Kuvhiringidzika Matrices
A confusion matrix itafura yakapfava inopwanya kufanotaura kwemugadziri kuita maverengero chaiwo uye asiri iwo ekirasi yega yega.
Pfupiso
It is the raw scoreboard from which nearly every other classification metric is calculated.
Kudzika Kwakadzika
A confusion matrix igridi inofananidza mazita akafanotaurwa nemavara chaiwo. Pakuronga kwebhinari ine masero mana: True Positives (zvakafanotaurwa zvakanaka), True Negatives (yakanyatsofanotaurwa zvakaipa), False Positives (negatives yakanyorwa zvisirizvo kuti yakanaka, 'Type I error'), uye False Negatives (positives yakapotswa, 'Type II error'). Kubva panhamba ina idzi unowana huchokwadi ((TP+TN)/total), kunyatsojeka (TP/(TP+FP)), yeuka kana kunzwa (TP/(TP+FN)), chakananga (TN/(TN+FP)), uye F1 chibodzwa (harmonic zvinoreva kurongeka nekurangarira). Kune matambudziko ane anopfuura maviri makirasi, iyo matrix inova N-by-N, uko diagonal inobata fungidziro chaiyo uye off-diagonal masero anoratidza chaizvo kuti ndeapi makirasi anovhiringika kuti ndeapi mamwe.
Technical Insight
Simba rematrix nderekuti rinochengetedza chimiro chezvikanganiso izvo nhamba imwechete yechokwadi inovanza. Mhando mbiri dzakafanana 90% chokwadi dzinogona kuve nemhando dzakasiyana dzenhema-dzisina kunaka, izvo zvinonyanya kukosha kana chirwere chegomarara chakapotsa chinodhura kupfuura alarm yenhema. Nemitsara yekokorodzano kazhinji inomiririra makirasi echokwadi uye makoramu akafanotaurwa makirasi (kunyangwe mamwe maraibhurari achipepeta izvi), saka gara uchitarisa ma axis labels usati waita computing chaiyo maringe nekurangarira kubva kumaseru.
Strategic Impact
Sarudzo dzakajeka
Inokubatsira kuparadzanisa zvakajeka zvichemo zvehunyanzvi kubva mumutauro wekushambadzira.
Mutengo uye bhajeti
Iwe unogona kubvunza zvirinani kuita mibvunzo usati washandisa mari kana nguva.
Team uye workflow
Zvikwata zvine nzwisiso yakagovaniswa inoita zvirinani chigadzirwa, mutemo, uye sarudzo dzekudzidza.
Ramangwana Renyonganiso Matrices
Kuvhiringika matrices acharamba ari pahwaro, asi maturusi arikuita kuti apfume: anodyidzana, akajairwa kupisa mepu, kuparara kwekirasi-yega-yega yemaseti makuru emalebula, uye anorema-anorema matrices ayo anowedzera imwe neimwe mhando yekukanganisa nechirango chayo chenyika chaiyo. Mukuongorora kwakaringana, varapi ikozvino vanounganidza akaparadzana matrices enyonganiso paboka revanhu kuti vafumure mazinga asina kuenzana ezvikanganiso. Tarisira kuenderera mberi kubatanidzwa mumadhibhodhi emodhi apo kudzvanya sero kunosangana nemienzaniso yakasarudzika kuti iongororwe.
Real-World Implementation
Kuongorora uko mugadziri wemufananidzo anotadza nekuona kuti anowanzo kuvhiringa huskies nemhumhi mumaseru asina diagonal.
Kuongorora chishandiso chekurapa chekuongorora nekuongorora nhema dzisina kunaka - varwere vane chirwere iyo modhi yakaziviswa hutano
Kuenzanisa maviri e-mail spam mafirita anogovera kurongeka kwakafanana asi akasiyana mune mangani eemail chaiwo avanovharisa zvisizvo (yenhema positives)
Kuongorora-akawanda-kirasi-yakanyorwa-madhijiti inocherekedza kuti uwane kuti 4s uye 9s vanowanzo kanganisa kune mumwe nemumwe.
Njodzi & Guardrails
Zvikwata zvakasiyana zvinogona kushandisa izwi rimwechete zvakasiyana, saka tsanangura nzvimbo nekukurumidza.
Benchmarks inogona kutaridzika yakasimba nepo chaiyo-yenyika kuita isina kuenzana.
Kuregeredza mhando yedata uye zvirongwa zvekuongorora zvinowanzogadzira mhedzisiro isina kusimba.
Implementation Roadmap
Tanga netsanangudzo yemutauro wakajeka yemhedzisiro yaunoda.
Sarudza metric imwe yekubudirira uye imwe yekutadza mamiriro usati waedzwa.
Mhanya mutyairi mudiki ane data remumiriri, kwete demo rakakwenenzverwa.
Gwaro uko Kuvhiringidzika Matrices kunobatsira uye uko nzira dzakareruka dziri nani.
Ramba Uchiongorora
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Gaidhi rinotevera
Cross-Validation
Mibvunzo inowanzo bvunzwa
What is Confusion Matrices?
A confusion matrix itafura yakapfava inopwanya kufanotaura kwemugadziri kuita maverengero chaiwo uye asiri iwo ekirasi yega yega. Ndiyo bhodhi rezvibodzwa kubva parinoda mamwe ese emhando metric akaverengerwa.
Mune bhinari yekuvhiringidzika matrix, chii chinonzi Nhema Negative?
A Nhema Negative ichokwadi chaiyo iyo modhi yakapotsa nekuitumidza kuti haina kunaka - semuenzaniso, murwere ainzi ane hutano.
Ndeipi metric inoyera chikamu chemapositi chaiwo ayo modhi inonyatso ratidza?
Recall (inonziwo senitivity kana chiyero chechokwadi chakanaka) iTP / (TP + FN) - mugove wezvakanaka chaizvo izvo muenzaniso wakabatwa.
Mune kuvhiringidzika matrix yedambudziko nemakirasi mashanu, masero e diagonal anomiririrei?
Mune N-by-N matrix iyo diagonal inobata zviitiko apo kirasi yakafanotaurwa inofanana nekirasi yechokwadi - kureva, kufanotaura chaiko.
Sei kururama kwega kuchigona kutsausa pasina nyonganiso matrix?
Mienzaniso miviri nekururama kwakafanana inogona kugovera kukanganisa kwavo zvakasiyana zvikuru; iyo confusion matrix inoburitsa pachena kana zvikanganiso zvakanyanya maalarm emanyepo kana akapotsa positives.
Iyo F1 mamakisi ndiyo inonzi harmonic yeapi maviri metrics?
F1 inosanganisa kurongeka uye kuyeuka kuita nhamba imwe uchishandisa iyo harmonic zvinoreva, iyo inoranga kusaenzana kukuru pakati pezviviri.