{"id":98221,"date":"2020-10-25T02:42:25","date_gmt":"2020-10-25T00:42:25","guid":{"rendered":"https:\/\/prohoster.info\/blog\/administrirovanie\/kak-stat-uspeshnym-data-sajentistom-i-analitikom-dannyh"},"modified":"2020-11-18T00:58:46","modified_gmt":"2020-11-17T22:58:46","slug":"kak-stat-uspeshnym-data-sajentistom-i-analitikom-dannyh","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/administrirovanie\/kak-stat-uspeshnym-data-sajentistom-i-analitikom-dannyh","title":{"rendered":"Cum s\u0103 devii un data scientist \u0219i analist de date de succes","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/skillfactory\/blog\/524726\/\"><img decoding=\"async\" alt=\"Cum s\u0103 devii un data scientist \u0219i analist de date de succes\" src=\"\/wp-content\/uploads\/2020\/10\/ca01f60e46781ea6c2a7cefb066b4c83.jpeg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><br \/>\nExist\u0103 multe articole despre abilit\u0103\u021bile necesare pentru a fi un bun data scientist sau analist de date, dar \u00een doar c\u00e2teva articole se discut\u0103 despre abilit\u0103\u021bile necesare pentru succes \u2014 fie c\u0103 este vorba de evaluarea excep\u021bional\u0103 a muncii, lauda din partea conducerii, promov\u0103ri sau toate cele men\u021bionate. Ast\u0103zi v\u0103 prezent\u0103m un material al c\u0103rui autor ar dori s\u0103 \u00eemp\u0103rt\u0103\u0219easc\u0103 experien\u021ba sa personal\u0103 de lucru ca data scientist \u0219i analist de date, precum \u0219i ceea ce a \u00eenv\u0103\u021bat pentru a atinge succesul. <br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<p>Am avut noroc: mi s-a oferit o pozi\u021bie de data scientist c\u00e2nd nu aveam nicio experien\u021b\u0103 \u00een Data Science. Cum am gestionat aceast\u0103 sarcin\u0103 este o alt\u0103 poveste, \u0219i vreau s\u0103 spun c\u0103 aveam doar o idee vag\u0103 despre ceea ce face un data scientist p\u00e2n\u0103 c\u00e2nd am acceptat aceast\u0103 munc\u0103. <\/p>\n<p>Am fost angajat\u0103 pentru a lucra la crearea de data pipelines datorit\u0103 lucr\u0103rii mele anterioare ca inginer de procesare a datelor, unde am dezvoltat un data warehouse pentru analize predictive, folosit de un grup de data scientists. <\/p>\n<p>Primul meu an de munc\u0103 ca data scientist a inclus crearea de data pipelines pentru antrenarea modelelor de \u00eenv\u0103\u021bare automat\u0103 \u0219i implementarea acestora \u00een produc\u021bie. Am r\u0103mas \u00een umbr\u0103 \u0219i nu am participat la multe \u00eent\u00e2lniri cu p\u0103r\u021bile interesate din marketing, care erau utilizatorii finali ai modelurilor. <\/p>\n<p>\u00cen al doilea an al activit\u0103\u021bii mele \u00een companie, managerul de procesare \u0219i analiz\u0103 a datelor responsabil de marketing a plecat. De atunci, am devenit persoana principal\u0103 \u0219i am participat mai activ la dezvoltarea modelurilor \u0219i discutarea termenilor de livrare a proiectelor.<\/p>\n<blockquote><p>Pe m\u0103sur\u0103 ce am interac\u021bionat cu p\u0103r\u021bile interesate, am realizat c\u0103 Data Science este un concept vag, despre care oamenii au auzit, dar nu \u00eel \u00een\u021beleg complet, mai ales c\u00e2nd vine vorba de conducerea superioar\u0103.<\/p><\/blockquote>\n<p>\nAm construit peste o sut\u0103 de modele, dar doar o treime dintre ele au fost utilizate, deoarece nu \u0219tiam cum s\u0103 le ar\u0103t valoarea, \u00een ciuda faptului c\u0103 modelele au fost solicitate \u00een primul r\u00e2nd de marketing. <\/p>\n<p>Unul dintre membrii echipei mele a petrecut luni \u00eentregi dezvolt\u00e2nd un model care, conform conducerii superioare, ar demonstra valoarea echipei de data science. Ideea a fost de a extinde acest model \u00een \u00eentreaga organiza\u021bie dup\u0103 ce a fost dezvoltat \u0219i de a \u00eencuraja echipele de marketing s\u0103-l aplice.<\/p>\n<blockquote><p>Acest lucru s-a transformat \u00eentr-un e\u0219ec total, deoarece nimeni nu \u00een\u021belegea ce este un model de \u00eenv\u0103\u021bare automat\u0103 \u0219i nu putea \u00een\u021belege valoarea aplic\u0103rii acestuia. \u00cen cele din urm\u0103, lunile au fost irosite pe ceva ce nimeni nu \u0219i-a dorit.<\/p><\/blockquote>\n<p>\nDin astfel de situa\u021bii am desprins anumite lec\u021bii, pe care le voi prezenta mai jos.<\/p>\n<h2>Lec\u021biile pe care le-am \u00eenv\u0103\u021bat pentru a deveni un data scientist de succes<\/h2>\n<p>\n<b>1. Preg\u0103te\u0219te-te pentru succes aleg\u00e2nd compania potrivit\u0103.<\/b><br \/>\n\u00cen timpul interviului cu compania, \u00eentreab\u0103 despre cultura datelor \u0219i despre c\u00e2te modele de \u00eenv\u0103\u021bare automat\u0103 sunt acceptate \u0219i utilizate \u00een procesul decizional. Cere exemple. Verific\u0103 dac\u0103 infrastructura de date este preg\u0103tit\u0103 pentru a \u00eencepe modelarea. Dac\u0103 \u00ee\u021bi vei petrece 90% din timp \u00eencerc\u00e2nd s\u0103 extragi datele brute \u0219i s\u0103 le cur\u0103\u021bi, nu vei avea aproape deloc timp pentru a construi vreun model pentru a-\u021bi demonstra valoarea ca data scientist. Fii atent dac\u0103 e\u0219ti angajat ca data scientist pentru prima dat\u0103. Poate fi bine sau r\u0103u, \u00een func\u021bie de cultura datelor. Po\u021bi \u00eent\u00e2mpina o mare rezisten\u021b\u0103 la implementarea modelului, dac\u0103 conducerea superioar\u0103 angajeaz\u0103 un specialist \u00een Data Science doar pentru c\u0103 compania vrea s\u0103 fie cunoscut\u0103 ca <i>f\u0103c\u00e2nd utilizare de Data Science pentru a lua cele mai bune decizii<\/i>, dar nu are idee ce \u00eenseamn\u0103 cu adev\u0103rat. \u00cen plus, dac\u0103 g\u0103se\u0219ti o companie care este condus\u0103 de date (data driven), vei cre\u0219te \u00eempreun\u0103 cu ea.<\/p>\n<p><b>2. Cunoa\u0219te datele \u0219i indicatorii cheie de performan\u021b\u0103 (KPI).<\/b><br \/>\nLa \u00eenceput am men\u021bionat c\u0103, fiind inginer de procesare a datelor, am creat un tablou de bord analitic pentru echipa de data science. Fiind acum data scientist, am reu\u0219it s\u0103 g\u0103sesc noi oportunit\u0103\u021bi care au crescut acurate\u021bea modelelor, deoarece am lucrat intens cu datele brute \u00een rolul anterior. <\/p>\n<p>Prezent\u00e2nd rezultatele uneia dintre campaniile noastre, am putut demonstra modele care genereaz\u0103 coeficiente de conversie (procentual), dup\u0103 care a fost m\u0103surat\u0103 una dintre campaniile KPI. Acest lucru a eviden\u021biat valoarea modelului pentru eficien\u021ba afacerii, corelat\u0103 cu marketingul.<\/p>\n<p><b>3. Asigura\u021bi acceptarea modelului ar\u0103t\u00e2ndu-i valoarea p\u0103r\u021bilor interesate<\/b><br \/>\nNu ve\u021bi avea succes ca specialist \u00een Data Science dac\u0103 p\u0103r\u021bile interesate nu vor aplica niciodat\u0103 modelele dvs. pentru a lua decizii de afaceri. O modalitate de a asigura acceptarea modelului este s\u0103 identifica\u021bi o durere de afaceri \u0219i s\u0103 ar\u0103ta\u021bi cum poate ajuta modelul. <\/p>\n<p>Dup\u0103 o discu\u021bie cu departamentul nostru de v\u00e2nz\u0103ri, am realizat c\u0103 doi reprezentan\u021bi lucreaz\u0103 full-time, c\u0103ut\u00e2nd manual milioane de utilizatori \u00een baza de date a companiei pentru a identifica utilizatorii cu licen\u021be unice, care au o probabilitate mai mare de a trece la licen\u021be de echip\u0103. Au fost aplicate un set de criterii pentru selec\u021bie, dar procesul dura mult timp, deoarece reprezentan\u021bii analizau c\u00e2te un utilizator pe r\u00e2nd. Cu ajutorul modelului dezvoltat de mine, reprezentan\u021bii au putut selecta utilizatorii cu cea mai mare probabilitate de a cump\u0103ra o licen\u021b\u0103 de echip\u0103 \u0219i s\u0103 creasc\u0103 \u0219ansele de conversie \u00een mai pu\u021bin timp. Acest lucru a dus la o utilizare mai eficient\u0103 a timpului prin cre\u0219terea coeficientului de conversie pentru indicatorii cheie de performan\u021b\u0103 la care poate avea leg\u0103tur\u0103 departamentul de v\u00e2nz\u0103ri.<\/p>\n<p>Au trecut c\u00e2\u021biva ani \u0219i am dezvoltat \u00een mod repetat acelea\u0219i modele, sim\u021bind c\u0103 nu mai \u00eenv\u0103\u021b nimic nou. Am decis s\u0103 caut o alt\u0103 pozi\u021bie \u0219i \u00een cele din urm\u0103 am ob\u021binut o pozi\u021bie de analist de date. Diferen\u021ba \u00een responsabilit\u0103\u021bi nu ar fi putut fi mai semnificativ\u0103 comparativ cu perioada \u00een care eram data scientist, chiar \u0219i atunci c\u00e2nd sus\u021bineam din nou marketingul.<\/p>\n<p>A fost prima dat\u0103 c\u00e2nd am analizat experimentele A\/B \u0219i am descoperit <i>tot<\/i> Modalit\u0103\u021bile prin care experimentul poate s\u0103 nu decurg\u0103 a\u0219a cum ar trebui. Ca data scientist, nu am lucrat deloc cu testele A\/B, deoarece acestea erau rezervate echipei de experimentare. Am lucrat pe o gam\u0103 larg\u0103 de studii analitice influen\u021bate de marketing \u2014 de la cre\u0219terea ratei de conversie premium p\u00e2n\u0103 la implicarea utilizatorilor \u0219i prevenirea abandonului. Am \u00eenv\u0103\u021bat multe modalit\u0103\u021bi diferite de a vizualiza datele \u0219i am petrecut mult timp compil\u00e2nd rezultatele, prezent\u00e2ndu-le p\u0103r\u021bilor interesate \u0219i conducerii superioare. Ca data scientist, am lucrat \u00een principal la un tip de model \u0219i rar am sus\u021binut prezent\u0103ri. S\u0103ri\u021bi c\u00e2\u021biva ani \u00eenainte \u0219i s\u0103 trecem la abilit\u0103\u021bile pe care le-am \u00eenv\u0103\u021bat pentru a fi un analist de succes.<\/p>\n<h2>Abilit\u0103\u021bile pe care le-am \u00eenv\u0103\u021bat pentru a deveni un analist de date de succes<\/h2>\n<p>\n<b>1. \u00cenva\u021b\u0103 s\u0103 spui pove\u0219ti cu ajutorul datelor<\/b><br \/>\nNu privi KPI-urile de una singur\u0103. Conecteaz\u0103-le, prive\u0219te afacerea ca un \u00eentreg. Acest lucru va ajuta la identificarea domeniilor care se influen\u021beaz\u0103 reciproc. Conducerea superioar\u0103 prive\u0219te afacerea printr-o prism\u0103, iar persoana care demonstreaz\u0103 aceast\u0103 abilitate va fi observat\u0103 atunci c\u00e2nd vine vremea deciziei de promovare.<\/p>\n<p><b>2. Ofer\u0103 idei ac\u021bionabile<\/b><br \/>\nOfer\u0103 afacerii <i>o idee ac\u021bionabil\u0103<\/i> pentru a solu\u021biona o problem\u0103. \u0218i mai bine, dac\u0103 propui proactiv o solu\u021bie \u00eenainte de a fi spus c\u0103 te ocupi de o problem\u0103 prioritar\u0103. <\/p>\n<p>De exemplu, dac\u0103 ai spune echipei de marketing: <i>\u201eAm observat c\u0103, \u00een ultima vreme, num\u0103rul vizitatorilor pe site scade lunar\u201d<\/i>. Aceasta este o tendin\u021b\u0103 pe care ei ar putea s\u0103 o fi observat pe tablou \u0219i nu ai adus nicio solu\u021bie valoroas\u0103 ca analist, pentru c\u0103 doar ai f\u0103cut o observa\u021bie. <\/p>\n<p>\u00cen schimb, analizeaz\u0103 datele pentru a g\u0103si cauza \u0219i propune o solu\u021bie. Cel mai bun exemplu pentru echipa de marketing ar fi: <i>\u201eAm observat c\u0103, \u00een ultima vreme, avem o sc\u0103dere a num\u0103rului de vizitatori pe site-ul nostru. Am descoperit c\u0103 sursa problemei este c\u0103utarea organic\u0103, din cauza unor modific\u0103ri recente care au dus la sc\u0103derea clas\u0103rii noastre \u00een c\u0103ut\u0103rile Google\u201d<\/i>. Aceast\u0103 abordare arat\u0103 c\u0103 ai urm\u0103rit KPI-urile companiei, ai observat o schimbare, ai cercetat cauza \u0219i ai propus o solu\u021bie pentru problem\u0103.<\/p>\n<p><b>3. Devino un consilier de \u00eencredere<\/b><br \/>\nTrebuie s\u0103 deveni\u021bi prima persoan\u0103 la care p\u0103r\u021bile interesate apeleaz\u0103 pentru recomand\u0103ri sau \u00eentreb\u0103ri cu privire la domeniul dumneavoastr\u0103 de activitate. Nu exist\u0103 o cale scurt\u0103, deoarece demonstr\u00e2nd aceste abilit\u0103\u021bi este nevoie de timp. Cheia este furnizarea constant\u0103 de analize de \u00eenalt\u0103 calitate, cu un minim de erori. Orice gre\u0219eal\u0103 \u00een calcule v\u0103 va costa puncte de \u00eencredere, deoarece data viitoare c\u00e2nd ve\u021bi oferi o analiz\u0103, oamenii se vor putea \u00eentreba: <i>Dac\u0103 a\u021bi gre\u0219it data trecut\u0103, poate c\u0103 gre\u0219i\u021bi \u0219i acum?<\/i>. Verifica\u021bi \u00eentotdeauna munca dumneavoastr\u0103 de dou\u0103 ori. De asemenea, nu ar strica s\u0103 cere\u021bi managerului dumneavoastr\u0103 sau unui coleg s\u0103 se uite la cifrele dumneavoastr\u0103 \u00eenainte de a le prezenta, dac\u0103 ave\u021bi vreo \u00eendoial\u0103 cu privire la analiza dumneavoastr\u0103.<\/p>\n<p><b>4. \u00cenv\u0103\u021ba\u021bi s\u0103 transmite\u021bi clar rezultate complexe<\/b><br \/>\nDin nou, nu exist\u0103 o cale scurt\u0103 pentru a \u00eenv\u0103\u021ba comunicarea eficient\u0103. Aceasta necesit\u0103 practic\u0103, iar \u00een timp ve\u021bi deveni mai bun \u00een acest domeniu. Principalul lucru este s\u0103 identifica\u021bi aspectele esen\u021biale ale a ceea ce dori\u021bi s\u0103 face\u021bi \u0219i s\u0103 recomanda\u021bi orice ac\u021biuni pe care, ca rezultat al analizei dumneavoastr\u0103, p\u0103r\u021bile interesate le pot \u00eentreprinde pentru a \u00eembun\u0103t\u0103\u021bi afacerea. Cu c\u00e2t urca\u021bi mai sus pe scara profesional\u0103 \u00een organiza\u021bie, cu at\u00e2t mai important devine abilit\u0103\u021bi de comunicare. Transmiterea rezultatelor complexe este o abilitate important\u0103 pe care trebuie s\u0103 o demonstra\u021bi. Am petrecut ani studiind secretele succesului ca data scientist \u0219i analist de date. Oamenii definesc succesul \u00een mod diferit. A ob\u021bine titluri precum \u201eformidabil\u201d \u0219i \u201eanalist de top\u201d este succesul \u00een ochii mei. Acum, c\u00e2nd cunoa\u0219te\u021bi aceste secrete, sper c\u0103 drumul dumneavoastr\u0103 v\u0103 va duce mai repede la succes, indiferent de cum \u00eel defini\u021bi.<\/p>\n<p>\u0218i pentru ca drumul dumneavoastr\u0103 spre succes s\u0103 fie \u0219i mai rapid, folosi\u021bi codul promo\u021bional <b>HABR<\/b>, prin care pute\u021bi ob\u021bine o reducere suplimentar\u0103 de 10% la discountul men\u021bionat pe banner.<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/skillfactory.ru\/?utm_source=infopartners&amp;utm_medium=habr&amp;utm_campaign=habr_banner&amp;utm_term=regular&amp;utm_content=habr_banner\"><img decoding=\"async\" alt=\"Cum s\u0103 devii un data scientist \u0219i analist de date de succes\" src=\"\/wp-content\/uploads\/2020\/10\/e6693210b17f6d42ad3b67faea20b9d8.jpeg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/p>\n<ul>\n<li><noindex><a rel=\"nofollow\" 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\u0434\u0430\u043d\u043d\u044b\u0445, \u043d\u043e \u043b\u0438\u0448\u044c \u0432 \u043d\u0435\u043c\u043d\u043e\u0433\u0438\u0445 \u0441\u0442\u0430\u0442\u044c\u044f\u0445 \u043f\u0438\u0448\u0443\u0442 \u043e \u043d\u0430\u0432\u044b\u043a\u0430\u0445, \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u044b\u0445 \u0434\u043b\u044f \u0443\u0441\u043f\u0435\u0445\u0430 \u2014 \u0431\u0443\u0434\u044c \u0442\u043e \u0438\u0441\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 \u0440\u0430\u0431\u043e\u0442\u044b, \u043f\u043e\u0445\u0432\u0430\u043b\u0430 \u043e\u0442 \u0440\u0443\u043a\u043e\u0432\u043e\u0434\u0441\u0442\u0432\u0430, \u043f\u043e\u0432\u044b\u0448\u0435\u043d\u0438\u0435, \u0438\u043b\u0438 \u0432\u0441\u0435 \u0432\u044b\u0448\u0435\u043f\u0435\u0440\u0435\u0447\u0438\u0441\u043b\u0435\u043d\u043d\u043e\u0435. \u0421\u0435\u0433\u043e\u0434\u043d\u044f \u043c\u044b \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u043c \u0432\u0430\u043c \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b, \u0430\u0432\u0442\u043e\u0440 \u043a\u043e\u0442\u043e\u0440\u043e\u0433\u043e \u0445\u043e\u0442\u0435\u043b\u0430 \u0431\u044b \u043f\u043e\u0434\u0435\u043b\u0438\u0442\u044c\u0441\u044f \u0441\u0432\u043e\u0438\u043c \u043b\u0438\u0447\u043d\u044b\u043c \u043e\u043f\u044b\u0442\u043e\u043c \u0440\u0430\u0431\u043e\u0442\u044b \u0432 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u0434\u0430\u0442\u0430-\u0441\u0430\u0439\u0435\u043d\u0442\u0438\u0441\u0442\u0430 \u0438 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":98222,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-98221","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2.1 - aioseo.com -->\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/ro\/blog\/administrirovanie\/kak-stat-uspeshnym-data-sajentistom-i-analitikom-dannyh\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.2.1\" \/>\n\t\t<meta property=\"og:locale\" content=\"ro_RO\" \/>\n\t\t<meta property=\"og:site_name\" content=\"ProHoster | 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