Implicit Human Computer Ineraction Through Context - PowerPoint PPT Presentation

Loading...

PPT – Implicit Human Computer Ineraction Through Context PowerPoint presentation | free to download - id: 7b1733-MjkzM



Loading


The Adobe Flash plugin is needed to view this content

Get the plugin now

View by Category
About This Presentation
Title:

Implicit Human Computer Ineraction Through Context

Description:

Implicit Human Computer Ineraction Through Context Albrecht Schmidt Telecooperation Office(TecO),University of Karlsruhe,Karlsruhe,Germany Personal and Ubiquitous ... – PowerPoint PPT presentation

Number of Views:80
Avg rating:3.0/5.0
Slides: 24
Provided by: 5557
Category:

less

Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: Implicit Human Computer Ineraction Through Context


1
Implicit Human Computer Ineraction Through Context
  • Albrecht Schmidt
  • Telecooperation Office(TecO),University of
    Karlsruhe,Karlsruhe,Germany
  • Personal and Ubiquitous Computing Journal,
    Springer Verlag London, ISSN1617-4909, Volume 4,
    Numbers 2-3 / Juni 2000. DOI10.1007/BF01324126,
    pp. 191-199 (initial version presented at
    MobileHCI1999).

2
outline
  • Introduction
  • Implicit Intercation
  • Perception
  • How Can HCI Benefit from Conext?
  • Conclusion and Further Work

3
Introduction
  • Looking at HCI, it is apparent that interaction
    techniques are limited by the technology
    available
  • In this paper we start with the perception of
    simple concepts and with their exploitation

4
Implicit Interatcion
  • Implicit vs. explicit HCI
  • What is context?
  • Applicatiobs in context
  • Identifying implicit HCI
  • Modelling implicit HCI

5
Implicit vs. explicit HCI
  • The implicit interaction is based on two main
    concepts ?perception ?interpretation
  • Implicit interaction will be used additionally to
    explicit interaction

6
Implicit vs. explicit HCI
  • The ability to have perception of the use, the
    environment, and the circumstances
  • Mechanisms to understand what the sensors see,
    hear and feel
  • Applications that can make use of this information

7
What is context?
  • What is definition of context?
  • In this paper they propose to regard situational
    context, such as location or state of the device,
    as implicit input to the system

8
Applications in context
  • It can be observed that an application
    is ?running on a specific device ?at a certain
    time ?used by one or more users ?in a certain
    physical environment ?in a social setting ?to
    solve a particular task

9
Indentifying implicit HCI
  • What happens around an application while the
    application is in use?
  • Do the surroundings carry any valuable
    information for the application?
  • Are there any means to capture and extract the
    information?
  • How to understand the information?

10
Indentifying implicit HCI
  • 1. create the set C
  • 2. set D
  • 3. for each Ci ? C
  • define Ai. // accuracy
  • define Ui. // update rate
  • identify Si // a sensor device
  • // that is appropriate
  • if cost(Si, Ai, Ui) is acceptable then
  • D D ?( Ci, Si, Ai, Ui)
  • next
  • 4. if D ? then
  • for each vector Di in D
  • define a set of application reaction Ri
    (Iij, Rij)
  • // Iij is input range, application reaction
    pairs Iij
  • // Rij is application reaction
  • else
  • // implicit interaction is not used
  • //(either no condition that are useful or too
    costly)

11
Indentifying implicit HCI
  • 1C is the set of surrounding conditions each
    Ci stands for one condiction
  • 3.If the cost for the identified sensing device
    Di is acceptable,then the vecter describing
    to the set D
  • 4.for each of conditions range values that are
    meaningful are identified and for ranges the
    reaction is defined

12
Modelling implicit HCI
  • lt!ELEMENT context_interaction
  • (context , action )gt
  • lt!ELEMENT context (group )gt
  • lt!ELEMENT group (PCDATA )gt
  • lt!ATTLIST group match
  • (one all none ) REQUIRED gt
  • lt!ELEMENT action (PCDATA )gt
  • lt!ATTLIST action
  • time CDATA 0
  • trigger (enter leave in )
  • REQUIRED gt

Data type definition
13
Modelling implicit HCI
  • ltcontext_interactiongt
  • ltcontextgt
  • ltgroup matchonegt
  • sensor_module.touch
  • pilot.on
  • lt/groupgt
  • ltgroup matchnonegt
  • sensor_module.alone
  • pilot.pen_down
  • lt/groupgt
  • lt/contextgt
  • ltaction triggerenter time3gt
  • pilot.notepad.confidential
  • lt/actiongt
  • lt/context_interactiongt

Context description
14
Perception
  • Context awareness component
  • Sensor board
  • Related work on context sensing

15
Context awareness
component
  • The specific contexts in this paper are based on
    aural information

16
Sensor board
  • They build a context recognition device equipped
    with a light sensor, acceleration sensor, a
    passive infrared sensor, a touch sensor, and a
    temperature sensor

17
Related work on context sensing
  • A cup can aware of its state e.g. warm, cold, on
    table, drinking, moved
  • A jacket that knows if it is on the hanger or
    with user is persented

18
How can HCI benefit from context
  • Output in context
  • Input in context
  • Context notepad on a palmpilot

19
Output in context
  • Adapt the output to the current situation
  • Find the most suitable time interruption
  • Reduce the need for interruptions

20
Input in context
  • adapt the input system to the current situation
  • Limit need for input
  • Reduce selection space

21
Context NotePad on a PalmPilot
  • On/Off
  • Fontsize
  • Backlight
  • Privacy settings

22
Conclusion and Further Work
  • The most important thing that system understands
    as input
  • What happens around the appliction
  • How can this be sensed
  • How to interpret this information

23
Thank you
About PowerShow.com