LINE Call: 動画再生品質改善の事例紹介 / LINE Call: A Case Study on Improving Video Playback Quality

-*/&$BMM "$BTF4UVEZPO*NQSPWJOH7JEFP1MBZCBDL2VBMJUZ -*/&1-64 7P*11MBUGPSN2VBMJUZ%FW 4BOHIZVO -FF

*OUSPEVDUJPO 7JEFPQMBZCBDLRVBMJUZUSFOEBOBMZTJT $POHFTUJPO$POUSPMBOE*NQSPWFNFOUT 3FTVMUTBOE'VUVSF XPSL "HFOEB

)PXOFUXPSLDPOEJUJPOTBGGFDU-*/&$BMM *OUSPEVDUJPO

-*/&$BMM ⎯ DBMM HSPVQDBMM NFFUJOH ʜ ⎯ "VEJPPOMZDBMMBOEWJEFPDBMM ⎯
4DSFFOTIBSJOHBOEXBUDIUPHFUIFS 1SPWJEFTWBSJPVTGFBUVSFT (MPCBMQPQVMBSSFBMUJNFDPNNVOJDBUJPOTFSWJDF 0VSHPBMDBMMRVBMJUZ ⎯ 0OHPJOHUFDIOJDBMJNQSPWFNFOUT

/FUXPSLBEBQUBUJPO "OJNQPSUBOULFZUP-*/&$BMM2VBMJUZ $BQUVSF.FEJB &ODPEFBOE 1BDLFUJ[F.FEJB 5SBOTNJU1BDLFUT PWFSUIF*OUFSOFU 3FDFJWFBOE %FDPEF1BDLFUT 1MBZ.FEJB
⎯ .FEJBJTTFOUBTQBDLFUT CVUEFMBZTBOEMPTTFTDBOPDDVS ⎯ *OUFSBDUJWFSFBMUJNFTFSWJDFEFMBZTFOTJUJWF ⎯ /FFEUPBEBQUGBTUUPOFUXPSLDPOEJUJPOT 3FRVJSFTSFBMUJNFOFUXPSLBEBQUBUJPOGPSRVBMJUZ

$POHFTUJPODPOUSPM ⎯ 0WFSMPBEFEOFUXPSLOPEFTPSMJOLTJOQVUSBUFPVUQVUSBUF ⎯ $BVTFTEFMBZ BOE QBDLFUMPTT ⎯ $POHFTUJPO DPOUSPM
JT SFRVJSFE GPS DBMM RVBMJUZ 8IBUJTUIFOFUXPSLDPOHFTUJPO *NQPSUBODFPGOFUXPSLDPOHFTUJPODPOUSPM 4PVSDF %FTUJOBUJPO *OQVUSBUF 0VUQVUSBUF *ODSFBTFRVFVFJOHEFMBZ %SPQQBDLFU /FUXPSLRVFVF

8IBUXFGPVOEBOEXIZJUIBQQFOT 7JEFPQMBZCBDLRVBMJUZUSFOEBOBMZTJT

7JEFP'14 ⎯ .FUSJDTSFMBUFEUPWJEFPGSFF[JOH BOEQMBZCBDLTNPPUIOFTT ⎯ )JHIBUUIFCFHJOOJOHPGFBDINPOUI ESPQUPXBSEUIFFOE BOESFDPWFSTBHBJO ⎯ 5IJTQBUUFSOSFQFBUTFWFSZNPOUI
JO TPNF DPVOUSJFT 7JEFPEFDPEFEGSBNFTQFSTFDPOE 5SFOEGSPNUIFCFHJOOJOHPGUIFNPOUIUPUIFFOEPGUIFNPOUI "WFSBHF7JEFP'14GSPN-*/&DBMM +1 "WFSBHF7JEFP'14GSPN-*/&DBMM 5)

7JEFPQBDLFUMPTT ⎯ .FUSJDTUIBUBGGFDU7JEFPQMBZCBDL ⎯ 4BNF QBUUFSO BT7JEFP'14 ⎯ *OEJDBUFTUIBU/FUXPSL TUBUVT
JT DIBOHJOH 3BUFPGWJEFPQBDLFU MPTT 5SFOEGSPNUIFCFHJOOJOHPGUIFNPOUIUPUIFFOEPGUIFNPOUI "WFSBHF7JEFPNFEJBQBDLFUMPTTSBUFGSPN-*/&DBMM +1

*ODSFBTJOHUPXBSETUIFFOEPGUIFNPOUI #ZOFUXPSLUZQF $PNQBSJTPOCFUXFFONPCJMFOFUXPSLBOE8*'*OFUXPSL DPOTJTUFOUQBUUFSOGPSBNPOUI 8*'*r 8*'*DBMMT
%":4 "WFSBHFOFUXPSLQBDLFUMPTTGSPN-*/&DBMM +1 (( %":4 "WFSBHFOFUXPSLQBDLFUMPTTGSPN-*/&DBMM +1 8*'*8*'* .PCJMFr .PCJMFDBMMT

4MJHIU JODSFBTFUSFOE #ZNFEJBUZQF "VEJPPOMZDBMMT $PNQBSJTPOCFUXFFOBVEJPPOMZDBMMBOEWJEFPDBMM 4JHOJGJDBOUJODSFBTFUPXBSETUIFFOEPGUIFNPOUI 7JEFPDBMMT
%":4 "WFSBHFOFUXPSLQBDLFUMPTTGSPN-*/&DBMM +1 (( %":4 "WFSBHFOFUXPSLQBDLFUMPTTGSPN-*/&DBMM +1 ((

#JUSBUFMJNJU ⎯ "QQMZCJUSBUF TQFFE MJNJUBUJPOBGUFSNPCJMFEBUBJTFYIBVTUFE ⎯ %FQFOEJOH POUIFDBSSJFSBOEEBUBQMBO ⎯ #JUSBUFMJNJUBUJPOLCQTdNCQT
FH ⎯ *ODSFBTJOHOVNCFSPGVTFSTXIPIBWFFYIBVTUFEUIFJSEBUBRVPUB 6TFEVQNPOUIMZRVPUB 3FBTPOTGPSNPOUIMZQBUUFSOT

8IBU`TUIFQSPCMFN ⎯ -*/&$BMMTVQQPSUTVQUP)%WJEFP SFRVJSFEVQ UP .CQT ⎯ .645BEBQUUPMJNJUFEOFUXPSL ⎯ )PXFWFS
UIFSFJTB DBTFXJUIOPUBEBQUJOHQSPQFSMZ 0DDVSTOFUXPSLDPOHFTUJPO )JHICJUSBUFBOE/FUXPSLMJNJUBUJPOT

8IBUXFEJEUPNBLFJUCFUUFS $POHFTUJPODPOUSPMBOEJNQSPWFNFOUT

• 'PS JOUFSBDUJWFSFBMUJNFNFEJB • d DPODMVEFE • IUUQTEBUBUSBDLFSJFUGPSHHSPVQSNDBU • 1SPEVDFE3'$T
• $POHFTUJPODPOUSPMBMHPSJUINT • /"%" $JTDPTZTUFNT r 3'$ • 4$3F". &SJDTTPO r 3'$ 3.$"5 351.FEJB$POHFTUJPO"WPJEBODF5FDIOJRVFT *&5'XPSLJOHHSPVQ

$$'4 ⎯ 3.$"5ESBGUIUUQTEBUBUSBDLFSJFUGPSHEPDESBGUHXPDLSNDBUDDGT ⎯ 4FOEFSCBTFEDPOUSPM ⎯ "OBMZ[FQBDLFUBSSJWBMQBUUFSOTUISPVHIUIFGFFECBDLNFTTBHF $$'4$POHFTUJPO$POUSPMCBTFEPO'PSXBSEQBUI4UBUVT -*/&DBMM`TDPOHFTUJPODPOUSPMBMHPSJUIN .FEJB4FOEFS
$$'459&3 $$'439&3 .FEJB3FDFJWFS $$'4'FFECBDL "EBQUCZOFUXPSLTUBUVT .FEJB1BDLFUT

$$'40WFSWJFX ⎯ $$'4BOBMZ[FTSFBMUJNFOFUXPSLJOEJDBUPST ⎯ %FUFSNJOFOFUXPSLTUBUFBOEBEKVTUUBSHFUTFOEJOHCJUSBUF ⎯ $MBTTJGZOFUXPSLDPOEJUJPOTJOUPTUBUFT %FUFDUJOHOFUXPSLTUBUVTPOUIFGPSXBSEQBUI )PX$$'4BEBQUTUPUIFOFUXPSL %FGBVMU
5ISPUUMFE $PNQFUJOH 1SPCJOH $$'4 TUBUFT $$'459&3 $$'4 'FFECBDL $$'439&3 'FFECBDL NPOJUPSJOH EVSBUJPO 3FNPWFE CBDLXBSEQBUI JNQBDU 3FDFJWFE 'FFECBDL

5ISPUUMFETUBUF ⎯ $$'4NPOJUPSTJODSFBTJOHQBDLFUEFMBZPWFSUJNF ⎯ %FMBZCBTFE$POUSPM%FMBZLFFQTJODSFBTJOH &YDFFETUISFTIPME ⎯ 5BSHFUTFOEJOHCJUSBUFJTSFEVDFEGPSQSFWFOUJOHGVSUIFSEFMBZPSMPTT 5SJHHFSFEXIFOOFUXPSLDPOHFTUJPOJTEFUFDUFE )PX$$'43FBDUTUP/FUXPSL$POHFTUJPO
#*53"5&%&-": 5*.& 2VFVJOHEFMBZ NT 5BSHFUTFOEJOHCJUSBUF LCQT 5SBOTJUUP 5ISPUUMFETUBUF 4UBSU OFUXPSL DPOHFTUJPO

53"''*$ 5*.& "SFBGPSJNQSPWFNFOU ⎯ /PSNBMMZ DPOHFTUJPOJODSFBTFTEFMBZHSBEVBMMZ UIFODBVTFTQBDLFUMPTT ⎯ #VUPCTFSWFEFOWJSPONFOUTXIFSFMPTTPDDVSTXJUIPVUBOZEFMBZJODSFBTF ⎯
5SBGGJDQPMJDJOH %SPQQBDLFUTJNNFEJBUFMZXIFOFYDFFET ⎯ &YQMBJOTXIZRVBMJUZEFHSBEFTBGUFSVTFSTFYDFFEEBUBMJNJUT *OTPNFDBTFT $$'4GBJMTUPEFUFDUOFUXPSLDPOHFTUJPO 8IFO1BDLFU-PTTIBQQFOTXJUIPVUJODSFBTJOHEFMBZ 1PMJDJOH 53"''*$ 5*.& 5BSHFUSBUF %SPQ

-PTTCBTFEDPOUSPM ⎯ #VUMPTTCBTFEDPOUSPMDBOMFBEUP#JUSBUFTUBSWBUJPO ⎯ 3FEVDFCJUSBUFPOFWFSZQBDLFUMPTTˠ2VBMJUZ HSBEVBMMZEFHSBEF ⎯ 0OMZSFEVDFCJUSBUFXIFOMPTTJTEVFUPPWFSTFOEJOH 3FRVJSFTCPUIEFMBZCBTFEDPOUSPMBOEMPTTCBTFE DPOUSPM
1SFWFOUJOH#JUSBUF4UBSWBUJPO

$PSSFMBUJPO ⎯ 6TF1FBSTPODPSSFMBUJPODPFGGJDJFOU ⎯ .FBTVSFMJOFBSDPSSFMBUJPOCFUXFFOTFUTPGEBUB SBOHFTGSPNUP ⎯ "OBMZ[FXIFUIFSIJHIFSCJUSBUFDBVTFTQBDLFUMPTTSBUF 4PMWFXJUIDPSSFMBUJPODPFGGJDJFOU $PSSFMBUJPOCFUXFFOCJUSBUFBOEMPTTSBUF
4USPOH1PTJUJWF S 8FBL1PTJUJWF S /PDPSSFMBUJPO S -0443"5& #*53"5& #JUSBUF-PTTSBUFDPSSFMBUJPO

4PMVUJPO .FBTVSFUIFDPSSFMBUJPODPFGGJDJFOUTJOSFBMUJNF %FMBZCBTFEUISPUUMFEFUFDUPS -PTTCBTFEUISPUUMFEFUFDUPS $PSSFMBUJPODPFGGJDJFOUTDBMDVMBUPS -0443"5& #*53"5& #JUSBUF-PTTDPSSFMBUJPOXJOEPX /FUXPSLJOEJDBUPSTBOBMZ[FS $$'4'FFECBDL
#JUSBUF -PTTSBUF 2VFSZDPSSFMBUJPODPFGGJDJFOUT -PTTSBUF 2VFVJOHEFMBZ 5ISPUUMFETUBUF

8IBU`TJNQSPWFEBOEXIFSFXF`SFIFBEJOH 3FTVMUTBOE'VUVSFXPSL

7JEFPQBDLFUMPTT ⎯ "DUJWBUFPOBTQFDJGJDEBUFVTJOHTFSWJDFTFUUJOHT ⎯ EFDSFBTFEJO+1 DPNQBSFUIFFOEPGUIFNPOUI 3BUFPGWJEFPQBDLFU MPTTEVSJOHBWJEFPDBMM 2VBMJUZJNQSPWFNFOUTCFGPSFBOEBGUFSOFXGFBUVSFBDUJWBUJPO
"WFSBHF7JEFPNFEJBQBDLFUMPTTSBUFGSPN-*/&DBMM +1 "DUJWBUFEEBUF

7JEFP'14 ⎯ JODSFBTFEJO+1 DPNQBSFUIFFOEPGUIFNPOUI ⎯ *NQSPWFEVTFSFYQFSJFODF 7JEFPEFDPEFEGSBNFTQFSTFDPOEEVSJOHBWJEFPDBMM 2VBMJUZJNQSPWFNFOUTCFGPSFBOEBGUFSOFXGFBUVSFBDUJWBUJPO
"WFSBHF7JEFP'14GSPN-*/&DBMM +1 "DUJWBUFEEBUF

7JEFP'14 ⎯ *NQSPWFEJOTPNFDPVOUSJFTXIFSFOPNPOUIMZQBUUFSO ⎯ JODSFBTFE JO5) DPNQBSF XFFL 7JEFPEFDPEFEGSBNFTQFSTFDPOEEVSJOHBWJEFPDBMM 2VBMJUZJNQSPWFNFOUTCFGPSFBOEBGUFSOFXGFBUVSFBDUJWBUJPO
"WFSBHF7JEFP'14GSPN-*/&DBMM 5) "DUJWBUFEEBUF

7JEFPTFOECJUSBUF ⎯ .FUSJDTGPSWJEFPDMBSJUZ ⎯ EFDSFBTFEJO+1 DPNQBSFUIFFOEPGUIFNPOUI 7JEFPTFOUCJUSBUFEVSJOHBWJEFPDBMM 2VBMJUZJNQSPWFNFOUTCFGPSFBOEBGUFSOFXGFBUVSFBDUJWBUJPO
"WFSBHF7JEFPTFOUCJUSBUFGSPN-*/&DBMM +1 "DUJWBUFEEBUF

'VUVSFXPSL ⎯ 'PVOEVOEFSQFSGPSNBODFBUTPNFOFUXPSL ⎯ 0VUMJFSTXJUICVSTUCJUSBUFCVUOPQBDLFUMPTT ⎯ 'JMUFSPVUMJFSTBOEJNQSPWFBDDVSBDZ 3FNBJOJOHJTTVFT $POUJOVPVTUVOJOHBOEQSFQBSJOH.-CBTFEDPOHFTUJPODPOUSPM ⎯
"MSFBEZVTJOH.-GPSNFEJBRVBMJUZ ⎯ &DIPDBODFMMBUJPO .-"&$ BOEOPJTFTVQQSFTTJPO .-/4 ⎯ "MTPFYQFDUJNQSPWFEQFSGPSNBODFUPOFUXPSLBEBQUBUJPO .-CBTFEDPOHFTUJPODPOUSPM

-*/&1MBOFU ⎯ -JLF-*/&DBMMPS-*/&HSPVQDBMMJOUPZPVSTFSWJDF ⎯ *OTIPSUUJNFBOEMPXDPTU ⎯ 4VQQPSUPQFSBUJPOBTQMBUGPSNTFSWJDF *OUFHSBUFUIFSFBMUJNFDPNNVOJDBUJPOGFBUVSF 3FBMUJNFDPNNVOJDBUJPOQMBUGPSNGSPN-*/&DBMM DBMM6*
(SPVQDBMM6*ʜ 7P*1$PSF $MJFOU 4FSWFS -*/& :PVS6* 7P*1$PSF $MJFOU 4FSWFS :PVSTFSWJDF -*/&1MBOFU 4%, $MPVE 1MBUGPSNJ[F

1MFBTFDPOUBDUVT BCPVU-*/&1MBOFU 5IBOLZPV 4%,%PDVNFOUEPDTMJOFQMBOFUNF &NBJMEM@QMBOFU@IFMQ!MJOFDPSQDPN

LINE Call: 動画再生品質改善の事例紹介 / LINE Call: A Case St...

LINE Call: 動画再生品質改善の事例紹介 / LINE Call: A Case Study on Improving Video Playback Quality

LINEヤフーTech (LY Corporation Tech) PRO

Transcript

-/&$BMM "$BTF4UVEZPONQSPWJOH7JEFP1MBZCBDL2VBMJUZ -/&1-64 7P11MBUGPSN2VBMJUZ%FW 4BOHIZVO -FF

OUSPEVDUJPO 7JEFPQMBZCBDLRVBMJUZUSFOEBOBMZTJT $POHFTUJPO$POUSPMBOENQSPWFNFOUT 3FTVMUTBOE'VUVSF XPSL "HFOEB

)PXOFUXPSLDPOEJUJPOTBGGFDU-/&$BMM OUSPEVDUJPO

-*/&$BMM ⎯ DBMM HSPVQDBMM NFFUJOH ʜ ⎯ "VEJPPOMZDBMMBOEWJEFPDBMM ⎯

/FUXPSLBEBQUBUJPO "OJNQPSUBOULFZUP-/&$BMM2VBMJUZ $BQUVSF.FEJB &ODPEFBOE 1BDLFUJ[F.FEJB 5SBOTNJU1BDLFUT PWFSUIFOUFSOFU 3FDFJWFBOE %FDPEF1BDLFUT 1MBZ.FEJB

$POHFTUJPODPOUSPM ⎯ 0WFSMPBEFEOFUXPSLOPEFTPSMJOLTJOQVUSBUFPVUQVUSBUF ⎯ $BVTFTEFMBZ BOE QBDLFUMPTT ⎯ $POHFTUJPO DPOUSPM

8IBUXFGPVOEBOEXIZJUIBQQFOT 7JEFPQMBZCBDLRVBMJUZUSFOEBOBMZTJT

7JEFP'14 ⎯ .FUSJDTSFMBUFEUPWJEFPGSFF[JOH BOEQMBZCBDLTNPPUIOFTT ⎯ )JHIBUUIFCFHJOOJOHPGFBDINPOUI ESPQUPXBSEUIFFOE BOESFDPWFSTBHBJO ⎯ 5IJTQBUUFSOSFQFBUTFWFSZNPOUI

7JEFPQBDLFUMPTT ⎯ .FUSJDTUIBUBGGFDU7JEFPQMBZCBDL ⎯ 4BNF QBUUFSO BT7JEFP'14 ⎯ *OEJDBUFTUIBU/FUXPSL TUBUVT

ODSFBTJOHUPXBSETUIFFOEPGUIFNPOUI #ZOFUXPSLUZQF $PNQBSJTPOCFUXFFONPCJMFOFUXPSLBOE8'*OFUXPSL DPOTJTUFOUQBUUFSOGPSBNPOUI 8'r 8'DBMMT

4MJHIU JODSFBTFUSFOE #ZNFEJBUZQF "VEJPPOMZDBMMT $PNQBSJTPOCFUXFFOBVEJPPOMZDBMMBOEWJEFPDBMM 4JHOJGJDBOUJODSFBTFUPXBSETUIFFOEPGUIFNPOUI 7JEFPDBMMT

#JUSBUFMJNJU ⎯ "QQMZCJUSBUF TQFFE MJNJUBUJPOBGUFSNPCJMFEBUBJTFYIBVTUFE ⎯ %FQFOEJOH POUIFDBSSJFSBOEEBUBQMBO ⎯ #JUSBUFMJNJUBUJPOLCQTdNCQT

8IBU`TUIFQSPCMFN ⎯ -*/&$BMMTVQQPSUTVQUP)%WJEFP SFRVJSFEVQ UP .CQT ⎯ .645BEBQUUPMJNJUFEOFUXPSL ⎯ )PXFWFS

8IBUXFEJEUPNBLFJUCFUUFS $POHFTUJPODPOUSPMBOEJNQSPWFNFOUT

• 'PS JOUFSBDUJWFSFBMUJNFNFEJB • d DPODMVEFE • IUUQTEBUBUSBDLFSJFUGPSHHSPVQSNDBU • 1SPEVDFE3'$T

$$'4 ⎯ 3.$"5ESBGUIUUQTEBUBUSBDLFSJFUGPSHEPDESBGUHXPDLSNDBUDDGT ⎯ 4FOEFSCBTFEDPOUSPM ⎯ "OBMZ[FQBDLFUBSSJWBMQBUUFSOTUISPVHIUIFGFFECBDLNFTTBHF $$'4$POHFTUJPO$POUSPMCBTFEPO'PSXBSEQBUI4UBUVT -*/&DBMM`TDPOHFTUJPODPOUSPMBMHPSJUIN .FEJB4FOEFS

$$'40WFSWJFX ⎯ $$'4BOBMZ[FTSFBMUJNFOFUXPSLJOEJDBUPST ⎯ %FUFSNJOFOFUXPSLTUBUFBOEBEKVTUUBSHFUTFOEJOHCJUSBUF ⎯ $MBTTJGZOFUXPSLDPOEJUJPOTJOUPTUBUFT %FUFDUJOHOFUXPSLTUBUVTPOUIFGPSXBSEQBUI )PX$$'4BEBQUTUPUIFOFUXPSL %FGBVMU

5ISPUUMFETUBUF ⎯ $$'4NPOJUPSTJODSFBTJOHQBDLFUEFMBZPWFSUJNF ⎯ %FMBZCBTFE$POUSPM%FMBZLFFQTJODSFBTJOH &YDFFETUISFTIPME ⎯ 5BSHFUTFOEJOHCJUSBUFJTSFEVDFEGPSQSFWFOUJOHGVSUIFSEFMBZPSMPTT 5SJHHFSFEXIFOOFUXPSLDPOHFTUJPOJTEFUFDUFE )PX$$'43FBDUTUP/FUXPSL$POHFTUJPO

53"''$ 5.& "SFBGPSJNQSPWFNFOU ⎯ /PSNBMMZ DPOHFTUJPOJODSFBTFTEFMBZHSBEVBMMZ UIFODBVTFTQBDLFUMPTT ⎯ #VUPCTFSWFEFOWJSPONFOUTXIFSFMPTTPDDVSTXJUIPVUBOZEFMBZJODSFBTF ⎯

-PTTCBTFEDPOUSPM ⎯ #VUMPTTCBTFEDPOUSPMDBOMFBEUP#JUSBUFTUBSWBUJPO ⎯ 3FEVDFCJUSBUFPOFWFSZQBDLFUMPTTˠ2VBMJUZ HSBEVBMMZEFHSBEF ⎯ 0OMZSFEVDFCJUSBUFXIFOMPTTJTEVFUPPWFSTFOEJOH 3FRVJSFTCPUIEFMBZCBTFEDPOUSPMBOEMPTTCBTFE DPOUSPM

$PSSFMBUJPO ⎯ 6TF1FBSTPODPSSFMBUJPODPFGGJDJFOU ⎯ .FBTVSFMJOFBSDPSSFMBUJPOCFUXFFOTFUTPGEBUB SBOHFTGSPNUP ⎯ "OBMZ[FXIFUIFSIJHIFSCJUSBUFDBVTFTQBDLFUMPTTSBUF 4PMWFXJUIDPSSFMBUJPODPFGGJDJFOU $PSSFMBUJPOCFUXFFOCJUSBUFBOEMPTTSBUF

4PMVUJPO .FBTVSFUIFDPSSFMBUJPODPFGGJDJFOUTJOSFBMUJNF %FMBZCBTFEUISPUUMFEFUFDUPS -PTTCBTFEUISPUUMFEFUFDUPS $PSSFMBUJPODPFGGJDJFOUTDBMDVMBUPS -0443"5& #*53"5& #JUSBUF-PTTDPSSFMBUJPOXJOEPX /FUXPSLJOEJDBUPSTBOBMZ[FS $$'4'FFECBDL

8IBU`TJNQSPWFEBOEXIFSFXF`SFIFBEJOH 3FTVMUTBOE'VUVSFXPSL

7JEFPQBDLFUMPTT ⎯ "DUJWBUFPOBTQFDJGJDEBUFVTJOHTFSWJDFTFUUJOHT ⎯ EFDSFBTFEJO+1 DPNQBSFUIFFOEPGUIFNPOUI 3BUFPGWJEFPQBDLFU MPTTEVSJOHBWJEFPDBMM 2VBMJUZJNQSPWFNFOUTCFGPSFBOEBGUFSOFXGFBUVSFBDUJWBUJPO

7JEFP'14 ⎯ JODSFBTFEJO+1 DPNQBSFUIFFOEPGUIFNPOUI ⎯ *NQSPWFEVTFSFYQFSJFODF 7JEFPEFDPEFEGSBNFTQFSTFDPOEEVSJOHBWJEFPDBMM 2VBMJUZJNQSPWFNFOUTCFGPSFBOEBGUFSOFXGFBUVSFBDUJWBUJPO

7JEFP'14 ⎯ *NQSPWFEJOTPNFDPVOUSJFTXIFSFOPNPOUIMZQBUUFSO ⎯ JODSFBTFE JO5) DPNQBSF XFFL 7JEFPEFDPEFEGSBNFTQFSTFDPOEEVSJOHBWJEFPDBMM 2VBMJUZJNQSPWFNFOUTCFGPSFBOEBGUFSOFXGFBUVSFBDUJWBUJPO

7JEFPTFOECJUSBUF ⎯ .FUSJDTGPSWJEFPDMBSJUZ ⎯ EFDSFBTFEJO+1 DPNQBSFUIFFOEPGUIFNPOUI 7JEFPTFOUCJUSBUFEVSJOHBWJEFPDBMM 2VBMJUZJNQSPWFNFOUTCFGPSFBOEBGUFSOFXGFBUVSFBDUJWBUJPO

'VUVSFXPSL ⎯ 'PVOEVOEFSQFSGPSNBODFBUTPNFOFUXPSL ⎯ 0VUMJFSTXJUICVSTUCJUSBUFCVUOPQBDLFUMPTT ⎯ 'JMUFSPVUMJFSTBOEJNQSPWFBDDVSBDZ 3FNBJOJOHJTTVFT $POUJOVPVTUVOJOHBOEQSFQBSJOH.-CBTFEDPOHFTUJPODPOUSPM ⎯

-/&1MBOFU ⎯ -JLF-/&DBMMPS-/&HSPVQDBMMJOUPZPVSTFSWJDF ⎯ OTIPSUUJNFBOEMPXDPTU ⎯ 4VQQPSUPQFSBUJPOBTQMBUGPSNTFSWJDF OUFHSBUFUIFSFBMUJNFDPNNVOJDBUJPOGFBUVSF 3FBMUJNFDPNNVOJDBUJPOQMBUGPSNGSPN-/&DBMM DBMM6*

1MFBTFDPOUBDUVT BCPVU-*/&1MBOFU 5IBOLZPV 4%,%PDVNFOUEPDTMJOFQMBOFUNF &NBJMEM@QMBOFU@IFMQ!MJOFDPSQDPN

More Decks by LINEヤフーTech (LY Corporation Tech)

Other Decks in Technology

Featured