Kuwedzera-Nguva Yekuedza
Test-time augmentation (TTA) inomhanyisa modhi yakadzidziswa pane akati wandei akachinjirwa mavhezheni eiyo yakafanana yekuisa uye mavhareji ekufungidzira.
Pfupiso
It is a simple, training-free trick that often squeezes out a few extra points of accuracy and makes predictions more robust.
Kudzika Kwakadzika
Yedzero-nguva yekuwedzera inotora imwe chete inopinza, inogadzira akawanda akashandurwa makopi (mafiripi, zvirimwa, kutenderedzwa, mavara ekuchinja, kana akayera shanduro), inomhanyisa imwe neimwe kuburikidza neiyo yakafanana modhi yakagadziriswa, yozobatanidza zvinobuda - kazhinji neavhareji yezvingabvira kana marogi. Iyo intuition: imwe neimwe yekuwedzera inofumura modhi kune maonero akasiyana zvishoma, uye zvikanganiso pamaonero ega ega zvinowanzodzima kana zvabatanidzwa, senge diki ensemble yakavakwa kubva kune imwe network. Nehutsinye, TTA haidi kudzidziswazve uye hapana mamwe mavara; inongodhura yakawanda komputa pakufungidzira nekuti modhi inomhanyisa N nguva pamuenzaniso. Iyo inonyanya kufarirwa muchiratidzo chekombuta (kunyanya makwikwi eKaggle uye kufungidzira kwekurapa) asi zvakare inowanikwa muodhiyo uye zvinyorwa. Iwo mawedzero anofanirwa kuchengetedza iyo label - kupuruzira chipfuva X-ray zvakanaka, asi kupenengura dhijiti '6' kuita '9' hazvisi.
Technical Insight
Kana zvikanganiso zvekufungidzira zvemuenzaniso pane mamwe maonero asina kurongeka, kuenzanisa kunoderedza mutsauko senge ensemble - asi uchishandisa seti imwe yezviremu. Pakurongedza iwe unowanzo avhareji softmax probabilities (kana matanda) pamusoro pemaonero; yezvikamu iwe unofanirwa kushandura yega yega geometric shanduko usati wabatana kuitira kuti pixel mepu igadzirise. Kusarudza label-kuchengetedza augmentations zvine basa: shanduko inoshandura kirasi yechokwadi inopinza rusaruro pane kudzima ruzha.
Strategic Impact
Mutengo uye bhajeti
Zvisarudzo zvezvivakwa zvinotyaira kuita uye mutengo wekushandisa kwemakore.
Sarudzo dzakajeka
Dzidzo yehunyanzvi inobatsira zvikwata kusarudza murwi wakakodzera, kwete iwo mutsva chete.
Kudzora kwemhando yepamusoro
Sarudzo dzeinjiniya dziri nani dzinoderedza zviitiko zvekuvimbika mukugadzira.
Ramangwana reKuedza-Nguva Kuwedzera
Tsvagiridzo iri kuenda kune yakadzidza uye inochinja TTA, uko diki mutemo unotora izvo zvekuwedzera zvinobatsira kune yega yega yekuisa pachinzvimbo chekushandisa yakagadziriswa seti. 'Kukara' uye kusiyanisa kutsvaga kweTTA-policy, pamwe nekusavimbika-kuremerwa avhareji iyo inovimba maonero ane chivimbo zvakanyanya, inzvimbo dzinoshanda. Tarisira kuti TTA isanganise nekuyedza-nguva yekudzidziswa uye yekuzvitarisisa kugadzirisa, kuita kuti mamodheru akaiswa agadzirise kufambiswa kwekuchinja panhunzi uchichengeta chivakwa chinokwezva chekusadzidzirazve.
Real-World Implementation
Avhareji yekufungidzira pamusoro peyakachinjika flips uye zvirimwa zvakawanda zvemufananidzo kuti uwedzere ImageNet kurongedza kurongeka pakufungidzira.
Kutenderedza kutenderedza/kuchinjika uye avhareji yemasiki muchikamu chemifananidzo yezvokurapa (semuenzaniso, bundu kana miganhu yenhengo) yetsanangudzo dzakatsiga.
Kaggle vakwikwidzi vanoshandisa gumi-zvirimwa kana akawanda-zvikero TTA kuti vawane chikamu chezana muzana pabhodhi rekutungamira pasina kudzidziswazve.
Kumhanyisa mataurirwo ekutaura kana maodhiyo ezvikamu zvakachinjika-nguva zvishoma kana kuti-zvinonetsa uye kubatanidza zvinobuda kune mamwe mavara akatsiga.
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.
Benchmark pasi pechokwadi mutoro uye data mamiriro.
Chishandiso chekutarisa zvikanganiso, kudonha, uye mushandisi maitiro.
Gadzirira nzira dzekudzosera kumashure uye dzezviitiko usati wawedzera.
Ramba Uchiongorora
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Gaidhi rinotevera
Kudzidzira Nguva Yekuedza
Mibvunzo inowanzo bvunzwa
What is Test-Time Augmentation?
Test-time augmentation (TTA) inomhanyisa modhi yakadzidziswa pane akati wandei akachinjirwa mavhezheni eiyo yakafanana yekuisa uye mavhareji ekufungidzira. Iyo iri nyore, yekudzidzira-yemahara trick iyo inowanzo svina kunze mashoma ekuwedzera mapoinzi echokwadi uye inoita kuti fungidziro dziwedzere kusimba.
Ndeipi pfungwa yakakosha kumashure kwekuyedza-nguva yekuwedzera?
TTA inodyisa akawanda augmented mavhezheni eimwe yekuisa kuburikidza neiyo imwechete yakadzidziswa modhi uye inounganidza fungidziro, pasina kudzidziswazve kunobatanidzwa.
Sei TTA ichiwanzovandudza kururama?
Avhareji pamusoro pemaonero akati wandei inoita senge ensemble yetiweki imwe, ichideredza musiyano kana zvikanganiso zve-per-view zvisingawirirane.
Ndeipi mari huru yekushandisa TTA?
Nekuti pese pese panopfuudzwa nenetiweki N nguva, fungidziro inova ingangoita N nguva dzinodhura.
Ndeipi sarudzo yekuwedzera inogona KUKURUDZA dhijitari classifier?
Augmentations inofanira kuchengetedza iyo yechokwadi label; kupenengura mamwe madijiti anochinja hunhu hwawo uye zvinounza rusaruro.
Muchikamu, ndeipi nhanho yekuwedzera inodiwa usati waenzanisa zvabuda zveTTA?
Geometric augmentations inofambisa mapixels, saka imwe neimwe inobuda mask inofanira kuchinjwa kudzokera kune yekutanga coordination furemu isati yabatana.