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color change
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The conceptual taxonomy makes it possible to find specific
concepts that are subsumed by a general request. For example,
in a taxonomy of bug-descriptions, the query color change
subsumes the concepts:
- becomes black
- reset bitmap colors
- color disruption
This technology integrates general linguistic information with taxonomic
subsumption. For example,
Using this kind of knowledge to connect
query phrases with phrases occurring in text makes
it much easier to find what your looking for.
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SunExpress Catalog
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Querying a conceptual taxonomy to find relevant phrases
and then looking at passages where those
phrases occur can be an effective way to find what you need.
For example, with a conceptual index of the SunExpress Catalog,
a catalog of products for Unix(TM) computers, the query
"add memory" returned the following structure of subsumed
concepts:
Query: (ADD MEMORY)
(ADD MEMORY)
|-k- (ADDITIONAL MEMORY)
| |-k- (ADDITIONAL A MEMORY)
| |-k- (ADDITIONAL G MEMORY)
| |-k- (ADDITIONAL K MEMORY)
| |-k- (ADDITIONAL STORAGE)
| | |-k- (ADDITIONAL DISK)
| | |-k- (ADDITIONAL DISKS)
| | | |-k- (TWO ADDITIONAL HARD DISKS)
| | |
| | |-k- (ADDITIONAL MULTI-DISK)
| | |-k- (ADDITIONAL 4.2-GB MULTI-DISK)
| | |
| | |-k- (ADDITIONAL SMCC MULTI-DISK)
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| |-k- (PURCHASE ADDITIONAL MEMORY)
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|-k- (ECONOMICALLY ADDING LOCAL STORAGE)
|-k- (SOLDERED-IN MEMORY)
Each of these concepts (with the possible
exception of the query phrase itself) is a phrase
that occurs somewhere in the SunExpress catalog and was
automatically extracted and indexed. The display shows
the organization of these concepts according to their
subsumption relationships, with more specific concepts
occurring lower and to the right. In particular the query subsumes
the concept:
(ECONOMICALLY ADDING LOCAL STORAGE)
based on the fact that a disk is a kind of storage.
Looking up this phrase in the text results in a display of the following
passage (with the relevant phrase highlighted with italics):
Sun's new 535 MB 3.5-Inch SCSI-2 Disk Drive offers much higher performance
and more capacity at a lower cost/MB than the 424 MB drive it replaces. It
is ideal for economically adding local storage to desktop
SPARCsystems.
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Knowledge Technology Group, Sun Microsystems Laboratories
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