Lotus Discovery Server 2.0 Deployment, Planning, and Integration

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.

Keywords

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

your K-map.

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

Begin

K-map creation

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.