{"id":12991,"date":"2021-06-17T11:00:00","date_gmt":"2021-06-17T14:00:00","guid":{"rendered":"https:\/\/mindthegraph.com\/blog\/?p=12991"},"modified":"2022-10-18T08:09:15","modified_gmt":"2022-10-18T11:09:15","slug":"urban-computing-challenges-big-cities","status":"publish","type":"post","link":"https:\/\/mindthegraph.com\/blog\/ro\/urban-computing-challenges-big-cities\/","title":{"rendered":"Informatic\u0103 urban\u0103: Confruntarea cu marile provoc\u0103ri ale marilor ora\u0219e"},"content":{"rendered":"<p>\u00cen zilele noastre, ora\u0219ele mari se confrunt\u0103 cu probleme importante, cum ar fi congestia traficului, poluarea aerului \u0219i consumul de energie. Aceste probleme majore din ora\u0219ele mari pot fi abordate prin utilizarea <a href=\"https:\/\/en.wikipedia.org\/wiki\/Big_data\"><strong>date mari<\/strong><\/a> (ceea ce \u00eenseamn\u0103 tratarea unor volume mari de date).<\/p>\n\n\n\n<p>Este exact ceea ce este informatica urban\u0103. Aceasta poate fi definit\u0103 simplu ca <em>utilizarea de date mari pentru a face fa\u021b\u0103 problemelor mari ale ora\u0219elor mari<\/em>.<\/p>\n\n\n\n<p>S\u0103 dezvolt\u0103m mai multe despre asta.<\/p>\n\n\n\n<p>Calculul urban implic\u0103 un proces de achizi\u021bie, integrare \u0219i analiz\u0103 a datelor mari \u0219i eterogene generate de diverse surse \u00een spa\u021biile urbane. Astfel de surse de date includ senzori, dispozitive mobile, vehicule, cl\u0103diri \u0219i oameni.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong>Ce este informatica urban\u0103?<\/strong><\/p>\n\n\n\n<p>\u00cen lucrarea intitulat\u0103 \"<a href=\"https:\/\/dl.acm.org\/doi\/10.1145\/2629592\">Informatic\u0103 urban\u0103: concepte, metodologii \u0219i aplica\u021bii<\/a>\", autorii prezint\u0103 un cadru general pentru implementarea calculatoarelor urbane.<\/p>\n\n\n\n<p>Informatica urban\u0103 conecteaz\u0103 tehnologiile de detec\u021bie neintrusive \u0219i omniprezente, gestionarea avansat\u0103 a datelor, modelele analitice \u0219i metodele noi de vizualizare pentru a crea solu\u021bii care s\u0103 \u00eembun\u0103t\u0103\u021beasc\u0103 mediul urban, calitatea vie\u021bii umane \u0219i sistemele de func\u021bionare a ora\u0219elor.<\/p>\n\n\n\n<p>Trebuie s\u0103 subliniem, de asemenea, c\u0103 informatica urban\u0103 este un domeniu interdisciplinar. Acesta integreaz\u0103 \u0219tiin\u021ba informaticii cu alte domenii, cum ar fi transportul, ingineria civil\u0103, economia, ecologia \u0219i sociologia \u00een contextul spa\u021biilor urbane.<\/p>\n\n\n\n<p>Probabil c\u0103 marea \u00eentrebare care v\u0103 b\u00e2ntuie mintea este: cum s\u0103 implement\u0103m Urban computing pentru a dep\u0103\u0219i problemele marilor ora\u0219e?<\/p>\n\n\n\n<p>Ei bine, ve\u0219ti bune, exist\u0103 un cadru pentru asta!<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong>Cadrul informatic urban<\/strong><\/p>\n\n\n\n<p>\u00cen lucrarea intitulat\u0103 \"<a href=\"https:\/\/dl.acm.org\/doi\/10.1145\/2629592\">Informatic\u0103 urban\u0103: concepte, metodologii \u0219i aplica\u021bii<\/a>\", autorii prezint\u0103 un cadru general pentru implementarea calculatoarelor urbane.<\/p>\n\n\n\n<p>Cadrul este compus din patru straturi: Detectarea urban\u0103, gestionarea datelor urbane, analiza datelor \u0219i furnizarea de servicii. Fiecare strat are o func\u021bie specific\u0103.<\/p>\n\n\n\n<p>The <strong>Detec\u021bie urban\u0103<\/strong> este \u00eens\u0103rcinat cu colectarea de date din spa\u021biile urbane. Aceast\u0103 colectare de date poate fi realizat\u0103 prin diferite tehnici, cum ar fi detec\u021bia participativ\u0103, crowdsensing \u0219i detec\u021bia mobil\u0103.<\/p>\n\n\n\n<p>The <strong>Managementul datelor urbane<\/strong> stratul permite organizarea datelor printr-o structur\u0103 de indexare care \u00eencorporeaz\u0103 at\u00e2t informa\u021bii spa\u021bio-temporale, c\u00e2t \u0219i texte pentru a sprijini analiza eficient\u0103 a datelor.<\/p>\n\n\n\n<p>\u00cen<strong> Strat de analiz\u0103 a datelor<\/strong>, diferite tehnici, cum ar fi <a href=\"https:\/\/en.wikipedia.org\/wiki\/Data_mining\">Extrac\u021bia de date<\/a>, <a href=\"https:\/\/en.wikipedia.org\/wiki\/Machine_learning\">\u00cenv\u0103\u021bare automat\u0103<\/a>, \u0219i <a href=\"https:\/\/en.wikipedia.org\/wiki\/Data_visualization\">Vizualizarea datelor<\/a> sunt utilizate pentru a identifica tipare \u00een date \u0219i pentru a ob\u021bine informa\u021bii valoroase din acestea pentru luarea ulterioar\u0103 a deciziilor.<\/p>\n\n\n\n<p>The <strong>Furnizarea de servicii<\/strong> layer cuprinde diverse solu\u021bii \u0219i servicii menite s\u0103 \u00eembun\u0103t\u0103\u021beasc\u0103 experien\u021ba de condus a oamenilor, s\u0103 reduc\u0103 congestionarea traficului, poluarea aerului \u0219i consumul de energie.  De exemplu, \u00een cazul detect\u0103rii oric\u0103rei anomalii de trafic, aceste informa\u021bii vor fi transmise autorit\u0103\u021bii de transport pentru dispersarea traficului \u0219i diagnosticarea anomaliei.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong>A\u0219adar, cu ce provoc\u0103ri se confrunt\u0103 Urban Computing?<\/strong><\/p>\n\n\n\n<p>Pentru o implementare ideal\u0103, Urban Computing se confrunt\u0103 cu trei mari provoc\u0103ri: <\/p>\n\n\n\n<p class=\"has-medium-font-size\">1.<strong>Detec\u021bie \u0219i achizi\u021bie de date.<\/strong><\/p>\n\n\n\n<p>Aceast\u0103 provocare se refer\u0103 la modul de colectare a datelor urbane \u00eentr-un mod neintruziv \u0219i continuu, av\u00e2nd \u00een vedere limit\u0103rile num\u0103rului de senzori distribui\u021bi \u00een ora\u0219.&nbsp;<\/p>\n\n\n\n<p>Construirea de noi infrastructuri de detec\u021bie ar putea atinge obiectivul, \u00eens\u0103 ar cre\u0219te sarcina ora\u0219elor.<\/p>\n\n\n\n<p>Oamenii ca senzori este un nou concept care ar putea contribui la rezolvarea acestei provoc\u0103ri prin utilizarea post\u0103rilor lor pe re\u021belele de socializare sau a urmelor GPS pentru a \u00een\u021belege evenimentele care se petrec \u00een jurul lor.<\/p>\n\n\n\n<p>Oamenii ca senzor aduc noi provoc\u0103ri, cum ar fi:<\/p>\n\n\n\n<ul><li>Utilizarea tot mai mare a energiei dispozitivelor;<\/li><li>Confiden\u021bialitatea informa\u021biilor personale;<\/li><li>Date distorsionate, deoarece utilizatorii nu sunt distribui\u021bi uniform \u0219i nu trimit citirile de detec\u021bie cu aceea\u0219i frecven\u021b\u0103;<\/li><li>Date nestructurate, implicite \u0219i zgomotoase furnizate de utilizatori. \u00cen schimb, datele generate de senzorii tradi\u021bionali sunt bine structurate, explicite, curate \u0219i u\u0219or de \u00een\u021beles.&nbsp;<\/li><\/ul>\n\n\n\n<p class=\"has-medium-font-size\">2. <strong>Date eterogene.<\/strong><\/p>\n\n\n\n<p>Tehnicile de extragere a datelor \u0219i de \u00eenv\u0103\u021bare automat\u0103 trateaz\u0103 de obicei un singur tip de date. Cu toate acestea, rezolvarea provoc\u0103rilor urbane implic\u0103 o gam\u0103 larg\u0103 de factori (de exemplu, explorarea polu\u0103rii aerului implic\u0103 studiul simultan al fluxului de trafic, al meteorologiei \u0219i al utiliz\u0103rii terenurilor).<\/p>\n\n\n\n<p class=\"has-medium-font-size\">3. <strong>Sisteme hibride.<\/strong><\/p>\n\n\n\n<p>Spre deosebire de un motor de c\u0103utare sau de un joc digital, unde datele sunt generate \u0219i consumate \u00een lumea digital\u0103, calculul urban integreaz\u0103 de obicei datele din ambele lumi (combin\u00e2nd traficul cu social media).<\/p>\n\n\n\n<p>Proiectarea sistemelor hibride este mult mai dificil\u0103 dec\u00e2t \u00een cazul sistemelor conven\u021bionale, deoarece sistemul trebuie s\u0103 comunice simultan cu mai multe dispozitive \u0219i utilizatori \u0219i s\u0103 trimit\u0103 \u0219i s\u0103 primeasc\u0103 date \u00een formate diferite.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong>Care sunt principalele aplica\u021bii ale informaticii urbane?<\/strong><\/p>\n\n\n\n<p>Aplica\u021biile informatice urbane ar putea fi nenum\u0103rate.<\/p>\n\n\n\n<p>Aplica\u021biile pot fi grupate \u00een \u0219apte categorii: planificare urban\u0103, transport, mediu, siguran\u021b\u0103 public\u0103 \u0219i securitate, energie, economie, ecologie \u0219i social.<\/p>\n\n\n\n<p>Iat\u0103 o foarte scurt\u0103 descriere a fiec\u0103ruia dintre ele:<\/p>\n\n\n\n<ul><li><strong>Planificare urban\u0103<\/strong>.&nbsp;<\/li><\/ul>\n\n\n\n<p>Planificarea este important\u0103 pentru construirea de ora\u0219e inteligente. Aceast\u0103 categorie include detectarea problemelor care stau la baza re\u021belelor de transport, descoperirea regiunilor func\u021bionale dintr-un ora\u0219 (cum ar fi zonele care sus\u021bin diferite nevoi ale oamenilor \u0219i servesc ca tehnic\u0103 de organizare, cum ar fi zonele educa\u021bionale sau cartierele de afaceri) \u0219i detectarea grani\u021belor ora\u0219ului pentru a \u00een\u021belege evolu\u021bia acestuia.<\/p>\n\n\n\n<ul><li><strong>Transport.<\/strong>&nbsp;<\/li><\/ul>\n\n\n\n<p>Aceast\u0103 categorie include: \u00eembun\u0103t\u0103\u021birea experien\u021bei la volan, servicii de taxi \u0219i sisteme de transport public.<\/p>\n\n\n\n<ul><li><strong>Mediu.<\/strong>&nbsp;<\/li><\/ul>\n\n\n\n<p>Progresul rapid al urbaniz\u0103rii va deveni o poten\u021bial\u0103 amenin\u021bare pentru mediul \u00eenconjur\u0103tor al ora\u0219elor. Calculul urban pentru mediu include: \u00eembun\u0103t\u0103\u021birea calit\u0103\u021bii aerului din ora\u0219e \u0219i reducerea polu\u0103rii fonice.<\/p>\n\n\n\n<ul><li><strong>Siguran\u021ba \u0219i securitatea public\u0103.<\/strong>&nbsp;<\/li><\/ul>\n\n\n\n<p>Aici putem enumera urm\u0103toarele aplica\u021bii: detectarea anomaliilor din trafic, detectarea dezastrelor \u0219i detectarea accidentelor.<\/p>\n\n\n\n<ul><li><strong>Consumul de energie.<\/strong>&nbsp;<\/li><\/ul>\n\n\n\n<p>Progresul rapid al urbaniz\u0103rii consum\u0103 din ce \u00een ce mai mult\u0103 energie. Aplica\u021biile din aceast\u0103 categorie sunt reducerea consumului de gaz \u0219i de electricitate.<\/p>\n\n\n\n<ul><li><strong>Economie.<\/strong>&nbsp;<\/li><\/ul>\n\n\n\n<p>Dinamica unui ora\u0219 poate indica tendin\u021ba economiei ora\u0219ului. Un exemplu de aplica\u021bie din aceast\u0103 categorie este predic\u021bia tendin\u021bei unei pie\u021be bursiere.<\/p>\n\n\n\n<ul><li><strong>Social.<\/strong><\/li><\/ul>\n\n\n\n<p>Aplica\u021biile din aceast\u0103 categorie sunt recomand\u0103rile de loca\u021bie, planificarea itinerariilor, recomandarea de loca\u021bii \u0219i activit\u0103\u021bi \u0219i \u00een\u021belegerea dinamicii ora\u0219elor.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2021\/06\/preview-348518.png\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"768\" src=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2021\/06\/preview-348518-1024x768.png\" alt=\"ora\u0219 verde\" class=\"wp-image-13003\" srcset=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2021\/06\/preview-348518-1024x768.png 1024w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2021\/06\/preview-348518-300x225.png 300w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2021\/06\/preview-348518-768x576.png 768w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2021\/06\/preview-348518-1536x1152.png 1536w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2021\/06\/preview-348518-2048x1536.png 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<p class=\"has-large-font-size\"><strong>Exist\u0103 anumite tehnologii care s\u0103 permit\u0103 utilizarea calculatoarelor urbane?<\/strong><\/p>\n\n\n\n<p>Exist\u0103 mai multe tehnologii generice pentru informatica urban\u0103, care sunt grupate \u00een categorii. Cele mai frecvent utilizate categorii sunt:&nbsp;<\/p>\n\n\n\n<p>Tehnici de detec\u021bie urban\u0103. Detectarea \u0219i m\u0103surarea tradi\u021bional\u0103 prin instalarea de senzori, detectarea pasiv\u0103 a mul\u021bimilor, care utilizeaz\u0103 infrastructura existent\u0103 pentru a colecta datele generate de mul\u021bimi, \u0219i detectarea participativ\u0103, prin care oamenii contribuie activ la informa\u021biile din jurul lor;<\/p>\n\n\n\n<p>Tehnicile de gestionare a datelor urbane permit organizarea mai multor surse de date eterogene pentru urm\u0103torul proces de extragere a datelor;<\/p>\n\n\n\n<p>Tehnicile de fuziune a cuno\u0219tin\u021belor permit fuzionarea eficient\u0103 a cuno\u0219tin\u021belor dob\u00e2ndite din mai multe surse de date eterogene;<\/p>\n\n\n\n<p>Tehnicile de vizualizare a datelor urbane nu ar trebui doar s\u0103 afi\u0219eze datele brute \u0219i s\u0103 prezinte rezultatele, ci trebuie s\u0103 permit\u0103 detectarea \u0219i descrierea modelelor, tendin\u021belor \u0219i rela\u021biilor din date.<\/p>\n\n\n\n<p>Dup\u0103 cum vede\u021bi, informatica urban\u0103 poate fi un instrument foarte util pentru rezolvarea problemelor majore ale ora\u0219elor moderne.<\/p>\n\n\n\n<p>Provoc\u0103rile cu care se confrunt\u0103 informatica urban\u0103 vor fi \u00een cele din urm\u0103 dep\u0103\u0219ite, ceea ce ne va permite s\u0103 avem un viitor mai bun pentru ora\u0219ele noastre.<\/p>\n\n\n\n<p><strong>Referin\u021be<\/strong><\/p>\n\n\n\n<p><a href=\"https:\/\/dl.acm.org\/doi\/10.1145\/2629592\">Zheng, Y., Capra, L., Wolfson, O., &amp; Yang, H. (2014). Urban computing: concepte, metodologii \u0219i aplica\u021bii. <em>ACM Transactions on Intelligent Systems and Technology (TIST)<\/em>, <em>5<\/em>(3), 1-55.<\/a><\/p>\n\n\n\n<p>T.  Kindberg, M. Chalmers \u0219i E. Paulos.  2007.  Introducerea editorilor invita\u021bi:  Urban computing. Pervasive Computing 6, 3, 18-20.<\/p>\n\n\n\n<p><a href=\"https:\/\/ideas.repec.org\/a\/igg\/jksr00\/v7y2016i1p113-119.html\">Torres-Ruiz, Miguel &amp; Lytras, Miltiadis. (2016). Urban Computing and Smart Cities Applications for the Knowledge Society (Informatic\u0103 urban\u0103 \u0219i aplica\u021bii pentru ora\u0219e inteligente pentru societatea cunoa\u0219terii). Jurnalul interna\u021bional de cercetare a societ\u0103\u021bii cunoa\u0219terii. 7. 113-119. 10.4018\/IJKSR.2016010108.<\/a><\/p>\n\n\n\n<p>Face\u021bi clic pe imaginea de mai jos pentru a vedea ilustra\u021biile noastre Mind the Graph pentru calculatoare urbane.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/mindthegraph.com\/app\/illustrations?search=urban%20computing\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"643\" src=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2021\/06\/image-1-1024x643.png\" alt=\"\" class=\"wp-image-13046\" srcset=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2021\/06\/image-1-1024x643.png 1024w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2021\/06\/image-1-300x188.png 300w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2021\/06\/image-1-768x482.png 768w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2021\/06\/image-1.png 1286w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure><\/div>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>\u00cen zilele noastre, ora\u0219ele mari se confrunt\u0103 cu probleme importante, cum ar fi congestia traficului, poluarea aerului \u0219i consumul de energie. Aceste probleme majore din ora\u0219ele mari pot fi abordate prin utilizarea de date mari (care \u00eenseamn\u0103 tratarea unor volume mari de date). Este exact ceea ce reprezint\u0103 informatica urban\u0103. Aceasta poate fi definit\u0103 simplu ca fiind utilizarea de date mari pentru a [...]<\/p>","protected":false},"author":18,"featured_media":13002,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[959,28],"tags":[554,250],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Urban Computing Challenges in Big Cities<\/title>\n<meta name=\"description\" content=\"Urban Computing gathers a large amount of data with the purpose to create solutions that improve the big cities&#039; environment and human life quality.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mindthegraph.com\/blog\/ro\/urban-computing-challenges-big-cities\/\" \/>\n<meta property=\"og:locale\" content=\"ro_RO\" \/>\n<meta property=\"og:type\" 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