MELVYL CATALOG DATABASE TELNET STATISTICS
Time period: 06/16/01 through 06/22/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 412 1,817 2,229
Davis 1,220 170 1,390
Irvine 486 0 486
Los Angeles 2 434 436
Riverside 397 61 458
San Diego 317 135 452
San Francisco 212 0 212
Santa Barbara 181 170 351
Santa Cruz 283 113 396
LBL 0 69 69
LLL 0 36 36
Other - UC 22 130 152
CSL 0 143 143
CSU n/a 77 77
Other-Non-UC n/a 3,640 3,640
_______ ______ _____
3,532 6,995 10,527
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 256 868 7,748
2-4 a.m. 174 465 4,603
4-6 a.m. 204 548 4,310
6-8 a.m. 427 1,217 10,670
8-10 a.m. 1,604 5,723 47,062
10-12 a.m. 2,043 6,893 54,581
12-2 p.m. 1,689 5,468 43,562
2-4 p.m. 1,986 6,480 47,825
4-6 p.m. 1,232 3,790 30,874
6-8 p.m. 359 950 6,468
8-10 p.m. 289 830 9,807
10-12 p.m. 264 601 4,241
__________ __________ __________ _________________
Total: 10,527 33,833 271,751
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 1,182 6,089 7,271
Davis 3,956 946 4,902
Irvine 1,359 0 1,359
Los Angeles 2 933 935
Riverside 1,146 137 1,283
San Diego 831 261 1,092
San Francisco 387 0 387
Santa Barbara 478 357 835
Santa Cruz 1,353 314 1,667
LBL 0 134 134
LLL 0 145 145
Other - UC 22 573 595
CSL 0 370 370
CSU n/a 284 284
Other-Non-UC n/a 12,574 12,574
_______ ______ _____
10,716 23,117 33,833
1.3 Records Displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 8,833 48,158 56,991
Davis 27,086 4,328 31,414
Irvine 11,911 0 11,911
Los Angeles 7 10,628 10,635
Riverside 9,174 980 10,154
San Diego 4,376 4,448 8,824
San Francisco 2,248 0 2,248
Santa Barbara 4,345 3,059 7,404
Santa Cruz 6,314 2,333 8,647
LBL 0 1,629 1,629
LLL 0 2,094 2,094
Other - UC 138 2,815 2,953
CSL 0 2,911 2,911
CSU n/a 4,356 4,356
Other-Non-UC n/a 109,580 109,580
_______ ______ _____
74,432 197,319 271,751
1.4 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.5
Standard deviation in seconds 1.7
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
2.0 COMMAND mode statistics:
____________________________
Median session length (minutes:seconds) 10:47
Average session length (minutes:seconds) 15:23
Longest session recorded (minutes:seconds) 1096
Average number of searches completed per session 3.2
Retrievals per search - median 2.0
Retrievals per search - average 79.5
Retrievals per search - standard deviation 1137.2
Percent of searches completed with 0 results 26.1%
Percent of searches entered that are long 3.9%
Percent of long searches completed
(includes partial results) 66.2%
Commands entered, by type, excluding errors:
Total Percentage
FIND 32,763 35.5%
DISPLAY (excluding automatic displays) 29,999 32.5%
ACFIND 5 0.0%
BROWSE 167 0.2%
SELECT 77 0.1%
HELP 486 0.5%
EXPLAIN 606 0.7%
SET/RESET 2,647 2.9%
SHOW 184 0.2%
AT 1,781 1.9%
ADD ON (AND, OR, AND NOT) 1,062 1.2%
LOGON or LOGOFF 16,989 18.4%
COMMENT 0 0.0%
SAVE 794 0.9%
USE 766 0.8%
OTHER 3,888 4.2%
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 AUTH 4,976 14.5% 1,132 22.7% 10 99.9 737.9
AUTHOR 1,279 3.7% 301 23.5% 15 106.7 370.9
CORPORATE AUTH 319 0.9% 103 32.3% 27 725.8 3077.6
EXACT CA 5 0.0% 1 20.0% 96 97.5 95.3
TITLE WORD 8,142 23.8% 2,585 31.7% 4 51.3 659.4
EXACT TITLE 5,200 15.2% 1,419 27.3% 2 27.8 177.1
TITLE -> TW 851 2.5% 227 26.7% 10 96.7 820.6
TITLE -> XT 1,255 3.7% 587 46.8% 1 8.0 41.8
SUBJECT 1,369 4.0% 484 35.4% 43 395.4 1331.0
EXACT SUBJECT 47 0.1% 10 21.3% 130 625.6 1231.6
PERIODICAL 6,140 17.9% 1,151 18.7% 5 112.9 1491.8
EXACT PE 2,234 6.5% 306 13.7% 3 64.2 1340.9
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 1 0.0% 0 0.0% 4 4.0 0.0
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 62 0.2% 7 11.3% 168 7306.4 17191.3
DATE 345 1.0% 80 23.2% 5 74.9 706.7
FORM 403 1.2% 124 30.8% 9 138.6 963.3
NUMBER* 28 0.1% 18 64.3% 2 29.1 55.0
MUSIC* 8 0.0% 3 37.5% 71 455.8 588.8
SERIES 861 2.5% 275 31.9% 3 76.9 310.4
UNIFORM TITLE 9 0.0% 3 33.3% 122 176.7 243.9
Other indexes 669 2.0% 243 36.3% 1 10.3 60.3
* Number indexes include REPORT NUMBER STOCK NUMBER,
GOVERNMENT DOCUMENTS, and GPO ITEM NUMBER;
Music indexes include MUSICAL KEY, MUSIC PUBLISHER, and THEMATIC
By number of indexes:
Multiple 1,781 5.5% 519 29.1% 3 61.4 576.7
Single 30,535 94.5% 7,996 26.2% 4 111.5 1365.8
BROWSEs completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. BROs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By index:
PERSONAL AUTH 7 4.5% 3 42.9% 11 18.3 19.5
CORPORATE AUTH 4 2.6% 2 50.0% 83 83.0 107.5
EXACT CA 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 130 84.4% 22 16.9% 32 118.3 250.4
EXACT SUBJECT 3 1.9% 1 33.3% 5 5.0 5.7
UNIFORM TITLE 1 0.6% 1 100% 0 0.0 0.0
SERIES 9 5.8% 5 55.6% 2 8.3 13.2
By number of indexes:
Multiple 0 0.0% 0 0.0% 0 0.0 0.0
Single 161 100% 35 21.7% 24 105.8 234.5
DISPLAY commands, by type, excluding automatic displays:
REVIEW 9.6%
BRIEF 66.4%
LONG 11.5%
MARC 4.3%
FIELDS 2.3%
TAG 2.9%
PERIODICALS 0.0%
COMMENTS 0.0%
Other (includes BROWSE, ACFIND) 3.0%
3.0 Error, EXPLAIN and HELP statistics
__________________________________________________________
Percent of commands that contained errors 7.6%
Ten most frequent errors:
1. NS command - no next screen 32.4%
2. First word of command is invalid 25.9%
3. FIND command with invalid index name 10.8%
4. DISPLAY command contains invalid word 4.1%
5. Max. # of ports to a Z39 db are in use 3.0%
6. Search term missing from search command 2.4%
7. PS command - no previous screen 2.2%
8. KW search in database w/o KW index 1.8%
9. Valid command at an inappropriate time 1.6%
10. DISPLAY command - no FIND results 1.5%
11. All others 14.4%
Ten most frequent EXPLAIN requests:
1. GUIDE 22.4%
2. FIND 12.9%
3. INDEXES 6.8%
4. Unrecognized term 5.6%
5. COMMAND WORDS 4.8%
6. PASSWORDS 4.3%
7. DATABASES 3.5%
8. DISPLAY 2.5%
9. CATALOG 1.5%
10. 1773 1.3%
11. All others 34.5%
Ten most frequent HELP situations:
1. Command mode selected from Welcome 25.9%
2. First word of command is invalid 13.5%
3. FIND command with invalid index name 9.6%
4. DISPLAY command - middle of >1 screen 3.6%
5. DISPLAY command-complete in one screen 3.0%
6. Help requested from SET DB command 2.6%
7. FIND command retrieves >1 book 2.5%
8. DISPLAY command - last of >1 screen 2.2%
9. NS command - no next screen 2.0%
10. DISPLAY command-first of >1 screen 1.9%
11. All others 33.2%
Ten most frequent SHOW requests:
1. HISTORY 43.4%
2. SEARCH 10.3%
3. GLOSSARY 9.7%
4. SETTINGS 5.1%
5. DATABASES 1.7%
6. 0210 1.1%
7. UCSF PASSWORDS 1.1%
8. LIBRARIES 1.1%
9. PAGESIZE 1.1%
10. TERMINAL 1.1%
11. All others 24.0%
CATmm/dd cat MELVYL CATALOG DATABASE TELNET STATISTICS (weekly)