Python 機械学習ことはじめ at ODC

1ZUIPOػցֶश͜ͱ͸͡Ί ࣉాɹֶ .BOBCV5&3"%" Ұൠࣾஂ๏ਓ1Z$PO+1୅දཧࣄ 0%$JOוా

.BOBCV5&3"%" !UFSBQZPO Ұൠࣾஂ๏ਓ1Z$PO+1୅දཧࣄ ג $.4ίϛϡχέʔγϣϯζ୅ද 1MPOF'PVOEBUJPO"NCBTTBEPS Ұൠࣾஂ๏ਓ1ZUIPOΤϯδχΞҭ੒ਪਐڠձࢼݧ໰୊؂मٴͼίϛϡχςΟࢧԉ 1ZUIPOΤϯδχΞ݉ΞʔΩςΫτ "CPVUNF
.BOBCV5&3"%" ࣉాɹֶ

"CPVUPVSPSHBOJ[BUJPO ೥ʹ֊࣮ࢪ͍ͯ͠Δ1ZUIPOͷΠϕϯτ ೥ʹҰൠࣾஂ๏ਓԽͨ͠ Ұൠࣾஂ๏ਓ1Z$PO+1͸ ຖ೥࣮ࢪͷ1Z$PO+1ͷ࠲௕Λબग़ ஌ࡒ؅ཧ ܖ໿౳Λ࣮ࢪ 1ZUIPO#PPU$BNQΛશࠃʹల։ 1Z$PO+1

1ZUIPO#PPU$BNQ શࠃπΞʔ։࠵஍ืू

"CPVUPVSDPNQBOZ 1MPOFΛ༻͍ͨ8FCγεςϜ։ൃ େֶؔ܎ اۀ޲͚ 8FCܥͷΤϯδχΞϦϯάձࣾ 1ZUIPOʹಛԽͨ͠γεςϜΠϯςάϨʔλ $.4DPN $.4 ಈը
ݕࡧ .00$

ηογϣϯͷ಺༰ σʔλϋϯυϦϯάΛத৺ ͲͷΑ͏ʹ࣮ߦ͍ͯ͠Δͷ͔Λ஌ͬͯ΋Β͏ +VQZUFS/PUFCPPLΛ࢖༻͠·͢ ࣮ߦͨ͠಺༰͸(JUIVCͰެ։͍ͯ͠·͢ IUUQTHJUIVCDPNUFSBQZPOQZUIPONBDIJOFMFBSOJOHUVUPSJBM

ଞͰ΋Ͱ͖Δ σʔλͷલॲཧʹQBOEBT &YDFMͰ΋Ͱ͖Δ͚Ͳɻ ՄࢹԽ &YDFMͰ΋Ͱ͖Δ͚ͲͶɻ ػցֶश ϞσϧΛࣗ෼Ͱϓϩάϥϛϯάͯ͠΋͍͍͚ ͲͶɻ σʔλ෼ׂ΍ධՁΛϓϩάϥϛϯάͯ͠΋͍ ͍͚ͲͶɻ

ศརͳϙΠϯτ +VQZUFS/PUFCPPL QBOEBT NBUQMPUMJC ܁Γฦ࣮͠ߦ͕༰қ ࠶ར༻Մೳ HJUIVCͰ௚઀ՄࢹԽՄೳ ࠶ࢼ΋༰қ TDJLJUMFBSO ػցֶश͕༰қ
ศརͳπʔϧ͕ͦΖ͍ͬͯΔ

࢖༻͢Δπʔϧ 1ZUIPOIUUQTEPDTQZUIPOKQ /VN1ZIUUQTEPDTTDJQZPSHEPD 4DJ1ZIUUQTEPDTTDJQZPSHEPD QBOEBTIUUQQBOEBTQZEBUBPSHQBOEBTEPDTTUBCMF NBUQMPUMJCIUUQTNBUQMPUMJCPSHDPOUFOUTIUNM TDJLJUMFBSOIUUQTDJLJUMFBSOPSHTUBCMF
EPDVNFOUBUJPOIUNM KVQZUFSIUUQKVQZUFSOPUFCPPLSFBEUIFEPDTJPFOMBUFTU

ࠓճऔΓѻ͏ػցֶश ڭࢣ͋Γ ෼ྨ ஋෼ྨ σʔλΛऔಘ આ໌ม਺ ಛ௃ม਺ Λऔಘ ໨తม਺Λऔಘ

ػցֶशͷ୊ࡐ ઍ༿ࢢͷΦʔϓϯσʔλ ΠϯϑϧΤϯβͷใࠂ਺ ؾ৅ிͷαΠτ͔Βؾ৅৘ใ ؾ৅৘ใ͔ΒΠϯϑϧΤϯβͷྲྀߦΛ༧ଌ

ػցֶश΁ͷྲྀΕ

σʔλબͼɾσʔλೖख σʔλՃ޻ɾσʔλ࿈݁ ՄࢹԽ ػցֶशΞϧΰϦζϜબఆ ػցֶशϞσϧֶश ػցֶशϞσϧධՁ

σʔλબͼɾσʔλೖख σʔλՃ޻ɾσʔλ࿈݁ ՄࢹԽ ػցֶशΞϧΰϦζϜબఆ ػցֶशϞσϧֶश ػցֶशϞσϧධՁ σʔλΛ୳͢ σʔλͷೖखɾμ΢ϯϩʔυ σʔλͷ֓ཁΛଊ͑Δ
ΠϯσοΫε໊΍ΧϥϜ໊Λ෇͚Δ

σʔλબͼɾσʔλೖख σʔλՃ޻ɾσʔλ࿈݁ ՄࢹԽ ػցֶशΞϧΰϦζϜબఆ ػցֶशϞσϧֶश ػցֶशϞσϧධՁ σʔλͷॳظՃ޻ σʔλͷ࿈݁ ܽଛ஋ॲཧ
Ճ޻ࡁΈσʔλͷ֬ೝ Ճ޻ࡁΈσʔλͷอଘ

σʔλબͼɾσʔλೖख σʔλՃ޻ɾσʔλ࿈݁ ՄࢹԽ ػցֶशΞϧΰϦζϜબఆ ػցֶशϞσϧֶश ػցֶशϞσϧධՁ ՄࢹԽ؀ڥઃఆ σʔλͷಡࠐΈ άϥϑԽ
਺஋Ͱ֓ཁΛݟΔ ૬ؔΛ֬ೝ ඞཁʹͳΔσʔλΛ࡞Δ ଟมྔม਺ΛݟΔ

σʔλબͼɾσʔλೖख σʔλՃ޻ɾσʔλ࿈݁ ՄࢹԽ ػցֶशΞϧΰϦζϜબఆ ػցֶशϞσϧֶश ػցֶशϞσϧධՁ ΞϧΰϦζϜͷީิΛ্͛Δ ৔߹ʹΑͬͯ͸σʔλ࠶Ճ޻ ৔߹ʹΑͬͯ͸ओ੒෼෼ੳ
આ໌ม਺ͱ໨తม਺ΛܾΊΔ

σʔλબͼɾσʔλೖख σʔλՃ޻ɾσʔλ࿈݁ ՄࢹԽ ػցֶशΞϧΰϦζϜબఆ ػցֶशϞσϧֶश ػցֶशϞσϧධՁ ֶशσʔλͱςετσʔλΛ෼ׂ ΞϧΰϦζϜͷॳظԽ ύϥϝʔλઃఆ
ֶश

σʔλબͼɾσʔλೖख σʔλՃ޻ɾσʔλ࿈݁ ՄࢹԽ ػցֶशΞϧΰϦζϜબఆ ػցֶशϞσϧֶश ػցֶशϞσϧධՁ ༧ଌ ༧ଌ݁ՌΛධՁ ࠞಉߦྻͰ֬ೝ
ద߹཰ɾ࠶ݱ཰ɾ'஋ ଞͷϞσϧɾύϥϝʔλΛࢼ͢ ަࠩݕূ ΫϩεόϦσʔγϣϯʣ άϦοταʔν ύϥϝʔλௐ੔ʣ

ݸผʹϙΠϯτΛ ֬ೝ͠·͢

σʔλબͼɾσʔλೖख σʔλՃ޻ɾσʔλ࿈݁ ՄࢹԽ ػցֶशΞϧΰϦζϜબఆ ػցֶशϞσϧֶश ػցֶशϞσϧධՁ σʔλΛ୳͢ σʔλͷೖखɾμ΢ϯϩʔυ σʔλͷ֓ཁΛଊ͑Δ
ΠϯσοΫε໊΍ΧϥϜ໊Λ෇͚Δ

σʔλΛ୳͢ ؾ৅σʔλ ؾ৅ிͷաڈͷؾ৅σʔλ IUUQXXXEBUBKNBHPKQHNESJTLPCTEMJOEFYQIQ $$#:ؾ৅ி ޓ׵ ΠϯϑϧΤϯβใࠂ݅਺ ઍ༿ݝͷΦʔϓϯσʔλ IUUQXXXDJUZDIJCBKQPQFOEBUBJOEFYQIQ
$$#:ઍ༿ࢢ

σʔλͷೖखɾμ΢ϯϩʔυ αΠτ͔Β$47ϑΝΠϧΛμ΢ϯϩʔυ QBOEBTσʔλϑϨʔϜԽ EG@XFBUIFSQESFBE@DTW lEBUBؾ৅ிઍ༿DTW FODPEJOHTIJGU@KJT TLJQSPXT
EG@QESFBE@DTW lEBUBJOqVFO[BDTW FODPEJOHTIJGU@KJT

σʔλͷ֓ཁΛଊ͑Δ QBOEBTσʔλϑϨʔϜͷϝιουΛ࢖༻ EG@XFBUIFSIFBE EG@XFBUIFSUBJM EG@XFBUIFSTIBQF EG@XFBUIFSEUZQFT

ΠϯσοΫε໊΍ΧϥϜ໊Λ෇͚Δ QBOEBTͷػೳΛ࢖͏ EG@XFBUIFS<b೥݄೔>a QEUP@EBUFUJNF EG@XFBUIFS<l೥݄೔z> EG@XFBUIFSEG@XFBUIFSTFU@JOEFY b೥݄೔
EBUF@JOEFYa QEEBUF@SBOHF TUBSUl QFSJPET GSFRl8.0/ EG@JOEFYEBUF@JOEFY

σʔλબͼɾσʔλೖख σʔλՃ޻ɾσʔλ࿈݁ ՄࢹԽ ػցֶशΞϧΰϦζϜબఆ ػցֶशϞσϧֶश ػցֶशϞσϧධՁ σʔλͷॳظՃ޻ σʔλͷ࿈݁ ܽଛ஋ॲཧ
Ճ޻ࡁΈσʔλͷ֬ೝ Ճ޻ࡁΈσʔλͷอଘ

σʔλͷॳظՃ޻ QBOEBTσʔλϑϨʔϜͷػೳΛۦ࢖ EG@XFBUIFS@UFNQa EG@XFBUIFSJMPD< <JGPSJ UJOFOVNFSBUF EG@XFBUIFSJMPD< >JTOVMM
JGU>> EG@XFBUIFSa EG@XFBUIFS<EG@XFBUIFSDPMVNOT< EG@XFBUIFSJMPD<>JTOVMM >> EG@XFBUIFSEG@XFBUIFSESPQ < > EG@QE%BUB'SBNF EG@JMPD< >

σʔλͷ࿈݁ QBOEBTσʔλϑϨʔϜͷػೳΛۦ࢖ EG@JOqVQEDPODBU <EG@ EG@ EG@> EGQEDPODBU <EG@JOqV
EG@XFBUIFS> BYJT

ܽଛ஋ॲཧ QBOEBTσʔλϑϨʔϜͷػೳΛۦ࢖ EG@JOqVEG@JOqVESPQOB EG@JOqVQE%BUB'SBNF EG@JOqVBTUZQF OQqPBU EGEGMPD<
> EG<ใࠂ਺>a EG<lใࠂ਺z>pMMOB NFUIPE⒏MM BTUZQF OQqPBU

Ճ޻ࡁΈσʔλͷ֬ೝ QBOEBTσʔλϑϨʔϜͷϝιουΛ࢖༻ EG@XFBUIFSIFBE EG@XFBUIFSUBJM EG@XFBUIFSTIBQF EG@XFBUIFSEUZQFT

Ճ޻ࡁΈσʔλͷอଘ QBOEBTͷػೳΛ࢖ͬͯɺγϦΞϥΠζԽ EG@JOqVUP@QJDLMF lEG@JOqVEC

σʔλબͼɾσʔλೖख σʔλՃ޻ɾσʔλ࿈݁ ՄࢹԽ ػցֶशΞϧΰϦζϜબఆ ػցֶशϞσϧֶश ػցֶशϞσϧධՁ ՄࢹԽ؀ڥઃఆ σʔλͷಡࠐΈ άϥϑԽ
਺஋Ͱ֓ཁΛݟΔ ૬ؔΛ֬ೝ ඞཁʹͳΔσʔλΛ࡞Δ ଟมྔม਺ΛݟΔ

ՄࢹԽ؀ڥઃఆ NBUQMPUMJCΛΠϯϥΠϯͰදࣔ NBUQMPUMJCͰ೔ຊޠΛදࣔ NBUQMPUMJCJOMJOF GSPNNBUQMPUMJCJNQPSUSD1BSBNT SD1BSBNT<GPOUTBOTTFSJG>4PVSDF)BO$PEF+1 SD1BSBNT<GPOUXFJHIU>SFHVMBS SD1BSBNT<BYFTUJUMFTJ[F> SD1BSBNT<ZUJDLMBCFMTJ[F>
SD1BSBNT<YUJDLMBCFMTJ[F>

σʔλͷಡࠐΈ QBOEBTͷػೳΛ࢖ͬͯɺσʔλϑϨʔϜ෮ݩ EG@JOqVQESFBE@QJDLMF EG@JOqVEC

άϥϑԽ QBOEBT಺෦͔ΒNBUQMPUMJCΛར༻ EG@JOqV<bใࠂ਺>IJTU CJOT EG@JOqVQMPU

਺஋Ͱ֓ཁ جຊ౷ܭྔ ΛݟΔ QBOEBTσʔλϑϨʔϜͷϝιουΛར༻ EG@JOqVEFTDSJCF EGEFTDSJCF

ඞཁʹͳΔσʔλΛ࡞Δ QBOEBTσʔλϑϨʔϜͷϝιουΛར༻ EG@JOqV<ྲྀߦ>a EG@JOqV<bใࠂ਺>BQQMZ MBNCEBYJGYFMTF EG@JOqV<૿Ճ>EG@JOqV<bใࠂ਺>EJ⒎ QFSJPET

૬ؔΛ֬ೝ QBOEBTσʔλϑϨʔϜͷϝιουΛར༻ EGDPSS

ଟมྔม਺ΛݟΔ QBOEBTͷػೳΛ࢖͏ GSPNQBOEBTQMPUUJOHJNQPSUTDBUUFS@NBUSJY TDBUUFS@NBUSJY EG pHTJ[F

σʔλબͼɾσʔλೖख σʔλՃ޻ɾσʔλ࿈݁ ՄࢹԽ ػցֶशΞϧΰϦζϜબఆ ػցֶशϞσϧֶश ػցֶशϞσϧධՁ ΞϧΰϦζϜͷީิΛݕ౼ ৔߹ʹΑͬͯ͸σʔλ࠶Ճ޻ ৔߹ʹΑͬͯ͸ओ੒෼෼ੳ
આ໌ม਺ͱ໨తม਺ΛܾΊΔ

ΞϧΰϦζϜͷީิΛݕ౼ TDJLJUMFBSOͷػೳΛ֬ೝ ϩδεςΟοΫճؼTLMFBSOMJOFBS@NPEFM-PHJTUJD3FHSFTTJPO αϙʔτϕΫλʔϚγϯTLMFBSOTWN47$ Χʔωϧ47.TLMFBSOTWN47$ ܾఆ໦TLMFBSOUSFF%FDJTJPO5SFF$MBTTJpFS ϥϯμϜϑΥϨετTLMFBSOFOTFNCMF3BOEPN'PSFTU$MBTTJpFS Lۙ๣TLMFBSOOFJHICPST,/FJHICPST$MBTTJpFS

આ໌ม਺ͱ໨తม਺ΛܾΊΔ QBOEBTͷػೳΛ࢖͏ 9EGJMPD< > ZEG<bྲྀߦ>

σʔλબͼɾσʔλೖख σʔλՃ޻ɾσʔλ࿈݁ ՄࢹԽ ػցֶशΞϧΰϦζϜબఆ ػցֶशϞσϧֶश ػցֶशϞσϧධՁ ֶशσʔλͱςετσʔλΛ෼ׂ ΞϧΰϦζϜͷॳظԽ ύϥϝʔλઃఆ
ֶश

ֶशσʔλͱςετσʔλΛ෼ׂ TDJMJUMFBSOͷػೳΛ࢖͏ IUUQRJJUBDPNUFSBQZPOJUFNTGEFFFFCGC GSPNTLMFBSONPEFM@TFMFDUJPOJNQPSUUSBJO@UFTU@TQMJU 9@USBJO 9@WBM Z@USBJO Z@WBMa USBJO@UFTU@TQMJU
9 Z USBJO@TJ[F

ΞϧΰϦζϜͷॳظԽ TDJMJUMFBSOͷػೳΛ࢖͏ GSPNTLMFBSOMJOFBS@NPEFMJNQPSU-PHJTUJD3FHSFTTJPO DMG-PHJTUJD3FHSFTTJPO

ֶश TDJMJUMFBSOͷػೳΛ࢖͏ DMGpU 9@USBJO Z@USBJO

σʔλબͼɾσʔλೖख σʔλՃ޻ɾσʔλ࿈݁ ՄࢹԽ ػցֶशΞϧΰϦζϜબఆ ػցֶशϞσϧֶश ػցֶशϞσϧධՁ ༧ଌ ༧ଌ݁ՌΛධՁ ࠞಉߦྻͰ֬ೝ
ద߹཰ɾ࠶ݱ཰ɾ'஋ ଞͷϞσϧɾύϥϝʔλΛࢼ͢ ަࠩݕূ ΫϩεόϦσʔγϣϯ άϦοταʔν ύϥϝʔλௐ੔

༧ଌ TDJMJUMFBSOͷػೳΛ࢖͏ Z@WBM@QSFEDMGQSFEJDU 9@WBM

༧ଌ݁ՌΛධՁ TDJMJUMFBSOͷػೳΛ࢖͏ GSPNTLMFBSONFUSJDTJNQPSUBDDVSBDZ@TDPSF BDDVSBDZ@TDPSF Z@WBM Z@WBM@QSFE

ࠞಉߦྻͰ֬ೝ TDJMJUMFBSOͷػೳΛ࢖͏ GSPNTLMFBSONFUSJDTJNQPSUDPOGVTJPO@NBUSJY DNDPOGVTJPO@NBUSJY Z@WBM Z@WBM@QSFE BSSBZ << >
< >> <<5/ '1> <'/ 51>>

ࠞಉߦྻͷઆ໌ <<5/ '1> <'/ 51>> ྲྀߦͰͳ͍ / ͱ༧ଌ
ྲྀߦ 1 ͱ༧ଌ ྲྀߦͰͳ͍ ͕ਖ਼͍͠ 5/ ਅӄੑ '1 ِཅੑ ྲྀߦ ͕ਖ਼͍͠ '/ ِӄੑ 51 ਅཅੑ

ࠞಉߦྻͰ֬ೝ TDJMJUMFBSOͷػೳΛ࢖͏ GSPNTLMFBSONFUSJDTJNQPSUDPOGVTJPO@NBUSJY DNDPOGVTJPO@NBUSJY Z@WBM Z@WBM@QSFE BSSBZ << >
< >> <<5/ '1> <'/ 51>>

ద߹཰ɾ࠶ݱ཰ɾ'஋ TDJMJUMFBSOͷػೳΛ࢖͏ GSPNTLMFBSONFUSJDTJNQPSUDMBTTJpDBUJPO@SFQPSU QSJOU DMBTTJpDBUJPO@SFQPSU Z@WBM Z@WBM@QSFE QSFDJTJPOSFDBMMGTDPSFTVQQPSU
BWHUPUBM

ద߹཰ɾ࠶ݱ཰ɾ'஋ ద߹཰ 1 ࠓճͷ৔߹͸ɺྲྀߦ͍ͯ͠ͳ͍ ʹ൑ఆ͞Εͨ ཰
/ ࠓճͷ৔߹͸ɺྲྀߦ͍ͯ͠Δ ʹ൑ఆ͞Εͨ཰ ࠶ݱ཰ 5ͱਖ਼͘͠༧ଌͰׂ͖ͨ߹ 'ͱਖ਼͘͠༧ଌͰׂ͖ͨ߹ '஋ ద߹཰ ࠶ݱ཰ ͷ'஋ ͷ'஋

ଞͷϞσϧɾύϥϝʔλΛࢼ͢ ؔ਺Խ͓ͯ͘͠ EFGpU@UP@QSFE DMG 9@USBJO 9@WBM Z@USBJO Z@WBM
ֶश DMGpU 9@USBJO Z@USBJO ֶशσʔλͰධՁ Z@USBJO@QSFEDMGQSFEJDU 9@USBJO QSJOU Z@USBJO@QSFE SFQPSU Z@USBJO Z@USBJO@QSFE ςετσʔλͰධՁ Z@WBM@QSFEDMGQSFEJDU 9@WBM QSJOU Z@WBM@QSFE SFQPSU Z@WBM Z@WBM@QSFE ֶशࡁΈσʔλΛฦ͢ SFUVSODMG

ଞͷϞσϧɾύϥϝʔλΛࢼ͢ ؔ਺Λ࣮ߦ DMG-PHJTUJD3FHSFTTJPO pU@UP@QSFE DMG 9@USBJO 9@WBM Z@USBJO
Z@WBM GSPNTLMFBSOTWNJNQPSU47$ TWD47$ LFSOFMMJOFBS pU@UP@QSFE TWD 9@USBJO 9@WBM Z@USBJO Z@WBM GSPNTLMFBSOFOTFNCMFJNQPSU3BOEPN'PSFTU$MBTTJpFS SG3BOEPN'PSFTU$MBTTJpFS pU@UP@QSFE SG 9@USBJO 9@WBM Z@USBJO Z@WBM

ަࠩݕূ ΫϩεόϦσʔγϣϯ TDJMJUMFBSOͷػೳΛ࢖͏ GSPNTLMFBSONPEFM@TFMFDUJPOJNQPSUDSPTT@WBM@TDPSF GSPNTLMFBSONPEFM@TFMFDUJPOJNQPSU,'PME DW,'PME TIV⒐F5SVF
DMG-PHJTUJD3FHSFTTJPO DSPTT@WBM@TDPSF DMG 9 Z DWDW

άϦοταʔν ύϥϝʔλௐ੔ TDJMJUMFBSOͷػೳΛ࢖͏ GSPNTLMFBSONPEFM@TFMFDUJPOJNQPSU(SJE4FBSDI$7 QBSBN@HSJE\NBY@EFQUI<
> O@FTUJNBUPST< >^ SG3BOEPN'PSFTU$MBTTJpFS NBY@EFQUI O@FTUJNBUPST HSJE@TFBSDI(SJE4FBSDI$7 SG QBSBN@HSJE DWDW O@KPCT WFSCPTF HSJE@TFBSDIpU 9 Z HSJE@TFBSDICFTU@TDPSF@ HSJE@TFBSDICFTU@QBSBNT@

5IBOLZPV $.4 1MPOF $POUBDUUPUFSBEB!QZDPOKQ

1ZUIPO#PPU$BNQ શࠃπΞʔ։࠵஍ืू

Python 機械学習ことはじめ at ODC

Python 機械学習ことはじめ at ODC

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