Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
学習しないTensorFlow
Search
takenakam
April 18, 2016
Technology
0
4.3k
学習しないTensorFlow
TensorFlow勉強会(3)の発表資料です
takenakam
April 18, 2016
Tweet
Share
More Decks by takenakam
See All by takenakam
「異常検知と変化検知」輪読会 第3章発表資料
functionalaho
0
1.2k
Other Decks in Technology
See All in Technology
ブロックテーマ、WordPress でウェブサイトをつくるということ / 2026.02.07 Gifu WordPress Meetup
torounit
0
180
予期せぬコストの急増を障害のように扱う――「コスト版ポストモーテム」の導入とその後の改善
muziyoshiz
1
1.9k
Bill One急成長の舞台裏 開発組織が直面した失敗と教訓
sansantech
PRO
2
380
外部キー制約の知っておいて欲しいこと - RDBMSを正しく使うために必要なこと / FOREIGN KEY Night
soudai
PRO
12
5.5k
GitLab Duo Agent Platform × AGENTS.md で実現するSpec-Driven Development / GitLab Duo Agent Platform × AGENTS.md
n11sh1
0
140
[CV勉強会@関東 World Model 読み会] Orbis: Overcoming Challenges of Long-Horizon Prediction in Driving World Models (Mousakhan+, NeurIPS 2025)
abemii
0
140
セキュリティについて学ぶ会 / 2026 01 25 Takamatsu WordPress Meetup
rocketmartue
1
300
Sansan Engineering Unit 紹介資料
sansan33
PRO
1
3.8k
What happened to RubyGems and what can we learn?
mikemcquaid
0
300
顧客との商談議事録をみんなで読んで顧客解像度を上げよう
shibayu36
0
240
クレジットカード決済基盤を支えるSRE - 厳格な監査とSRE運用の両立 (SRE Kaigi 2026)
capytan
6
2.8k
Greatest Disaster Hits in Web Performance
guaca
0
250
Featured
See All Featured
[SF Ruby Conf 2025] Rails X
palkan
1
750
Color Theory Basics | Prateek | Gurzu
gurzu
0
200
Let's Do A Bunch of Simple Stuff to Make Websites Faster
chriscoyier
508
140k
Building AI with AI
inesmontani
PRO
1
690
Visual Storytelling: How to be a Superhuman Communicator
reverentgeek
2
430
Why Our Code Smells
bkeepers
PRO
340
58k
Paper Plane
katiecoart
PRO
0
46k
How to Get Subject Matter Experts Bought In and Actively Contributing to SEO & PR Initiatives.
livdayseo
0
66
The Hidden Cost of Media on the Web [PixelPalooza 2025]
tammyeverts
2
190
Discover your Explorer Soul
emna__ayadi
2
1.1k
Design and Strategy: How to Deal with People Who Don’t "Get" Design
morganepeng
133
19k
Practical Orchestrator
shlominoach
191
11k
Transcript
χϡʔϥϧωοτҎ֎Ͱͷ 5FOTPS'MPX׆༻๏ 5FOTPS'MPXษڧձʢ̏ʣ GBIP
ֶश͠ͳ͍5FOTPS'MPX 5FOTPS'MPXษڧձʢ̏ʣ GBIP
͓ଋ ຊࢿྉ͓Αͼൃݴͷ༰ݸਓͷݟղͰ͋Γɺॴଐ৫ɾษڧձओ࠵ऀͷݟղ ؚΈ·ͤΜɻ
ࣗݾհ GBIP !GVODUJPOBMBIP ג ϒϦϦΞϯταʔϏεॴଐ "OESPJEΤϯδχΞ
͓͜ͱΘΓ ຊൃදͰػցֶशͷग़͖ͯ·ͤΜ
5FOTPS'MPXͱʁ
ग़య,B[VOPSJ4BUP (PPHMF IUUQTTQFBLFSEFDLDPNLB[VOPSJDMPVEWJTJPOBQJBOEUFOTPSqPX
ग़య,B[VOPSJ4BUP (PPHMF IUUQTTQFBLFSEFDLDPNLB[VOPSJDMPVEWJTJPOBQJBOEUFOTPSqPX
ͬͪ͜ ग़య,B[VOPSJ4BUP (PPHMF IUUQTTQFBLFSEFDLDPNLB[VOPSJDMPVEWJTJPOBQJBOEUFOTPSqPX
ͬͪ͜ ग़య,B[VOPSJ4BUP (PPHMF IUUQTTQFBLFSEFDLDPNLB[VOPSJDMPVEWJTJPOBQJBOEUFOTPSqPX
ग़యIUUQTXXXUFOTPSqPXPSHWFSTJPOTSUVUPSJBMTJOEFYIUNM
ग़యIUUQTXXXUFOTPSqPXPSHWFSTJPOTSUVUPSJBMTJOEFYIUNM ୭৮Εͳ͍ɾɾɾ օɺڵຯͳ͍ʁ
Γ͍ͨ͜ͱ ภඍํఔࣜΛղ͖͍ͨ ֦ࢄํఔࣜ Ԡ֦ࢄํఔࣜ ϙΞιϯํఔࣜ
࣍ ඍํఔࣜͷࠩԽ ΈࠐΈͰඍํఔࣜΛղ͘ྲྀΕ ܭࢉྫ SBJOESPQTνϡʔτϦΞϧʹ͍ͭͯ ·ͱΊɾॴײɾࠓޙ
ภඍํఔࣜͬͯͲΜͳͷʁ ֦ࢄํఔࣜ ࣍ݩ V U Y Z ʢྫԹʣͷ࣌ؒൃలํఔࣜ FY
ͷ֦ࢄʢಋํఔࣜʣ ∂u ∂t = D ∂2 ∂x2 + ∂2 ∂y2 u
มΛࢄԽ͠ɺV YK ͷඍΛલޙͷVͷΛͬͯۙࣅ͢Δ V Y ͷ֊ඍͷࠩԽʢத৺ࠩʣ V Y ͷ֊ඍͷࠩԽʢத৺ࠩʣ
ඍԋࢉͷࠩදݱʢ࣍ݩʣ
∂u ∂t = D ∂2 ∂x2 + ∂2 ∂y2 u
࣍ݩͷ߹ಉ༷ʹ͢Δͱ ͰΈࠐΈʂ Z Y ϥϓϥγΞϯΧʔωϧͱ͍͏ શ֨ࢠͰΈࠐΉ
࣌ؒํͷੵ ࣌ؒํલਐࠩ ݞͷఴࣈO࣌Λද͢ EUݱ࣌ͱͷࠩͰۙࣅ͢Δ ∂u ∂t = D ∂2 ∂x2
+ ∂2 ∂y2 u
݁ہɺ֦ࢄํఔࣜΛࠩԽ͢Δͱ ݱࡏͷঢ়ଶ ͰΈࠐΈ ࣌ະདྷ ॳظঢ়ଶ U ɾɾɾ ऴঢ়ଶɹ ϥϓϥγΞϯͰ
ΈࠐΈ U ܁Γฦ͠
ܭࢉͯ͠Έͨ ˞ύϥϝλςΩτʔͰ͢ ࣮ࡍͷݱΛ࠶ݱ͢ΔͷͰ͋Γ·ͤΜ
֦ࢄํఔࣜ ॳظঢ়ଶ E E ಉ࣌ࠁͷεφοϓγϣοτ E E ∂u ∂t =
D ∂2 ∂x2 + ∂2 ∂y2 u ˠɹUGOOEFQUIXJTF@DPOWE
Ԡ֦ࢄํఔࣜ ྲྀମͷෆ҆ఆੑʹΑΔύλʔϯɾ༷ͷࣗൃతܗϞσϧ FYಈͷൽෘ༷ ϥϓϥγΞϯ ͰΈࠐΈ ఆ FMFNFOUXJTF ɾV৭ૉணΛଅਐ͢Δ࣭ͷີ
ɾWͦΕΛ્͢Δ࣭ͷີ ग़య<>*1ZUIPOσʔλαΠΤϯεΫοΫϒοΫ Ԡ߲ ֦ࢄ߲
Ԡ֦ࢄํఔࣜ ग़యIUUQTKBXJLJQFEJBPSHXJLJνϡʔϦϯάɾύλʔϯ
Ԡ֦ࢄํఔࣜ 境界の処理を サボっている ࣌ؒܦա
SBJOESPQTνϡʔτϦΞϧ ࣍ݩಈํఔࣜʢݮਰ͋Γʣ Χʔωϧ ϥϓϥγΞϯͷฏۉ ࣌ؒੵ࣍ͷϧϯήΫολ
ྫɿ࣭ྔЛʹΑΔॏྗП ిՙີʹΑΔిͳͲ ⒎U ''5ͰϙΞιϯํఔࣜ ͜͜ʹ࣭ ͓͍ͨ ˜ φ = ˜
ρ kx + ky ϑʔϦΤۭؒͰີЛ͔ΒПΛٻΊɺ ͦΕΛٯ''5͢Δ͜ͱͰɺ࣮ۭؒͷПΛٻΊΔ͜ͱ͕Ͱ͖Δ <>γϛϡϨʔγϣϯఱจֶ r0.7以降でfftが実装されたが現状GPUのみの模様 https://github.com/tensorflow/tensorflow/issues/386 x y J⒎U
·ͱΊ
·ͱΊ ΈࠐΈͰภඍํఔࣜΛղ͍ͨ ৽͘͠Ճ͞ΕͨPQͷ''5Λ͔ͭͬͯΈͨ $16લఏͩͱ͋͑ͯ5FOTPS'MPXͰܭࢉ͢Δཧ༝ͳ͍ͱࢥ͏ (16ͷࢄڥͰਅՁΛൃش͢Δʁ
ࢀߟจݙ 5FOTPS'MPX IUUQTXXXUFOTPSqPXPSH ,B[VOPSJ4BUP IUUQTTQFBLFSEFDLDPNLB[VOPSJDMPVEWJTJPOBQJBOEUFOTPSqPX
8JLJQFEJB IUUQTKBXJLJQFEJBPSHXJLJνϡʔϦϯάɾύλʔϯ ౻Ҫଂ lྲྀମྗֶͷܭࢉ๏z ౦ژେֶग़൛ձ ۔ߒ lඍํఔࣜʹΑΔཧϞσϧͱෳࡶܥz ݱֶࣾ ࡕ࣏ Ֆྠ ३Ұ zݱͷఱจֶγϛϡϨʔγϣϯఱจֶz ຊධࣾ ߐ७ ాܡҰ കଜխ೭ lӉྲྀମྗֶͷجૅz ຊධࣾ $ZSJMMF3PTTBOU ༁٠জ l*1ZUIPOσʔλαΠΤϯεΫοΫϒοΫz ΦϥΠϦʔɾδϟύϯ
͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠