Capture and Access Ubiquitous Computing Spring 2007 Matthew Lee - - PowerPoint PPT Presentation

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Capture and Access Ubiquitous Computing Spring 2007 Matthew Lee - - PowerPoint PPT Presentation

Capture and Access Ubiquitous Computing Spring 2007 Matthew Lee 02-April-2007 your name Readings Remembrance Agent by Bradley Rhodes Designing Capture Applications to Support the Education of Children with Autism by Gillian R. Hayes, Julie


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Capture and Access

Ubiquitous Computing Spring 2007 Matthew Lee 02-April-2007

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Readings

Remembrance Agent

by Bradley Rhodes

Designing Capture Applications to Support the Education of Children with Autism

by Gillian R. Hayes, Julie A. Kientz, Khai N. Truong, David R. White, Gregory D. Abowd, Trevor Pering

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Remembrance Agent

Software agent monitors in background thread and acts on behalf of the user Remembrance agent senses user’s context and suggests semantically- and contextually- relevant documents, notes, and emails from user’s past

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Remembering

Human memory is associative and contextually-indexed Encoding specificity principle [Tulving 1972] Ubicomp (wearables) can sense context and bring up relevant information

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Wearable Remembrance Agent

Wearable version of desktop remembrance agent Physical location (GPS) People close by (active badge) Time Content/subject Other context? Scenarios Conference notes/names Classroom notes/related readings Others?

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Implementation

100Mhz 486 Twiddler chord keyboard (30-50wpm) Heads up display (80x25 character screen) IR sensors/beacons

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Wearables vs PDA

Portable operation Minimize manual input Sensors Proactive Always on, always running Use anytime, not distracting from user’s task

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Design Issues

Continuous suggestions (noisy) Notification for important message Authoring documents on the fly Retrieving documents automatically and manually Alternative modalities? (Bluetooth headset) Would you use it?

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Readings

Remembrance Agent

by Bradley Rhodes

Designing Capture Applications to Support the Education of Children with Autism

by Gillian R. Hayes, Julie A. Kientz, Khai N. Truong, David R. White, Gregory D. Abowd, Trevor Pering

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Readings

Remembrance Agent

by Bradley Rhodes

Designing Capture Applications to Support the Education of Children with Autism

by Gillian R. Hayes, Julie A. Kientz, Khai N. Truong, David R. White, Gregory D. Abowd, Trevor Pering

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Capture and access for CWA

Therapy for children with autism (CWA) requires recording, storing, and analyzing large amounts of behavioral data Needfinding ethnography of families and teachers of CWA. Duration, Performance, and Narrative data Three prototypes for three different capture and access tasks: Walden Monitor Abaris CareLog

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Walden Monitor

Setting: Evidence-based assessment Capture: 10 sec video of child with autism, wearer’s notes on tablet PC How: head-mounted camera, tablet PC Access: longitudinal snippets of video of a child, synchronized with notes and ratings

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Abaris

Setting: Speech training therapy Capture: Video of session, performance data entered on tablet PC form How: video camera, tablet PC Access: Synchronized performance data and video

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CareLog

Setting: informal logging children’s behavior anywhere, for diagnosis Capture: occurrence of children’s problem behaviors How: distributed architecture, mobile application, personal server, any wireless device as input Access: graphs of behaviors over time, annotations, narratives

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Social implications

Care Cycle

captured data used for diagnosis, goals, intervention, assessment

Need for rich data

indexing data makes it easier to access

Balance of effort / carer burden

costs are often offset by benefit

Privacy and control

public setting, teachers, liability, ok-zones, discrete data

Financial burdens

costly to instrument every environment, automation reduces costs

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Ways to Capture

Good capture is: minimally intrusive pervasively available comprehensive minimally noisy Capture approaches: always-on manually-initiated sensor-initiated experience-buffer

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Allowing Access

Good access: not overwhelming well-organized data easy to find and process important information Access approaches: rapid presentation automatic summarization coordinated data streams annotation search and filters

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Applications “what we can do with sensor data!”

Finding specific information Support episodic memory Share experiences with others Providing evidence Information Permanence Others?