{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,8,8]],"date-time":"2024-08-08T01:40:06Z","timestamp":1723081206296},"reference-count":0,"publisher":"Wiley","issue":"2-3","license":[{"start":{"date-parts":[[2000,1,1]],"date-time":"2000-01-01T00:00:00Z","timestamp":946684800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Mobile Information Systems"],"published-print":{"date-parts":[[2006,1]]},"abstract":"<jats:p>Location based or \u201dcontext aware\u201d computing is becoming increasingly recognized as a vital part of a mobile computing environment. As a consequence, the need for location\u2010management middleware is widely recognized and actively researched. Location\u2010management is frequently offered to the application through a \u201clocation API\u201d (e.g. JSR 179) where the mobile unit can find out its own location as coordinates or as \u201cbuilding, floor, room\u201d values. It is then up to the application to map the coordinates into a set of localized variables, e.g. direction to the nearest bookshop or the local timezone. It is the opinion of the authors that a localization API should be more transparent and more integrated: The localized values should be handed to the application directly, and the API for doing so should be the same as the general storage mechanisms. Our proposed middleware for location and context management is built on top of Mobispace. Mobispace is a distributed tuplespace made for mobile units (J2me) where replication between local replicas takes place with a central server (over GPRS) or with other mobile units (using Bluetooth). Since a Bluetooth connection indicates physical proximity to another node, a set of stationary nodes may distribute locality information over Bluetooth connections, and this information may be retrieved through the ordinary tuplespace API. Besides the integration with the general framework for communication and coordination the middleware offers straightforward answers to questions like: <jats:italic>Where is node X located? Which nodes are near me? What is the trace of node Y?<\/jats:italic><\/jats:p>","DOI":"10.1155\/2006\/847256","type":"journal-article","created":{"date-parts":[[2015,1,12]],"date-time":"2015-01-12T13:57:55Z","timestamp":1421071075000},"page":"135-149","update-policy":"http:\/\/dx.doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Location Based Mobile Computing\u2013A Tuplespace Perspective"],"prefix":"10.1155","volume":"2","author":[{"given":"Anders","family":"Fongen","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Christian","family":"Larsen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gheorghita","family":"Ghinea","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Simon J. E.","family":"Taylor","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tacha","family":"Serif","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2006,9,6]]},"container-title":["Mobile Information Systems"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/downloads.hindawi.com\/journals\/misy\/2006\/847256.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1155\/2006\/847256","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,8,8]],"date-time":"2024-08-08T00:55:40Z","timestamp":1723078540000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1155\/2006\/847256"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2006,1]]},"references-count":0,"journal-issue":{"issue":"2-3","published-print":{"date-parts":[[2006,1]]}},"alternative-id":["10.1155\/2006\/847256"],"URL":"https:\/\/doi.org\/10.1155\/2006\/847256","archive":["Portico"],"relation":{},"ISSN":["1574-017X","1875-905X"],"issn-type":[{"type":"print","value":"1574-017X"},{"type":"electronic","value":"1875-905X"}],"subject":[],"published":{"date-parts":[[2006,1]]},"assertion":[{"value":"2006-09-06","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2006-09-06","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2006-09-06","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}