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Table 1:
Log data showing experts’ scores for ease of completing tasks T1 and T2 on a 5-point Likert scale where 5 signifies very easy; score (Q) for user agreement with the system’s cell evaluations on 5-point Likert scale where 5 indicates strong agreement; data set type; data set size (dimensions × data points); duration D (hh:mm) of T2; breadth of exploration, indicated by the number of times the expert limited the search space, depth of exploration, indicated by the maximum reached generation (Evolve); how many new cells were evaluated by the user (Eval); number of times the expert visited the original cells (OVisits) and the new cells (NVisits); and the number of times the expert limited the search space before finding the insight (in parentheses, the generation within that subspace where the insight was found).
ExpertT1T2QDataSizeDLimit-SearchEvolveEvalOVisitsNVisitsInsight
Business 9×900 1:10 16 40 105 2(1) 
Time series 7×78 1:33 114 115 4(3) 
Geometrical 12×67 0:49 21 90 99 344 2(1) 
Statistical 10×200 2:23 13 83 110 309 6(1) 
Geospatial 11×653 1:27 20 64 229 — 
ExpertT1T2QDataSizeDLimit-SearchEvolveEvalOVisitsNVisitsInsight
Business 9×900 1:10 16 40 105 2(1) 
Time series 7×78 1:33 114 115 4(3) 
Geometrical 12×67 0:49 21 90 99 344 2(1) 
Statistical 10×200 2:23 13 83 110 309 6(1) 
Geospatial 11×653 1:27 20 64 229 — 
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