patternfinder 3.0 : sparse temporal data visual query application hyunyoung song, nathaniel ayewah,...
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Patternfinder 3.0 : Sparse Temporal Data Visual Query Application
Hyunyoung Song, Nathaniel Ayewah, Gleneesha Johnson Department of Computer Science, University of Maryland
Spring 2006 CMSC838S Term Project
New Patternfinder Doctor’s query examples
Washington National Hospital ED
Visual Query Interface Visualization Panel
Data Model
Event1
Event2
Value Range
Variable Type
Time spanRelative Change
Time Range EventN
Window span
Time SpanAttribute
Temporal Entity
EventAttribute
Cardinality
Pattern Sequences of event constrained by time span, relative change, etc…
4 Tasks with Incremental Complexity Simple Event Search Relative Change Search Sequence Search Windowed Sequence Search
Event1
Event2
Value Range
Variable Type
Time spanRelative Change
Time Range EventN
Window span
Time SpanAttribute
Temporal Entity
EventAttribute
Cardinality
4 Tasks with Incremental Complexity Simple Event Search Relative Change Search Sequence Search Windowed Sequence Search
Event1
Event2
Value Range
Variable Type
Time spanRelative Change
Time Range EventN
Window span
Time SpanAttribute
Temporal Entity
EventAttribute
Cardinality
4 Tasks with Incremental Complexity Simple Event Search Relative Change Search Sequence Search Windowed Sequence Search
Event1
Event2
Value Range
Variable Type
Time spanRelative Change
Time Range EventN
Window span
Time SpanAttribute
Temporal Entity
EventAttribute
Cardinality
4 Tasks with Incremental Complexity Simple Event Search Relative Change Search Sequence Search Windowed Sequence Search
Event1
Event2
Value Range
Variable Type
Time spanRelative Change
Time Range EventN
Window span
Time SpanAttribute
Temporal Entity
EventAttribute
Cardinality
Simple Event Search
Task Find all patients with HGB measurements above
15 Gm/dl Features
Level structured design Reference levels Matched Events Visualization
Relative Change Search
Task Find all patients with an increase of more than 0.5
K/ul in their white blood cell count Find all patients with a 10% decrease in their
white blood cell count Features
Timespan Constraint Condensed Overview / Detailed view Timespan Labels
Sequence Search
Task Find all patients with 2 WBC measurements
followed by at least 1 RBC measurement within 4 to 12 hours
Features Shape Encoding Dynamic Filter based on Demography
Windowed Sequence Search
Task Find the following measurements: white blood
cells followed by red blood cells followed by haemoglobin, within a window of 1 day
Features Window zoom
Design Principles
Visual Query Formulation Level Structured Design Consistent Symbols
Visualization Timeline Colors and Shapes Overview and Detail
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