{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,6,19]],"date-time":"2025-06-19T04:22:06Z","timestamp":1750306926397,"version":"3.41.0"},"reference-count":0,"publisher":"Association for Computing Machinery (ACM)","issue":"4","license":[{"start":{"date-parts":[[2013,2,4]],"date-time":"2013-02-04T00:00:00Z","timestamp":1359936000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.acm.org\/publications\/policies\/copyright_policy#Background"}],"content-domain":{"domain":["dl.acm.org"],"crossmark-restriction":true},"short-container-title":["SIGMOBILE Mob. Comput. Commun. Rev."],"published-print":{"date-parts":[[2013,2,4]]},"abstract":"<jats:p>We present a cloud-based approach to opportunistic, near real-time search of untagged images on smartphones that is sensitive to bandwidth and energy constraints. Our approach is inspired by the long-established practice of photographers using contact sheets to rapidly visualize a new collection of photographs, and then selecting a subset on which to focus attention. On behalf of each smartphone, the cloud maintains a virtual contact sheet of images that have been captured but not yet uploaded. The virtual contact sheet consists of a set of low-fidelity images as well as full or partial meta-data associated with each image. If search processing on the cloud indicates that a particular low-fidelity object is relevant, then its full-fidelity image can be obtained just-in-time from the corresponding smartphone for further search processing or presentation to the user. Our approach is not limited to images, but they provide a convenient query space to test search optimizations.<\/jats:p>","DOI":"10.1145\/2436196.2436203","type":"journal-article","created":{"date-parts":[[2013,2,12]],"date-time":"2013-02-12T14:15:12Z","timestamp":1360678512000},"page":"12-13","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["A contact sheet approach to searching untagged images on smartphones"],"prefix":"10.1145","volume":"16","author":[{"given":"Wolfgang","family":"Richter","sequence":"first","affiliation":[{"name":"Carnegie Mellon University"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kiryong","family":"Ha","sequence":"additional","affiliation":[{"name":"Carnegie Mellon University"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alok","family":"Shankar","sequence":"additional","affiliation":[{"name":"Carnegie Mellon University"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ardalan Amiri","family":"Sani","sequence":"additional","affiliation":[{"name":"Rice University"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jan","family":"Harkes","sequence":"additional","affiliation":[{"name":"Carnegie Mellon University"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lin","family":"Zhong","sequence":"additional","affiliation":[{"name":"Rice University"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mahadev","family":"Satyanarayanan","sequence":"additional","affiliation":[{"name":"Carnegie Mellon University"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"320","published-online":{"date-parts":[[2013,2,4]]},"container-title":["ACM SIGMOBILE Mobile Computing and Communications Review"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/dl.acm.org\/doi\/10.1145\/2436196.2436203","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/dl.acm.org\/doi\/pdf\/10.1145\/2436196.2436203","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,6,18]],"date-time":"2025-06-18T08:35:28Z","timestamp":1750235728000},"score":1,"resource":{"primary":{"URL":"https:\/\/dl.acm.org\/doi\/10.1145\/2436196.2436203"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2013,2,4]]},"references-count":0,"journal-issue":{"issue":"4","published-print":{"date-parts":[[2013,2,4]]}},"alternative-id":["10.1145\/2436196.2436203"],"URL":"https:\/\/doi.org\/10.1145\/2436196.2436203","relation":{},"ISSN":["1559-1662","1931-1222"],"issn-type":[{"type":"print","value":"1559-1662"},{"type":"electronic","value":"1931-1222"}],"subject":[],"published":{"date-parts":[[2013,2,4]]},"assertion":[{"value":"2013-02-04","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}