Side by Side Comparison

There are two obvious use cases where a user may want to compare two groups of timelines side by side.

For an explanation we will go through the Emergency Room case which can be found at ABBYY Timeline Emergency Room Project.

User creates two sets of timelines. One set has all admitted patients, another set – the admitted patients who have CT Scan ordered in the first two hours. User wants to know how CT affects the duration and the course of treatment.

User wants to know how one type of patients is different from all other types. T is similar to the previous case however there could be 100s of patient types so we don’t expect the user to create 100s sets to compare in pairs.

The hospital changed some rules on July 1st. Now the management needs to know how the change affected the process. So a user wants to compare the timelines for August to May or to the previous August.

This focuses on the first and last cases – comparing two sets or the same set for two intervals.

What to compare and how to compare it

Once user selects the sets or time interval, we could compare

  1. Standard metrics
    • Values
    • Histograms
    • Over time
  2. Custom metrics (currently just the time interval, probably should add sum/average for the attribute values, number of specific protocol violations)
  3. First/last events
  4. Protocol violations
  5. Breakdowns
  6. Permutations
  7. Process schemas

Example Video Demonstration



The side by side comparison will demonstrate the differences between two sets.


This can further be viewed by drilling in on specific metrics and comparing the two over time.


The metrics can be compared over various time intervals.


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