Amazon SageMakerではじめる物体検出

by tandfy

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)*(0#"4)*"84 ୈճػցֶशˍσʔλ෼ੳฤ େᖒ༐ే "NB[PO4BHF.BLFSͰ͸͡ΊΔ෺ମݕग़

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ࣗݾ঺հ େᖒ༐ే w σʔλΠϯςάϨʔγϣϯ෦ػցֶशνʔϜ w ΤϯδχΞ w ೥݄ೖࣾ w લ৬ɿ6OJUZͱ͔1)1౳ͰήʔϜ։ൃ

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ࠓ೔࿩͢಺༰ wػցֶशͱը૾ܥλεΫͷ֓ཁ w4BHF.BLFSͷ֓ཁ w4BHF.BLFSͷը૾ܥ૊ΈࠐΈΞϧΰϦζϜͷ֓ཁ

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ࠓ೔࿩͞ͳ͍಺༰ wػցֶशϞσϧࣗମʹؔ͢Δ಺༰ w.-0QTతͳ಺༰ wϋΠύʔύϥϝʔλνϡʔχϯάʹ͍ͭͯ ͳͲ

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εϥΠυ͸ޙͰೖख͢Δ͜ͱ͕ग़དྷ·͢ͷͰ ൃදதͷ಺༰ΛϝϞ͢Δඞཁ͸͋Γ·ͤΜɻ ࣸਅࡱӨΛ͢Δ৔߹͸ ϑϥογϡɾγϟολʔԻ͕ग़ͳ͍Α͏ʹ͝഑ྀ͍ͩ͘͞ Attention

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ػցֶश

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ػցֶश ͬ͘͟Γݴ͏ͱنଇੑΛֶशͤ͞Δ͜ͱɻ wڭࢣ͋Γֶश౴͑Λ༩͑ͯೖྗͱ౴͑ͷنଇੑΛֶशͤ͞Δ wڭࢣͳֶ͠शɿ౴͑Λ༩͑ͣʹೖྗͷنଇੑΛֶशͤ͞Δ w൒ڭࢣ͋Γֶशɿجຊతʹ͸౴͑Λ༩͑ͣʹೖྗͷنଇੑΛֶशͤ͞ Δ͕ɺ෦෼తʹ౴͑Λ༩͑ͯิॿ͢Δ wڧԽֶशɿ͋Δ؀ڥͰใु͕࠷େԽ͢Δߦಈબ୒ͷنଇੑΛֶशͤ͞Δ ͳͲ ҟ࿦͸ೝΊΔ

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ػցֶश ҟৗݕग़

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ػցֶश ୯ޠͷຒΊࠐΈ

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ػցֶश ΫϥελϦϯά

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ը૾ܥͷओͳλεΫ

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ը૾ܥͷओͳλεΫ wը૾෼ྨɿը૾ͷ಺༰ΛجʹΫϥε෼ྨ wྫݘ͕өͬͯΔ͔Ͳ͏͔ɺਓ͕ࣸͬͯΔը૾͔Ͳ͏͔෼ྨ͢ΔͳͲ w෺ମݕग़ɿը૾಺ͷର৅෺͕ೖͬͨ௕ํܗͷҐஔΛݕग़ wྫݘͱೣ͕ࣸͬͯΔҐஔΛݕग़͢ΔͳͲ wηϚϯςΟοΫηάϝϯςʔγϣϯɿϐΫηϧ୯ҐͰΫϥε෼ྨ wྫϐΫηϧ͝ͱʹݘ΍ۭɺಓ࿏ɺೣɺਓɺͦͷଞʹ෼ྨ͢ΔͳͲ

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෺ମݕग़

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ηϚϯςΟοΫηάϝϯςʔγϣϯ

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"NB[PO4BHF.BLFS

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"NB[PO4BHF.BLFS "84্Ͱػցֶश͕࢖͑ΔϑϧϚωʔδυαʔϏεϓϥοτϑΥʔϜ wΠϯϑϥͷ͜ͱ͸ߟ͑ͣʹػցֶश͕࢖͑Δ w+VQZUFSϊʔτϒοΫͱ෼ࢄֶशͱϞσϧͷϗεςΟϯά͕؆୯ wϞσϧͷ࣮૷͕ෆཁͳ૊ΈࠐΈΞϧΰϦζϜ͕छྨ༻ҙ͞Ε͍ͯΔ w5FOTPS'MPX΍.9/FUͳͲͷϑϨʔϜϫʔΫͰͷػցֶशʹ΋ରԠ wֶशͱਪ࿦ʹ࢖͏ઐ༻ͷίϯςφΠϝʔδΛ࡞੒͢Ε͹೚ҙͷػցֶश ͕࢖͑Δ wϋΠύʔύϥϝʔλνϡʔχϯά΋؆୯ʹճͤΔγεςϜ͕͋Δ

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"NB[PO4BHF.BLFS ϞσϧͷֶशͱϗεςΟϯά࣌ͷΠϝʔδ

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"NB[PO4BHF.BLFS ػցֶशͷମݧΛڧԽ͢ΔपลαʔϏε wڧԽֶशˠ4BHF.BLFS3- w3PCP.BLFSͱ΋࿈ܞՄೳ wϞσϧͷ؅ཧˠ4BHF.BLFS4FBSDI wσʔλͱֶशδϣϒͱਫ਼౓ͱϞσϧͷؔ܎ੑ͕ݟΕΔ wը૾ͷΞϊςʔγϣϯͷख഑ͱ؅ཧˠ4BHF.BLFS(SPVOE5SVUI wίϯύΠϧʹΑͬͯϞσϧΛσόΠεʹ࠷దԽˠ4BHF.BLFS/FP

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"NB[PO4BHF.BLFS ૊ΈࠐΈΞϧΰϦζϜ

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"NB[PO4BHF.BLFS૊ΈࠐΈΞϧΰϦζϜ ෼ྨɺճؼɺΫϥελϦϯάЋ w9(#PPTU wઢܗֶशث wҼ਺෼ղث w,.FBOT wL// w1$" w%FFQ"3 -45.Λ࢖ͬͨࣗݾճؼ wϥϯμϜΧοτϑΥϨετ ҟৗݕग़ w*1*OTJHIUT *1ΞυϨεύλʔϯͷֶशɺҟৗݕग़ w0CKFDU7FD ΦϒδΣΫτͷຒΊࠐΈ ςΩετܥ w#MB[JOH5FYU 8PSE7FD wજࡏతσΟϦΫϨׂΓ౰ͯ wχϡʔϥϧτϐοΫϞσϧ w4FRVFODFUP4FRVFODF ը૾ܥ wը૾෼ྨ w෺ମݕग़ wηϚϯςΟοΫηάϝϯςʔγϣϯ

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"NB[PO4BHF.BLFS૊ΈࠐΈΞϧΰϦζϜ ը૾ܥ wը૾෼ྨ w ϚϧνϥϕϧରԠɺ3FT/FUɺ.9/FUޓ׵ w෺ମݕग़ w 44% ϕʔε7((͔3FT/FU ɺ.9/FUޓ׵ wηϚϯςΟοΫηάϝϯςʔγϣϯ w '$/͔141͔%FFQ-BC7ɺ.9/FU(MVPO$75PPMLJU੡

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4BHF.BLFS1ZUIPO4%,

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4BHF.BLFS1ZUIPO4%, SageMakerͰͷػցֶशΛαϙʔτ͢ΔΦʔϓϯιʔεͷPythonϥΠϒϥϦ https://github.com/aws/sagemaker-python-sdk

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4BHF.BLFS1ZUIPO4%, wσʔλΛ४උ wμ΢ϯϩʔυɺલॲཧɺ4΁Ξοϓϩʔυ wֶशΛϋϯυϧ͢Δ&TUJNBUPSΛੜ੒ wFTUJNBUPSTBHFNBLFSFTUJNBUPS&TUJNBUPS ύϥϝʔλ wϋΠύʔύϥϝʔλΛઃఆ wFTUJNBUPSTFU@IZQFSQBSBNFUFST ύϥϝʔλ wֶशΛ։࢝ wFTUJNBUPSpU ύϥϝʔλ

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4BHF.BLFS1ZUIPO4%, wϞσϧΛϗετ͢ΔΤϯυϙΠϯτΛ࡞੒ wQSFEJDUPSFTUJNBUPSEFQMPZ ύϥϝʔλ wϞσϧͰσʔλΛਪ࿦ wQSFEJDUPSQSFEJDU σʔλ wΤϯυϙΠϯτΛ࡟আ wQSFEJDUPSEFMFUF@FOEQPJOU

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4BHF.BLFS1ZUIPO4%, ػցֶश͸ϊʔτϒοΫ΍εΫϦϓτ͔Βճ͢͜ͱ͕ଟ͍ SageMaker Python SDKΛ࢖͏ͱָ

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"NB[PO4BHF.BLFS&YBNQMFT

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"NB[PO4BHF.BLFS&YBNQMFT 4BHF.BLFSͷೖ໳༻ϊʔτϒοΫ͕৭ʑ͋Δ https://github.com/awslabs/amazon-sagemaker-examples

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"NB[PO4BHF.BLFS&YBNQMFT https://github.com/awslabs/amazon-sagemaker-examples/blob/master/introduction_to_amazon_algorithms/object_detection_pascalvoc_coco/object_detection_recordio_format.ipynb

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"NB[PO4BHF.BLFS&YBNQMFT ϊʔτϒοΫΠϯελϯε͔ΒࢀরͰ͖Δ

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"NB[PO4BHF.BLFS&YBNQMFT +VQZUFS-BC͔Β΋0,

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4BHF.BLFS1ZUIPO4%, SageMakerΛ৮ͬͯΈΔͷʹ࠷ద ͡Ό͋ɺ࣮ࡍʹ΍ͬͯΈΑ͏!

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σϞ

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·ͱΊ "NB[PO4BHF.BLFSʜ wϑϧϚωʔδυͳػցֶशαʔϏε wΠϯϑϥͷ͜ͱΛ͋·Γؾʹ͠ͳͯ͘ྑ͍ wը૾ܥΞϧΰϦζϜ΋༻ҙ͞ΕͯΔ wपลαʔϏε΋͍Ζ͍Ζ͋Δ αϯϓϧϊʔτϒοΫ͕Ұഋ͋ΔͷͰ ͱΓ͋͑ͣԿ͔΍ͬͯΈΔͷ͕͓͢͢Ί

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͍͞͝ʹ ࢖ͬͨ෼͚ͩ՝ۚ͞ΕΔͷͰ ֶश࣌ؒ΍ΤϯυϙΠϯτͷ࡟আ͠๨Εʹ͸ؾΛ͚ͭ·͠ΐ͏ ಛʹ(16͸΍͹͍Ͱ͢ʜ

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