Oracle8 ConText Cartridge -- Index

, (comma)

as a numgroup character, 3-54

as accumulate operator, 3-14

as punctuation, 3-52

. (decimal point) numjoin, 3-53

. (period) as punctuation, 3-52

: operator, 3-21, 3-22

= operator, 3-8, 3-9

> operator, 3-21

? operator, 3-24, 3-25

@ operator, 3-42

_ wildcard, 3-35

{} escape character, 3-46

| operator, 3-8

~ operator, 3-8

accumulate operator, 3-14

example, 3-14

in thesaurus queries, 3-29

stopword transformations, D-14

accumulation of themes, 7-12

algorithm for scoring, B-2

altering precedence, 3-45

ambiguous concept in knowledge catalog, 7-10

ambiguous themes, 4-3

AND operator, 3-8

example, 3-8

stopword transformations, D-13

theme queries, 4-9

application

building, 1-2

backslash escape character, 3-46

backward compatibility

near operator syntax, 3-19

base-letter conversion, 3-6

base-letter query

thesuarus operator, 3-6

base-letter support

expansion operators, 3-27

thesuarus operator, 3-34

brace escape character, 3-46

brackets

altering precedence, 3-36, 3-45

grouping character, 3-36

broader term generic operator, 3-28

broader term instance operator, 3-29

broader term operator, 3-28

broader term operators

example, 3-32

broader term partitive operator, 3-29

BT operator, 3-28, 3-32

BTG operator, 3-28, 3-32

BTI operator, 3-29, 3-32

BTP operator, 3-29, 3-32

CANCEL procedure

CTX_LING, 10-33

CTX_SVC, 10-53

CANCEL_ALL procedure, 10-54

CANCEL_USER procedure, 10-55

case-conversion linguistic settings, 7-13

case-sensitivity

stopwords, 3-4, 3-49

text queries, 1-7, 3-3

theme query, 1-8, 4-5

thesaural queries, 3-33

categories in knowledge catalog, E-1

definition, 7-8

CLEAR_ALL_ERRORS procedure, 10-56

CLEAR_ERROR procedure, 8-19, 10-57

CLEAR_INDEX_ERRORS procedure, 10-58

CLEAR_LING_ERRORS procedure, 10-59

clearing linguistic requests with errors, 8-19

CLOSE_CON procedure, 2-16, 10-4

clump size in near operator, 3-17

combined queries

first/next and max, 3-23

comma

accumulate operator, 3-14

as a numgroup, 3-54

composite textkey table

creating theme and Gist, 8-9

gist structure, A-7

hitlist structure, A-2

theme structure, A-6

composite textkeys

in-memory queries, 2-18

one-step queries, 2-14

two-step queries, 2-7

using FETCH_HIT, 10-14

using PKDECODE, 10-24

using PKENCODE, 10-25

composite word queries, 3-5

highlighting, 3-5

compound phrases

in synonym queries, 3-30

concept

ambiguous, 7-10

unknown, 7-10

concepts in knowledge catalog

definition, 7-9

CONTAINS function, 2-11, 2-12, 9-3

restrictions, 2-12

using multiple, 2-12

CONTAINS procedure, 2-3, 10-5

tables created, A-2

using SQEs, 3-39

ConText linguistics

about, 7-2

continuation character, 3-51

querying, 3-52

count

presenting, 1-15

COUNT_HITS function, 2-19, 10-8

COUNT_LAST function, 2-19, 10-10

counting hits, 1-13, 2-19

CREATE TABLE command, 6-6

CREATE VIEW statement, 2-7

CTX_LING

CTX_LING output

about, 8-2

combining with queries, 8-14

generating, 8-8, 8-14

presenting, 1-18

CTX_LING output tables

CTX_QUERY

CTX_SVC

CLEAR_ALL_ERRORS, 10-56

CLEAR_ERROR, 8-19, 10-57

CLEAR_INDEX_ERRORS, 10-58

CLEAR_LING_ERRORS, 10-59

package, 10-52

REQUEST_STATUS, 10-60

CTX_USER_SQES view, 3-40

CTXLING sample application, C-7

CTXPLUS sample application, C-3

CTXSYS user, 8-4

database links

creating, 2-9, 2-18

in CONTAINS PL/SQL procedure, 10-5

in COUNT_HITS PL/SQL function, 10-8

in OPEN_CON PL/SQL function, 10-22

using in in-memory queries, 2-18

using in one-step queries, 2-14, 9-6

using in two-step queries, 2-9

DBMS_OUTPUT.ENABLE, 2-17

decimal point

as a numjoin, 3-53

DEFAULT thesaurus, 3-30

demo application

CTXLING, C-7

CTXPLUS, C-3

settting up, C-2

DML

affect on scoring, B-3

document hit count

presenting, 1-15

document presentation, 6-2

highlighting composites, 3-5

structure of tables, A-3

using CTX_LING output, 8-14

document viewing, 6-2

DROP TABLE command, 6-10

Dutch composite queries, 3-5

endjoin character, 3-51

querying, 3-55

equivalence operator, 3-8, 3-9

stopword transformations, D-16

with near, 3-18

error clearing from services queue, 8-19

error processing for linguistics, 8-20

escaping special characters, 3-46

EXECUTE command, 3-42

expansion operator

expansions

expression feedback

extending stored query expressions, 3-39

feedback

query expansion, 5-5

query expression, 5-2

query optimization, 5-7

stopword rewite, 5-7

theme query normalization, 5-6

FEEDBACK procedure, 5-2, 5-13, 10-12

feedback table

creating, 5-13

understanding, 5-9

FETCH_HIT function, 2-16, 10-14

first/next operator, 3-21, 3-22

stopword transformations, D-17

with max, 3-23

formats

supported for Windows 32-bit viewing, 1-17

fuzzy expansions

viewing with expression feedback, 5-5

fuzzy operator, 3-24

example, 3-25

generalizing theme queries, 4-10

German composite queries, 3-5

GET_COMPLETION_CALLBACK function, 10-34

GET_ERROR_CALLBACK function, 10-35

GET_FULL_THEMES, 10-36

GET_LOG_PARSE function, 8-22, 10-37

GET_SETTINGS_LABEL function, 10-38

GETTAB procedure, 6-6, 10-16, A-2

Gist, 8-2, 8-7

generating, 8-10, 10-39

presenting, 1-18

Gist table

composite textkey, 8-9

composite textkey stucture, A-7

creating, 8-8

structure, A-7

granting execute privileges, 10-2

grouping characters, 3-36

theme queries, 4-7

hierarchical list of themes, 8-5

generating, 8-11

hierarchical query

query expression feedback, 5-14

highlight output

text and theme queries, 6-8

HIGHLIGHT procedure, 6-7, 10-18

output, 6-4

result table, A-3

using, 6-3

highlight result tables

creating, 6-6

releasing, 6-10

structure, A-3

highlighted documents

presenting, 1-16

highlighting

composite word queries, 3-5

HIGHTAB table, 6-3, 6-8

hints

hitlist

hitlist table

composite textkey, A-2

structure, A-2

hits counting, 2-19

homographs

in broader term queries, 3-32

in narrower term queries, 3-32

hyphenated words

querying, 3-52

ICF highlight output, 6-3

ICFTAB table

structure, A-4

index

creating, 1-4

options for text index, 1-4

indexing

special characters, 3-51

theme, 4-2

in-memory query, 1-12

example, 2-17, C-6

limitations, 2-18

using, 2-16

with composite textkeys, 2-18

input to theme extraction system, 7-5

inverse frequency scoring, B-2

iterative queries, 3-37, 3-39

knowledge catalog

about, 7-8

category hiearchy, E-1

knowlege base

linguistic completion processing, 8-20

linguistic output, 8-3

table structure, A-6

linguistic personality, 8-4

linguistic request

about, 1-18, 8-4

clearing, 8-19

monitoring status, 8-17

linguistic settings

linguistics

list of themes, 8-2, 8-5

generating, 8-10, 10-42

generating parent themes, 8-11

logging linguistic parse information, 8-22

logical operators, 3-8

with near, 3-18

mark-up

highlighting, 6-5

max operator, 3-21, 3-22

stopword transformations, D-17

with first/next, 3-23

max_span parameter in near operator, 3-17

MINUS operator, 3-14

example, 3-15

stopword transformations, D-15

monitoring services queue, 8-17

multiple CONTAINS, 2-12

multiple policies

one-step queries, 4-13

with one-step queries, 2-14

MUTAB table, 6-3, 6-8, A-3

narrower term generic operator, 3-28

narrower term instance operator, 3-28

narrower term operator, 3-28

narrower term operators

example, 3-31

narrower term partitive operator, 3-28

near operator, 3-17

backward compatibility, 3-19

highlighting, 3-19

scoring, 3-18

section searching, 3-20

stopword transformations, D-16

with other operators, 3-18

nesting stored query expressions, 3-40

NOFILTAB table, 6-3

structure, A-5

normal forms in knowledge catalog, 7-10

normalization of tokens, 7-11

NOT operator, 3-8

example, 3-9

stopword transformations, D-15

theme queries, 4-10

NT operator, 3-28, 3-31

NTG operator, 3-28, 3-31

NTI operator, 3-28, 3-31

NTP operator, 3-28, 3-31

numbers

querying, 3-53

numgroup character, 3-51

querying, 3-53

numjoin character, 3-51

querying, 3-53

one-step query, 1-13, 2-11

example, 2-12, C-5

multiple policies, 2-14, 4-13

processing, 2-11

SELECT statement, 9-6

theme query, 4-12

OPEN_CON function, 2-16, 10-22

OPERATION column of feedback table, 5-10

operator

operator precedence, 3-43

examples, 3-44

viewing with parse trees, 5-4

operators

stem, 3-24

theme query examples, 4-6

thesaurus, 3-28

using, 1-7

with theme queries, 4-6

operators in SQEs, 3-41

optimization of queries

expression feedback, 5-7

OPTIONS column of feedback table, 5-11

OR operator, 3-8

example, 3-9

stopword transformations, D-14

Oracle Worldwide Technical Support

how to contact, xix

how to contact in Europe, xix

how to contact in U.S.A., xix

order parameter in near operator, 3-17

output

package

PARAGRAPH keyword, 3-11

paragraph-level Gist, 8-7

generating, 10-39

paragraph-level theme summary, 8-6

generating, 10-39

parallel processing

two-step queries, 2-9

parent themes

generating, 8-11

in list of themes, 8-5

parentheses

altering precedence, 3-36, 3-45

grouping character, 3-36

parse logging, 8-22

parse trees

query expansion, 5-5

query optimization, 5-7

stopword transformation, 5-7

theme query normalization, 5-6

understanding, 5-4

parsing engine, 7-11

PENDING requests

removing, 8-18

penetration of operators, 3-26

personality

linguistic, 8-4

PKDECODE function, 10-24

PKENCODE function, 10-25

PLAINTAB table, 6-3

structure, A-5

PL/SQL

in text queries, 3-42

PL/SQL packages

granting privileges, 10-2

pol_hint parameter in SELECT statement, 2-14, 4-13, 9-7

policies

multiple, 2-14, 4-13

precedence of operators, 3-43

altering, 3-36, 3-45

equivalence operator, 3-10

example, 3-44

preferred term operator, 3-28

example, 3-31

presenting document

about, 1-16

printjoin character, 3-51

privileges

procedures

proximity operator, see near operator

PT operator, 3-28, 3-31

punctuation character, 3-51

querying, 3-52

PURGE_SQE procedure, 3-37, 10-26

qualifiers

using in thesaural queries, 3-33

queries

combining with CTX_LING output, 8-14

query

query expansions

viewing with expression feedback, 5-5

query expression

about, 3-2

components, 3-3

examples, 3-6

query expression feedback

about, 5-2

obtaining, 5-13

query optimization

viewing with expression feedback, 5-7

query terms, 3-2

query_id parameter in CONTAINS, 2-5, 10-6

querying

continuation characters, 3-52

numbers, 3-53

punctuation chacracters, 3-52

theme, 4-4

querying with stopwords, 3-49

queue

services, see services queue

re-evaluation of SQEs, 3-38

refining theme queries, 4-9

REFRESH_SQE procedure, 3-37, 3-39, 10-27

related term operator, 3-28

example, 3-31

relevance ranking

text queries, B-2

RELTAB procedure, 10-28

remote databases

counting query hits in, 10-8

in-memory queries in, 2-18, 10-22

one-step queries in, 2-14, 9-6

two-step queries in, 2-9, 10-5

remote queries

in-memory, 2-18, 10-22

one-step, 2-14, 9-6

query hits counting, 10-8

two-step, 2-9, 10-5

REMOVE_SQE procedure, 3-37, 10-29

request

clearing errors, 8-19

monitoring linguistic, 8-17

removing linguistic, 8-18

REQUEST_GIST procedure, 8-10, 10-39

REQUEST_STATUS function, 10-60

REQUEST_THEMES procedure, 8-10, 10-42

reserved words and characters, 3-46

escaping, 3-46

restricting theme query, 4-9

result table

allocating, 6-6

composite textkey, A-2

highlight, A-3

hitlist, 2-4, A-2

shared, 2-5

result-set operators, 3-21

rewrite

stopword, 3-50, D-12

RT operator, 3-28, 3-31

sample application

score

SCORE function, 2-11, 2-13, 9-5

score-changing operators, 3-14

scoring

DML, B-3

theme queries, 4-5

two-step queries, 2-4

scoring algorithm

text queries, B-2

scoring for near operator, 3-18

section searching, 3-12

about, 1-8

with NEAR operator, 3-20

SELECT statement, 2-12, 2-13, 9-6

in one-step queries, 2-12

in two-step queries, 2-3

SENTENCE keyword, 3-11

sentence-level Gist, 8-7

sentence-level Gist and theme summary

generating, 10-39

sentence-level theme summary, 8-6

server personality, 8-4

service request

cancelling, 10-53, 10-54, 10-55

removing errors, 10-56, 10-58, 10-59

services queue

about, 8-4

monitoring, 8-17

session and system SQEs, 3-38

session configuration

setting, 8-16

SET_COMPLETION_CALLBACK procedure, 8-20, 10-44

SET_ERROR_CALLBACK procedure, 8-20, 10-45

SET_FULL_THEMES procedure, 8-11, 10-46

SET_LOG_PARSE procedure, 8-22, 10-47

SET_SETTINGS_LABEL procedure, 8-16, 10-48

settings

linguistic, 7-13, 8-16

sharelevel parameter in CONTAINS, 2-5, 10-5

sharing result table, 2-5

single themes

in list of themes, 8-5

skipjoin character, 3-51

querying with, 3-52

soundex expansions

view with expression feedback, 5-5

soundex operator, 3-24

special characters

SQL functions

startjoin character, 3-51

querying, 3-55

stem expansions

viewing with expression feedback, 5-5

stem operator, 3-24

stoplist, 3-2

stopword transformation, D-12

viewing with expression feedback, 5-7

stopwords, 3-2

case-sensitivity, 3-4, 3-49

querying, 3-49

STORE_SQE procedure, 3-37, 10-30

stored query expressions

behavior with FEEDBACK, 10-13

extending, 3-39

iterative queries, 3-39

nesting, 3-40

re-evaluation, 3-38

session and system, 3-38

support of operators, 3-41

using, 3-37

stripping punctuation characters, 3-52

structured field searching

about, 1-9

structured query, 2-8

SUBMIT function, 8-10, 10-50

submitting linguistic requests, 8-11

supported document formats

for Windows 32-bit viewing, 1-17

SYN operator, 3-28, 3-30

synonym operator, 3-28

example, 3-30

table structure

Gist, A-7

MUTAB, A-3

tables

SQE, 3-40

tagged text

text highlighting, 6-2

text index

options, 1-4

text loading, 1-4

text query

about, 1-6

case-sensitivity, 1-7, 3-3

highlighting, 6-7

selecting method, 2-2

theme accumulation

in theme extraction process, 7-12

theme extraction

about, 7-2

text input, 7-5

theme hierarchy generation

setting, 10-46

theme highlighting, 6-2

theme indexing, 4-2

theme proving

in theme extraction process, 7-12

theme query

about, 1-6, 4-4

case-sensitivity, 1-8, 4-5

operators not supported, 4-7

theme query normalization

viewing with expression feedback, 5-6

theme ranking

in theme extraction process

ranking of themes, 7-12

theme summaries, 8-2, 8-6

generating, 8-10, 10-39

presenting, 1-18

theme table

composite textkey, 8-9, A-6

creating, 8-8

structure, A-6

theme weight, 7-4

in theme indexes, 4-4

list of themes, 8-5

themes

about, 7-4

ambiguous, 4-3

generating, 10-42

generating parent themes, 8-11

known, 4-3

list of, 8-5

unknown, 4-3

thesaural query

base-letter, 3-6

thesaurus

calling in queries, 3-30

DEFAULT, 3-30

hierarchy levels, 3-30

thesaurus expansions

viewing with expression feedback, 5-5

thesaurus operators, 3-28

arguments, 3-29

limitations, 3-29

theme queries, 4-7

threshold operator, 3-21

stopword transformations, D-17

token normalization, 7-11

tokens, 7-11

top term operator, 3-28

example, 3-33

transformation

stopword, 3-50, 5-7, D-12

tree-structure of knowledge catalog, 7-8

TT operator, 3-28, 3-33

two-step query, 2-3

alternative, 2-6

example, 2-3, C-5

parallel processing, 2-9

unknown concept in knowledge catalog, 7-10

unknown themes, 4-3

unknown tokens, 7-11

view

using in two-step query, 2-6

viewers

about, 1-17

viewing documents, see document presentation

views

CTX_SQES, 3-40

CTX_USER_SQES, 3-40

weight

in list of themes, 8-5

theme, 4-4, 7-4

weight operator, 3-14, 3-15

stopword transformations, D-17

wildcard characters, 3-35

theme queries, 4-7

wildcard expansions

viewing with expression feedback, 5-5

Windows viewer control

table used, A-4

WITHIN operator, 3-11, 3-12

limitations, 3-13

precedence, 3-44

stopword transformations, D-17

with near, 3-20

Index

Symbols

A

B

C

D

E

F

G

H

I

K

L

M

N

O

P

Q

R

S

T

U

V

W