ITRA CONF FINAL-FINAL OFFICIAL PROGRAMME ENG-GREEK2final-final
SDY51_GE3_2011-12_Apantisi-final
description
Transcript of SDY51_GE3_2011-12_Apantisi-final
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Bettini et al. (2010) . (feature-based) Korpip et al (2003) (ontology-based) . , .
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key-value, 1 (Bettini et al. (2010), Strang et al. (2004)). Bettini et al. (2010), , ( ) . , (Description Logics), . : 1. (
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. , , . , , . , ( , .. OWL, RDF, ., , .. Wordnet1, SUMO2, .) . , , . , Perttunen et al. (2009), , ( ) . ) 1. Schmidt et al. (1999): , . , , Ultra-Mobile Computing. 2. Korpip et al. (2003): . Key-Value , .. Environment:Sound:Intensity = {Silent, Moderate, Loud}. data interpretation. Bayes. 3. Indulska et al. (2003): . CC/PP (Composite Capability/Preference Profiles) Web browser server. CC/PP - CC/PP, , ( ) 1 http://wordnet.princeton.edu/ 2 http://www.ontologyportal.org/
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. , , ( Strang et al. (2004) CC/PP Markup Scheme Model). 4. Villegas et al. (2010): "" Internet. , . . 5. Jaroucheh et al. (2010): . ( / , top-down ), ( ' , / , bottom-up ). . ) 1. Chen et al. (2004): CoBrA (Context Broker Architecture), . OWL . . . 2. Gu et al. (2004): , , OWL, , , , , . . (Service-Oriented Context-Aware Middleware - SOCAM) . 3. Ranganathan A., Mcgrath R.E. et al. (2004): GAIA. "" . GAIA , , . 4. Gandon et al. (2003): "Semantic e-Wallet" , . , . ,
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5. Roy et al. (2010): . , Bayes, . , (context fusion lower ontology) (context fusion upper ontology). ; ; (location / spatial context) .
(15 ) (uncertainty) ( ) (, ), (/) . , , .. , / , ., . , (.. , , ), (.. ) ( , ) . Ranganathan et al. (2004), , "" , "" , . , ettini et al. (2010), , , . Bettini et al. (2010) Perttunen et al. (2009), . / :
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(.. coverage, resolution, accuracy, repeatability, frequency, timeliness). .
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Bayes (sensor fusion). (.. Hidden Markov Models). . (beliefs), Dempster-Shafer.
. . , : () () . , , , . (.. ) (.. , , .). / . , 5 : 1. Castro et al. (2001): Nibble ( Wi-Fi) Bayes. access points , . Bayes. 2. Hightower et al. (2002): "Location Stack", . , "Fusion" , "Arrangement'' (.. , , .). 3. Ranganathan et al. (2004): (predicate) (confidence values). , ( ) . :
location (jeff, in, room 3105) activity (room 3102, meeting) light (room 3220, dim) office (chetan, room 3216)
, ( office) , ( location activity) . , ..:
prob(location(carol, in, room 3233)) = 0.5 , , , Bayes, .
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4. Korpip et al. (2003): . , :
Context type = Environment: Location: Building Context = Outdoors Confidence = 1.0 Source = Recognition Level 2 Attributes = Confidence = Probability
" ". Bayes .. Outdoor Indoor, " " ( , , (/), .). 5. Roy et al. (2010): Bayes . , , .. (. Exercising Fig. 12), , , ., . 2 (30 )
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, Strobbe et al. (2011).
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: ( Dey et al. (2000)) ( SOUPA (Chen et al. (2004)) (Service oriented architecture)
, 2.
Person Space
Device Eventreceives
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Building
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Elevator
Stairs
IndoorSpace
OutdoorSpace
Room Corridor
containsCor containsCor
connectRoom
hasRooms
existInIS existInOS
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2 Dey et al. (2000). , / ( SoA). , , . Event Time Space,
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, . , (attribute) Person Strobbe et al. (2011) Henricksen et al. (2002). . , , . , (Space, Time, Device, .) ( ) . , Space 3. (Time), . . (Device) , 2, 3. , , 2 2, .
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