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The International Symposium  on Wearable Computers Mark the dates ... Submissione due:      April 7 2013 (

The International Symposium  on Wearable Computers Mark the dates ... Submissione due:      April 7 2013 ( papers , notes , or posters ) Conference: September 9-12, 2013 ... and follow us , like us , plus us ... www.iswc.net. `. The 12th International Conference on

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The International Symposium  on Wearable Computers Mark the dates ... Submissione due:      April 7 2013 (

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  1. The International Symposium  onWearable Computers Mark thedates... Submissionedue:     April 7 2013 (papers, notes, orposters) Conference: September 9-12, 2013 ...andfollowus, likeus, plus us...www.iswc.net

  2. ` The 12th International Conference on Mobile andUbiquitous Multimedia Mark thedates... Submission due : Aug 17 (Short andFullPaper), Oct 14 (Posters/Demos) Conference: Dec9–12 ...andfollowus, likeus, plus us...www.mum2013.org

  3. Ulf BlankeWearable Computing Lab - ETH Zürich Human ActivityRecognition... Dagstuhl, 3-7 Dec 2012

  4. What I havebeendoing • Recognizingcompositeactivitiesbydecompositionintoisolatedactivityevents • Wearablemotionsensors • Daily routines, maintenance, orconstructiontasks time continuousdata http://www.ulfblanke.de/research/activity-recognition.html

  5. Other projects Place recognition http://www.ulfblanke.de/research/localization.html

  6. Other projects Location recognition Sleep studies

  7. Other projects Location recognition Improving Kinect’s depth camera Sleep studies Improving the kinect http://www.ulfblanke.de/research/kinect.html

  8. Main challengesfortheactivityrecognitionresearch (as a process) • „Under“-validatedvision • Missingconceptualizationofactivity

  9. 1. „Under“-validatedvision Real worldproblem

  10. 1. „Under“-validatedvision Do weknowthevalueofactivityrecognition? • Weassume (healthcare, industrialtasks...) • Weshouldvalidatemorewith (end!) users  Didwemakeprogresswithrespecttoourvision?

  11. Example: Activities of Daily Living (ADL) • Definition given • So far some of top level ADL are well recognized • Often subset of activities selected • Only 3 to 4 out of 6 top-level categories addressed • Different activities across different papers • ADL aim also at assessing quality of activities performed Did we solve any real world problem by recognizing ADLs? Transcript …though given a precise description of ADL, problem statements remain unsharp, as consequence of inconsistent choice of activities (e.g., one author: brushing teeth, another: showering) and the uncertainty of how solutions impact the application (e.g., quality assessment not addressed, but important for application). Consequently, it’s difficult to evaluate solution proposals to the state of the art…

  12. Transcript Problem definitions are not clear enough Analysis often limited, disallowing deriving new problems. (e.g., good results are emphasized, bad results are hidden  what’s left to improve then) To get the point, let’s look at Activities of Daily Living… Research Cycle 1. Clear problem definition State of the art 2. Analysis Proposal of solution Rosypicture unclear Hard toevaluate

  13. Yes, technicalchallengeshavetobeadressed But: Our real challengeisthevision/application  Togetbeyond a technicalartifact • Toprepareinnovation, impacttosociety • identifynewtopicsforresearch • justificationforresearch (forselectionofactivities)

  14. Excursion: Lean Start up „havingan original visionandthenrefiningandtestingitalongthewaythroughtightlycontrolledexperiments“ „not aboutaskingwhatcustomerswants but testingthe original visionbased on whatcustomers do”

  15. Some Lean Startup principles • Drivenby a compellingvision, andrigorouslytestingeachelementofthisvision. • Vision& motivationisbackedupwithdata • The Lean Startup appliesto all companiesthatfaceuncertaintyaboutwhatcustomerswillwant. • ....

  16. Main challengesfortheactivityrecognitionresearch (as a process) • „Under“-validatedmotivation • Missingconceptualizationofactivity

  17. 2. Missingconceptualizationofactivity Whatis an activity? ActivityTheory (A. N. Leont’ev 1978)* • StructureofactivityJ. Zacks (2001), (Bobick 1997), (Ampft2007)... • Objectorientedness(Philipose2004; Buettner2009)... • Internalizationandexternalization(Craik, 1967) „mental model“ • Mediation(Gibson 1977, Norman 1988) • Development No formal andsufficientexplanationforactivityin activityrecognitionresearch (Recall discussion) *c.f. (Vygotsky, 1978), (Engestro ̈m, 1987) or (Rubinstein, 1957)

  18. Discussion Ourfrontieris not technology but vision/application! • Look forusecases • Don‘trely on intuition: validatewithusers: testthevision. • Activity Recognition + HCI as a field? Is a theoreticalconceptimportant? • Standardizingeffect? • Problem definitioneasier?

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