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
360
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
680
Flipperを使ってみた rntb in Japan 2020/05/27
tkow
1
250
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
190
react-beginner
tkow
0
710
tkow-Angular2入門者の会発表資料
tkow
1
13k
Other Decks in Technology
See All in Technology
SSMRunbook作成の勘所_20241120
koichiotomo
2
130
強いチームと開発生産性
onk
PRO
34
11k
信頼性に挑む中で拡張できる・得られる1人のスキルセットとは?
ken5scal
2
530
Why App Signing Matters for Your Android Apps - Android Bangkok Conference 2024
akexorcist
0
120
SREによる隣接領域への越境とその先の信頼性
shonansurvivors
2
520
AGIについてChatGPTに聞いてみた
blueb
0
130
New Relicを活用したSREの最初のステップ / NRUG OKINAWA VOL.3
isaoshimizu
2
590
オープンソースAIとは何か? --「オープンソースAIの定義 v1.0」詳細解説
shujisado
7
790
個人でもIAM Identity Centerを使おう!(アクセス管理編)
ryder472
3
200
RubyのWebアプリケーションを50倍速くする方法 / How to Make a Ruby Web Application 50 Times Faster
hogelog
3
940
OCI Vault 概要
oracle4engineer
PRO
0
9.7k
ドメイン名の終活について - JPAAWG 7th -
mikit
33
20k
Featured
See All Featured
Typedesign – Prime Four
hannesfritz
40
2.4k
A better future with KSS
kneath
238
17k
Unsuck your backbone
ammeep
668
57k
Side Projects
sachag
452
42k
Evolution of real-time – Irina Nazarova, EuRuKo, 2024
irinanazarova
4
370
Facilitating Awesome Meetings
lara
50
6.1k
Code Review Best Practice
trishagee
64
17k
The Invisible Side of Design
smashingmag
298
50k
GraphQLとの向き合い方2022年版
quramy
43
13k
Save Time (by Creating Custom Rails Generators)
garrettdimon
PRO
27
840
Reflections from 52 weeks, 52 projects
jeffersonlam
346
20k
Building a Scalable Design System with Sketch
lauravandoore
459
33k
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