170 Lotus Discovery Server 2.0
The stopword list is unique to every language and can be edited with a standard
text processing utility like MS Notepad.
Contrasting the stopword list are keywords. If you use a Field Map to map any
field in any repository to the Keyword field, then the data in that field is given
three times the weight of other words. For example, a keyword field on a
particular Notes form may have been offered to help document creators choose a
category for the information they were entering in one of your organization’s
Notes applications. If this is the case, you can enter the field name in the
Keywords field on the field map and the ATG will consider it 3 times as important
as the words in the Title or Body field.
6.3.4 Generating your K-map and working with the K-map Editor
Generating your K-map is the moment you have been working toward. Keep in
mind that your initial K-map can be recreated easily at this point because you
have not edited it yet and turned on categorization.
For example, you may have to recreate your initial K-map if, in spite of your best
efforts to choose quality content for spidering, a bunch of unusable characters
appear. An organization may use codes or numbers to organize content in one of
the repositories spidered. The ATG will dutifully categorize them but the codes
may not make sense to everyone who will be using the K-map. To resolve a
situation such as this, simply add the codes to the Stopword List and recreate
If your organization is only implementing the search functionality of Discovery
Server, then your work is done at this point. All you have to do is choose
from the Startup page in the Discovery Control Center. Monitor
the creation of your K-map, and when it is complete simply leave all categories
generated by the ATG hidden. End users can now take advantage of your work
by using a simple search UI such as the Atomica client (detailed in Section 8.5,
“Complementary products” on page 244) or a custom UI that your organization
has created with the Discovery Server API (detailed in Section 8.1, “User
interface integration” on page 208).
Important: In past versions of Discovery Server, administrators were warned
not to enter the same word in the stopword list twice. This might happen with
words that have different meanings but are spelled the same way and you
don‘t remember having the word already added to the list. However, with
Discovery Server 2.0 this is no longer a concern, as the ATG process simply
ignores duplicate entries.
Chapter 6. Developing and maintaining an enterprise taxonomy 171
K-map Editor features
Lotus Discovery Server Release 2 gives you better tools to edit and work with
your taxonomy in the form of an improved K-map Editor and the eClassifier tool
from IBM Research that ships with DS 2.0, which we discuss later. Figure 6-6
displays the K-map Editor followed by a list of the new and improved features in
the K-map Editor.
Figure 6-6 K-map Editor
Important: If you choose only to use the search functionality of Discovery
Server, we highly recommend that you periodically check your K-map and
follow the editing techniques discussed in the following section in preparation
for the time in the future when your organization decides to leverage more
Discovery Server features such as affinities, expertise profiling, or allowing
users to navigate your taxonomy with the K-map UI.