɼࣗͷझʹ͋ͬͨ ใΛ༏ઌతʹӾཡͯ͠͠·͏ʮબతҙʯΛ؇͢ΔͨΊͷใఏࣔख๏Λݚڀ͓ͯ͠ Γɼೝ৺ཧֶతཁૉΛߟྀͨ͠ใΞΫηεγεςϜͷઃܭͷॏཁੑΛઆ͍͍ͯΔ9ɽຊݚڀ՝ ɼ͜ΕΒͷݚڀ͕ࢦఠ͢ΔΛղܾ͢ΔࢼΈͰ͋Δɽ 6J. Pasternack et al.: Latent Credibility Analysis. WWW 2013, pp.1009-1020. 7N. Ruchansky et al.: CSI: A Hybrid Deep Model for Fake News Detection. CIKM 2017, pp.797–806. 8R. White: Beliefs and Biases in Web Search. SIGIR 2013. pp.3-12. 9Q. Liao et al. It Is All About Perspective: An Exploration of Mitigating Selective Exposure with Aspect Indicators. CHI 2015, pp.1439-48. -
ج൫ݚڀʢ̗ʣ ʢҰൠʣ ̒ ᇶ┙◊✲㸦㹀㸧㸦୍⯡㸧㸴 㸱 ᛂເ⪅ࡢ◊✲㐙⾜⬟ຊཬࡧ◊✲⎔ቃ ᮏḍࡣᛂເ⪅㸦◊✲௦⾲⪅ࠊ◊✲ศᢸ⪅㸧ࡢ◊✲ィ⏬ࡢᐇ⾜ྍ⬟ᛶࢆ♧ࡍࡓࡵࠊ ࡇࢀࡲ࡛ࡢ◊✲άືࠊ
◊✲⎔ቃ㸦◊ ✲㐙⾜ᚲせ࡞◊✲タ࣭タഛ࣭◊✲㈨ᩱ➼ࢆྵࡴ㸧ࡘ࠸࡚㸰㡫௨ෆ࡛グ㏙ࡍࡿࡇࠋ ࠕ ࡇࢀࡲ࡛ࡢ◊✲άືࠖࡢグ㏙ࡣࠊ◊✲άືࢆ୰᩿ࡋ࡚࠸ࡓᮇ㛫ࡀ࠶ࡿሙྜࡣࡑࡢㄝ᫂࡞ࢆྵࡵ࡚ࡶࡼ࠸ࠋ ͤ␃ព㡯 1. ◊✲ᴗ⦼㸦ㄽᩥࠊⴭ᭩ࠊ⏘ᴗ㈈⏘ᶒࠊᣍᚅㅮ₇➼㸧ࡣࠊ⥙⨶ⓗグ㍕ࡍࡿࡢ࡛ࡣ࡞ࡃࠊ ᮏ◊✲ィ⏬ࡢᐇ⾜ྍ⬟ᛶࢆㄝ᫂ࡍࡿୖ࡛ࠊࡑࡢ᰿ᣐ࡞ࡿᩥ⊩➼ࡢせ࡞ࡶࡢࢆ㐺ᐅグ ㍕ࡍࡿࡇࠋ 2. ◊✲ᴗ⦼ࡢグ㏙ᙜࡓࡗ࡚ࡣࠊᙜヱ◊✲ᴗ⦼ࢆྠᐃࡍࡿ༑ศ࡞ሗࢆグ㍕ࡍࡿࡇࠋ ࡋ࡚ࠊᏛ⾡ㄽᩥࡢሙྜࡣㄽᩥྡࠊⴭ⪅ྡࠊᥖ㍕ㄅྡࠊᕳྕࡸ㡫➼ࠊⓎ⾲ᖺ㸦すᬺ㸧ࠊ ⴭ᭩ࡢሙྜࡣࡑࡢ᭩ㄅሗࠊ࡞ࠋ 3. ㄽᩥࡣࠊ᪤ᥖ㍕ࡉࢀ࡚࠸ࡿࡶࡢཪࡣᥖ㍕ࡀ☜ᐃࡋ࡚࠸ࡿࡶࡢ㝈ࡗ࡚グ㍕ࡍࡿࡇࠋ 4. ᮏ␃ព㡯㸦ᩳయࡢᩥ᭩㸧ࡣࠊ◊✲ィ⏬ㄪ᭩ࡢసᡂࡣ๐㝖ࡍࡿࡇࠋ ͜Ε·Ͱͷݚڀ׆ಈʢݚڀ߲ͱରԠ͚ͮͯهड़ʣ ͜Ε·ͰਃऀɼใݕࡧɾώϡʔϚϯίϯϐϡʔλΠϯλϥΫγϣϯͷͰɼΣϒใ ͷ৴པੑੳΞϧΰϦζϜ [12]ɼ৴པੑஅΛߦ͏ͨΊͷσʔλϚΠχϯάٕज़ʢۀ [10, 9]ʣ ɼ ৴པੑஅͷͨΊͷݕࡧΠϯλϑΣʔεʢۀ [11, 9]ʣ ɼ৴པੑஅΛߦ͏Ϣʔβͷߦಈɾଶ ಛੑʹؔ͢Δੳʢۀ [7, 8]ʣʹؔ͢ΔݚڀΛߦ͖ͬͯͨɽҎԼͰɼ͜Ε·Ͱͷݚڀ׆ಈͷ͏ ͪɼຊݚڀ՝ʹؔ࿈͢ΔͷΛऔΓ্͛Δɽͳ͓ɼݚڀදऀɼ2013 ͔Β 2015 ʹ͔͚ ͯɼژେֶϦαʔνɾΞυϛχετϨʔλͱͯ͠ݚڀϚωδϝϯτͷઐۀʹैࣄ͍ͯͨ͠ ͨΊɼͦͷظؒݚڀ׆ಈΛதஅ͍ͯͨ͠ɽ ݚڀ߲ 1: ࣗͷใ୳ࡧߦಈΛলɾվળ͢ΔͨΊͷΣϒϒϥβ ݚڀදऀɼϢʔβͷ൷తࢥߟଶͱΣϒ୳ࡧߦಈͱͷؔੳɼ৴ጪੑͷߴ͍Σϒ ใͷ֫ಘࢧԉͷͨΊͷϢʔβߦಈͷཧղʹؔ͢ΔݚڀΛߦ͖ͬͯͨʢۀ [11, 9, 7, 8, 4, 1]ʣ ɽ ͦͷՌͷҰ෦ɼCHIɼCIKMɼHT ͳͲͷτοϓϨϕϧࠃࡍձٞʹ࠾͞Ε͍ͯΔɽຊݚڀ߲ Ͱɼ͜Ε·ͰͷݚڀͰಘͨ൷తใ୳ࡧʹඞཁͱͳΔεΩϧଶʹؔ͢ΔݟΛͱʹɼ ࣗͷ൷తใ୳ࡧߦಈΛলɾվળ͢ΔͨΊͷΠϯλϑΣʔεʹ͍ͭͯݚڀΛߦ͏ɽ ݚڀ߲ 2: φοδΛ༻͍ͨɼใਫ਼ࠪଶΛܹ͢Δݕࡧ݁ՌαϚϦͷੜʢ҉తઆಘʣ ݚڀදऀɼΣϒใͷ৴པੑΛҙ͍ࣝͯ͠ͳ͍ݕࡧϢʔβʹରͯ͠ҙਂ͍ใݕࡧΛ ༠ൃ͢ΔใΠϯλϥΫγϣϯΛ։ൃ͖ͯͨ͠ʢۀ [5, 6, 2]ʣ ɽೝ৺ཧֶͷݟͱใݕࡧͷ ݟΛΈ߹Θͤͨ৽͍͠ݕࡧΠϯλϥΫγϣϯʹؔ͢ΔݚڀՌɼWebDB ϑΥʔϥϜ 2019 ࠷༏लจʢۀ [5]ʣ ACM/IEEE JCDL2020 Vannevar Best Paper Awardʢۀ [2]ʣΛ त͢ΔͳͲɼߴ͍ධՁΛಘͨɽຊݚڀ߲ͰɼಛఆͷݕࡧτϐοΫͰͳ͘෯͍τϐοΫ ͷใݕࡧʹద༻Ͱ͖ΔΑ͏ɼ͜Ε·Ͱ։ൃ͖ͯͨ͠ߦಈ༠ൃͷͨΊͷใΠϯλϥΫγϣϯٕ ज़Λൃలͤ͞ɼߦಈܦࡁֶͷݟऔΓೖΕͭͭɼ൷తใ୳ࡧΛʮ༠ൃʯ͢Δݕࡧ݁Ռα ϚϦͷੜख๏ͷཱ֬Λࢦ͢ɽ ݚڀ߲ 3: ൷తใ୳ࡧΛϑΝγϦςʔτ͢Δʮ͍ʯͷରతఏࣔʢ໌ࣔతઆಘʣ ݚڀදऀɼQA αΠτʹ͓͚Δ࣭ԠΠϯλϥΫγϣϯͷੳʹऔΓΜͰ͓Γɼͦͷ աఔͰɼQA αΠτʹϢʔβʹؾ͖ͮΛ༩͑ΔλΠϓͷ͍͕ଘࡏ͢Δ͜ͱΛ໌Β͔ʹ͠ɼຊ ݚڀ߲Λண͢Δʹࢸͬͨʢۀ [3]ʣ ɽ͜Ε·Ͱɼݚڀදऀɼࣗવݴޠॲཧٕज़/ใݕࡧ ٕज़Λ׆༻͠ɼΣϒใͷ৴པੑஅࢧԉΛߦ͏ͨΊͷใΛϚΠχϯά/ݕࡧ͢ΔΞϧΰϦζ Ϝͷ։ൃΛߦ͖ͬͯͨ͜ͱ͋Γɼࣗવݴޠܗࣜͷʮ͍ʯͷϚΠχϯάϚΠχϯά݁Ռͷ࠷ దͳఏࣔख๏ͷઃܭʹඞཁͳεΩϧेʹ༗͍ͯ͠Δʢۀ [10]ʣ ɽ ݚڀڥ ݚڀදऀɼຊݚڀ՝ʹؔ͢Δ࣮ٞɼ࣮ݧΛߦ͏ͨΊͷेͳεϖʔεΛ༗͍ͯ͠ ΔɽݚڀߦͷͨΊͷઃඋʹ͍ͭͯɼσʔλੳɾݚڀ࣮ࣨݧ༻ͷܭࢉػΛ༗͍ͯ͠Δ͕ɼ Ϣʔβ࣮ݧσʔλղੳΛΑΓ҆ఆతͳڥͰߦ͏ͨΊʹɼຊݚڀܦඅʹͯΞϓϦέʔγϣϯαʔ όͱੳ༻αʔόΛ 1 ͣͭߪೖ͢Δ༧ఆͰ͋Δɽݚڀ߲ 2 ͓Αͼ 3 ͰϨϏϡʔαΠτͷจॻ ίʔύε QA ίʔύεΛͬͨݚڀΛߦ͏༧ఆͰ͋Δ͕ɼใݯͱͳΔσʔλͷҰ෦ʢYahoo! ܙାʣطʹ༗͓ͯ͠Γɼਝʹݚڀ՝ʹऔΓΉ͜ͱ͕ՄೳͰ͋Δɽ -
ʲ̏ɹԠืऀͷݚڀߦೳྗٴͼݚڀڥʢ͖ͭͮʣ ʳ ج൫ݚڀʢ̗ʣ ʢҰൠʣ ̓ ຊ՝Ͱɼใ୳ࡧߦಈͷলΛଅ͢ΠϯλϑΣʔεʢݚڀ߲ 1ʣ൷తใ୳ࡧΛʮ༠ ൃʯ͢Δݕࡧ݁ՌαϚϦੜʢݚڀ߲ 2ʣͷݚڀ։ൃΛߦ͏ͨΊʹɼߦಈܦࡁֶೝ৺ཧֶɼ ڭҭֶͷݟΛ׆༻͢Δɽຊ՝ݚڀදऀͷΈ͔Βߏ͞ΕΔνʔϜͰ࣮ߦ༧ఆͰ͋Δ͕ɼ
ݚڀදऀ͕ॴଐ͢Δ੩Ԭେֶใֶ෦ʹɼߦಈܦࡁֶڭҭֶɼೝ৺ཧֶͷݚڀऀ͕͍ ΔɽͦͷͨΊɼͦΕΒݚڀऀ͔ΒఆظతʹॿݴΛΒ͍ͳ͕Βɼݚڀ՝ΛୡΛࢦ͢ɽ ؔ࿈͢Δݚڀۀ [1] S. Pothirattanachaikul, T. Yamamoto, Y. Yamamoto and M. Yoshikawa: Analyzing the Effects of ”People also ask” on Search Behaviors and Beliefs. Procs. of the 31st ACM Conference on Hypertext and Social Media (HT 2020), pp.101-110, 2020 (ࠪಡ͋Γ). [2] Y. Yamamoto and T. Yamamoto: Personalization Finder: A Search Interface for Identi- fying and Self-controlling Web Search Personalization. Procs. of the 20th ACM/IEEE on Joint Conference on Digital Libraries (JCDL 2020), pp.37-46, 2020 (ࠪಡ͋Γ). [3] ᴡ౻࢙໌, ࢁຊ༞ี:ʮQA αΠτʹ͓͚Δ࣭Ԡʹணͨ͠ؾ͖ͮΛଅ͍͔͚͢ͷੳʯ, ୈ 12 ճσʔλֶͱใϚωδϝϯτʹؔ͢ΔϑΥʔϥϜʢDEIM2020ʣ, 2020ʢࠪಡͳ͠ʣ. [4] S. Pothirattanachaikul, T. Yamamoto, Y. Yamamoto and M. Yoshikawa: Analyzing the Effects of Document’s Opinion and Credibility on Search Behaviors and Belief Dynamics. Procs. of the 28th ACM Conference on Information and Knowledge Management (CIKM 2019), pp.1653-1662, 2019 (ࠪಡ͋Γ). [5] ࢁຊ༞ี, ࢁຊַ༸: ʮ൷తͳΣϒݕࡧΛଅਐ͢ΔΫΤϦϓϥΠϛϯάʯ, ใॲཧֶձ จࢽ: σʔλϕʔε (TOD80), Vol.12, No.1, pp.38-52, 2019ʢࠪಡ͋Γʣ. [6] F. Saito, Y. Shoji and Y. Yamamoto: Highlighting Weasel Sentences for Promoting Critical Information Seeking on the Web. Procs. of the 20th International Conference on Web Information Systems Engineering (WISE 2019), pp.424-440, 2019 (ࠪಡ͋Γ). [7] T. Yamamoto, Y. Yamamoto and S. Fujita: Exploring People’s Attitudes and Behaviors toward Careful Information Seeking in Web Search. Procs. of the 27th ACM Conference on Information and Knowledge Management (CIKM 2018), pp.963-972, 2018 (ࠪಡ͋Γ). [8] Y. Yamamoto, T. Yamamoto, H. Ohshima, and K. Hiroshi: Web Access Literacy Scale to Evaluate How Critically Users Can Browse and Search for Web Information. Procs. of the 10th ACM Conference on Web Science (WebSci 2018), pp.97-106, 2018 (ࠪಡ͋Γ). [9] Y. Yamamoto and S. Shimada: Can Disputed Topic Suggestion Enhance User Consider- ation of Information Credibility in Web Search?. Procs. of the 27th ACM Conference on Hypertext and Social Media (HT 2016), pp.169-177, 2016 (ࠪಡ͋Γ). [10] Y. Yamamoto: Disputed sentence suggestion towards credibility-oriented web search. Procs. of the 14th Asia-Pacific international conference on Web Technologies and Applications (APWeb 2012), pp.34-45, 2012 (Best paper first-runner up) (ࠪಡ͋Γ) . [11] Y. Yamamoto and K. Tanaka: Enhancing credibility judgment of web search results. Procs. of the SIGCHI Conference on Human Factors in Computing Systems (CHI 2011), pp.1235- 1244, 2011 (ࠪಡ͋Γ) . [12] ࢁຊ༞ี, ాதࠀݾ: ʮσʔλରؒͷαϙʔτؔੳʹجͮ͘ Web ใͷ৴ጪੑධՁʯ, ใॲཧֶձจࢽ: σʔλϕʔε (TOD46), Vol.3, No.2, pp.61-79, 2010 (ࠪಡ͋Γ). -
ج൫ݚڀʢ̗ʣ ʢҰൠʣ ̔ ᇶ┙◊✲㸦㹀㸧㸦୍⯡㸧㸶 㸲 ேᶒࡢಖㆤཬࡧἲ௧➼ࡢ㑂Ᏺࡢᑐᛂ㸦බເせ㡿㸲㡫ཧ↷㸧 ᮏḍࡣࠊᮏ◊✲ࢆ㐙⾜ࡍࡿᙜࡓࡗ࡚ࠊ┦ᡭ᪉ࡢྠព࣭༠ຊࢆᚲせࡍࡿ◊✲ࠊಶேሗࡢྲྀᢅ࠸ࡢ㓄៖ࢆᚲせࡍࡿ◊✲ࠊ ⏕⌮࣭Ᏻᑐ⟇ᑐࡍࡿྲྀ⤌ࢆᚲせࡍࡿ◊✲࡞ᣦ㔪࣭ἲ௧➼㸦ᅜ㝿ඹྠ◊✲ࢆ⾜࠺ᅜ࣭ᆅᇦࡢᣦ㔪࣭ἲ௧➼ࢆྵࡴ㸧 ᇶ࡙ࡃᡭ⥆ࡀᚲせ࡞◊✲ࡀྵࡲࢀ࡚࠸ࡿሙྜࠊㅮࡌࡿᑐ⟇ᥐ⨨ࢆࠊ㸯㡫௨ෆ࡛グ㏙ࡍࡿࡇࠋ ಶேሗࢆక࠺ࣥࢣ࣮ࢺㄪᰝ࣭ࣥࢱࣅ࣮ࣗㄪᰝ࣭⾜ືㄪᰝ㸦ಶேᒚṔ࣭ᫎീࢆྵࡴ㸧ࠊᥦ౪ࢆཷࡅࡓヨᩱࡢ⏝ࠊࣄࢺ
㑇ఏᏊゎᯒ◊✲ࠊ㑇ఏᏊ⤌࠼ᐇ㦂ࠊື≀ᐇ㦂࡞ࠊ◊✲ᶵ㛵ෆእࡢ⌮ጤဨ➼࠾ࡅࡿᢎㄆᡭ⥆ࡀᚲせ࡞ࡿㄪᰝ࣭◊ ✲࣭ᐇ㦂࡞ࡀᑐ㇟࡞ࡾࡲࡍࠋ ヱᙜࡋ࡞࠸ሙྜࡣࠊࡑࡢ᪨グ㏙ࡍࡿࡇࠋ ຊݚڀ՝Ͱɼ՝ߦͷͨΊʹΣϒจॻʢQA αΠτɼϨϏϡʔαΠτͷΣϒϖʔ δʣΛऩूɾੳ͢Δɽ͜ΕΒͷσʔλɼݪଇͱͯ͠ɼΣϒ্ʹެ։͞Ε͍ͯΔΦʔϓϯσʔ λΛऩूରͱ͠ɼݸਓใؚ͕·ΕΔͷ༻͠ͳ͍ɽ·ͨɼQA αΠτσʔλͷΑ͏ʹɼα ΠτϙϦγʔʹΑͬͯσʔλͷऩूɾੳ੍͕ݶ͞Ε͍ͯΔͷʹ͍ͭͯɼผ్Πϯλʔωο ταʔϏεϓϩόΠμͱܖΛߦ͍ɼσʔλͷೖखɾੳΛߦ͏ɽݸਓใؚ͕·ΕΔσʔλΛ ༻͢Δ߹ɼݸਓใอޢؔͷ๏ྩʹै͏ɽ ্هσʔλʹՃ͑ɼຊ՝Ͱɼݚڀ࣮ࣨݧΫϥυιʔγϯάΛ௨ͯ͡ɼϢʔβͷΣϒ ݕࡧϩάࢥߟಛੑɼؔ৺ࣄ߲ʹؔ͢ΔΞϯέʔτσʔλͷऩूΛߦ͏ɽ͜ΕΒσʔλͷऔΓѻ ͍ʹ͍ͭͯɼ ʮ੩Ԭେֶʹ͓͚ΔݸਓใอޢϙϦγʔʯʹج͖ͮɼ࠷େݶͷҙΛ͏ɽϩά σʔλɼઐ༻ͷҎ֎͔ΒΞΫηεͰ͖ͳ͍αʔόͰཧɾอଘΛߦ͏ɽͦͷࡍɼݸਓ͕ ಛఆͰ͖ͳ͍Α͏ɼಗ໊ԽΛߦ্ͬͨͰσʔλΛอଘ͢Δɽ ຊ՝ͰݸਓΛಛఆ͢ΔใͷऩूߦΘͳ͍͕ɼݸਓͷࢥߟಛੑݕࡧೳྗʹؔ͢Δใ ͷऩूΛؚΉɽͦͷͨΊɼඞཁʹԠͯ͡େֶͷྙཧҕһձͰͷঝೝΛड͚ͨޙɼௐࠪɾ࣮ݧΛ ࣮ࢪ͢Δɽඃݧऀ͔ΒݸਓใΛಘΔࡍʹɼతެ։ͷൣғɼཧํ๏ʹ͍ͭͯࣄલʹઆ໌ Λߦ͏ɽ·ͨɼඃݧऀ͔Β͍߹Θ͕ͤ͋ͬͨ߹ʹɼ͔ʹ͜ΕʹԠ͡ɼσʔλআʹ Ԡ͡Δɽ࣮ݧڠྗँۚͷࢧ͍ʹඞཁͳݸਓใʹ͍ͭͯɼࣄखଓ͖͕ऴྃ࣍ୈɼഁغΛ ߦ͏ɽ Ξϯέʔτௐ͓ࠪΑͼϢʔβ࣮ݧͰ࣮ݧڠྗऀʹใुΛࢧ͏ࡍʹɼෆʹ͍ใुֹʹ ͳΒͳ͍Α͏ɼ࠷ֹۚಉ༷ͷ࣮ݧͷใुֹΛࢀߟʹใुֹΛઃఆ͢Δɽ -
ج൫ݚڀʢ̗ʣ ʢҰൠʣ ̕ ᇶ┙◊✲㸦㹀㸧㸦୍⯡㸧㸷 㸳 ◊✲ィ⏬᭱⤊ᖺᗘ๓ᖺᗘᛂເࢆ⾜࠺ሙྜࡢグ㏙㡯㸦ヱᙜ⪅ࡣᚲࡎグ㏙ࡍࡿࡇ㸦බເせ㡿㸰㸳㡫ཧ↷㸧㸧 ᮏḍࡣࠊᮏ◊✲ࡢ◊✲௦⾲⪅ࡀ⾜ࡗ࡚࠸ࡿࠊ௧㸱 ᖺᗘࡀ᭱⤊ᖺᗘᙜࡓࡿ⥅⥆◊✲ㄢ㢟ࡢᙜึ◊✲ィ⏬ࠊࡑࡢ◊ ✲ࡼࡗ࡚ᚓࡽࢀࡓ᪂ࡓ࡞▱ぢ➼ࡢ◊✲ᡂᯝࢆグ㏙ࡍࡿࡶࠊᙜヱ◊✲ࡢ㐍ᒎࢆ㋃ࡲ࠼ࠊᮏ◊✲ࢆ๓ᖺᗘᛂເࡍࡿ⌮⏤
㸦◊✲ࡢᒎ㛤≧ἣࠊ⤒㈝ࡢᚲせᛶ➼㸧ࢆ㸯㡫௨ෆ࡛グ㏙ࡍࡿࡇࠋ ヱᙜࡋ࡞࠸ሙྜࡣグ㏙ḍࢆ๐㝖ࡍࡿࡇ࡞ࡃࠊ✵ḍࡢࡲࡲᥦฟࡍࡿࡇࠋ ◊✲✀┠ྡ ㄢ㢟␒ྕ ◊✲ㄢ㢟ྡ ◊✲ᮇ㛫 ᖹᡂ ᖺ ᗘ㹼௧ 㸱ᖺᗘ ᙜึ◊✲ィ⏬ཬࡧ◊✲ᡂᯝ ๓ᖺᗘᛂເࡍࡿ⌮⏤ ݚڀछ໊ ՝൪߸ ݚڀ՝໊ ݚڀظؒ ฏ ʙྩ 3 ॳݚڀܭըٴͼݚڀՌ લԠื͢Δཧ༝