MELVYL RLG-Z39.50 DATABASES TELNET STATISTICS
Time period: 12/01/00 through 12/31/00
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 200 453 653
Davis 66 2 68
Irvine 28 0 28
Los Angeles 10 154 164
Riverside 21 0 21
San Diego 22 47 69
San Francisco 16 0 16
Santa Barbara 63 43 106
Santa Cruz 13 10 23
Other - UC 4 23 27
Other-Network UC n/a 105 105
_______ ______ _____
443 837 1,280
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 9 22 355
2-4 a.m. 6 11 570
4-6 a.m. 4 3 1
6-8 a.m. 11 26 304
8-10 a.m. 115 278 1,833
10-12 a.m. 288 726 7,057
12-2 p.m. 260 830 6,985
2-4 p.m. 280 863 8,001
4-6 p.m. 167 484 4,038
6-8 p.m. 82 203 2,330
8-10 p.m. 43 120 1,674
10-12 p.m. 15 60 446
__________ __________ __________ _________________
Total: 1,280 3,626 33,594
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 586 1,210 1,796
Davis 159 2 161
Irvine 86 0 86
Los Angeles 35 499 534
Riverside 44 0 44
San Diego 103 109 212
San Francisco 26 0 26
Santa Barbara 273 124 397
Santa Cruz 35 45 80
Other - UC 3 86 89
Other-Network UC n/a 201 201
_______ ______ _____
1,350 2,276 3,626
Number of FIND commands by database
RLIN Bibliographic File 2,239
Anthropological Literature 515
Avery Index to Architectural Per. 436
History of Science & Technology 136
Index to Foreign Legal Periodical 24
World Law Index-Hispanic Legis 0
Handbook of Latin Amer. Studies 0
Chicano 177
English Short Title Catalogue 99
Total number of FIND commands 3,626
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 5,639 10,812 16,451
Davis 1,496 42 1,538
Irvine 457 0 457
Los Angeles 368 4,025 4,393
Riverside 38 0 38
San Diego 1,062 1,858 2,920
San Francisco 270 0 270
Santa Barbara 2,871 1,266 4,137
Santa Cruz 410 122 532
Other - UC 275 787 1,062
Other-Network UC n/a 1,796 1,796
_______ ______ _____
12,886 20,708 33,594
Number of Records Displayed by database
RLIN Bibliographic File 24,252
Anthropological Literature 4,801
Avery Index to Architectural Per. 2,270
History of Science & Technology 660
Index to Foreign Legal Periodical 92
World Law Index-Hispanic Legis 0
Handbook of Latin Amer. Studies 0
Chicano 815
English Short Title Catalogue 704
Total number of Records Displayed 33,594
1.4 Relative Use of Databases
______________________________
Relative use of RLG-Z39.50 databases: Sessions Percentage
RLIN Bibliographic File 796 62.2%
Anthropological Literature 197 15.4%
Avery Index to Architectural Per. 151 11.8%
History of Science & Technology 46 3.6%
Index to Foreign Legal Periodical 6 0.5%
World Law Index-Hispanic Legis 0 0.0%
Handbook of Latin Amer. Studies 0 0.0%
Chicano 56 4.4%
English Short Title Catalogue 28 2.2%
Percent of searches done in the RCAT database 61.7%
Percent of searches done in the ANTH database 14.2%
Percent of searches done in the ARCH database 12.0%
Percent of searches done in the HSCI database 3.8%
Percent of searches done in the FLEG database 0.7%
Percent of searches done in the HLEG database 0.0%
Percent of searches done in the HLAS database 0.0%
Percent of searches done in the CDB database 4.9%
Percent of searches done in the ESTC database 2.7%
1.5 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 2.7
Standard deviation in seconds 10.3
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.2
Standard deviation in seconds 0.4
2.1 RLIN Bibliographic File Database Statistics
________________________________________________
Median session length (minutes:seconds) 12:35
Average session length (minutes:seconds) 16:07
Longest session recorded (minutes:seconds) 214:41
Average number of searches completed per session 2.8
Retrievals per search - median 3.0
Retrievals per search - average 150.3
Retrievals per search - standard deviation 1831.1
Percent of searches completed with 0 results 24.9%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 2,098 32.3%
DISPLAY (excluding automatic displays) 2,707 41.7%
HELP 38 0.6%
EXPLAIN 59 0.9%
SET/RESET 510 7.8%
SHOW 13 0.2%
ADD ON (AND, OR, AND NOT) 141 2.2%
LOGON or LOGOFF 744 11.4%
COMMENT 1 0.0%
USE 4 0.1%
OTHER 184 2.8%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 11.3%
SHORT 52.8%
LONG 16.3%
TAGS 0.3%
FIELDS 4.1%
PERIODICALS 4.2%
COMMENTS 0.0%
Other 11.0%
RLIN Bibliographic File Database Statistics continued:
______________________________________________________
FINDs completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By index:
PERSONAL AUTHOR 675 27.9% 115 17.0% 11 95.3 418.2
EXACT AUTHOR 23 1.0% 2 8.7% 9 13.9 13.1
CORPORATE AUTHOR 30 1.2% 7 23.3% 10 147.7 550.0
EXACT CORPORATE 2 0.1% 0 0.0% 12 12.0 5.7
TITLE WORD 863 35.7% 263 30.5% 6 386.1 3464.2
EXACT TITLE/SERI 317 13.1% 82 25.9% 4 75.5 412.9
EXACT JOURNAL 1 0.0% 0 0.0% 6 6.0 0.0
SUBJECT 123 5.1% 22 17.9% 14 93.4 450.8
EXACT SUBJECT 27 1.1% 3 11.1% 26 377.6 1076.0
SERIES 24 1.0% 6 25.0% 24 103.0 123.1
CONFERENCE 0 0.0% 0 0.0% 0 0.0 0.0
EXACT CONFERENCE 0 0.0% 0 0.0% 0 0.0 0.0
FORM 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 17 0.7% 2 11.8% 19 43.6 63.3
DATE 0 0.0% 0 0.0% 0 0.0 0.0
GOV DOC NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
REPORT NUMBER 1 0.0% 1 100% 0 0.0 0.0
GE 0 0.0% 0 0.0% 0 0.0 0.0
NOTES 0 0.0% 0 0.0% 0 0.0 0.0
MUSIC PUBLISHER 0 0.0% 0 0.0% 0 0.0 0.0
ACCESSION NUMBER 1 0.0% 1 100% 0 0.0 0.0
PLACE OF PUBL. 1 0.0% 0 0.0% 107 107.0 0.0
UNIFORM TITLE 2 0.1% 1 50.0% 25 25.0 0.0
XOT 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 75 3.1% 30 40.0% 7 84.0 198.6
EXACT PE 19 0.8% 5 26.3% 4 24.5 37.2
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 0 0.0% 0 0.0% 0 0.0 0.0
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 219 9.0% 47 21.5% 10 20.1 32.2
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By number of indexes:
Multiple 313 15.0% 64 20.4% 9 18.4 29.6
Single 1,768 85.0% 456 25.8% 8 248.0 2376.1
2.2 Anthropological Literature Database Statistics
___________________________________________________
Median session length (minutes:seconds) 4:18
Average session length (minutes:seconds) 10:25
Longest session recorded (minutes:seconds) 346:43
Average number of searches completed per session 2.6
Retrievals per search - median 3.0
Retrievals per search - average 88.4
Retrievals per search - standard deviation 533.4
Percent of searches completed with 0 results 33.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 506 35.2%
DISPLAY (excluding automatic displays) 358 24.9%
HELP 71 4.9%
EXPLAIN 85 5.9%
SET/RESET 62 4.3%
SHOW 6 0.4%
ADD ON (AND, OR, AND NOT) 9 0.6%
LOGON or LOGOFF 281 19.6%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 58 4.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 5.9%
SHORT 74.1%
LONG 6.6%
TAGS 2.2%
FIELDS 3.5%
PERIODICALS 5.9%
COMMENTS 0.0%
Other 1.8%
Anthropological Literature Database Statistics continued:
_________________________________________________________
FINDs completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By index:
PERSONAL AUTHOR 139 26.7% 45 32.4% 11 16.2 21.6
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 149 28.6% 41 27.5% 10 62.6 146.0
EXACT TITLE 15 2.9% 8 53.3% 1 13.7 20.7
SUBJECT 183 35.1% 69 37.7% 22 275.1 987.5
EXACT SUBJECT 1 0.2% 0 0.0% 1 1.0 0.0
EXACT JOURNAL 9 1.7% 3 33.3% 40 81.0 118.8
DATE 0 0.0% 0 0.0% 0 0.0 0.0
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 9 1.7% 3 33.3% 4 895.2 2181.4
EXACT PE 13 2.5% 5 38.5% 6 6.8 4.5
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 0 0.0% 0 0.0% 0 0.0 0.0
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 3 0.6% 1 33.3% 1 1.0 0.0
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By number of indexes:
Multiple 15 3.0% 8 53.3% 1 19.4 48.8
Single 491 97.0% 159 32.4% 12 136.7 659.7
2.3 Avery Index to Architectural Per. Database Statistics
__________________________________________________________
Median session length (minutes:seconds) 3:44
Average session length (minutes:seconds) 9:41
Longest session recorded (minutes:seconds) 122:06
Average number of searches completed per session 2.9
Retrievals per search - median 2.5
Retrievals per search - average 90.0
Retrievals per search - standard deviation 559.5
Percent of searches completed with 0 results 38.1%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 417 36.4%
DISPLAY (excluding automatic displays) 356 31.1%
HELP 23 2.0%
EXPLAIN 10 0.9%
SET/RESET 61 5.3%
SHOW 5 0.4%
ADD ON (AND, OR, AND NOT) 19 1.7%
LOGON or LOGOFF 194 16.9%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 61 5.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 1.9%
SHORT 57.4%
LONG 28.1%
TAGS 0.0%
FIELDS 1.9%
PERIODICALS 9.8%
COMMENTS 0.0%
Other 0.9%
Avery Index to Architectural Per. Database Statistics continued:
________________________________________________________________
FINDs completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By index:
PERSONAL AUTHOR 65 14.8% 31 47.7% 9 34.6 82.2
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
CORPORATE AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
EXACT CORPORATE 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 45 10.3% 21 46.7% 6 81.3 251.3
EXACT TITLE 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 289 65.8% 104 36.0% 12 143.4 782.8
EXACT SUBJECT 3 0.7% 2 66.7% 394 394.0 0.0
EXACT JOURNAL 18 4.1% 8 44.4% 325 814.1 1261.8
CONFERENCE 0 0.0% 0 0.0% 0 0.0 0.0
EXACT CONFERENCE 0 0.0% 0 0.0% 0 0.0 0.0
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
DATE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 2 0.5% 0 0.0% 18 18.0 18.4
PLACE OF PUBL. 0 0.0% 0 0.0% 0 0.0 0.0
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 11 2.5% 1 9.1% 52 67.9 90.2
EXACT PE 0 0.0% 0 0.0% 0 0.0 0.0
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 0 0.0% 0 0.0% 0 0.0 0.0
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 6 1.4% 5 83.3% 2 2.0 0.0
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By number of indexes:
Multiple 21 5.0% 12 57.1% 2 6.2 9.5
Single 396 95.0% 148 37.4% 17 156.4 735.4
2.4 History of Science & Technology Database Statistics
________________________________________________________
Median session length (minutes:seconds) 3:02
Average session length (minutes:seconds) 6:09
Longest session recorded (minutes:seconds) 24:52
Average number of searches completed per session 2.9
Retrievals per search - median 1.0
Retrievals per search - average 22.2
Retrievals per search - standard deviation 112.2
Percent of searches completed with 0 results 48.9%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 136 37.5%
DISPLAY (excluding automatic displays) 77 21.2%
HELP 25 6.9%
EXPLAIN 18 5.0%
SET/RESET 5 1.4%
SHOW 4 1.1%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 80 22.0%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 18 5.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 8.0%
SHORT 81.0%
LONG 6.0%
TAGS 4.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 1.0%
History of Science & Technology Database Statistics continued:
______________________________________________________________
FINDs completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By index:
PERSONAL AUTHOR 75 55.6% 37 49.3% 6 15.3 28.0
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 38 28.1% 20 52.6% 13 22.9 32.7
EXACT TITLE 3 2.2% 3 100% 0 0.0 0.0
EXACT JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 19 14.1% 6 31.6% 20 154.5 338.8
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
SERIES 0 0.0% 0 0.0% 0 0.0 0.0
EXACT SERIES 0 0.0% 0 0.0% 0 0.0 0.0
NOTES 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT CATEGORY 0 0.0% 0 0.0% 0 0.0 0.0
DATE 0 0.0% 0 0.0% 0 0.0 0.0
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 0 0.0% 0 0.0% 0 0.0 0.0
EXACT PE 0 0.0% 0 0.0% 0 0.0 0.0
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 0 0.0% 0 0.0% 0 0.0 0.0
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 0 0.0% 0 0.0% 0 0.0 0.0
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By number of indexes:
Multiple 0 0.0% 0 0.0% 0 0.0 0.0
Single 135 100% 66 48.9% 7 43.5 154.5
2.5 Index to Foreign Legal Periodical Database Statistics
__________________________________________________________
Median session length (minutes:seconds) 3:19
Average session length (minutes:seconds) 3:35
Longest session recorded (minutes:seconds) 8:17
Average number of searches completed per session 4.0
Retrievals per search - median 0.5
Retrievals per search - average 64.8
Retrievals per search - standard deviation 131.1
Percent of searches completed with 0 results 50.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 22 44.9%
DISPLAY (excluding automatic displays) 8 16.3%
HELP 2 4.1%
EXPLAIN 2 4.1%
SET/RESET 2 4.1%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 2 4.1%
LOGON or LOGOFF 10 20.4%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 1 2.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 0.0%
SHORT 50.0%
LONG 8.3%
TAGS 0.0%
FIELDS 41.7%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 0.0%
Index to Foreign Legal Periodical Database Statistics continued:
________________________________________________________________
FINDs completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By index:
DATE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 0 0.0% 0 0.0% 0 0.0 0.0
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
AUTHOR 3 13.6% 2 66.7% 3 3.0 0.0
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 3 13.6% 1 33.3% 5 4.5 4.9
EXACT TITLE 1 4.5% 1 100% 0 0.0 0.0
EXACT JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 15 68.2% 6 40.0% 94 171.3 170.3
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
DATE 0 0.0% 0 0.0% 0 0.0 0.0
PLACE OF PUBL. 0 0.0% 0 0.0% 0 0.0 0.0
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 0 0.0% 0 0.0% 0 0.0 0.0
EXACT PE 0 0.0% 0 0.0% 0 0.0 0.0
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 0 0.0% 0 0.0% 0 0.0 0.0
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 0 0.0% 0 0.0% 0 0.0 0.0
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By number of indexes:
Multiple 0 0.0% 0 0.0% 0 0.0 0.0
Single 22 100% 10 45.5% 75 129.5 163.7
2.6 Chicano Database Statistics
________________________________
Median session length (minutes:seconds) 3:13
Average session length (minutes:seconds) 6:04
Longest session recorded (minutes:seconds) 27:27
Average number of searches completed per session 3.2
Retrievals per search - median 0.0
Retrievals per search - average 55.4
Retrievals per search - standard deviation 336.6
Percent of searches completed with 0 results 54.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 177 38.9%
DISPLAY (excluding automatic displays) 77 16.9%
HELP 40 8.8%
EXPLAIN 40 8.8%
SET/RESET 6 1.3%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 98 21.5%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 17 3.7%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 3.0%
SHORT 85.9%
LONG 9.1%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 2.0%
Chicano Database Statistics continued:
______________________________________
FINDs completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By index:
PERSONAL AUTHOR 35 19.7% 18 51.4% 14 28.6 36.3
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
CORPORATE AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
EXACT CORPORATE 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 27 15.2% 14 51.9% 6 14.5 20.3
EXACT TITLE 9 5.1% 6 66.7% 2 2.3 0.6
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 101 56.7% 55 54.5% 8 197.8 643.7
EXACT SUBJECT 6 3.4% 5 83.3% 27 27.0 0.0
EXACT JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
DATE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 0 0.0% 0 0.0% 0 0.0 0.0
EXACT PE 0 0.0% 0 0.0% 0 0.0 0.0
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 0 0.0% 0 0.0% 0 0.0 0.0
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 0 0.0% 0 0.0% 0 0.0 0.0
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By number of indexes:
Multiple 1 0.6% 1 100% 0 0.0 0.0
Single 176 99.4% 96 54.5% 10 122.6 494.1
2.7 English Short Title Catalogue Database Statistics
______________________________________________________
Median session length (minutes:seconds) 8:23
Average session length (minutes:seconds) 9:36
Longest session recorded (minutes:seconds) 35:09
Average number of searches completed per session 3.5
Retrievals per search - median 1.0
Retrievals per search - average 43.8
Retrievals per search - standard deviation 179.1
Percent of searches completed with 0 results 42.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 98 38.1%
DISPLAY (excluding automatic displays) 83 32.3%
HELP 8 3.1%
EXPLAIN 9 3.5%
SET/RESET 6 2.3%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 1 0.4%
LOGON or LOGOFF 44 17.1%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 8 3.1%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 3.8%
SHORT 52.9%
LONG 39.4%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 3.8%
English Short Title Catalogue Database Statistics continued:
____________________________________________________________
FINDs completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By index:
SUBJECT 6 4.8% 5 83.3% 2 2.0 0.0
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
AUTHOR 34 27.0% 19 55.9% 3 9.8 13.7
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
CORPORATE AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
EXACT CORP. AUTH 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 66 52.4% 18 27.3% 2 88.0 250.9
EXACT TITLE 1 0.8% 1 100% 0 0.0 0.0
UNIFORM TITLE 0 0.0% 0 0.0% 0 0.0 0.0
EXACT UNIFORM TI 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 2 1.6% 2 100% 0 0.0 0.0
PUBLICATION TYPE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLISHER 0 0.0% 0 0.0% 0 0.0 0.0
IMPRINT YEAR 16 12.7% 5 31.3% 2 7.4 12.3
COUNTRY CODE 0 0.0% 0 0.0% 0 0.0 0.0
SHELFMARK 0 0.0% 0 0.0% 0 0.0 0.0
HOLDING LIBRARY 0 0.0% 0 0.0% 0 0.0 0.0
INDEXED BY 0 0.0% 0 0.0% 0 0.0 0.0
NOTES 0 0.0% 0 0.0% 0 0.0 0.0
PLACE OF PUBL 0 0.0% 0 0.0% 0 0.0 0.0
DATE 1 0.8% 0 0.0% 25 25.0 0.0
LANGUAGE 0 0.0% 0 0.0% 0 0.0 0.0
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 0 0.0% 0 0.0% 0 0.0 0.0
EXACT PE 0 0.0% 0 0.0% 0 0.0 0.0
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 0 0.0% 0 0.0% 0 0.0 0.0
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 0 0.0% 0 0.0% 0 0.0 0.0
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By number of indexes:
Multiple 28 28.6% 9 32.1% 2 7.4 11.1
Single 70 71.4% 32 45.7% 4 110.5 278.4
3.0 Error, EXPLAIN and HELP statistics (All RLG-Z39.50 databases)
__________________________________________________________________
Percent of commands that contained errors 12.2%
Ten most frequent errors:
1. First word of command is invalid 25.9%
2. NS command - no next screen 21.7%
3. FIND command with invalid index name 10.8%
4. Index invalid in current database 4.8%
5. Max. # of ports to a Z39 db are in use 3.3%
6. DISPLAY command contains invalid word 2.5%
7. PS command - no previous screen 2.0%
8. Valid command at an inappropriate time 2.0%
9. Search term missing from search command 1.6%
10. Z39.50 host unable to process search 1.2%
11. All others 24.3%
Ten most frequent EXPLAIN requests:
1. GUIDE (Z39.50 A&I DBS) 22.4%
2. LOCATE (Z39.50 DBS) 16.6%
3. FIND (Z39.50 DBS) 13.0%
4. LOCATE (Z39.50 DBS) 5.8%
5. INDEXES (RCAT DB) 4.9%
6. COMMANDS (Z39.50 DBS) 4.5%
7. INDEXES (ANTH DB) 4.5%
8. Unrecognized term 3.6%
9. GUIDE (Z39.50 non-A&I DBS) 3.1%
10. DISPLAY (Z39.50 DBS) 2.2%
11. All others 19.3%
Ten most frequent HELP situations:
1. Help requested from SET DB command 24.2%
2. First word of command is invalid 20.0%
3. DISPLAY command-complete in one screen 8.4%
4. FIND command with invalid index name 7.7%
5. FIND command with zero results 6.0%
6. F/BR with index invalid in current DB 6.0%
7. DISPLAY command - middle of >1 screen 4.0%
8. DISPLAY command-first of >1 screen 3.5%
9. FIND command retrieves 1 book 2.6%
10. DISPLAY command - last of >1 screen 2.3%
11. All others 15.3%
Ten most frequent SHOW requests:
1. HISTORY 57.1%
2. SEARCH 32.1%
3. SETTINGS (Z39.50 DBS) 7.1%
4. LOCAL INFORMATION 3.6%
11. All others 0.0%
RLGmm/dd rlg MELVYL RLG-Z39.50 DATABASES TELNET STATISTICS (weekly)