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Chainer 初学者向けハンズオン
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keisuke umezawa
June 08, 2019
Technology
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3.5k
Chainer 初学者向けハンズオン
keisuke umezawa
June 08, 2019
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Transcript
Chainer ॳֶऀ͚ϋϯζΦϯ chug (Chainer User Group) wifi: NTTCom-Guest-28F twitterͷϋογϡλά #chug_jp
Ͱ͓ئ͍͠·͢ɻ AzureΞΧϯτ࡞·ͩͷํ։࢝લʹ࡞͓ئ͍͠·͢ɻ ࣭ɺSlack chainer-jp ͷ #chainer-handson-ms Ͱɻ ొ͕·ͩͷํɺhttps://bit.ly/chainer-jp-slack
ࣗݾհ !2 • കᖒ ܚհ (14ষ୲) • ۚ༥Ϛʔέοτ༧ଌϞσϧͷݚڀ։ൃ @AlpacaJapan •
Chainer Evangelist ˏPreferred Networks • ࠷্ོ࢙ (15ষ୲) • ϧγεςϜζגࣜձࣾͰʮઌٕज़ΛϏδωεʯʹ͢Δݚڀ։ൃΛߦɻը૾ ॲཧɺARɺਂֶशɺڧԽֶशΛૢΔɻScrumMaster͚ͷ׆ಈarxivจΛ ಡΉ׆ಈల։தɻৗʹChainerΛͬͯkaggleSIGNATEͰٕज़Λຏ͘ɻ • ߁थ (16ষ୲) • גओձࣾACCESSͷCo-CTOɻීஈIoTΛ͢ΔΒɺChainerͰ༡ΜͰ·͢ɻ
Agenda 1. Chainer/CuPyͷհ 2. ຊͷϋϯζΦϯͷ༰ !3
Chainer/CuPyͷհ !4
Chainer • Chainerͱ (http://chainer.org/) • Preferred NetworksDeep LearningϑϨʔϜϫʔΫ !5
Chainer !6 • GoogleࣾTensorFlowͳͲͷಉྨ
CuPy !7 Chainerʹ͓͚ΔGPUܭࢉΛશͯ୲͢ΔϥΠϒϥϦ͕ಠཱ NumPyޓAPIͰίετʹCPUίʔυΛGPUҠߦ ಛҟղͳͲͷઢܗΞϧΰϦζϜΛGPU࣮ߦ KMeans, Gaussian Mixture ModelͳͲͷExampleͷॆ࣮ import
numpy as np x = np.random.rand(10) W = np.random.rand(10, 5) y = np.dot(x, W) import cupy as cp x = cp.random.rand(10) W = cp.random.rand(10, 5) y = cp.dot(x, W) GPU https://github.com/cupy/cupy
֦େ͢ΔChainerϑΝϛϦʔ !8 Chainer UI Chainer Chemistry ڧԽֶश ը૾ೝࣝ ՄࢹԽ άϥϑߏ
େنࢄ Menoh ਪಛԽ
࠷ۙͷͰ͖͝ͱ(1): Chainer Tutorials ͷެ։ • Chainer͚ͩͰͳ͘ɺֶPythonͷجૅʙػցֶशɾσΟʔϓϥʔ χϯάͷجૅɾίʔσΟϯάɾԠ༻·Ͱ෯͘ղઆɻ • શষΛColab্Ͱ࣮ߦՄೳͳJupyterϊʔτϒοΫͱͯ͠த !9
https://tutorials.chainer.org/ja/
࠷ۙͷͰ͖͝ͱ(2): ChainerX ެ։ • ࣗಈඍՄೳͳNumPy-likeͳ ndarrayΛC++Ͱ࣮͢Δ͜ͱ ʹΑΓҎԼΛୡ • ߴԽ •
ଟ༷ͳσόΠεʹରԠ • pythonҎ֎ͷݴޠͰdeploy Մೳ !10
ຊͷϋϯζΦϯͷ༰ !11
ࠓճͷ༰ !12 • ChainerΛͬͨσΟʔϓϥʔχϯάೖίϯςϯπʮChainer νϡ ʔτϦΞϧʯ͕ެ։͞Ε·ͨ͠ɻࠓճɺͦͷҰ෦ίϯςϯπΛར ༻͠ɺChainerΛͬͯσΟʔϓϥʔχϯάΛମݧ͍ͯͨͩ͘͜͠ͱ Λతͱ͍ͯ͠·͢ɻ • 14ষɿChainer
ͷجૅ • 15ষɿChainer ͷԠ༻ • 16ষɿτϨʔφͱΤΫεςϯγϣϯ • https://notebooks.azure.com/kumezawa/projects/tutorials
GPUΛͬͯಈ͔͢ʹʁ !13 • ຊͷϋϯζΦϯCPUڥͰߦ͍·͕ͨ͠ɺ༻ྉۚ͑͞ࢧ͑ GPUͰಈ͔͢͜ͱՄೳͰ͢ɻGPUͰಈ͔ͨ͠߹ҎԼΛࢀর ͍ͩ͘͞ɻ • ChainerRLͱAzure NotebooksΛ͔ͭͬͯɺMinecraftͰਂڧԽ ֶश
ϋϯζΦϯ http://bit.ly/2Zfq8tL
chug (Chainer User Group)ͷհ !14
Chainer User Groupͷհ • Slack chainer-jp https://bit.ly/join-chainer-jp-slack • Twitter @chug_jp
• ׆ಈ༰ • MeetupɾϋϯζΦϯͷ։࠵ • Chainerʹؔ͢ΔใɾυΩϡϝϯτͷ֦ॆ • Web νϡʔτϦΞϧͷ࡞ • Ұॹʹ׆ಈͰ͖ΔํΛืू͍ͯ͠·͢ʂ Slack #chug-jp-management ʹੋඇ !15
Ξϯέʔτ http://bit.ly/chainer-handson-20190608
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