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
teratail_study
Search
tkow
December 19, 2016
Technology
0
370
teratail_study
first step of understanding machine_learning
tkow
December 19, 2016
Tweet
Share
More Decks by tkow
See All by tkow
React NativeでCross Platform対応を頑張る話
tkow
1
750
Flipperを使ってみた rntb in Japan 2020/05/27
tkow
1
280
開発環境の切り分け方のベストプラクティスが分からない -andfactory20190917-
tkow
0
210
react-beginner
tkow
0
730
tkow-Angular2入門者の会発表資料
tkow
1
14k
Other Decks in Technology
See All in Technology
事業成長の裏側:エンジニア組織と開発生産性の進化 / 20250703 Rinto Ikenoue
shift_evolve
PRO
2
5.5k
Should Our Project Join the CNCF? (Japanese Recap)
whywaita
PRO
0
300
AWS テクニカルサポートとエンドカスタマーの中間地点から見えるより良いサポートの活用方法
kazzpapa3
3
620
AIとともに進化するエンジニアリング / Engineering-Evolving-with-AI_final.pdf
lycorptech_jp
PRO
0
140
FOSS4G 2025 KANSAI QGISで点群データをいろいろしてみた
kou_kita
0
300
KubeCon + CloudNativeCon Japan 2025 Recap
ren510dev
1
320
ドメイン特化なCLIPモデルとデータセットの紹介
tattaka
2
530
asken AI勉強会(Android)
tadashi_sato
0
150
Tech-Verse 2025 Keynote
lycorptech_jp
PRO
0
1.4k
ビギナーであり続ける/beginning
ikuodanaka
3
500
Oracle Cloud Infrastructure:2025年6月度サービス・アップデート
oracle4engineer
PRO
2
310
20250625 Snowflake Summit 2025活用事例 レポート / Nowcast Snowflake Summit 2025 Case Study Report
kkuv
1
370
Featured
See All Featured
Mobile First: as difficult as doing things right
swwweet
223
9.7k
Stop Working from a Prison Cell
hatefulcrawdad
270
20k
Dealing with People You Can't Stand - Big Design 2015
cassininazir
367
26k
Designing Dashboards & Data Visualisations in Web Apps
destraynor
231
53k
Responsive Adventures: Dirty Tricks From The Dark Corners of Front-End
smashingmag
252
21k
Save Time (by Creating Custom Rails Generators)
garrettdimon
PRO
31
1.3k
How STYLIGHT went responsive
nonsquared
100
5.6k
Practical Tips for Bootstrapping Information Extraction Pipelines
honnibal
PRO
20
1.3k
How to Think Like a Performance Engineer
csswizardry
24
1.7k
What’s in a name? Adding method to the madness
productmarketing
PRO
23
3.5k
Adopting Sorbet at Scale
ufuk
77
9.4k
Reflections from 52 weeks, 52 projects
jeffersonlam
351
20k
Transcript
ػցֶशʹຊ֨తೖ͢Δ࣌ ʹ࠷ॳʹԡ͓͖͍͑ͯͨ͜͞ͱ !ULPX
ࣗݾհ ૣҴాେֶઌਐཧֶݚڀՊम࢜ ͖ͬͯͨ͜ͱ ࣗવݴޠॲཧɾ҉߸ཧͳͲ ϨόϨδʔζʹདྷ݄̐ೖࣾ༧ఆ
ϑϧεΫϥονͰΞϧΰϦζϜΛ࣮͍ͯ͠·͢
ػցֶशͰ Կ͕Ͱ͖Δ͔ΛΔ
ҟৗݕ ղ૾ ࠷దઓུ ࣝผ ମೝࣝ ༧ଌ ΫϥελϦϯά ͳͲͳͲʜ
ͦͦԿΛػցʹ͍ͤͯΔͷ͔ ୡͯ͠ཉ͍͠తΛϓϩάϥϛϯά͢Δɻ ίϯϐϡʔλతΛઃఆ͢Δ͜ͱ͕ۤखͳͷͰ ਓ͕ؒࣜͱͯ͠ઃܭͯ͋͛͠Δɻ ਓ͕ؒڭ͑ͳֶͯ͘ͿڧԽֶश༗Γ·͕͢ ༩͑Δਓ͕ؒղ͚ͳͯ͘ྑ͍ɻ ݟ͚͍ͭͨؔੑʹ͍ͭͯίϯϐϡʔλ͕উखʹ ղ͍ͯ͘ΕΔɻ ղ͚ͳ͍͜ͱ͋Δ͚Ͳ
ԿΛษڧ͢Εྑ͍ͷ͔ ϕΠζͷఆཧ ઢܗճؼϞσϧ ֬ ڞࣄલ ࢦ ΧςΰϦΧϧ
χϡʔϥϧωοτ ͜ΕΒΛ͔ͬ͠Γԡ͑͞Δ͚ͩͰݟ௨͕͠ྑ͘ͳΓ·͢ɻ ػցֶशͰ࠷ॳʹԡ͓͖͑ͯࣝ͘͞
ϕΠζͷఆཧ جຊతͳΈ p ( x | ✓ ) ԾఆВͷݩͰY͕ى͜Δ֬
ϕΠζͷఆཧ p(✓| x ) = p( x |✓)p(✓) R
p( x |✓)p(✓)d✓ ԾఆВ ͋ΔԾఆͷ ݩͰಘΒΕͨ σʔλY ಘΒΕͨσʔλ9͔ΒഎޙͷԾఆВΛ ਪఆ͢Δ جຊతͳΈ
ϕΠζͷఆཧ جຊతͳΈ ಘΒΕͨσʔλू߹ͷ͔Β࠷దͳΛਪఆ͢Δ ࠷ ਪఆ ࣄલΛԾఆͯ͠ಘΒΕͨσʔλू߹͔Βࣄલͷ࠷ దͳύϥϝʔλΛਪఆ͢Δ ."1ਪఆ
ಘΒΕͨσʔλू߹͔ΒύϥϝʔλΛपลԽ ϕΠζਪఆ p(✓| x ) = p( x |✓)p(✓) R p( x |✓)p(✓)d✓
ͳͥେࣄ͔ͲΜͳؔͰύϥϝʔλΛ૿ͤۙࣅՄ ೳɻҰԠղੳղ͕ग़ͤΔࣄ͕ଟ͍ ݱ࣮࣌ؒͰղ͚Δͱ ݴ͍ͬͯͳ͍ ɻ ඇઢܗͷϞσϧΛද͢ͷʹઢܗϞσϧ͕ΘΕΔ χϡʔϥ ϧωοτͰɺγάϞΠυؔͳͲͷύϥϝʔλΛઢܗϞ σϧʹಥͬࠐΜͰ͍Δ ɻ
ઢܗϞσϧ y = w0 + w1 1( x ) + · · · + wn n( x )
ϦϯΫؔ ઢܗϞσϧ f (x) = w0 + w1 1(x)
+ . . . + wn n(x) f (x) ϦϯΫؔͱɺઢܗճؼϞσϧΛΈ߹ΘͤΔͱɺϕΠζ ͷఆཧʹͯΊͯɺ࠷ਪఆ."1ਪఆ͕Ͱ͖Δɻ ྫ ɹϦϯΫؔʹMPHJUؔΛͯΊͯ࠷ਪఆΛղ͘ͱϩ δεςΟοΫճؼʹͳΔͳͲ
ͷಛΛԡ͑͞Δͱ͍ΖΜͳσʔλʹର͢Δ༧ଌਪ ఆʹʹཱͪ·͢ ֬ ϕϧψʔΠίΠϯͷදཪͷग़Δ֬ ϕʔλίΠϯͷදཪͷग़Δ͕֬ͲΕ͘Β͍ʹ ͳΔ͔ͷ֬ ΨϯϚਖ਼ͷͷग़͢͞ΛௐઅͰ͖Δ ଟ߲αΠίϩͷͷͲΕ͕ͰΔ͔ͷ σΟϦΫϨαΠίϩͷͷ͕֬ͲΕ͘Β͍ʹ
ͳΔ͔ͷ֬
ͷಛΛԡ͑͞Δͱ͍ΖΜͳσʔλʹର͢Δ༧ଌਪ ఆʹʹཱͪ·͢ ֬ ϕʔλ֬ͷग़͢͞Λௐઅ͢Δ֬
ڞࣄલಛఆͷؔͷੵʹରͯ͠ɺࣄޙͷࣜ ͷܗ͕ಉ͡ࣄલͷ͜ͱɻ ڞࣄલº͕ɺࣄޙͷܗͱಉ͡ʹͳΔ͜ͱΛ ར༻͢Δ͜ͱͰɺࣄޙฏۉͷެࣜΛద༻ͨ͠ΓɺϥϯμϜ αϯϓϦϯάͱݺΕΔख๏Λద༻͘͢͠Δ͜ͱ͕Ͱ͖ Δ σʔλΛਫ૿ͯ͠͠શମͷΛਪఆ͢Δํ๏ ɻ ֬
p ( ✓ | x ) / p ( x | ✓ ) p ( ✓ ) ࣄલ ࣄޙ ϕʔλ㲌ϕϧψʔΠºϕʔλͳͲ
جຊతͳΈ ͋Δϊʔυʹ͓͚ΔೖྗͷΛ׆ੑԽؔͱݺΕΔҙ ͷؔʹΑͬͯɺม͠ɺ࣍ͷೖྗ ग़ྗ ͱ͢Δ ͋ΔϊʔυʹมԽ͕ى͖ͨ࣌ʹશͯͷύϥϝʔλʹٴ΅͢ ӨڹΛࠩͷ࿈Ͱද͢ɻ χϡʔϥϧωοτ x1
x2 x3 f (x)=w1x1+w2x2+w3x3 y= ( f ( x )) y w1 w2 w3
None
None
None
None
༗໊ͳຊ
ࣗવݴޠॲཧ͓͢͢Ίຊ
࣮͓͢͢Ίຊ