{"id":"https://openalex.org/W2002727242","doi":"https://doi.org/10.1145/2750858.2804292","title":"A mixed-methods study of mobile users' data usage practices in South Africa","display_name":"A mixed-methods study of mobile users' data usage practices in South Africa","publication_year":2015,"publication_date":"2015-09-07","ids":{"openalex":"https://openalex.org/W2002727242","doi":"https://doi.org/10.1145/2750858.2804292","mag":"2002727242"},"language":"en","primary_location":{"id":"doi:10.1145/2750858.2804292","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2750858.2804292","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2015 ACM International Joint Conference on Pervasive and Ubiquitous Computing","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5062858111","display_name":"Arunesh Mathur","orcid":"https://orcid.org/0000-0002-3719-676X"},"institutions":[{"id":"https://openalex.org/I66946132","display_name":"University of Maryland, College Park","ror":"https://ror.org/047s2c258","country_code":"US","type":"education","lineage":["https://openalex.org/I66946132"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Arunesh Mathur","raw_affiliation_strings":["University of Maryland, College Park"],"affiliations":[{"raw_affiliation_string":"University of Maryland, College Park","institution_ids":["https://openalex.org/I66946132"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5057774600","display_name":"Brent Schlotfeldt","orcid":"https://orcid.org/0000-0002-2016-6492"},"institutions":[{"id":"https://openalex.org/I66946132","display_name":"University of Maryland, College Park","ror":"https://ror.org/047s2c258","country_code":"US","type":"education","lineage":["https://openalex.org/I66946132"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Brent Schlotfeldt","raw_affiliation_strings":["University of Maryland, College Park"],"affiliations":[{"raw_affiliation_string":"University of Maryland, College Park","institution_ids":["https://openalex.org/I66946132"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5065790866","display_name":"Marshini Chetty","orcid":"https://orcid.org/0000-0003-0804-6110"},"institutions":[{"id":"https://openalex.org/I66946132","display_name":"University of Maryland, College Park","ror":"https://ror.org/047s2c258","country_code":"US","type":"education","lineage":["https://openalex.org/I66946132"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Marshini Chetty","raw_affiliation_strings":["University of Maryland, College Park"],"affiliations":[{"raw_affiliation_string":"University of Maryland, College Park","institution_ids":["https://openalex.org/I66946132"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5062858111"],"corresponding_institution_ids":["https://openalex.org/I66946132"],"apc_list":null,"apc_paid":null,"fwci":3.8132,"has_fulltext":false,"cited_by_count":43,"citation_normalized_percentile":{"value":0.93688608,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":94,"max":99},"biblio":{"volume":null,"issue":null,"first_page":"1209","last_page":"1220"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12238","display_name":"Green IT and Sustainability","score":0.9998000264167786,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T12238","display_name":"Green IT and Sustainability","score":0.9998000264167786,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13194","display_name":"ICT in Developing Communities","score":0.9926000237464905,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11478","display_name":"Caching and Content Delivery","score":0.9886000156402588,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.706929087638855},{"id":"https://openalex.org/keywords/mobile-phone","display_name":"Mobile phone","score":0.6815067529678345},{"id":"https://openalex.org/keywords/the-internet","display_name":"The Internet","score":0.6398035287857056},{"id":"https://openalex.org/keywords/usage-data","display_name":"Usage data","score":0.5803464651107788},{"id":"https://openalex.org/keywords/mobile-broadband","display_name":"Mobile broadband","score":0.5492203831672668},{"id":"https://openalex.org/keywords/mobile-web","display_name":"Mobile Web","score":0.5123854279518127},{"id":"https://openalex.org/keywords/mobile-internet","display_name":"Mobile internet","score":0.479107141494751},{"id":"https://openalex.org/keywords/mobile-device","display_name":"Mobile device","score":0.47017186880111694},{"id":"https://openalex.org/keywords/internet-privacy","display_name":"Internet privacy","score":0.4617370069026947},{"id":"https://openalex.org/keywords/mobile-computing","display_name":"Mobile computing","score":0.4533138573169708},{"id":"https://openalex.org/keywords/mobile-telephony","display_name":"Mobile telephony","score":0.42956024408340454},{"id":"https://openalex.org/keywords/mobile-technology","display_name":"Mobile technology","score":0.42792239785194397},{"id":"https://openalex.org/keywords/world-wide-web","display_name":"World Wide Web","score":0.40716028213500977},{"id":"https://openalex.org/keywords/data-science","display_name":"Data science","score":0.3729877471923828},{"id":"https://openalex.org/keywords/mobile-radio","display_name":"Mobile radio","score":0.18808287382125854},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.17848333716392517},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.09699678421020508}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.706929087638855},{"id":"https://openalex.org/C2777421447","wikidata":"https://www.wikidata.org/wiki/Q17517","display_name":"Mobile phone","level":2,"score":0.6815067529678345},{"id":"https://openalex.org/C110875604","wikidata":"https://www.wikidata.org/wiki/Q75","display_name":"The Internet","level":2,"score":0.6398035287857056},{"id":"https://openalex.org/C2781353284","wikidata":"https://www.wikidata.org/wiki/Q7901676","display_name":"Usage data","level":2,"score":0.5803464651107788},{"id":"https://openalex.org/C78834623","wikidata":"https://www.wikidata.org/wiki/Q640394","display_name":"Mobile broadband","level":3,"score":0.5492203831672668},{"id":"https://openalex.org/C516764902","wikidata":"https://www.wikidata.org/wiki/Q1043805","display_name":"Mobile Web","level":4,"score":0.5123854279518127},{"id":"https://openalex.org/C2985706004","wikidata":"https://www.wikidata.org/wiki/Q1043805","display_name":"Mobile internet","level":3,"score":0.479107141494751},{"id":"https://openalex.org/C186967261","wikidata":"https://www.wikidata.org/wiki/Q5082128","display_name":"Mobile device","level":2,"score":0.47017186880111694},{"id":"https://openalex.org/C108827166","wikidata":"https://www.wikidata.org/wiki/Q175975","display_name":"Internet privacy","level":1,"score":0.4617370069026947},{"id":"https://openalex.org/C144543869","wikidata":"https://www.wikidata.org/wiki/Q2738570","display_name":"Mobile computing","level":2,"score":0.4533138573169708},{"id":"https://openalex.org/C95491727","wikidata":"https://www.wikidata.org/wiki/Q992968","display_name":"Mobile telephony","level":3,"score":0.42956024408340454},{"id":"https://openalex.org/C60952562","wikidata":"https://www.wikidata.org/wiki/Q6887246","display_name":"Mobile technology","level":3,"score":0.42792239785194397},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.40716028213500977},{"id":"https://openalex.org/C2522767166","wikidata":"https://www.wikidata.org/wiki/Q2374463","display_name":"Data science","level":1,"score":0.3729877471923828},{"id":"https://openalex.org/C2781307350","wikidata":"https://www.wikidata.org/wiki/Q6887221","display_name":"Mobile radio","level":2,"score":0.18808287382125854},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.17848333716392517},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.09699678421020508}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1145/2750858.2804292","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2750858.2804292","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2015 ACM International Joint Conference on Pervasive and Ubiquitous Computing","raw_type":"proceedings-article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.709.3047","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.709.3047","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://marshini.net/uploads/2/0/6/8/20687796/mobile_data15.pdf","raw_type":"text"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320306076","display_name":"National Science Foundation","ror":"https://ror.org/021nxhr62"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":30,"referenced_works":["https://openalex.org/W1658908529","https://openalex.org/W1762254270","https://openalex.org/W1963683149","https://openalex.org/W1983750266","https://openalex.org/W1984662094","https://openalex.org/W1997390954","https://openalex.org/W2010653253","https://openalex.org/W2016124574","https://openalex.org/W2052089314","https://openalex.org/W2067481044","https://openalex.org/W2071557224","https://openalex.org/W2075743842","https://openalex.org/W2083261093","https://openalex.org/W2095093693","https://openalex.org/W2097281067","https://openalex.org/W2098105926","https://openalex.org/W2098908098","https://openalex.org/W2119145204","https://openalex.org/W2119877162","https://openalex.org/W2121895216","https://openalex.org/W2124945326","https://openalex.org/W2142471787","https://openalex.org/W2145743540","https://openalex.org/W2147748684","https://openalex.org/W2151973791","https://openalex.org/W2167387045","https://openalex.org/W2171333544","https://openalex.org/W2200419100","https://openalex.org/W2906151105","https://openalex.org/W3022452870"],"related_works":["https://openalex.org/W2142667491","https://openalex.org/W2031147312","https://openalex.org/W2047117180","https://openalex.org/W1753961334","https://openalex.org/W400959865","https://openalex.org/W3121974624","https://openalex.org/W2064514336","https://openalex.org/W2249843231","https://openalex.org/W2097171608","https://openalex.org/W2014862338"],"abstract_inverted_index":{"With":[0],"a":[1,28,41,62],"shift":[2],"towards":[3],"usage-based":[4,44],"billing,":[5],"the":[6,111,124],"questions":[7],"of":[8,31,70],"how":[9,17,123],"data":[10,21,35,50,72,86,104,140],"costs":[11,51],"affect":[12],"mobile":[13,20,32,91,103,112],"Internet":[14,92,113],"use":[15],"and":[16,48,68,97,126],"users":[18,93,133],"manage":[19,138],"arise.":[22],"In":[23],"this":[24],"paper,":[25],"we":[26,121],"describe":[27],"mixed-methods":[29],"study":[30],"phone":[33],"users'":[34],"usage":[36,73,105],"practices":[37],"in":[38,81],"South":[39],"Africa,":[40],"country":[42],"where":[43,49],"billing":[45],"is":[46,87],"prevalent":[47],"are":[52,94],"high,":[53],"to":[54,101,114,136,141],"answer":[55],"these":[56,119],"questions.":[57],"We":[58],"do":[59],"so":[60],"using":[61],"large":[63],"scale":[64],"survey,":[65],"in-depth":[66],"interviews,":[67],"logs":[69],"actual":[71],"over":[74],"time.":[75],"Our":[76],"findings":[77],"suggest":[78,122],"that":[79,134],"unlike":[80],"more":[82],"developed":[83],"settings,":[84],"when":[85],"limited":[88],"or":[89],"expensive,":[90],"extremely":[95],"cost-conscious,":[96],"employ":[98],"various":[99],"strategies":[100],"optimize":[102,142],"such":[106],"as":[107],"actively":[108],"disconnecting":[109],"from":[110],"save":[115],"data.":[116],"Based":[117],"on":[118],"findings,":[120],"Ubicomp":[125],"related":[127],"research":[128],"communities":[129],"can":[130],"better":[131],"support":[132],"need":[135],"carefully":[137],"their":[139],"costs.":[143]},"counts_by_year":[{"year":2024,"cited_by_count":2},{"year":2022,"cited_by_count":7},{"year":2021,"cited_by_count":5},{"year":2020,"cited_by_count":7},{"year":2019,"cited_by_count":3},{"year":2018,"cited_by_count":8},{"year":2017,"cited_by_count":5},{"year":2016,"cited_by_count":6}],"updated_date":"2026-04-05T17:49:38.594831","created_date":"2025-10-10T00:00:00"}
