ࣾஂ๏ਓ ిࢠ৘ใ௨৴ֶձTHE INSTITUTE OF ELECTRONICS,INFORMATION AND COMMUNICATION ENGINEERS৴ֶٕใTECHNICAL REPORT OF IEICE.

Web ޿ࠂ͕ӾཡσόΠεʹ༩͑Δ෭࡞༻ͷ࣮ূతௐࠪதౡ߂‫†و‬দඌ༟޾†ਅ༎†㤟ຊೇຊਅೋ†† େࡕେֶେֶӃ৘ใՊֶ‫ڀݚ‬Պɼਧాࢢ
E-mail: †{h-nakajm,h-matsuo,shinsuke,kusumoto}@ist.osaka-u.ac.jp͋Β·͠ ۙ೥ɼWeb ͷϢʔβʹͱͬͯ๬·͘͠ͳ͍ʮ൥Θ͍͠ʯ޿ࠂ͕૿͍͑ͯΔɽྫ͑͹ GIF ΞχϝʔγϣϯΛ༻͍ͨ޿ࠂ΍ɼը໘ͷεΫϩʔϧಈ࡞ʹ௥ै͢Δ޿ࠂͳͲͰ͋Δɽ͜ΕΒͷ޿ࠂ͸ɼίϯςϯπͷಡΈ΍͢͞΍ϢʔβϏϦςΟͷ௿Լͱ͍ͬͨਓ΁ͷӨ‫͘ͳͰ͚ͩڹ‬ɼόοςϦʔফඅྔ΍ϖʔδͷॳ‫ظ‬ϩʔυ࣌ؒɼωοτϫʔΫ௨৴ྔͷ૿Ճͱ͍ͬͨɼӾཡσόΠε΁ͷӨ‫ڹ‬΋গͳ͔Βͣൃੜͤ͞ΔɽҰํͰɼʮ൥Θ͍͠ʯ޿ࠂͷճආΛ໨తͱͨ͠޿ࠂϒϩοΫٕज़΋ී‫͋ͭͭ͠ٴ‬ΔɽԾʹ͋ΒΏΔϢʔβ͕͜ΕΒͷٕज़Λར༻͢Ε͹ɼίϯςϯπͷఏ‫ڙ‬/‫ڗ‬डͱ޿ࠂͷ‫ࣔܝ‬/ӾཡʹΑͬͯ੒Γཱͭ Web ͷΤίγεςϜ͸่յ͢Δ‫ڪ‬Ε͕͋Δɽຊ‫ڀݚ‬ͷ௕‫ظ‬తͳ໨త͸ Web ͷΤίγεςϜͷ࣋ଓͰ͋ΓɼͦͷͨΊͷखஈͱͯ͠Ϣʔβʹड͚ೖΕΒΕ΍͍͢޿ࠂʹ͍ͭͯ‫ݕ‬౼͢Δ͜ͱͰ͋ΔɽຊߘͰ͸ͦͷΑ͏ͳ޿ࠂ͕࣋ͭੑ࣭ͷ͏ͪɼӾཡσόΠεʹ༩͑ΔӨ‫ʹڹ‬ண໨͠ɼͦͷӨ‫ڹ‬ͷఔ౓Λௐࠪ͢ΔɽΩʔϫʔυWeb ޿ࠂɼফඅిྗɼωοτϫʔΫ௨৴ྔɼAdBlockAn Empirical Study on Side Eﬀects by Web Advertisements on Mobile Device
Hiroki NAKAJIMA† , Hiroyuki MATSUO† , Shinsuke MATSUMOTO† , and Shinji KUSUMOTO†† Graduate School of Information Science and Technology, Osaka University Suita
E-mail: †{h-nakajm,h-matsuo,shinsuke,kusumoto}@ist.osaka-u.ac.jp

1. · ͑ ͕ ͖ίγεςϜͷ่յΛॿ௕͢Δ΋ͷͰ͋ΓɼԾʹ͋ΒΏΔϢʔβ͕޿ࠂΛϒϩοΫ͢Ε͹ɼWeb ޿ࠂ‫ʹࡌܝ‬ΑΔऩӹϞσϧ͸੒Web ͸Ӿཡऀʹର͢ΔແঈͰͷ৘ใͷఏ‫ڙ‬ɼ͓Αͼ৘ใఏ‫ڙ‬Γཱͨͳ͘ͳΔɽ࣮ࡍʹɼ޿ࠂϒϩοΫٕज़ͷௐࠪΛߦ͍ͬͯऀʹର͢Δ޿ࠂऩೖʹΑͬͯ੒ΓཱͭɼҰछͷੜଶ‫ܥ‬ʢΤίγ

Δ PageFair ʹΑΔͱɼ޿ࠂϒϩοΫʹΑΔ‫ࡁܦ‬ଛࣦ͸ 2015 ೥εςϜʣΛ‫ܗ‬੒͍ͯ͠Δɽ͢ͳΘͪɼ‫ࡏݱ‬ͷΑ͏ͳແঈ͔ͭख࣌఺Ͱ 220 ԯυϧʹୡ͍ͯ͠Δͱใࠂ͞Ε͍ͯΔ [6]ɽܰʹ৘ใΛऔಘՄೳͳ Web Λଘଓͤ͞ΔͨΊʹ͸ɼWeb ޿ࠂ͸͔ܽͤͳ͍ଘࡏͰ͋Δͱ͍͑Δɽຊ‫ڀݚ‬ͷ௕‫ظ‬తͳ໨త͸ɼWeb ͷΤίγεςϜͷ࣋ଓͰ͋Γɼͦͷखஈͱͯ͠Ϣʔβʹड͚ೖΕΒΕ΍͍͢ Web ޿ࠂʹ͔ͭ͠͠ͳ͕Βɼۙ೥Ͱ͸Ϣʔβʹͱͬͯ๬·͘͠ͳ͍ʮ൥Θ͍ͯ‫ݕ‬౼͢ΔɽͲͷΑ͏ͳ޿ࠂ͕ड͚ೖΕΒΕ΍͍͔͢͸༷ʑ

͍͠ʯWeb ޿ࠂ͕૿Ճͭͭ͋͠Δ [1]ɽྫ͑͹ɼGIF Ξχϝʔͳௐࠪͱ‫ݕ‬౼͕ඞਢͰ͋Δ͕ɼ‫ج‬ຊతʹ͸ҎԼ 2 ఺ͷੑ࣭ΛຬγϣϯΛ༻͍ͨಈ͘޿ࠂ΍ɼը໘ͷεΫϩʔϧಈ࡞ʹ௥ै͢Δͨ͢ͱߟ͑ΒΕΔɽ޿ࠂɼίϯςϯπʹΦʔόʔϨΠ͢Δ޿ࠂͳͲͰ͋Δɽ͞Βʹ͸ΫϦοΫ࠮ٗͷΑ͏ͳѱҙͷ͋Δ޿ࠂ΋গͳ͘ͳ͍ [2]ɽ͜ΕΒͷ޿ࠂ͸ɼίϯςϯπͷಡΈ΍͢͞΍ϢʔβϏϦςΟͷ௿Լ•Ӿཡऀʹ༩͑Δ෭࡞༻͕খ͍͞ʢՄಡੑΛ௿Լͤ͞ͳ͍ɼίϯςϯπʹ༹͚ࠐΉ౳ʣ•ӾཡσόΠεʹ༩͑Δ෭࡞༻͕খ͍͞ͱ͍ͬͨਓ΁ͷӨ‫͘ͳͰ͚ͩڹ‬ɼόοςϦʔফඅྔ΍ϖʔδͷʢόοςϦʔΛফඅ͠ʹ͍͘ɼ௨৴ྔΛ૿Ճͤ͞ʹ͍͘౳ʣॳ‫ظ‬ϩʔυ࣌ؒɼωοτϫʔΫ௨৴ྔͷ૿Ճͱ͍ͬͨɼӾཡσ·ͨ޿ࠂͱ͍͏ಛੑ্ɼҰͭ໨ͷੑ࣭ʹ͍ͭͯ͸‫ޮࣔܝ‬Ռ͕ߴόΠε΁ͷӨ‫ڹ‬΋গͳ͔Βͣൃੜͤ͞Δɽ͍ʢΫϦοΫ͞Ε΍͍͢ʣͱ͍͏‫ͱ఺؍‬ͷτϨʔυΦϑ΋‫ݕ‬౼͜ͷ൥Θ͍͠޿ࠂͷී‫ʹٴ‬൐͍ɼWeb ޿ࠂͷϒϩοΫٕ͢Δඞཁ͕͋Δɽ

ज़ [3]ʙ[5] ͕਺ଟ͘ొ৔ͭͭ͋͠Δɽ޿ࠂϒϩοΫٕज़͸ɼOSຊߘͰ͸Ϣʔβʹड͚ೖΕΒΕ΍͍͢ Web ޿ࠂ͕࣋ͭੑ࣭ϨϕϧͰͷϗετ໊ͷղܾΛ્֐͢Δ΋ͷ [3] ΍ɼWeb ϒϥ΢ͷ͏ͪɼӾཡσόΠε΁ͷӨ‫ʹڹ‬ண໨͠ɼͦͷӨ‫ڹ‬ͷఔ౓Λௐβ্ͰͷϓϥάΠϯͱͯ͠ಈ࡞͢Δ΋ͷ [4], [5] ͳͲɼͦͷ࣮‫ݱ‬ࠪ͢Δɽ۩ମతʹ͸ɼফඅిྗɼϖʔδͷॳ‫ظ‬ϩʔυ࣌ؒɼ͓खஈ͸ଟ‫ʹذ‬ΘͨΔɽ͜ΕΒͷ޿ࠂϒϩοΫٕज़͸ Web ͷΤΑͼωοτϫʔΫ௨৴ྔͷ 3 ͭͷࢦඪʹ͍ͭͯɼWeb ޿ࠂ͋—1—DĞĂƐƵƌŝŶŐŶĞƚǁŽƌŬƚƌĂĨĨŝĐtŚĂƚƚŽŵĞĂƐƵƌĞƌŽǁƐĞƌďĞŚĂǀŝŽƌƐ

ਤ 1 ebay.com ͷτοϓϖʔδ (ࠇ࿮͸޿ࠂ)Γͱͳ͠ͷ৔߹ͦΕͧΕʹ͍ͭͯൺֱΛߦ͏ɽۙ೥Ͱ͸ɼιϑDĞĂƐƵƌŝŶŐŝŶŝƚŝĂůůŽĂĚƚŝŵĞ>ŽĂĚ,dD>WĂƌƐĞKD>ŽĂĚĞǆƚĞƌŶĂů͘͘͘ƌĞƐŽƵƌĐĞƐWĂŐĞůŽĂĚ/ŶŝƚŝĂƚĞĚtĂŝƚĨŽƌϭϬƐĞĐDĞĂƐƵƌŝŶŐƉŽǁĞƌĐŽŶƐƵŵƉƚŝŽŶ;ϭϬƐĞĐͿƐǇŶĐĐŽŶŶĞĐƚŝŽŶƐdŝŵŝŶŐĞǀĞŶƚƐ͘͘͘ŽŵǀĞŶƚ͗ ŽŵǀĞŶƚ͗ΗKDΗůŽĂĚΗŽŶƚĞŶƚ>ŽĂĚĞĚΗƚŝŵĞਤ 2 Web ϖʔδΞΫηε࣌ͷϒϥ΢βͷ‫ڍ‬ಈͱ‫ܭ‬ଌ߲໨τ΢ΣΞͷফඅిྗʹؔ͢Δ‫[ ڀݚ‬7]ʙ[11] ΋਺ଟ࣮͘ࢪ͞Ε͓ͯΓɼফඅిྗ͸ར༻ऀʹͱͬͯؔ৺౓߹͍ͷߴ͍ࢦඪͰ͋Δඇදࣔʹ͢Δͱ͍͑Δɽ͜ΕΒσόΠε΁ͷӨ‫ڹ‬ͷఆྔతͳௐࠪ݁Ռʹ‫ͮج‬·ͨɼAdBlock ͕Ͳͷ޿ࠂΛϒϩοΫ͢Δ͔ɼ͋Δ͍͸ϒ͖ɼϢʔβʹड͚ೖΕΒΕ΍͍͢޿ࠂ͕࣋ͭಛੑ΍ࢦඪʹ͍ͭϩοΫ͠ͳ͍͔͸ɼϑΟϧλΛઃఆ͢Δ͜ͱʹΑΓࢦఆͰ͖Δɽ

ͯٞ࿦͢Δɽຊ‫Ͱڀݚ‬͸ɼAdBlock ΛΠϯετʔϧͨ͠ॳ‫ظ‬ঢ়ଶͰͷϑΟϧ

2. ४උ

2. 1 Web ޿ࠂຊ‫Ͱڀݚ‬͸ Web ϖʔδʹ‫·ؚ‬ΕΔ༷ʑͳ HTML ཁૉͷ಺ɼ޿ࠂऩӹΛ໨తͱͯ͠දࣔ͞ΕΔཁૉΛ Web ޿ࠂͱఆٛ͢Δɽλʢ஫ 1ʣΛ༻͍ͯௐࠪΛߦ͏ɽ

3. ௐ ࠪ ໨ త
3. 1 ௐ ࠪ ಈ ‫ػ‬Web ޿ࠂ͕ӾཡσόΠεʹ༩͑ΔӨ‫͑ߟ͍ͯͭʹڹ‬ΔͨΊɼWeb ޿ࠂʹ͸ɼҎԼͷΑ͏ʹ༷ʑͳछྨ͕ଘࡏ͢Δɽ

ਤ 1 ͷΑ͏ͳ Web ϖʔδ [12] Λߟ͑Δɽਤ 1 ͷ Web ϖʔδόφʔ޿ࠂ: ϖʔδ಺ͷ‫ݻ‬ఆ͞Εͨ࿮಺ʹɼը૾ͳͲΛද্ࣔ͢ʹ͸ɼਤதͷࠇ࿮Ͱࣔ͞ΕΔ޿ࠂ͕‫·ؚ‬Ε͍ͯΔɽ͜ͷ޿Δ޿ࠂࠂ͸ GIF ΞχϝʔγϣϯΛ༻͍ͯಈ͍͍ͯΔͨΊɼCPU ΍ϙοϓΞοϓ޿ࠂ: ϖʔδΛ։͍ͨ࣌ʹɼࣗಈతʹ࠷લ໘ʹදσΟεϓϨΠͳͲͷσόΠεͷফඅిྗΛ૿Ճͤ͞ΔɽҰํͰɼࣔ͞ΕΔ΢Οϯυ΢্ͷ޿ࠂ

AdBlock Λ༻͍Δͱ͜ͷ޿ࠂ͸දࣔ͞Εͳ͘ͳΔɽͦͷͨΊɼϑϩʔςΟϯά޿ࠂ: ϖʔδ্ͷίϯςϯπʹॏͳͬͨঢ়ଶͰ

AdBlock Λ༻͍ͨ৔߹͸༻͍ͳ͍৔߹ʹൺ΂ͯɼ͜ͷϖʔδΛදࣔ͞ΕΔ޿ࠂ

ද͍ࣔͯ͠ΔؒͷӾཡσόΠεͷফඅిྗ͸‫ݮ‬গ͢Δͱߟ͑Βಈը޿ࠂ: ϖʔδ্ͷಈը಺ʹදࣔ͞ΕΔ޿ࠂΕΔɽ͜ΕΒͷ޿ࠂʹ͸͞ΒʹɼGIF ΞχϝʔγϣϯΛ‫ؚ‬Ή΋ͷ΍·ͨɼ޿ࠂཁૉ͕ AdBlock ͷ௨৴ϒϩοΫʹΑͬͯϒϩοϛεΫϦοΫΛ༠ൃ͢Δ΋ͷͳͲ͕͋Γɼ͜ΕΒͷཁૉ͸ෳ߹Ϋ͞Εͨ৔߹ɼӾཡσόΠεͷωοτϫʔΫ௨৴ྔ͸‫ݮ‬গ͢Δ͠ಘΔɽ·ͨɼωΠςΟϒ޿ࠂͱ‫ݺ‬͹ΕΔ΋ͷ΋ଘࡏ͢Δɽ͜ͱߟ͑ΒΕΔɽ͞Βʹɼ޿ࠂཁૉͷμ΢ϯϩʔυ͕ϒϩοΫ͞Ε͸ɼϖʔδ಺ͷίϯςϯπͷҰ෦ͱͯࣗ͠વʹଘࡏ͠ɼϢʔΕΔ͜ͱʹΑΓɼWeb ϖʔδͷॳ‫ظ‬ϩʔυ࣌ؒ΋୹͘ͳΔͱߟβʹετϨεΛ༩͑ͳ͍Α͏ͳ޿ࠂͷ͜ͱͰ͋Δɽ͑ΒΕΔɽҎ্ͷΑ͏ʹɼWeb ޿ࠂͷछྨ͸ଟ‫౉ʹذ‬ΔͨΊɼ͜ΕΒͷ෼ྨΛҰൠԽ͢Δ͜ͱ͸ࠔ೉Ͱ͋Δɽ·ͨɼHTML ͷ͋Δཁૉຊ‫Ͱڀݚ‬͸ɼ͜ͷΑ͏ͳ޿ࠂʹΑΔӾཡσόΠε΁ͷӨ‫͕ڹ‬Ͳͷఔ౓͋Δͷ͔ʹ͍ͭͯௐࠪΛߦ͏ɽ͕ Web ޿ࠂͰ͋Δ͔Ͳ͏͔Λ٬‫؍‬తʹ൑அ͢Δ͜ͱ΋೉͍͠ɽ

3. 2 ௐ ࠪ ߲ ໨ͦ͜Ͱຊ‫Ͱڀݚ‬͸ɼ‫ޙ‬ड़ͷ AdBlock ͕༻͍͍ͯΔϑΟϧλʹ

ຊ‫ڀݚ‬ͷ໨త͸ɼWeb ޿ࠂ͕ӾཡσόΠεʹ༩͑ΔӨ‫ڹ‬ΛΑͬͯϒϩοΫ͞ΕΔཁૉΛ Web ޿ࠂͱΈͳ͠ɼௐࠪΛߦ͏ɽόοςϦʔফඅྔɼϖʔδͷॳ‫ظ‬ϩʔυ࣌ؒɼ͓Αͼωοτ

2. 2 AdBlockϫʔΫ௨৴ྔͷ‫͔఺؍‬Βௐࠪ͢Δ͜ͱͰ͋Δɽͦ͜ͰɼௐࠪΛ

AdBlock [4] ͸ɼWeb ޿ࠂཁૉʹ‫·ؚ‬ΕΔը૾΍ಈըͷμ΢ߦ͏ʹ͋ͨͬͯҎԼͷௐ߲ࠪ໨Λઃఆͨ͠ɽϯϩʔυ௨৴ΛϒϩοΫ͢Δ͜ͱ͕Ͱ͖ΔɼGoogle Chrome ͷ

RQ1: ޿ࠂΛදࣔ͢Δ͜ͱʹΑͬͯɼӾཡσόΠεͷόος֦ு‫ػ‬ೳͰ͋ΔɽAdBlock ͕޿ࠂΛϒϩοΫ͢Δํ๏ʹ͸ɼҎϦʔফඅྔ͕Ͳͷఔ౓มԽ͢Δ͔ɽԼͷ 2 छྨ͕ଘࡏ͢Δɽ

RQ2: ޿ࠂΛදࣔ͢Δ͜ͱʹΑͬͯɼϖʔδͷॳ‫ظ‬ϩʔυ࣌௨৴ϒϩοΫ: Web ޿ࠂཁૉʹ‫·ؚ‬ΕΔը૾౳Λμ΢ϯϩʔ͕ؒͲͷఔ౓มԽ͢Δ͔ɽυ͢ΔͨΊͷ௨৴ΛϒϩοΫ͢Δ
දࣔϒϩοΫ: Web ޿ࠂཁૉͷ CSS ͷϓϩύςΟΛมߋ͠ɼʢ஫ 1ʣɿAcceptable Ads, EasyList, ABP Japanese ﬁlters, AdBlock ‫ࠂܯ‬আ‫ڈ‬Ϧετ—2—;ŵtͿϭϰ͕ϬϬϬᗈ࿌䛒䜚ϭϮ͕ϬϬϬᗈ࿌䛺䛧ϭϬ͕ϬϬϬϴ͕ϬϬϬϲ͕ϬϬϬϰ͕ϬϬϬϮ͕ϬϬϬϬਤ3ফඅిྗͷ‫ܭ‬ଌ݁Ռ (ԣ࣠͸ௐࠪର৅ͷϖʔδΛΞΫηε਺͕ଟ͍ॱʹࠨ͔Βฒ΂ͨ΋ͷ)

ද 1 ޿ࠂ਺ͷ֓ཁ;ŵtͿ߹‫ ܭ‬ฏ‫ۉ‬௨৴ϒϩοΫ͞Εͨ޿ࠂදࣔϒϩοΫ͞Εͨ޿ࠂϭϰ͕ϬϬϬ

1,732 18.2873ϭϯ͕ϬϬϬ

9.2ϭϮ͕ϬϬϬද 2 ফඅిྗͷมԽ͕େ͖͍ϖʔδফඅిྗ (mW)ϗετ໊ϒϩοΫ਺޿ࠂ͋Γ ޿ࠂͳ͠ (มԽ཰%)௨৴දࣔcnzz.com

14,0598,014 (−43)

90ebay.com

136,198,022 (−41)

150mail.ru

105,44

7,976 (−24)

890qq.com105,808,226 (−22)

443instagram.com

8,936

7,401 (−17)

20amazon.com

9,630

8,066 (−16)

650alibaba.com

9,449

8,104 (−14)

440youku.com

11,4259,896 (−13)

51

511

alipay.com

10,642

9,248 (−13)

20wikipedia.org

8,858

7,787 (−12)

0

0

...

...

...

...

...

sohu.com

7,931

8,917 (+12)

92

139google.com

10,546

12,421 (+18)

00

google.com.tw

8,107

10,556 (+30)

00ϭϭ͕ϬϬϬϭϬ͕ϬϬϬϵ͕ϬϬϬϴ͕ϬϬϬᗈ࿌䛒䜚ᗈ࿌䛺䛧ਤ 4 ফඅిྗͷശͻ͛ਤ޿ࠂͳ͠: AdBlock Λ‫ى‬ಈͨ͠ Google Chrome Ͱ‫ܭ‬ଌ޿ࠂ͋ΓͰ͸ɼϒϥ΢βͷσϑΥϧτঢ়ଶͰফඅిྗ౳ͷ‫ܭ‬ଌΛߦ͏ɽ޿ࠂͳ͠Ͱ͸ɼAdBlock Λ༻͍ͯ޿ࠂཁૉͷμ΢ϯϩʔυ΍දࣔΛϒϩοΫͨ͠ঢ়ଶͰ‫ܭ‬ଌΛߦ͍ɼ޿ࠂ͋Γͷ৔߹ͱൺֱͯ͠޿ࠂ͕ӾཡσόΠεʹ༩͑ΔӨ‫ڹ‬Λௐࠪ͢Δɽ֤ௐࠪʹ͓͚Δ۩ମతͳௐࠪखॱ͸ɼҎԼͷ௨ΓͰ͋Δɽ

RQ3: ޿ࠂΛදࣔ͢Δ͜ͱʹΑͬͯɼωοτϫʔΫ௨৴ྔ͕Ͳͷఔ౓มԽ͢Δ͔ɽ

RQ1ʙ3 ʹ‫͍ͯͮج‬ௐࠪΛߦ͍ɼ΋͠ Web ޿ࠂ͕ӾཡσόΠεʹ༩͑ΔӨ‫͕ڹ‬େ͖͍ͷͰ͋Ε͹ɼӾཡσόΠε΁ͷӨ‫ڹ‬͕খ͍͞޿ࠂΛ໛ࡧ͢Δඞཁ͕͋Δͱ‫͑ݴ‬Δɽ΋͠Ө‫͕ڹ‬খ͍͞ͷͰ͋Ε͹ɼWeb ޿ࠂ͕ਓʹ༩͑ΔӨ‫͍ͯͭʹڹ‬΋ௐࠪΛߦ͍ɼʮ൥Θ͍͠ʯ޿ࠂͱͦ͏Ͱͳ͍޿ࠂͷҧ͍Λ໌Β͔ʹ͢Δඞ
ཁ͕͋Δͱ‫͑ݴ‬Δɽ

4. ௐࠪ

4. 1 ௐ ࠪ ํ ๏ຊௐࠪͰ͸લઅͰ‫ͨ͛ڍ‬ௐ߲ࠪ໨ʹճ౴͢ΔͨΊʹɼҎԼͷ

2 छྨͷௐࠪΛߦͬͨɽ޿ࠂ͋Γ: ֦ு‫ػ‬ೳΛΦϑʹͨ͠ Google Chrome Ͱ‫ܭ‬ଌεςοϓ 1: ௐࠪର৅ͷ Web ϖʔδΛ։͖ɼωοτϫʔΫ௨৴ྔΛ‫ܭ‬ଌ͠ͳ͕ΒϖʔδͷϩʔυΛ։࢝͠ɼϩʔυ‫Ͱ·ྃ׬‬ͷ࣌ؒΛ‫ܭ‬ଌ͢Δεςοϓ 2: ϖʔδͷϩʔυ‫͔ྃ׬‬Β 10 ඵ‫ܦ‬աͨ͠‫ޙ‬ɼফඅిྗΛ 10 ඵؒ‫ܭ‬ଌ͢Δεςοϓ 1 Ͱ͸ωοτϫʔΫ௨৴ྔͷ‫ܭ‬ଌΛߦ͍ͳ͕ΒɼϖʔδͷϩʔυΛߦ͏ɽ·ͨɼϩʔυʹ͔͔ͬͨ࣌ؒͷ‫ܭ‬ଌ΋ߦ͏ɽ͜ͷεςοϓͰ͸ɼϖʔδͷϩʔυ։͔࢝Βऴྃ·Ͱͷؒʹফඅిྗ͕େ͖͘૿Ճ͢ΔͨΊɼ޿ࠂͷӨ‫ʹڹ‬ΑΔফඅిྗͷมԽ͕൑ผͰ͖ͳ͍ɽͦͷͨΊɼεςοϓ 1 Ͱ͸ফඅిྗͷ‫ܭ‬ଌ͸ߦΘͳ͍ɽεςοϓ 2 Ͱ͸ϖʔδͷϩʔυऴྃ‫ޙ‬ɼ10 ඵؒ͸ফඅిྗͷ‫ܭ‬ଌΛߦΘͳ͍ɽ͜Ε͸ɼϖʔδͷϩʔυʹΑΔফඅిྗ૿ՃͷӨ‫ڹ‬Λ؇࿨͠ɼফඅిྗ͕҆ఆͨ͠ঢ়ଶͰ‫ܭ‬ଌ͢ΔͨΊͰ͋Δɽϖʔδͷϩʔυ‫͔ྃ׬‬Β 10 ඵ‫ܦ‬աͨ͠‫ޙ‬ɼফඅిྗͷ‫ܭ‬—3—;ŵƐĞĐͿϰϬϬ͕ϬϬϬᗈ࿌䛒䜚ᗈ࿌䛺䛧ϯϬϬ͕ϬϬϬϮϬϬ͕ϬϬϬϭϬϬ͕ϬϬϬϬਤ 5 ॳ‫ظ‬ϩʔυ࣌ؒͷ‫ܭ‬ଌ݁Ռ (ԣ࣠͸ௐࠪର৅ͷϖʔδΛΞΫηε਺͕ଟ͍ॱʹࠨ͔Βฒ΂ͨ΋ͷ);ŵƐĞĐͿIntel Core i5@2.20GHz 2.19GHzɼ8.00GB ͷ RAMɼσΟεϰϬ͕ϬϬϬϓϨΠαΠζ͸ 1, 920 × 1, 080 ϐΫηϧͰ͋Δɽ·ͨɼҎԼͷઃఆΛߦͬͨɽ

ϯϬ͕ϬϬϬ

ϮϬ͕ϬϬϬ

ϭϬ͕ϬϬϬ

•ֶ಺ωοτϫʔΫʹ WiFi Ͱ઀ଓ•ௐࠪʹؔ܎ͷͳ͍ΞϓϦέʔγϣϯΛશͯऴྃ•σΟεϓϨΠͷً౓࠷େ•֤छྨͷௐࠪຖʹ Google Chrome ͷཤྺΛ࡟আ

•

Google Chrome ͷΩϟογϡΛແޮԽ·ͨɼ͜ͷϊʔτύιίϯͷফඅిྗͷ‫ܭ‬ଌ͸ WeMo®Insight

Switch [14] Λ༻͍ͯߦͬͨɽϬᗈ࿌䛒䜚

ਤ6ᗈ࿌䛺䛧ॳ‫ظ‬ϩʔυ࣌ؒͷശͻ͛ਤଌΛ 10 ඵؒߦ͏ɽ
ਤ 2 ͸ɼௐࠪର৅ͷ Web ϖʔδʹΞΫηεͨ͠ࡍͷɼϒϥ΢βͷ‫ڍ‬ಈͱ‫ܭ‬ଌ߲໨Λਤࣔͨ͠΋ͷͰ͋Δɽਤதͷ Pageload initiated ͸ ϖ ʔ δ ͷ ϩ ʔ υ ։ ࢝ ࣌ ఺ ɼDomEgvent:"DOMContentLoaded"͸ϖʔδͷ DOM ཁૉͷϩʔυऴྃ࣌
఺ɼDomEvent:"load"͸ϖʔδͷϩʔυऴྃ࣌఺ΛͦΕͧΕද͍ͯ͠Δɽ·ͨɼMeasuring network traffic ͸ωοτϫʔΫ௨৴ྔΛ‫ܭ‬ଌ͢Δ࣌ؒɼMeasuring initial loadtime ͸ϖʔδͷϩʔυ࣌ؒΛ‫ܭ‬ଌ͢Δ࣌ؒɼMeasuring power
consumption ͸ফඅిྗΛ‫ܭ‬ଌ͢Δ࣌ؒΛͦΕͧΕද͍ͯ͠Δɽຊ‫Ͱڀݚ‬͸ɼ‫ޙ‬ड़ͷௐࠪର৅ͷશϖʔδʹ͍ͭͯɼ্‫ه‬ͷ 2 εςοϓΛ޿ࠂ͋Γ͓Αͼ޿ࠂͳ͠ͷ৔߹ʹ͍֤ͭͯ 1 ճߦͬͨɽ

4. 2 ௐ ࠪ ର ৅ຊௐࠪͰ͸ Alexa [13] Ͱू‫͞ܭ‬Ε͍ͯΔɼ2016 ೥ 9 ݄ 23 ೔࣌఺ͰΞΫηε਺τοϓ 100 ͷϗετͷશ΢ΣϧΧϜϖʔδΛௐࠪର৅ͱͨ͠ɽͨͩ͠ɼΞΫηεͰ͖ͳ͍ϖʔδͳͲ͕‫·ؚ‬Ε͍ͯͨͨΊɼ࣮ࡍͷௐࠪ͸ͦΕΒΛআ͍ͨ 95 ‫ݸ‬ͷϖʔδΛର৅ͱͯ͠ߦͬͨɽ

4. 3 ௐ ࠪ ‫ڥ ؀‬ຊௐࠪΛߦͬͨ‫ڥ؀‬͸ VAIO Pro 13 | mk2ɼWindows10 Proɼ

5. ௐ ࠪ ݁ Ռ
5. 1 ޿ ࠂ ਺ௐࠪΛߦͬͨ 95 ϖʔδʹ͓͍ͯɼAdBlock ʹΑͬͯ௨৴ϒϩοΫ͓ΑͼදࣔϒϩοΫ͞Εͨ޿ࠂͷ਺͸ද 1 ͷ௨ΓͰ͋
Δɽදதͷ߹‫ܭ‬ཝ͸ 95 ϖʔδશͯͷ޿ࠂ਺Λ߹‫ͨ͠ܭ‬΋ͷͰ͋Γɼฏ‫ۉ‬ཝ͸ 1 ϖʔδ͋ͨΓͷ޿ࠂ਺Ͱ͋Δɽ·ͨɼͲͪΒͷछྨͷ޿ࠂ΋‫͍ͳ·ؚ‬ϖʔδͷ਺͸ 24 Ͱ͋ͬͨɽ

5. 2 RQ1(ফඅిྗ) ͷௐࠪ݁Ռ޿ࠂ͋Γͷ৔߹͓Αͼ޿ࠂͳ͠ͷ৔߹ͷௐࠪΛߦͬͨ݁Ռɼ
֤ௐࠪʹ͓͚Δશϖʔδͷফඅిྗͷฏ‫ۉ‬஋͸ਤ 3 ͷΑ͏ʹͳͬͨɽ·ͨɼ͜ΕΒͷ෼෍Λശͻ͛ਤͱͯ͠දͨ͠΋ͷ͕ਤ

4 Ͱ͋Δɽਤͷॎ࣠͸ফඅిྗΛ mW ୯ҐͰදࣔͨ͠΋ͷͰ͋Γɼ޿ࠂ͋Γ͓Αͼ޿ࠂͳ͠͸ͦΕͧΕௐࠪͷछྨΛද͍ͯ͠Δɽਤ 4 ΑΓɼফඅిྗͷதԝ஋ʹ͍ͭͯ͸޿ࠂͳ͠ͷํ͕খ͍͞ͱ͍͏͜ͱ͕෼͔ͬͨɽ·ͨɼ޿ࠂ͋Γͷ৔߹͓Αͼ޿ࠂͳ͠ͷ৔߹ͷফඅిྗʹ͍ͭͯ΢ΟϧίΫιϯͷॱҐ࿨‫ݕ‬ఆΛߦͬͨɽ‫ݕ‬ఆͷ݁Ռɼp ஋
͸ 0.137 ͱͳΓɼ༗ҙਫ४ 5%ͷ΋ͱͰফඅిྗʹ༗ҙ͕ࠩͳ͍ͱ͍͏͜ͱ͕෼͔ͬͨɽ͞Βʹɼ௨৴ϒϩοΫ·ͨ͸දࣔϒϩοΫ͞Εͨ޿ࠂ͕গͳ͘ͱ΋ 1 ͭҎ্͋Δϖʔδʹ͍ͭͯ΋ɼಉ༷ʹফඅిྗʹ͍ͭͯ‫ݕ‬ఆΛߦͬͨɽ‫ݕ‬ఆͷ݁Ռɼp ஋
͸ 0.128 ͱͳΓɼ༗ҙਫ४ 5%ͷ΋ͱͰফඅిྗʹ༗ҙ͕ࠩͳ͍ͱ͍͏͜ͱ͕෼͔ͬͨɽ

—4—

;DͿϮϱᗈ࿌䛒䜚ᗈ࿌䛺䛧ϮϬϭϱϭϬϱϬ

ਤ 7 ωοτϫʔΫ௨৴ྔͷ‫ܭ‬ଌ݁Ռ (ԣ࣠͸ௐࠪର৅ͷϖʔδΛΞΫηε਺͕ଟ͍ॱʹࠨ͔Βฒ΂ͨ΋ͷ);DͿͱ͔Βɼిྗ‫ܭ‬ଌ࣌ͷϊΠζͰ͋ΔՄೳੑ͕ߴ͍ɽΑΓৄࡉͳϮϱ෼ੳͱ࣮‫ڥ؀ݧ‬ͷվળʹ͍ͭͯ͸ࠓ‫ޙ‬ͷ՝୊Ͱ͋Δɽ

5. 3 RQ2(ϖʔδͷॳ‫ظ‬ϩʔυ࣌ؒ) ͷௐࠪ݁ՌϮϬ޿ࠂ͋Γͷ৔߹͓Αͼ޿ࠂͳ͠ͷ৔߹ͷௐࠪΛߦͬͨ݁Ռɼ֤ௐࠪʹ͓͚Δશϖʔδͷॳ‫ظ‬ϩʔυ࣌ؒ͸ਤ 5 ͷΑ͏ʹͳͬϭϱͨɽ·ͨɼ͜ΕΒͷ෼෍Λശͻ͛ਤͱͯ͠දͨ͠΋ͷ͕ਤ 6 Ͱ
͋Δɽਤͷॎ࣠͸ॳ‫ظ‬ϩʔυ࣌ؒΛ msec ୯ҐͰදࣔͨ͠΋ͷϭϬͰ͋Γɼ޿ࠂ͋Γ͓Αͼ޿ࠂͳ͠͸ͦΕͧΕௐࠪͷछྨΛද͠
͍ͯΔɽͨͩ͠ɼਤ 6 ͸ॳ‫ظ‬ϩʔυ͕࣌ؒ 0msecʙ40000msec

ϱͷൣғͷΈΛද͍ࣔͯ͠Δɽਤ 6 ΑΓɼॳ‫ظ‬ϩʔυ࣌ؒͷதϬԝ஋ʹ͍ͭͯ͸޿ࠂͳ͠ͷ৔߹ͷํ͕খ͍͞ͱ͍͏͜ͱ͕෼ᗈ࿌䛒䜚ᗈ࿌䛺䛧

ਤ 8 ωοτϫʔΫ௨৴ྔͷശͻ͛ਤΑΓৄࡉͳ෼ੳͱͯ͠ɼ޿ࠂΛϒϩοΫͨ͠ࡍͷ֤ϖʔδʹ͓͚ΔফඅిྗͷมԽ཰ҰཡΛද 2 ʹࣔ͢ɽදதͷϗετ໊͸ফඅిྗͷมԽ཰Ͱঢॱʹฒͼସ͑ΒΕ͓ͯΓɼมԽ཰͕

±10%Ҏ্มԽͨ͠΋ͷͷΈ͕ൈਮ͞Ε͍ͯΔɽ·ͨɼAdBlockʹΑΔ௨৴ͱදࣔϒϩοΫͷ਺΋ซ‫͞ه‬Ε͍ͯΔɽ
޿ࠂΛϒϩοΫ͢Δ͜ͱʹΑͬͯɼ10 ݅ͷϖʔδ͕ 10%Ҏ্ফඅిྗ͕࡟‫͞ݮ‬Ε͍ͯΔɽಛʹ cnzz.com ͱ ebay.com Ͱ͸໿൒෼ۙ͘ͷిྗ͕࡟‫͞ݮ‬Ε͍ͯͨɽ͜ΕΒ 10 ݅ͷϖʔδΛ໨ࢹͰ֬ೝͨ͠ͱ͜Ζɼwikipedia.org Ҏ֎ͷϖʔδʹ͸ϖʔδΞΫηε࣌ͷσΟεϓϨΠදࣔൣғ಺ʹ Flash ΍ GIF ΞχϝʔγϣϯΛ༻͍ͨಈը޿ࠂ͕‫·ؚ‬Ε͍ͯͨɽ͜ͷಈը޿ࠂ͕ফඅిྗͷมԽʹେ͖͘‫د‬༩͍ͯͨ͠ͱߟ͑ΒΕΔɽ·ͨɼ޿ࠂͷϒϩοΫ਺ͱফඅిྗͷมԽ཰ʹ͸େ͖ͳ૬ؔ͸‫ݟ‬ΒΕͳ͔ͬͨɽ্‫ه‬ͷಈը޿ࠂͷࣄྫʹ‫ݟ‬ΒΕΔΑ͏ʹɼফඅిྗͷมԽ͸޿ࠂͷछྨ΍ੑ࣭͕‫د͘ڧ‬༩͓ͯ͠Γɼ୯ͳΔϒϩοΫͷ਺͚ͩͰ͸൑அ͕Ͱ͖ͳ͍ͱߟ͑ΒΕΔɽड͚ೖΕΒΕ΍͍͢޿ࠂͷੑ࣭Λߟ͑ΔͨΊʹ͸ɼ਺͚ͩͰͳ࣭͘Λߟྀͨ͠‫ݕ‬౼͕ඞཁͰ͋Δͱ͍͑Δɽ͞Βʹɼ3 ݅ͷϖʔδ͸ϒϩοΫʹΑͬͯిྗ͕ 10%Ҏ্૿Ճ͍ͯͨ͠ɽ޿ࠂ͕ଘࡏ͠ͳ͍ google ͕ 2 ݅‫·ؚ‬Ε͍ͯΔ͔ͬͨ͜ɽ·ͨɼ޿ࠂ͋Γͷ৔߹͓Αͼ޿ࠂͳ͠ͷ৔߹ͷॳ‫ظ‬ϩʔυ࣌ؒʹ͍ͭͯ΢ΟϧίΫιϯͷॱҐ࿨‫ݕ‬ఆΛߦͬͨɽ‫ݕ‬ఆͷ݁Ռɼp ஋͸ 0.379 ͱͳΓɼ༗ҙਫ४ 5%ͷ΋ͱͰॳ‫ظ‬ϩʔυ࣌ؒʹ༗ҙ͕ࠩͳ͍ͱ͍͏͜ͱ͕෼͔ͬͨɽ͞Βʹɼ௨৴ϒϩοΫ·ͨ͸දࣔϒϩοΫ͞Εͨ޿ࠂ͕গͳ
͘ͱ΋ 1 ͭҎ্͋ΔαΠτʹ͍ͭͯ΋ɼಉ༷ʹॳ‫ظ‬ϩʔυ࣌ؒʹ͍ͭͯ‫ݕ‬ఆΛߦͬͨɽ‫ݕ‬ఆͷ݁Ռɼp ஋͸ 0.261 ͱͳΓɼ༗ҙਫ४ 5%ͷ΋ͱͰॳ‫ظ‬ϩʔυ࣌ؒʹ༗ҙ͕ࠩͳ͍ͱ͍͏͜ͱ͕෼͔ͬͨɽͳ͓ɼ޿ࠂͳ͠ͷ৔߹ͷॳ‫ظ‬ϩʔυ͕࣌ؒ޿ࠂ͋Γͷ৔߹ΑΓ୹͍ϖʔδ͸ 66 ‫͋ݸ‬Γɼͦͷ಺޿ࠂ͋Γͷ৔߹ͷ 10%Ҏ্୹͍ϖʔδ͸ 50 ‫ͨͬ͋ݸ‬ɽ

5. 4 RQ3(ωοτϫʔΫ௨৴ྔ) ͷௐࠪ݁Ռ޿ࠂ͋Γͷ৔߹͓Αͼ޿ࠂͳ͠ͷ৔߹ͷௐࠪΛߦͬͨ݁Ռɼ֤ௐࠪʹ͓͚ΔωοτϫʔΫ௨৴ྔ͸ਤ 7 ͷΑ͏ʹͳͬͨɽ·ͨɼ͜ΕΒͷ෼෍Λശͻ͛ਤͱͯ͠දͨ͠΋ͷ͕ਤ 8 Ͱ͋Δɽਤͷॎ࣠͸ωοτϫʔΫ௨৴ྔΛ MB ୯ҐͰදࣔͨ͠΋ͷͰ͋Γɼ޿ࠂ͋Γ͓Αͼ޿ࠂͳ͠͸ͦΕͧΕௐࠪͷछྨΛදͯ͠
͍Δɽਤ 8 ΑΓɼωοτϫʔΫ௨৴ྔͷதԝ஋ʹ͍ͭͯ͸޿ࠂͳ͠ͷ৔߹ͷํ͕খ͍͞ͱ͍͏͜ͱ͕෼͔ͬͨɽ·ͨɼ޿ࠂ͋Γͷ৔߹͓Αͼ޿ࠂͳ͠ͷ৔߹ͷωοτϫʔΫ௨৴ྔʹ͍ͭͯ΢ΟϧίΫιϯͷॱҐ࿨‫ݕ‬ఆΛߦͬͨɽ‫ݕ‬ఆͷ݁Ռɼp ஋͕

0.395 ͱͳΓɼ༗ҙਫ४ 5%ͷ΋ͱͰωοτϫʔΫ௨৴ྔʹ༗ҙ
—5—͕ࠩͳ͍ͱ͍͏͜ͱ͕෼͔ͬͨɽ

ߦͬͨ݁Ռɼফඅిྗʹ͍ͭͯ͸‫ݸ‬ʑͷϖʔδʹΑΔ͕ࠩେ͖ͳ͓ɼ޿ࠂͳ͠ͷ৔߹ͷωοτϫʔΫ௨৴ྔ͕޿ࠂ͋Γͷ͔ͬͨ΋ͷͷɼશମͱͯ͠େ͖ͳࠩ͸ͳ͍ͱ͍͏͜ͱ͕෼͔ͬ

৔߹ΑΓগͳ͍ϖʔδ͸ 70 ‫͋ݸ‬Γɼͦͷ಺޿ࠂ͋Γͷ৔߹ͷ

ͨɽ·ͨɼϖʔδͷॳ‫ظ‬ϩʔυ࣌ؒʹ͍ͭͯ΋Ұ෦ͷϖʔδͰ

10%Ҏ্গͳ͍ϖʔδ͸ 29 ‫ͨͬ͋ݸ‬ɽ͸େ͖ͳ͕͕ࠩ͋ͬͨɼͦΕ΄Ͳࠩͷͳ͍ϖʔδ΋ଟ͔ͬͨɽ

6. ٞ࿦6. 1 ௐࠪ݁Ռͷߟ࡯ωοτϫʔΫ௨৴ྔʹ͍ͭͯ͸ɼશମతʹ‫ݮ‬গ͍ͯ͠Δ΋ͷͷ౷‫ܭ‬తʹ༗ҙͳࠩ͸‫ݟ‬ΒΕͳ͔ͬͨɽ͜ΕΒͷ݁Ռ͔ΒɼWeb ޿ࠂ͕ӾཡσόΠεʹ༩͑ΔӨ‫ڹ‬͸ௐࠪ݁Ռ͔ΒɼWeb ޿ࠂʹΑΔӾཡσόΠεͷফඅిྗ΁ͷେ͖͍ͱ͸‫͕ͱ͜͏͍ͱ͍ͳ͑ݴ‬෼͔ͬͨɽ͔͠͠ɼWeb ޿ࠂӨ‫ڹ‬͸ɼAlexa ͕ू‫͍ͯ͠ܭ‬ΔΞΫηε਺τοϓ 100 ͷϖʔδ͕ͦΕΛӾཡ͍ͯ͠Δਓʹ༩͑ΔӨ‫͍ͯͭʹڹ‬͸෼͔͍ͬͯͳͰ͸େ͖͘ͳ͍ͱ͍͏஌‫͕ݟ‬ಘΒΕͨɽͨͩ͠ɼ޿ࠂΛϒϩο͍ɽࠓ‫ޙ‬͸ௐࠪର৅΍ௐࠪ‫Ͳͳڥ؀‬Λ‫ݟ‬௚্ͨ͠ͰɼWeb ޿ࠂΫ͢Δ͜ͱʹΑͬͯফඅిྗ͕ 10%Ҏ্‫ݮ‬গͨ͠ϖʔδ͕ 10͕ӾཡσόΠε͚ͩͰͳ͘ɼਓʹ༩͑ΔӨ‫͍ͯͭʹڹ‬΋ௐࠪ͢‫͋ݸ‬ΔͨΊɼ‫ݸ‬ʑͷϖʔδʹΑͬͯ͸͕ࠩେ͖͍΋ͷ΋ଘࡏ͢Δ༧ఆͰ͋ΔɽΔͱߟ͑ΒΕΔɽϖʔδͷॳ‫ظ‬ϩʔυ࣌ؒʹ͍ͭͯ͸ɼ޿ࠂͷ༗ແʹ͸͋·ΓӨ‫͞ڹ‬Εͳ͍ͱ͍͏݁Ռ͕ಘΒΕͨɽ͔͠͠ɼ޿ࠂΛϒϩοΫ
͢Δ͜ͱʹΑͬͯॳ‫ظ‬ϩʔυ͕࣌ؒ 10%Ҏ্୹͘ͳΔϖʔδ͕

50 ‫͋ݸ‬ΔͨΊɼফඅిྗͷ৔߹ͱಉ༷ʹ‫ݸ‬ʑͷϖʔδʹΑΔ͕ࠩେ͖͍ͱߟ͑ΒΕΔɽωοτϫʔΫ௨৴ྔʹ͍ͭͯ΋ɼ޿ࠂʹΑΔӨ‫ڹ‬͸খ͍͞ͱ͍͏݁Ռͱͳͬͨɽ͔͠͠ɼ޿ࠂͳ͠ͷ৔߹ͷωοτϫʔΫ௨৴ྔ͕޿ࠂ͋Γͷ৔߹ΑΓ΋‫ݮ‬গͨ͠ϖʔδ͕ 70 ‫͋ݸ‬ΔͨΊɼӨ‫ڹ‬͸খ͍͞ͳ͕Β΋શମతʹ‫ݮ‬গ͢Δ܏޲Ͱ͋Δͱߟ͑ΒΕΔɽ্‫ه‬ͷΑ͏ʹ޿ࠂʹΑΔӾཡσόΠε΁ͷӨ‫·͕͋ڹ‬Γ‫ݟ‬ΒΕͳ͔ͬͨ‫ݪ‬Ҽͷ 1 ͭͱͯ͠ɼௐࠪର৅ͷબఆํ๏͕‫͛ڍ‬ΒΕΔɽࠓճͷௐࠪର৅ʹ͸ Google ‫ܥ‬ͷϖʔδ͕ 19 ‫·ؚݸ‬Ε͍ͯΔͳͲɼ޿ࠂ͕গͳ͍ɼ͋Δ͍͸‫·ؚ‬Ε͍ͯͳ͍ϖʔδ΋ଟ͋ͬͨ͘ɽͦͷͨΊɼ޿ࠂʹΑΔӾཡσόΠε΁ͷӨ‫ݱ͕ڹ‬Εʹ͔ͬͨ͘ͱߟ͑ΒΕΔɽ

6. 2 ଥ౰ੑ΁ͷ‫ڴ‬Җຊ‫͚͓ʹڀݚ‬Δௐࠪର৅ʹ͸޿ࠂ͕ଘࡏ͠ͳ͍ɼ͋Δ͍͸গͳ͍ϖʔδ΋‫·ؚ‬Ε͍ͯΔɽͦͷͨΊɼௐࠪ݁Ռʹ͸޿ࠂͷӨ‫ͱڹ‬͸‫͍ͳ͑ݴ‬΋ͷ΋‫·ؚ‬Ε͍ͯΔɽຊௐࠪͰ༻͍ͨϊʔτύιίϯ͸Մೳͳ‫ݶ‬ΓௐࠪʹӨ‫ڹ‬Λ༩͑ͳ͍Α͏ʹઃఆͨ͠ɽ͔͠͠ɼશͯͷ‫ػ‬ೳΛ੍‫͢ޚ‬Δ͜ͱ͸Ͱ͖ͳ͍ͨΊɼௐࠪதͷ༧‫͍ͳ͠ظ‬ಈ࡞ʹΑͬͯௐࠪ݁Ռ͕Ө‫ڹ‬Λड͚ΔՄೳੑ͕͋Δɽຊ‫Ͱڀݚ‬͸ AdBlock ͷϑΟϧλʹΑͬͯϒϩοΫ͞ΕΔ΋ͷΛ޿ࠂͱΈͳͯ͠ௐࠪΛߦ͕ͬͨɼAdBlock ʹΑͬͯϒϩοΫ͞Εͳ͍޿ࠂ΋ଘࡏ͢Δɽຊ‫Ͱڀݚ‬͸ɼͦͷΑ͏ͳ޿ࠂͷӨ‫ڹ‬͸‫ܭ‬ଌͰ͖͍ͯͳ͍ɽ޿ࠂ΋‫ؚ‬Ίͨ Web ϖʔδ্ͷίϯςϯπ͸ɼϖʔδʹΞΫηεͨ͠೔࣌ʹΑͬͯมΘΔՄೳੑ͕͋Δɽຊ‫Ͱڀݚ‬͸ͦͷӨ‫ڹ‬Λߟྀ͍ͯ͠ͳ͍͕ɼશͯͷௐࠪ͸ಉ೔தʹߦͬͨɽ

7. ͋ ͱ ͕ ͖ຊ‫Ͱڀݚ‬͸ɼWeb ޿ࠂ͕ͦΕΛӾཡ͍ͯ͠ΔσόΠεʹ༩͑ΔӨ‫͍ͯͭʹڹ‬ɼσόΠεͷফඅిྗ΍ϖʔδͷॳ‫ظ‬ϩʔυ࣌ؒɼωοτϫʔΫ௨৴ྔͷ‫͔఺؍‬ΒௐࠪΛߦͬͨɽAlexa ͕ूँࣙ ຊ‫ڀݚ‬͸ɼՊֶ‫ڀݚ‬අॿ੒ࣄ‫ۀ‬ʢ‫ج‬൫‫ ڀݚ‬S JP25220003ɼ
‫ج‬൫‫ ڀݚ‬B JP16H02908ɼएख‫ ڀݚ‬B JP26730155ʣͷॿ੒ΛಘͯߦΘΕͨɽจ

‫ݙ‬[1] Viktor Krammer. An eﬀective defense against intrusive webadvertising. In Sixth Annual Conference on Privacy, Security and Trust, PST ’08, pp. 3–14, October 2008.
[2] Zhou Li, Kehuan Zhang, Yinglian Xie, Fang Yu, and XiaoFeng Wang. Knowing your enemy: Understanding anddetecting Malicious web advertising. In Proceedings of the2012 ACM Conference on Computer and Communications
Security, CCS ’12, pp. 674–686, New York, USA, 2012.
[3] AdAway. https://adaway.org/.
[4] Adblock. https://chrome.google.com/webstore/detail/ adblock/gighmmpiobklfepjocnamgkkbiglidom?hl=ja.
[5] μBlock. https://chrome.google.com/webstore/detail/ublock/epcnnfbjfcgphgdmggkamkmgojdagdnn?hl=ja.
[6] The cost of ad blocking. https://downloads.pagefair.com/
wp-content/uploads/2016/05/2015_report-the_cost_of_ad_blocking.pdf.
[7] Ding Li, Yingjun Lyu, Jiaping Gui, and William G. J. Halfond. Automated energy optimization of http requests formobile applications. In Proceedings of the 38th International Conference on Software Engineering, ICSE ’16, pp.
249–260, New York, USA, 2016.
[8] Phillip Stanley-Marbell, Virginia Estellers, and Martin Rinard. Crayon: Saving power through shape and color approximation on next-generation displays. In Proceedings ofthe Eleventh European Conference on Computer Systems,EuroSys ’16, pp. 11:1–11:17, New York, USA, 2016.
[9] Ding Li and William G. J. Halfond. An investigation into
energy-saving programming practices for android smartphone app development. In Proceedings of the 3rd International Workshop on Green and Sustainable Software,
GREENS ’14, pp. 46–53, New York, USA, 2014.
[10] Ding Li, Angelica Huyen Tran, and William G. J. Halfond.
Making web applications more energy eﬃcient for OLED
smartphones. In Proceedings of the 36th International Conference on Software Engineering, ICSE ’14, pp. 527–538,
New York, USA, 2014.
[11] Abram Hindle. Green mining: A methodology of relating software change to power consumption. In Proceedingsof the 9th IEEE Working Conference on Mining Software
Repositories, MSR ’12, pp. 78–87, Piscataway, NJ, USA,2012.
[12] eBay. http://www.ebay.com/.
[13] Alexa. http://www.alexa.com/.
[14] WeMo®Insight Switch. http://www.belkin.com/us/p/PF7C029/.

‫͍ͯ͠ܭ‬ΔΞΫηε਺τοϓ 100 ͷϖʔδΛର৅ͱͯ͠ௐࠪΛ—6—