Overview
Bhanditi ane zvombo zvakawanda idambudziko resarudzo apo iwe unodzokorodza kusarudza pakati pezvisarudzo zvine mubhadharo usingazivikanwe uye dzidza sezvaunoenda, kuenzanisa kuongorora sarudzo nyowani pamusoro pekushandisa iyo yakanyanya kunaka inowanikwa. Inopa masimba A/B kuyedza, kurudziro, uye kusarudzwa kwepamhepo ad.
Multi-Armed Bandits inzvimbo yekuvaka yehunyanzvi inobata mhando yemhando, mutengo wezvivakwa, latency, uye kuvimbika pachiyero.
Deep Dive
Iro zita rinobva kune anobhejera akatarisana akati wandei slot machines (one-armed bandits), imwe neimwe ine isingazivikanwe kuhwina mwero, uyo anoda kuwedzera mubairo pane akawanda anodhonza. Iko kunetsa kwepakati ndiko kuongorora-kushandisa tradeoff: ramba uchidhonza ruoko rwunotaridzika zvakanyanya, kana kuenzanisa maoko asina chokwadi kuti udzidze zvakawanda. Kuita kunoyerwa nekuzvidemba, mukaha unowedzera pakati pemibairo yako uye kugara uchitora ruoko rwechokwadi rwechokwadi; yakanaka algorithms inowana kuzvidemba iyo inokura chete logarithmically muhuwandu hwekutenderera. Mazano echinyakare anosanganisira epsilon-anokara (shandisa, asi ongorora chero nekamwe kadiki), Upper Confidence Bound (tora ruoko rune fungidziro yepamusoro), uye Thompson sampling (sample kubva kune imwe neimwe yeruwoko kutenda kwemashure uye tamba mukundi). Contextual mabhanditi anowedzera izvi nekushandisa maficha emamiriro acho kusarudza.
Technical Insight
UCB inomiririra 'tarisiro pasi pekusavimbika': inowedzera bhonasi yekuvimbika, ingangoita sikweya midzi ye (2 ln t pamusoro n_i), kune imwe neimwe ruoko runoreva mubairo, uko t ndiko kutenderera uye n_i nguva ruoko rwandakaedzwa. Kashoma kudhonzwa maoko kuwana bhonasi hombe uye anoongororwa; maoko akaenzanisirwa zvakanaka anovimba nefungidziro yavo. Thompson sampling pachinzvimbo inochengetedza Bayesian posterior paruoko uye inoongorora muchiyero kune mukana ruoko rumwe norumwe rwakakwana.
Mastering Multi-Armed Bandits
Bhanditi ane zvombo zvakawanda idambudziko resarudzo apo iwe unodzokorodza kusarudza pakati pezvisarudzo zvine mubhadharo usingazivikanwe uye dzidza sezvaunoenda, kuenzanisa kuongorora sarudzo nyowani pamusoro pekushandisa iyo yakanyanya kunaka inowanikwa. Inopa masimba A/B kuyedza, kurudziro, uye kusarudzwa kwepamhepo ad. Multi-Armed Bandits inzvimbo yekuvaka yehunyanzvi inobata mhando yemhando, mutengo wezvivakwa, latency, uye kuvimbika pachiyero. Kuvaka kunzwisisa kwakadzama, tora Multi-Armed Bandits semuenzaniso wekushandisa, kwete chinhu chimwe chete: tsanangura zvinodikanwa, kujekesa fungidziro, uye patsanura izvo zvinogona kuitwa nehurongwa hwakavimbika kubva kune izvo zvichiri kuda kutonga kwenyanzvi.
Mukuita, zvikwata zvakasimba zvinoshandisa Multi-Armed Bandits zvinogonesa zvivakwa, data, uye sarudzo dzezvivakwa zvinopesana nekuvimbika uye mutengo. Ivo vanonyora zvakajeka maitiro ebudiriro, bvunzo vachipokana ne data rechokwadi uye mafambiro ebasa, uye iterate zvichibva pane zvakacherechedzwa maitiro ekutadza kwete kuhwina-nguva imwe chete yebhenji. Apa ndipo apo kunzwisisa kwe theoretical kunoshanduka kuve kugona kwakasimba pane chigadzirwa, mutemo, uye mashandiro.
Zvisarudzo zvezvivakwa zvinotyaira kuita uye mutengo wekushandisa kwemakore. Panguva imwecheteyo, Kukwirisa imwe bhenji kunogona kuvanza yakafara system kushaya simba. Nzira yakatsiga ndeyekubatanidza kukurumidza kuyedza nekutonga: mhanyisa vatyairi vendege, tora humbowo, buritsa matanda esarudzo, uye urambe uchivandudza chengetedzo semaitiro emuenzaniso, zvinotarisirwa nemushandisi, uye zvinodikanwa zvekutonga.
Strategic Impact
Zvisarudzo zvezvivakwa zvinotyaira kuita uye mutengo wekushandisa kwemakore.
Zvisarudzo zvezvivakwa zvinotyaira kuita uye mutengo wekushandisa kwemakore. Mukutumirwa kwemhando yepamusoro, izvi zvinoshandurirwa kuita mitemo inoyerwa yekushanda, miganhu yevaridzi, uye tsika dzekudzokorora dzinodzokororwa kuitira kuti zvikwata zvikwire kuvimba pane kukwidza kusajeka.
Dzidzo yehunyanzvi inobatsira zvikwata kusarudza murwi wakakodzera, kwete iwo mutsva chete.
Dzidzo yehunyanzvi inobatsira zvikwata kusarudza murwi wakakodzera, kwete iwo mutsva chete. Mukutumirwa kwemhando yepamusoro, izvi zvinoshandurirwa kuita mitemo inoyerwa yekushanda, miganhu yevaridzi, uye tsika dzekudzokorora dzinodzokororwa kuitira kuti zvikwata zvikwire kuvimba pane kukwidza kusajeka.
Sarudzo dzeinjiniya dziri nani dzinoderedza zviitiko zvekuvimbika mukugadzira.
Sarudzo dzeinjiniya dziri nani dzinoderedza zviitiko zvekuvimbika mukugadzira. Mukutumirwa kwemhando yepamusoro, izvi zvinoshandurirwa kuita mitemo inoyerwa yekushanda, miganhu yevaridzi, uye tsika dzekudzokorora dzinodzokororwa kuitira kuti zvikwata zvikwire kuvimba pane kukwidza kusajeka.
Real-World Implementation
Saiti yenhau inoshandisa makororo kusarudza kuti ndeupi musiyano wemusoro wekuratidza, nekukasira kushandura traffic kune iyo vhezheni inowana mabhatani akawanda.
Yepamhepo ad chikuva inogovera zvinoonekwa kune vese vanogadzira neThompson sampling kuti uwedzere kubaya-kuburikidza uchiri kuyedza kushambadza kutsva.
Chiyedzo chekiriniki chinogadzirisa chinopa varwere vazhinji kurapwa kunoratidza mhedzisiro iri nani, kuderedza kuratidzwa kune yakaderera maoko.
Yekutepfenyura sevhisi tunes ekurudziro zvigunwe pamushandisi wega wega ane mamiriro mabhanditi anoverenga ekuona-nhoroondo maficha.
Maitiro Ekuita
Multi-Armed Bandits mukuita
Saiti yenhau inoshandisa makororo kusarudza kuti ndeupi musiyano wemusoro wekuratidza, nekukasira kushandura traffic kune iyo vhezheni inowana mabhatani akawanda.
Saiti yenhau inoshandisa makororo kusarudza kuti ndeupi musiyano wemusoro wekuratidza, nekukurumidza kushandura traffic kune iyo vhezheni inowana iyo yakanyanya kudzvanya Matimu anowanzo kuwana mhedzisiro iri nani kana achinge atsanangura emhando yepamusoro kumberi, chengetedza nzira yekukwira kwevanhu yemakesi ekumucheto, uye kuteedzera zvese zvakawanikwa zvechigadzirwa uye kukanganisa mutengo nekufamba kwenguva.
Multi-Armed Bandits mukuita
Yepamhepo ad chikuva inogovera zvinoonekwa kune vese vanogadzira neThompson sampling kuti uwedzere kubaya-kuburikidza uchiri kuyedza kushambadza kutsva.
Nzvimbo yekushambadza yepamhepo inogovera zvinoonekwa kune vese vanogadzira neThompson sampson kuti uwedzere kudzvanya-kuburikidza vachiri kuyedza mitsva yekushambadza Matimu anowanzo kuwana mhedzisiro iri nani kana achinge atsanangura mhando yepamusoro kumberi, chengetedza nzira yekukwira kwevanhu yemakesi emupendero, uye kuteedzera zvese zvakawanikwa zvechigadzirwa uye mutengo wekukanganisa nekufamba kwenguva.
Multi-Armed Bandits mukuita
Chiyedzo chekiriniki chinogadzirisa chinopa varwere vazhinji kurapwa kunoratidza mhedzisiro iri nani, kuderedza kuratidzwa kune yakaderera maoko.
Chiyedzo chekiriniki chinochinjika chinopa varwere vazhinji kurapwa kunoratidza mhedzisiro iri nani, kuderedza kuratidzwa kune yakaderera maoko Matimu anowanzo kuwana mhedzisiro iri nani kana achinge atsanangura emhando yepamusoro kumberi, chengetedza nzira yekukwira kwevanhu yemakesi ekumucheto, uye kuteedzera zvese zvakawanikwa zvechigadzirwa uye mutengo wekukanganisa nekufamba kwenguva.
Multi-Armed Bandits mukuita
Yekutepfenyura sevhisi tunes ekurudziro zvigunwe pamushandisi wega wega ane mamiriro mabhanditi anoverenga ekuona-nhoroondo maficha.
Yekutepfenyura sevhisi tunes kurudziro zvigunwe pamushandisi ane mamiriro evapambi anoverenga ekuona-nhoroondo maficha Matimu anowanzo kuwana mhedzisiro iri nani kana achinge atsanangura emhando yepamusoro kumberi, chengetedza nzira yekukwira kwevanhu yemakesi ekumucheto, uye kuteedzera zvese zvakawanikwa zvechigadzirwa uye mutengo wekukanganisa nekufamba kwenguva.
Njodzi & Guardrails
Kugadzirisa imwe bhenji kunogona kuvanza yakafara system kushaya simba.
Infrastructure uye mari yekugadzirisa inowanzotarisirwa pasi.
Chengetedzo uye kucherechedzwa mapundu anogona kukura sezvo masisitimu anowedzera kuoma.
Implementation Roadmap
Tsanangura latency, mhando, uye mutengo zvinangwa usati waitwa.
Tsanangura latency, mhando, uye mutengo zvinangwa usati waitwa. Bata nhanho yega yega segedhi rehumbowo: kana maitiro asina kusangana, imbomira kuburitsa, vhara gaka, uye wobva wawedzera kushandiswa.
Benchmark pasi pechokwadi mutoro uye data mamiriro.
Benchmark pasi pechokwadi mutoro uye data mamiriro. Bata nhanho yega yega segedhi rehumbowo: kana maitiro asina kusangana, imbomira kuburitsa, vhara gaka, uye wobva wawedzera kushandiswa.
Chishandiso chekutarisa zvikanganiso, kudonha, uye mushandisi maitiro.
Chishandiso chekutarisa zvikanganiso, kudonha, uye mushandisi maitiro. Bata nhanho yega yega segedhi rehumbowo: kana maitiro asina kusangana, imbomira kuburitsa, vhara gaka, uye wobva wawedzera kushandiswa.
Gadzirira nzira dzekudzosera kumashure uye dzezviitiko usati wawedzera.
Gadzirira nzira dzekudzosera kumashure uye dzezviitiko usati wawedzera. Bata nhanho yega yega segedhi rehumbowo: kana maitiro asina kusangana, imbomira kuburitsa, vhara gaka, uye wobva wawedzera kushandiswa.