{"id":"https://openalex.org/W3202038667","doi":"https://doi.org/10.1145/3460112.3471970","title":"Poster: Mapping rural marketplaces and tracking their activity using satellite imagery","display_name":"Poster: Mapping rural marketplaces and tracking their activity using satellite imagery","publication_year":2021,"publication_date":"2021-06-28","ids":{"openalex":"https://openalex.org/W3202038667","doi":"https://doi.org/10.1145/3460112.3471970","mag":"3202038667"},"language":"en","primary_location":{"id":"doi:10.1145/3460112.3471970","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3460112.3471970","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ACM SIGCAS Conference on Computing and Sustainable Societies","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/A5055293318","display_name":"Tillmann von Carnap","orcid":null},"institutions":[{"id":"https://openalex.org/I161593684","display_name":"Stockholm University","ror":"https://ror.org/05f0yaq80","country_code":"SE","type":"education","lineage":["https://openalex.org/I161593684"]}],"countries":["SE"],"is_corresponding":true,"raw_author_name":"Tillmann von Carnap","raw_affiliation_strings":["Stockholm University"],"affiliations":[{"raw_affiliation_string":"Stockholm University","institution_ids":["https://openalex.org/I161593684"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5055293318"],"corresponding_institution_ids":["https://openalex.org/I161593684"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.1894295,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"415","last_page":"415"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11711","display_name":"COVID-19 Pandemic Impacts","score":0.9833999872207642,"subfield":{"id":"https://openalex.org/subfields/2002","display_name":"Economics and Econometrics"},"field":{"id":"https://openalex.org/fields/20","display_name":"Economics, Econometrics and Finance"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},"topics":[{"id":"https://openalex.org/T11711","display_name":"COVID-19 Pandemic Impacts","score":0.9833999872207642,"subfield":{"id":"https://openalex.org/subfields/2002","display_name":"Economics and Econometrics"},"field":{"id":"https://openalex.org/fields/20","display_name":"Economics, Econometrics and Finance"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/exploit","display_name":"Exploit","score":0.659092366695404},{"id":"https://openalex.org/keywords/satellite-imagery","display_name":"Satellite imagery","score":0.6082207560539246},{"id":"https://openalex.org/keywords/satellite","display_name":"Satellite","score":0.5376049280166626},{"id":"https://openalex.org/keywords/tracking","display_name":"Tracking (education)","score":0.5371174812316895},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5297573208808899},{"id":"https://openalex.org/keywords/agriculture","display_name":"Agriculture","score":0.5258148908615112},{"id":"https://openalex.org/keywords/pixel","display_name":"Pixel","score":0.4355352520942688},{"id":"https://openalex.org/keywords/focus","display_name":"Focus (optics)","score":0.42924854159355164},{"id":"https://openalex.org/keywords/business","display_name":"Business","score":0.36737382411956787},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.3536093533039093},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.2105633020401001},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.19920891523361206},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.10677322745323181}],"concepts":[{"id":"https://openalex.org/C165696696","wikidata":"https://www.wikidata.org/wiki/Q11287","display_name":"Exploit","level":2,"score":0.659092366695404},{"id":"https://openalex.org/C2778102629","wikidata":"https://www.wikidata.org/wiki/Q725252","display_name":"Satellite imagery","level":2,"score":0.6082207560539246},{"id":"https://openalex.org/C19269812","wikidata":"https://www.wikidata.org/wiki/Q26540","display_name":"Satellite","level":2,"score":0.5376049280166626},{"id":"https://openalex.org/C2775936607","wikidata":"https://www.wikidata.org/wiki/Q466845","display_name":"Tracking (education)","level":2,"score":0.5371174812316895},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5297573208808899},{"id":"https://openalex.org/C118518473","wikidata":"https://www.wikidata.org/wiki/Q11451","display_name":"Agriculture","level":2,"score":0.5258148908615112},{"id":"https://openalex.org/C160633673","wikidata":"https://www.wikidata.org/wiki/Q355198","display_name":"Pixel","level":2,"score":0.4355352520942688},{"id":"https://openalex.org/C192209626","wikidata":"https://www.wikidata.org/wiki/Q190909","display_name":"Focus (optics)","level":2,"score":0.42924854159355164},{"id":"https://openalex.org/C144133560","wikidata":"https://www.wikidata.org/wiki/Q4830453","display_name":"Business","level":0,"score":0.36737382411956787},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.3536093533039093},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.2105633020401001},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.19920891523361206},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.10677322745323181},{"id":"https://openalex.org/C19417346","wikidata":"https://www.wikidata.org/wiki/Q7922","display_name":"Pedagogy","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.0},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.0},{"id":"https://openalex.org/C166957645","wikidata":"https://www.wikidata.org/wiki/Q23498","display_name":"Archaeology","level":1,"score":0.0},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0},{"id":"https://openalex.org/C146978453","wikidata":"https://www.wikidata.org/wiki/Q3798668","display_name":"Aerospace engineering","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/3460112.3471970","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3460112.3471970","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ACM SIGCAS Conference on Computing and Sustainable Societies","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.46000000834465027,"display_name":"Partnerships for the goals","id":"https://metadata.un.org/sdg/17"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W17155033","https://openalex.org/W3207760230","https://openalex.org/W1496222301","https://openalex.org/W1590307681","https://openalex.org/W2536018345","https://openalex.org/W4312814274","https://openalex.org/W4285370786","https://openalex.org/W2296488620","https://openalex.org/W2358353312","https://openalex.org/W2353836703"],"abstract_inverted_index":{"Smallholder":[0],"farmers":[1],"in":[2,20,118],"developing":[3,55],"countries":[4,56],"are":[5],"often":[6],"poorly":[7],"integrated":[8],"into":[9],"broader":[10],"agricultural":[11,29,67],"markets.":[12],"It":[13],"is":[14],"widely":[15],"believed":[16],"that":[17,102],"their":[18],"participation":[19],"the":[21,26,58,66,100,125,135,162],"market":[22],"economy":[23],"would":[24],"pave":[25],"way":[27],"to":[28,37,45,61,84,146,172],"intensification,":[30],"specialization":[31],"and":[32,86,111,128],"development":[33],"of":[34,77,137,148,164,178],"institutional":[35,59],"capacity":[36,60],"address":[38],"farmers\u2019":[39],"specific":[40],"needs.":[41],"However,":[42],"research":[43],"aiming":[44],"understand":[46],"this":[47],"transition":[48],"faces":[49],"an":[50],"intrinsic":[51],"data":[52],"problem:":[53],"few":[54],"have":[57,113],"systematically":[62],"collect":[63],"information":[64],"on":[65,71,134,187],"sector,":[68],"such":[69],"as":[70],"input":[72],"choices,":[73],"production,":[74],"or":[75],"trading":[76],"outputs.":[78],"I":[79,98,143],"develop":[80],"a":[81,108,114,174,184],"novel":[82],"method":[83,168],"detect":[85,144],"monitor":[87],"rural":[88,179],"marketplaces":[89,180],"using":[90],"satellite":[91],"imagery.":[92,121],"Using":[93],"daily":[94],"images":[95],"since":[96],"2016,":[97],"exploit":[99],"facts":[101],"(i)":[103],"markets":[104,150],"typically":[105],"occur":[106],"at":[107],"regular":[109],"periodicity":[110],"(ii)":[112],"distinct":[115],"reflectance":[116,141],"pattern":[117],"high-resolution":[119],"optimal":[120],"The":[122,155,167],"algorithm":[123],"extracts":[124],"market\u2019s":[126],"perimeter":[127],"measures":[129],"activity":[130,156],"within":[131],"it":[132],"based":[133],"density":[136],"pixels":[138],"with":[139,183],"characteristic":[140],"patterns.":[142],"up":[145],"80%":[147],"known":[149],"from":[151],"ground-truthed":[152],"reference":[153],"locations.":[154],"indicators":[157],"display":[158],"intuitive":[159],"variation,":[160],"including":[161],"effects":[163],"Covid-19-related":[165],"lockdowns.":[166],"will":[169],"allow":[170],"me":[171],"provide":[173],"previously":[175],"unavailable":[176],"mapping":[177],"across":[181],"countries,":[182],"current":[185],"focus":[186],"East":[188],"Africa.":[189]},"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
