Oracle ConText Option Application Developer's Guide, Rel. 2.3 Go to Product Documentation Library
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Index


A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z 


Symbols

! as punctuation, 3-44
! operator, 3-16, 3-17
escape character, 3-38
# as punctuation, 3-44
# operator, 3-13, 3-14
$ as punctuation, 3-44
$ operator, 3-16
% wildcard, 3-27
theme queries, 4-10
& operator, 3-5
* operator, 3-10, 3-11
- (hyphen) as skipjoin or printjoin, 3-44
- operator, 3-10, 3-11
, (comma)
as a numgroup character, 3-46
as accumulate operator, 3-10
as punctuation, 3-44
. (decimal point) numjoin, 3-45
. (period) as punctuation, 3-44
: operator, 3-13, 3-14
; operator, 3-10
= operator, 3-5, 3-6
> operator, 3-13
? operator, 3-16, 3-17
@ operator, 3-34
_ wildcard, 3-27
theme query, 4-10
{} escape character, 3-38
| operator, 3-5
~ operator, 3-5

Numerics

32-bit environment
viewing in, 6-10
32-bit I/O utility, 6-11

A

accumulate operator, 3-10
example, 3-10
in thesaurus queries, 3-21
stopword transformations, C-5
administration tool
linguistic settings, 7-3
algorithm
scoring, 1-7
algorithm for scoring, 1-7
altering precedence, 3-37
AND operator, 3-5
example, 3-5
stopword transformations, C-4
with theme queries, 4-12
API
linguistics, 7-5
arguments
thesaurus operators, 3-21
ASCII text
paragraph recognition, 7-9

B

backslash escape character, 3-38
base-letter conversion, 3-3
base-letter support
expansion operators, 3-19
thesuarus operator, 3-26
brace escape character, 3-38
braces, 3-38
altering precedence, 3-28
brackets
altering precedence, 3-28, 3-37
broader term generic operator, 3-20
broader term instance operator, 3-21
broader term operator, 3-20
broader term operators
example, 3-24
broader term partitive operator, 3-21
BT operator, 3-20, 3-24
BTG operator, 3-20, 3-24
BTI operator, 3-21, 3-24
BTP operator, 3-21, 3-24

C

CANCEL procedure
CTX_LING, 10-33
CTX_SVC, 8-7, 10-52
CANCEL_ALL procedure, 10-53
CANCEL_USER procedure, 10-54
cancelling linguistic request, 8-7
case-sensitivity
in thesaural queries, 3-25
linguistic requirement, 7-10
of theme queries, 4-11
categories in knowledge catalog, 4-2
CLEAR_ALL_ERRORS procedure, 10-55
CLEAR_ERROR procedure, 8-7, 10-56
CLEAR_INDEX_ERRORS procedure, 10-57
CLEAR_LING_ERRORS procedure, 10-58
clearing linguistic requests with errors, 8-7
CLOSE_CON procedure, 2-14, 10-4
combined queries
first/next and max, 3-15
comma
accumulate operator, 3-10
as a numgroup, 3-46
completion processing, 8-9
composite textkey table
creating theme and gist, 8-4
gist structure, A-7
hitlist structure, A-2
theme structure, A-6
composite textkeys
in-memory queries, 2-15
one-step queries, 2-13
two-step queries, 2-6
using FETCH_HIT, 10-14
using PKDECODE, 10-23
using PKENCODE, 10-24
compound phrases
in synonym queries, 3-22
concepts in knowledge catalog, 4-3
CONTAINS function, 2-10, 2-11, 9-3
restrictions, 2-11
using multiple, 2-11
CONTAINS procedure, 2-3, 10-5
tables created, A-2
using SQEs, 3-31
continuation character, 3-43
querying, 3-44
control
32-bit viewer, 6-10
COUNT_HITS function, 2-17, 10-8
COUNT_LAST function, 2-17, 10-10
counting hits, 1-5, 2-17
CREATE TABLE command, 6-5
CREATE VIEW statement, 2-6
CTX_LING
CANCEL, 10-33
GET_COMPLETION_CALLBACK, 10-34
GET_ERROR_CALLBACK, 10-35
GET_LOG_PARSE, 8-11, 10-36
GET_SETTINGS_LABEL, 10-37
package, 7-5, 10-32
REQUEST_GIST, 8-4, 10-38
REQUEST_THEMES, 8-4, 10-41
SET_COMPLETION_CALLBACK, 8-9, 10-43
SET_ERROR_CALLBACK, 8-9, 10-44
SET_LOG_PARSE, 8-11, 10-45
SET_SETTINGS_LABEL, 8-2, 10-46
SUBMIT, 8-4, 10-49
CTX_QUERY
CLOSE_CON, 2-14, 10-4
CONTAINS, 2-3, 3-31, 10-5
COUNT_HITS, 10-8
COUNT_LAST, 10-10
FEEDBACK, 5-2, 5-15, 10-12
FETCH_HIT, 2-14, 10-14
GETTAB, 6-5, 6-6, 10-16, A-2
HIGHLIGHT, 6-2, 10-18
OPEN_CON, 2-14, 10-21
package, 10-3
PKDECODE, 10-23
PKENCODE, 10-24
PURGE_SQE, 3-29, 10-26
REFRESH_SQE, 3-29, 3-31, 10-27
RELTAB, 6-6, 10-28
REMOVE_SQE, 3-29, 10-29
STORE_SQE, 3-29, 10-30
CTX_SQES view, 3-32
CTX_SVC
CANCEL, 8-7, 10-52
CANCEL_ALL, 10-53
CANCEL_USER, 10-54
CLEAR_ALL_ERRORS, 10-55
CLEAR_ERROR, 8-7, 10-56
CLEAR_INDEX_ERRORS, 10-57
CLEAR_LING_ERRORS, 10-58
package, 7-5, 10-51
REQUEST_STATUS, 10-59
CTX_USER_SQES view, 3-32
CTXIO32, 6-11
CTXLING sample application, B-7
CTXPLUS sample application, B-3
CTXSYS user, 7-3
CTXV32.HLP, 6-10
CTXV32.OCX, 6-10

D

database links
creating, 2-8, 2-16
in CONTAINS PL/SQL procedure, 10-5
in COUNT_HITS PL/SQL function, 10-8
in OPEN_CON PL/SQL function, 10-21
using in in-memory queries, 2-16
using in one-step queries, 2-13, 9-6
using in two-step queries, 2-8
DBMS_OUTPUT.ENABLE, 2-15
decimal point
as a numjoin, 3-45
DEFAULT thesaurus, 3-22
demo application
CTXLING, B-7
CTXPLUS, B-3
settting up, B-2
DML
affect on scoring, 1-9
document presentation, 1-11
document size
requirements for linguistics, 7-10
document viewing, 6-2
in Windows, 6-10
DROP TABLE command, 6-6

E

endjoin character, 3-43
querying, 3-46
equivalence operator, 3-5, 3-6
stopword transformations, C-7
error processing for linguistics, 8-9
errors
clearing, 8-7
escaping special characters, 3-38
EXECUTE command, 3-34
expansion operator
fuzzy, 3-16, 3-17
penetration, 3-18
soundex, 3-16, 3-17
stem, 3-16
expansion operators, 3-16
expression feedback
viewing, 5-16
extending stored query expressions, 3-31

F

feedback
query expansion, 5-6
query expression, 5-2
query optimization, 5-9
stopword rewite, 5-10
theme query normalization, 5-8
FEEDBACK procedure, 5-2, 5-15, 10-12
feedback table
creating, 5-15
understanding, 5-11
FETCH_HIT function, 2-14, 10-14
first/next operator, 3-13, 3-14
stopword transformations, C-8
with max, 3-15
formats
supported for Windows 32-bit viewing, 6-10
formatted text
filtering for linguistics, 7-9
fuzzy expansions
viewing with expression feedback, 5-6
fuzzy operator, 3-16
example, 3-17

G

generalizing theme queries, 4-13
GET_COMPLETION_CALLBACK function, 10-34
GET_ERROR_CALLBACK function, 10-35
GET_LOG_PARSE function, 8-11, 10-36
GET_SETTINGS_LABEL function, 10-37
GETTAB procedure, 6-5, 10-16, A-2
Gist
about, 7-13
generating, 8-4, 10-38
gist table
composite textkey, 8-4
composite textkey stucture, A-7
creating, 8-3
structure, A-7
granting execute privileges, 10-2
GROUP BY clause, 2-12
grouping characters, 3-28
with theme queries, 4-10

H

hierarchical query
query expression feedback, 5-16
HIGHLIGHT procedure, 10-18
code sample, 6-7
result table, A-3
using, 6-4
highlighted text
viewing, 6-2
HIGHTAB (highlight) table
structure, A-3
hitlist
result tables, 2-4
sharing, 2-5
hitlist table
composite textkey, A-2
structure, A-2
hits counting, 2-17
homographs
in broader term queries, 3-24
in narrower term queries, 3-24
HTML
embedding viewer control in, 6-10
hyphenated words
querying, 3-44

I

I/O utility, 6-11
ICFTAB table
structure, A-4
indexing
special characters, 3-43
theme, 4-5
in-memory query, 1-4
example, 2-14, B-6
limitations, 2-16
using, 2-14
with composite textkeys, 2-15
inverse frequency scoring, 1-7
iterative queries, 3-29, 3-31

K

knowledge catalog, 4-2, 7-7
normal forms, 4-4

L

lexicon, 7-7
linguistic output, 7-11
combining with theme/text queries, 8-12
generating, 8-3, 8-12
table structure, A-6
tables, 8-3
linguistic personality, 7-3
linguistic request
about, 1-11, 7-2, 7-3
clearing, 8-7
monitoring status, 8-6
removing, 8-7
submitting, 8-5
linguistic settings
about, 7-15
specifying, 8-2
linguistics
about, 1-11, 7-2
Application Program Interface, 7-5
case sensitivity, 7-10
requirements, 7-2
text input, 7-9
list of themes, 7-11
generating, 8-4, 10-41
logging linguistic parse information, 8-11
logical operators, 3-5

M

mark-up
highlighting, 6-3
max operator, 3-13, 3-14
stopword transformations, C-7
with first/next, 3-15
MINUS operator, 3-10
example, 3-11
stopword transformations, C-5
monitoring services queue, 8-6
multiple CONTAINS, 2-11
multiple policies
with one-step queries, 4-15
MUTAB (mark-up) table, A-3

N

narrower term generic operator, 3-20
narrower term instance operator, 3-20
narrower term operator, 3-20
narrower term operators
example, 3-23
narrower term partitive operator, 3-20
NEAR operator
stopword transformations, C-7
near operator, 3-10
nesting
stored query expressions, 3-32
NOFILTAB (no filter) table
structure, A-5
normal forms in knowledge catalog, 4-4
NOT operator, 3-5
example, 3-6
stopword transformations, C-6
with theme queries, 4-13
NT operator, 3-20, 3-23
NTG operator, 3-20, 3-23
NTI operator, 3-20, 3-23
NTP operator, 3-20, 3-23
numbers
querying, 3-45
numgroup character, 3-43
querying, 3-45
numjoin character, 3-43
querying, 3-45

O

OCX
32-bit viewer, 6-10
one-step query, 1-4, 2-10
example, 2-11, B-5
multiple policies, 4-15
processing, 2-10
theme query, 4-15
OPEN_CON function, 2-14, 10-21
OPERATION column of feedback table, 5-12
operator
accumulate, 3-10
AND, 3-5
broader term, 3-24
equivalence, 3-5, 3-6
first/next, 3-13, 3-14
fuzzy, 3-17
max, 3-13, 3-14
MINUS, 3-10, 3-11
narrower term, 3-23
near, 3-10, 3-11
NOT, 3-5, 3-6
OR, 3-5
penetration, 3-18
preferred term, 3-23
related term, 3-23
soundex, 3-17
SQE, 3-29
stem, 3-16
synonym, 3-20, 3-21, 3-22
threshold, 3-13
top term, 3-25
weight, 3-10, 3-11
WITHIN, 3-8
operator precedence, 3-35
examples, 3-36
viewing with parse trees, 5-5
operators
expansion, 3-16
logical, 3-5
result-set, 3-13
score-changing, 3-10
stem, 3-16
theme query examples, 4-9
thesaurus, 3-20
operators in SQEs, 3-33
optimization of queries
expression feedback, 5-9
OPTIONS column of feedback table, 5-13
OR operator, 3-5
example, 3-5
stopword transformations, C-4
Oracle Worldwide Technical Support
how to contact, xvii
how to contact in Europe, xvii
how to contact in U.S.A., xvii
output
generating linguistic, 8-12
linguistic, 7-11

P

package
CTX_LING, 7-5, 10-32
CTX_QUERY, 10-3
CTX_SVC, 7-5, 10-51
paragraph separation, 7-9
paragraph-level Gist, 7-13
paragraph-level Gist and theme summary
generating, 10-38
paragraph-level theme summary, 7-12
parallel processing
two-step queries, 2-9
parentheses
altering precedence, 3-28, 3-37
parse logging, 8-11
parse trees
query expansion, 5-6
query optimization, 5-9
stopword transformation, 5-10
theme query normalization, 5-8
understanding, 5-4
parsing engine, 7-8
PENDING requests
removing, 8-7
penetration of operators, 3-18
personality
linguistic, 7-3
PKDECODE function, 10-23
PKENCODE function, 10-24
PL/SQL
document viewing procedures, 6-2
in text queries, 3-34
PL/SQL packages
granting privileges, 10-2
PLAINTAB (plain text) table
structure, A-5
policies
multiple, 4-15
policy
as a linguistic requirement, 7-2
precedence of operators, 3-35
altering, 3-28, 3-37
equivalence operator, 3-7
example, 3-36
preferred term operator, 3-20
example, 3-23
presentation
document, 1-11
printjoin character, 3-43
querying with, 3-44
privileges
granting, 10-2
procedures
in queries, 3-34
proximity operator, see near operator
PT operator, 3-20, 3-23
punctuation character, 3-43
querying, 3-44
punctuation requirements, 7-9
PURGE_SQE procedure, 3-29, 10-26

Q

qualifiers
using in thesaural queries, 3-24
query
accumulate, 3-10
AND, 3-5
base-letter, 3-3
broader term, 3-24
combined first/next and max, 3-15
composite textkey, 2-6
counting hits, 1-5, 2-17
equivalence, 3-6
executing PL/SQL function in, 3-34
first/next, 3-14
in-memory, 1-4, 2-14
in-memory example, B-6
iterative, 3-29, 3-31
max, 3-14
MINUS, 3-11
narrower term, 3-23
NOT, 3-6
one-step, 1-4
one-step example, B-5
OR, 3-5
preferred term, 3-23
related term, 3-23
remote, 2-8, 2-13, 2-16, 9-6, 10-5, 10-8, 10-21
structured, 2-7
synonym, 3-22
theme, 1-3
threshold, 3-13
top term, 3-25
two-step, 1-4
two-step example, B-5
weight, 3-11
query expansions
viewing with expression feedback, 5-6
query expression
about, 1-6, 3-2
components, 3-3
examples, 3-4
query expression feedback
about, 5-2
obtaining, 5-15
query optimization
viewing with expression feedback, 5-9
query terms, 3-2
query_id parameter in CONTAINS, 2-5, 10-6
querying
continuation, 3-44
numbers, 3-45
punctuation, 3-44
theme, 4-7
querying with stopwords, 3-41
queue
services, see services queue

R

recognition
paragraph, 7-9
word and sentence, 7-9
re-evaluation of SQEs, 3-30
refining theme queries, 4-12
REFRESH_SQE procedure, 3-29, 3-31, 10-27
related term operator, 3-20
example, 3-23
relevance ranking
text queries, 1-7
RELTAB procedure, 10-28
remote databases
counting query hits in, 1-5, 2-17, 10-8
in-memory queries in, 2-16, 10-21
one-step queries in, 2-13, 9-6
two-step queries in, 2-8, 10-5
remote queries
in-memory, 2-16, 10-21
one-step, 2-13, 9-6
query hits counting, 10-8
two-step, 2-8, 10-5
REMOVE_SQE procedure, 3-29, 10-29
removing pending requests, 8-7
request
clearing errors, 8-7
monitoring linguistic, 8-6
removing linguistic, 8-7
REQUEST_GIST procedure, 8-4, 10-38
REQUEST_STATUS function, 10-59
REQUEST_THEMES procedure, 8-4, 10-41
reserved words and characters, 3-38
escaping, 3-38
restricting theme query, 4-12
result table
allocating, 6-5
composite textkey, A-2
definition, 1-10
hitlist, 2-4, A-2
shared, 2-5
result-set operators, 3-13
rewrite
stopword, 3-41, C-2
RT operator, 3-20, 3-23

S

sample application
CTXLING, B-7
CTXPLUS, B-3
setting up, B-2
SCORE function, 2-10, 2-12, 9-5
score-changing operators, 3-10
scoring, 1-7
DML, 1-9
theme queries, 4-8
two-step queries, 2-4
scoring algorithm
text queries, 1-7
section searching, 3-8
SELECT statement
in one-step queries, 2-11
in two-step queries, 2-3
sentence-level Gist, 7-13
sentence-level Gist and theme summary
generating, 10-38
sentence-level theme summary, 7-12
separation
paragraph, 7-9
server personality, 7-3
service request
cancelling, 10-52, 10-53, 10-54
removing errors, 10-55, 10-57, 10-58
services queue
about, 7-3
monitoring, 8-6
session and system SQEs, 3-30
session configuration
setting, 8-2
SET_COMPLETION_CALLBACK procedure, 8-9, 10-43
SET_ERROR_CALLBACK procedure, 8-9, 10-44
SET_LOG_PARSE procedure, 8-11, 10-45
SET_SETTINGS_LABEL procedure, 8-2, 10-46
settings
linguistic, 7-15, 8-2
sharelevel parameter in CONTAINS, 2-5, 10-5
sharing result table, 2-5
skipjoin character, 3-43
querying with, 3-44
soundex expansions
view with expression feedback, 5-6
soundex operator, 3-16
example, 3-17
special characters
indexing, 3-43
querying, 3-43
SQE operator, 3-29
SQE tables, 3-32
SQEs, see stored query expressions
SQL functions
CONTAINS, 9-3
SCORE, 9-5
startjoin character, 3-43
querying, 3-46
stem operator, 3-16
example, 3-16
stoplist, 3-2
stopword transformation, C-2
viewing with expression feedback, 5-10
stopwords, 3-2
querying, 3-41
STORE_SQE procedure, 3-29, 10-30
stored query expressions
behavior with FEEDBACK, 10-13
extending, 3-31
iterative queries, 3-31
nesting, 3-32
re-evaluation, 3-30
session and system, 3-30
support of operators, 3-33
using, 3-29
stripping punctuation characters, 3-44
structured query, 2-7
SUBMIT function, 8-4, 10-49
submitting linguistic requests, 8-5
supported document formats
for Windows 32-bit viewing, 6-10
SYN operator, 3-20, 3-22
synonym operator, 3-20
example, 3-22

T

table structure
gist, A-7
HIGHLIGHT, A-3
hitlist, A-2
ICFTAB, A-4
MUTAB, A-3
NOFILTAB, A-5
PLAINTAB, A-5
theme, A-6
tables
result, 1-10
SQE, 3-32
SQR, 3-32, 10-27
tagged text
querying, 3-46
searching, 3-8
text
ASCII paragraph recognition, 7-9
text input
linguistic requirements, 7-9
text query
about, 1-2
combining with linguistic output, 8-12
scoring, 1-7
selecting method, 2-2
theme indexing, 4-5
theme query, 1-3
about, 4-7
combining with linguistic output, 8-12
constructing, 4-9
generalizing, 4-13
one-step, 4-15
operators not supported, 4-10
phrasing hints, 4-10
refining, 4-12
restricting, 4-12
scoring, 1-7, 4-8
two-step, 4-15
using operators, 4-9
theme query normalization
viewing with expression feedback, 5-8
theme summaries
about, 7-12
generating, 10-38
theme table
composite textkey, 8-4, A-6
creating, 8-3
structure, A-6
theme weight, 4-6
in theme indexes, 4-6
list of themes, 7-11
themes
generating, 10-41
generating list of, 8-4
list of, 7-11
thesaurus
calling in queries, 3-22
DEFAULT, 3-22
hierarchy levels, 3-22
thesaurus expansions
viewing with expression feedback, 5-6
thesaurus operators
arguments, 3-21
limitations, 3-21
operator
thesaurus, 3-20
with theme queries, 4-9
threshold operator, 3-13
stopword transformations, C-7
top term operator, 3-20
example, 3-25
transformation
stopword, 3-41, 5-10, C-2
tree-structure of knowledge catalog, 4-2
TT operator, 3-20, 3-25
two-step query, 1-4, 2-3
alternative, 2-6
example, 2-3, B-5
parallel processing, 2-9
result table, 2-4
scoring, 2-4
tables used in, A-2
theme query, 4-15

V

view
using in two-step query, 2-6
viewing
CTX_QUERY.HIGHLIGHT, 6-2
in 32-bit Windows, 6-10
PL/SQL example, 6-7
tables used, A-3
views
CTX_SQES, 3-32
CTX_USER_SQES, 3-32
Visual Basic
using the viewer control with, 6-10

W

weight
in list of themes, 7-11
theme, 4-6
weight operator, 3-10, 3-11
stopword transformations, C-7
wildcard characters, 3-27
with theme queries, 4-10
wildcard expansions
viewing with expression feedback, 5-6
Windows 32-bit viewing, 6-10
table used, A-4
WITHIN operator, 3-8
precedence, 3-36
stopword transformations, C-8
writing style requirement, 7-10


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