Note: The evidence in locked groups (indicated by the
lock icon next to the group displayed in the Groups Tool) cannot be set.
After using the Document Rater in the Document Viewer to progressively build up groups of documents in a dataset that are relevant to multiple hypotheses you have made, you can use the Evidence Viewer to track your assessments of document consistency and diagnostics.
Note: The evidence in locked groups (indicated by the
lock icon next to the group displayed in the Groups Tool) cannot be set.
For example, you can create a group based on the hypothesis that the documents in the group support improved rice production techniques. You will go through the documents in the group and rate them as supporting or not supporting your hypothesis. The Evidence Viewer will let you see at a glance which documents support, contradict,or provide both supporting and contradicting evidence.
The Evidence Viewer combines with the Document Viewer and enables you to organize and graphically annotate a document's group membership. You can:
Examine any document in a highlighted group
Change the group membership of documents
Check a summary of group evidence
Measure emotional content of a document or group of documents with Affect.
To open the Evidence Viewer, from the Groups window Evidence menu select Show Evidence Viewer. The Evidence Viewer window will display. If you have groups selected, the Summary of any existing group evidence will display.
Once you have assigned evidence values to the documents in your groups, you can get an overview or summary of the evidence of those groups. This evidence is based on the ratings you assigned to each document in the group. The summary provides
Aggregate value
Aggregates of Against (red bars) and For (green bars) evidence
Histograms of document counts by Against, For,
Ambiguous, or Not Rated ratings
If the “Normalize Groups” box is checked, the histograms are scaled by their group sizes. When this mode is off, the scaling is the same for all groups.
Bars have a for/against document count as illustrated
in the following example.
To check the evidence of your groups, perform the following procedure.
From the Groups window, select those groups for which you want to see a summary of evidence.
From the Evidence menu, select Show Evidence Summary.
The Evidence
Viewer window will display.
If the Summary is not automatically displayed,
select it from the drop-down menu.
The summary will display aggregate values, aggregates of for and against
evidence, and histograms of the number of documents with certain ratings
per group as
displayed in each column, colored to indicate the cumulative ratings assigned
to the documents within each group. Under
the aggregate value bars will be a histogram. Use
the legend at the right of the window to interpret the aggregate values.
Clicking a section in a histogram bar will select the documents associated with the rating which was clicked in IN-SPIRE as will clicking on a histogram symbol (like the green arrow).
To sort the documents, select from the Order pull-down menu. In addition to the default group-ordered display you can order by Aggregate Value or Least Refuted.
The Evidence Viewer enables you to measure the emotional content or 'affect' of documents by means of user-created lexicons.
Affect is automatically updated when a new dataset is brought into IN-SPIRE. Affect is indicated by 'rose plots', which display paired terms of opposites, for example positive/negative, love/hate, and virtue/vice.
Using the above key to the lexical pairs, here is an example of the measure Affect of a group of dataset documents.
The number of documents in the group is indicated by the number in the lower right corner of the Affect plot.
Affect Groups from the selected lexicon will display as selected locked groups in the Groups window.
To view the Affect of a document, perform the following procedure.
Start IN-SPIRE and select a dataset. The dataset will open in the Galaxy window.
From the IN-SPIRE main toolbar, select the Groups tool. The Groups Window will display.
From the Groups tool Evidence menu, select Measure
Affect. The
Measure Affect window will display.
From the Measure Affect window, select a lexicon
and click Measure. The
Evidence Viewer window will display the display the Affect axes for the
selected lexicon on the documents in the dataset.
To view the affect on a group, select one or more groups from the Groups window.
From the Evidence Viewer pull-down menu, select
By Group. The
Affect for the select groups will display.
To adjust the level of detail (zoom in or out
on the affect rose plots), use the slider beside the drop-down menu. Move
the slider to the right to increase the size of the plots, and to the
left to decrease the size of the plots.
Use the scroll bars in the plot panel to move around among the plots.
4/28/06