Exploratory Sequential Data Analysis (ESDA) Angela Tan M6603 Human Factors Methods
What is ESDA? <ul><li>E xploratory vs Confirmatory </li></ul><ul><li>S equential – ordinal, temporal, pattern </li></ul><u...
Why do we need these patterns? <ul><li>Steelmaker’s problem-solving process (Bainbridge & Sanderson, 1995) </li></ul><ul><...
What is ESDA?  (Sanderson & Fisher,1994) <ul><li>ESDA is any  empirical  undertaking seeking to analyze systems, environme...
In a nutshell <ul><li>ESDA is used when we want to observe what people do over time. </li></ul><ul><li>ESDA is a family of...
How do we do ESDA?
system environmental behavioral events System –  configurations, modes, responses, ouputs Environmental –  work request, i...
The 8 Cs
Some ESDA Techniques (Quantitative) <ul><li>Statistical sequential data analysis </li></ul><ul><li>Markov analysis </li></...
Some ESDA Techniques (Qualitative) <ul><li>Cognitive </li></ul><ul><li>Protocol analysis </li></ul><ul><li>Social </li></u...
An example <ul><li>A C A E F D B C D A C A A E F E  </li></ul><ul><li>F D B C D B C D A A C A E F D A  </li></ul><ul><li>B...
An example <ul><li>A  C A  E F D B C D A  C A  A E F E  </li></ul><ul><li>F D B C D B C D A A  C A  E F D A  </li></ul><ul...
An example <ul><li>A C A  E F  D B C D A C A A  E F   E  </li></ul><ul><li>F  D B C D B C D A A C A  E F  D A  </li></ul><...
Timeline
Lag Sequential Analysis D B C A E F
<ul><li>Theoretical concepts </li></ul><ul><li>notions of usability,  </li></ul><ul><li>models of cognition,  </li></ul><u...
Cognitive Behavioral Social
When do we use ESDA <ul><li>Sequencing and temporal organization of activity is important </li></ul><ul><li>The analyst is...
Thank You!
Confirmatory vs Exploratory
Frequency
Upcoming SlideShare
Loading in …5
×

Exploratory Sequential Data Analysis2

2,485 views

Published on

Angela

Published in: Technology, Education
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
2,485
On SlideShare
0
From Embeds
0
Number of Embeds
42
Actions
Shares
0
Downloads
0
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide
  • Exploratory Sequential Data Analysis2

    1. 1. Exploratory Sequential Data Analysis (ESDA) Angela Tan M6603 Human Factors Methods
    2. 2. What is ESDA? <ul><li>E xploratory vs Confirmatory </li></ul><ul><li>S equential – ordinal, temporal, pattern </li></ul><ul><li>D ata </li></ul><ul><li>A nalysis </li></ul>
    3. 3. Why do we need these patterns? <ul><li>Steelmaker’s problem-solving process (Bainbridge & Sanderson, 1995) </li></ul><ul><li>Interaction of airport ground operations (Suchman & Trigg, 1991) </li></ul><ul><li>Communication sequence between effective and ineffective crews in flight simulation (Bowers, Jentsch, Salas & Bruan, 1998) </li></ul>
    4. 4. What is ESDA? (Sanderson & Fisher,1994) <ul><li>ESDA is any empirical undertaking seeking to analyze systems, environmental, and/or behaviour data (usually recorded) in which the sequential integrity of events has been preserved. The analysis of such data </li></ul><ul><ul><li>(a) represents a quest for their meaning in relation to some research or design question, </li></ul></ul><ul><ul><li>(b) is guided methodologically by one or more traditions of practice, and </li></ul></ul><ul><ul><li>(c) is approached (at least at the outset) in an exploratory mode. </li></ul></ul>
    5. 5. In a nutshell <ul><li>ESDA is used when we want to observe what people do over time. </li></ul><ul><li>ESDA is a family of observational methodologies </li></ul>
    6. 6. How do we do ESDA?
    7. 7. system environmental behavioral events System – configurations, modes, responses, ouputs Environmental – work request, interruptions, network loads Behavioral – eye movement, gestures, talk
    8. 8. The 8 Cs
    9. 9. Some ESDA Techniques (Quantitative) <ul><li>Statistical sequential data analysis </li></ul><ul><li>Markov analysis </li></ul><ul><li>Lag sequential analysis </li></ul><ul><li>Grammatical Techniques </li></ul><ul><li>Probabilistic finite state automata </li></ul><ul><li>Fisher’s cycles </li></ul><ul><li>Maximal repeating patterns </li></ul><ul><li>Regular expressions </li></ul><ul><li>Rewriting </li></ul><ul><li>Comparison Techniques </li></ul><ul><li>Sequential comparisons </li></ul><ul><li>Item comparisons </li></ul>
    10. 10. Some ESDA Techniques (Qualitative) <ul><li>Cognitive </li></ul><ul><li>Protocol analysis </li></ul><ul><li>Social </li></ul><ul><li>Qualitative classification </li></ul><ul><li>Constant comparisons (grounded theory) </li></ul><ul><li>Interaction Analysis </li></ul><ul><li>Visualization techniques </li></ul><ul><li>Indentations </li></ul><ul><li>Tree structures </li></ul><ul><li>Timeline displays </li></ul><ul><li>Link diagrams </li></ul><ul><li>Quasi-realism </li></ul>
    11. 11. An example <ul><li>A C A E F D B C D A C A A E F E </li></ul><ul><li>F D B C D B C D A A C A E F D A </li></ul><ul><li>B A B C A E F D C A E F D B A C </li></ul><ul><li>A D B B C D B B C E F D A A C A </li></ul><ul><li>D A B A C A E F D B C E F E F D </li></ul><ul><li>B C D B C E F E F D A B A C A E </li></ul><ul><li>F E F D </li></ul>
    12. 12. An example <ul><li>A C A E F D B C D A C A A E F E </li></ul><ul><li>F D B C D B C D A A C A E F D A </li></ul><ul><li>B A B C A E F D C A E F D B A C </li></ul><ul><li>A D B B C D B B C E F D A A C A </li></ul><ul><li>D A B A C A E F D B C E F E F D </li></ul><ul><li>B C D B C E F E F D A B A C A E </li></ul><ul><li>F E F D </li></ul>
    13. 13. An example <ul><li>A C A E F D B C D A C A A E F E </li></ul><ul><li>F D B C D B C D A A C A E F D A </li></ul><ul><li>B A B C A E F D C A E F D B A C </li></ul><ul><li>A D B B C D B B C E F D A A C A </li></ul><ul><li>D A B A C A E F D B C E F E F D </li></ul><ul><li>B C D B C E F E F D A B A C A E </li></ul><ul><li>F E F D </li></ul>
    14. 14. Timeline
    15. 15. Lag Sequential Analysis D B C A E F
    16. 16. <ul><li>Theoretical concepts </li></ul><ul><li>notions of usability, </li></ul><ul><li>models of cognition, </li></ul><ul><li>a body of knowledge </li></ul><ul><li>Methodological concepts </li></ul><ul><li>conformity to the scientific method </li></ul><ul><li>appropriate methods of sampling </li></ul>
    17. 17. Cognitive Behavioral Social
    18. 18. When do we use ESDA <ul><li>Sequencing and temporal organization of activity is important </li></ul><ul><li>The analyst is confident that he can make use of the logs to get from the design question to the statement </li></ul><ul><li>Extra time needed in using the technique is worth the effort </li></ul>
    19. 19. Thank You!
    20. 20. Confirmatory vs Exploratory
    21. 21. Frequency

    ×