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The Role of Adaptive Elements in Web-Based Surveillance System User Interfaces

The Role of Adaptive Elements in Web-Based Surveillance System User Interfaces. Ricardo Lage, Peter dolog , and Martin Leginus. dolog@cs.aau.dK. Outline. Motivation Task Evaluation Set Up Initial System GUI Evaluation Resutls New System GUI Results Conlusions. Motivation.

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The Role of Adaptive Elements in Web-Based Surveillance System User Interfaces

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  1. The Role of Adaptive Elements in Web-BasedSurveillance System User Interfaces Ricardo Lage, Peter dolog, and Martin Leginus dolog@cs.aau.dK

  2. Outline Motivation Task Evaluation Set Up Initial System GUI Evaluation Resutls New System GUI Results Conlusions The Role of Adaptive Elements in Web-BasedSurveillance System User Interfaces – 9. July 2014 IntellingeNt Web and Information Systems, Department of Computer Science AALBORG UNIVERSITET

  3. Motivation Task of epidemicsurveilence Monitoring official sources Monitoring social media not so common Support for exploring a large number of indications and signals Signals – aggregates of information items (tweets, messages, …) with number over certain treshold Thereareonlyveryfew studies of user interfaces in general and no adaptive user interfaces in particular The Role of Adaptive Elements in Web-Based Surveillance System User Interfaces – 9. July 2014 Intellinget Web and Information Systems, Department of Computer Science AALBORG UNIVERSITET

  4. Task Build a system which supports a survailance on social media Evaluatethe system with experts Based on evaluationbuild an improved version Evaluate in the secondround Context: Meco FP7 EU project The Role of Adaptive Elements in Web-Based Surveillance System User Interfaces – 9. July 2014 Intellinget Web and Information Systems, Department of Computer Science AALBORG UNIVERSITET

  5. Evaluation set-up: Focus Group 8 participants – survailenceexperts/representatives of international epidemicsorganizations Asked to create signales of theirinterests The system thenproducedrecommendations Afterthey have browsed the recommended signals and documentswe have conducted the focusgroup with thesequestions: • How would recommendations help you deal with the excess of information you mightreceive? • How would you like to evaluate the recommendations you receive? • How should the recommendations be placed in the system? Discussiontookone and halfhour Goal: to discuss and learnhow to present recommendations in the surveilencetask The Role of Adaptive Elements in Web-Based Surveillance System User Interfaces – 9. July 2014 Intellinget Web and Information Systems, Department of Computer Science AALBORG UNIVERSITET

  6. Initial Prototype/Signal Definition The Role of Adaptive Elements in Web-Based Surveillance System User Interfaces – 9. July 2014 Intellinget Web and Information Systems, Department of Computer Science AALBORG UNIVERSITET

  7. Initial Prototype/Signals and Documents The Role of Adaptive Elements in Web-Based Surveillance System User Interfaces – 9. July 2014 Intellinget Web and Information Systems, Department of Computer Science AALBORG UNIVERSITET

  8. Initial Prototype/Navigation The Role of Adaptive Elements in Web-Based Surveillance System User Interfaces – 9. July 2014 Intellinget Web and Information Systems, Department of Computer Science AALBORG UNIVERSITET

  9. Results Useful: • Tag clouduseful • Rating of signals important To improve: • Search process • Information theyprovided • Content organization • Users shouldbeable to assign new tags • Relevancy and irrelevancy of tags shouldbeexposed The Role of Adaptive Elements in Web-Based Surveillance System User Interfaces – 9. July 2014 Intellinget Web and Information Systems, Department of Computer Science AALBORG UNIVERSITET

  10. Answers to questions Q1: The system advisesthemaboutmissing information – helpthem to discover topics relevant to theirinterest, not exact match Q1: Recommendationshelp in overload Q2: Agreed on usefulness of signal evaluations Q2: Same options as for signal evaluationshouldbeavailablealso for documents Q2: Options for re-rankingshouldbeavailable Q2: Dislike option shouldbeavailable Q3: Recommendation or recommended signal as a term is not veryappropriate; instead ”related signals” couldbeused => theywouldlike to know reasonfor recommendations The Role of Adaptive Elements in Web-Based Surveillance System User Interfaces – 9. July 2014 Intellinget Web and Information Systems, Department of Computer Science AALBORG UNIVERSITET

  11. New GUI/Map The Role of Adaptive Elements in Web-Based Surveillance System User Interfaces – 9. July 2014 Intellinget Web and Information Systems, Department of Computer Science AALBORG UNIVERSITET

  12. New GUI/Signal Listing The Role of Adaptive Elements in Web-Based Surveillance System User Interfaces – 9. July 2014 Intellinget Web and Information Systems, Department of Computer Science AALBORG UNIVERSITET

  13. Factors in similaritycalculations 1. the user rules and the contents of each signal’s documents; 2. the user rules and the properties (i.e., disease and location values) of each signal; 3. the user’s specific rules for locations, similar locations and each signal’s documents; 4. the user’s specific rules for locations, similar locations and the locations together with similar locations of each signal; 5. the tag set of the user and the contents of each signal’s documents; 6. the tag set of the user and the properties of each signal; 7. the date of the signal and the date when the recommendation is being computed. Explanation based on the highest score in four categories:content (1,2), location (3,4), tag (5, 6), and date (7) The Role of Adaptive Elements in Web-Based Surveillance System User Interfaces – 9. July 2014 Intellinget Web and Information Systems, Department of Computer Science AALBORG UNIVERSITET

  14. New GUI/Tag cloud The Role of Adaptive Elements in Web-Based Surveillance System User Interfaces – 9. July 2014 Intellinget Web and Information Systems, Department of Computer Science AALBORG UNIVERSITET

  15. 2nd Focus Group The same participants All rated the changespossitively More tabs for example with a timeline Tag cloud provides additionalcontext to the list of signal Tag cloudsimplifies the browsingprocess The Role of Adaptive Elements in Web-Based Surveillance System User Interfaces – 9. July 2014 Intellinget Web and Information Systems, Department of Computer Science AALBORG UNIVERSITET

  16. Conclusions Visualization of recommendations and specification of preferences is at least as important as algorithms for recommendations Content organization, possibilities for implicit feedback, explanationsare all meanswhichimprove the percievedrecommendations Focus group with experts is a goodmethod to conductevaluations to receiveboth: confirmations for the design but also suggestions for changes The Role of Adaptive Elements in Web-Based Surveillance System User Interfaces – 9. July 2014 Intellinget Web and Information Systems, Department of Computer Science AALBORG UNIVERSITET

  17. dolog@cs.aau.dk

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