MELVYL PSYCINFO DATABASE TELNET STATISTICS
Time period: 06/30/01 through 07/06/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 22 99 121
Davis 151 2 153
Irvine 39 0 39
Los Angeles 1 111 112
Riverside 16 24 40
San Diego 7 100 107
San Francisco 37 0 37
Santa Barbara 6 39 45
Santa Cruz 2 26 28
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 42 42
Other-Network UC n/a 148 148
_______ ______ _____
281 591 872
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 15 54 852
2-4 a.m. 16 210 287
4-6 a.m. 18 228 678
6-8 a.m. 23 75 514
8-10 a.m. 95 255 2,328
10-12 a.m. 160 484 5,770
12-2 p.m. 177 554 5,781
2-4 p.m. 170 623 6,424
4-6 p.m. 101 401 4,388
6-8 p.m. 49 168 2,399
8-10 p.m. 21 109 940
10-12 p.m. 27 140 1,619
__________ __________ __________ _________________
Total: 872 3,301 31,980
1.2 FIND commands
__________________
Zero results may indicate no access to the database
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 95 299 394
Davis 808 7 815
Irvine 188 0 188
Los Angeles 7 485 492
Riverside 38 57 95
San Diego 31 382 413
San Francisco 115 0 115
Santa Barbara 20 101 121
Santa Cruz 12 71 83
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 130 130
Other-Network UC n/a 455 455
_______ ______ _____
1,314 1,987 3,301
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 1,266 3,155 4,421
Davis 5,269 38 5,307
Irvine 2,093 0 2,093
Los Angeles 89 5,069 5,158
Riverside 1,040 984 2,024
San Diego 47 3,628 3,675
San Francisco 1,128 0 1,128
Santa Barbara 98 1,874 1,972
Santa Cruz 155 635 790
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 1,150 1,150
Other-Network UC n/a 4,262 4,262
_______ ______ _____
11,185 20,795 31,980
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 1.0
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.1
Standard deviation in seconds 0.1
2.0 PSYCINFO Database Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 7:54
Average session length (minutes:seconds) 13:46
Longest session recorded (minutes:seconds) 530:48
Average number of searches completed per session 3.7
Retrievals per search - median 7.0
Retrievals per search - average 1365.2
Retrievals per search - standard deviation 33873
Percent of searches completed with 0 results 25.3%
Percent of searches entered that are long 2.8%
Percent of long searches completed
(includes partial results) 68.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 2,936 30.4%
DISPLAY (excluding automatic displays) 3,991 41.4%
BROWSE 2 0.0%
SELECT 1 0.0%
HELP 54 0.6%
EXPLAIN 86 0.9%
SET/RESET 244 2.5%
SHOW 31 0.3%
ADD ON (AND, OR, AND NOT) 365 3.8%
LOGON or LOGOFF 1,367 14.2%
COMMENT 0 0.0%
SAVE 305 3.2%
USE 3 0.0%
OTHER 268 2.8%
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 1,394 36.0% 262 18.8% 14 50.7 147.2
TITLE WORD 272 7.0% 80 29.4% 13 104.4 727.7
EXACT TITLE 31 0.8% 11 35.5% 3 16.8 34.5
JOURNAL 53 1.4% 22 41.5% 502 1290.4 1529.0
EXACT JOURNAL 40 1.0% 10 25.0% 313 712.3 1043.4
SUBJECT 148 3.8% 73 49.3% 972 4788.4 18204.2
EXACT SUBJECT 399 10.3% 277 69.4% 2 62.4 403.9
KEYWORD 672 17.3% 73 10.9% 52 6465.8 78699.9
FORM/PUB TYPE 4 0.1% 0 0.0% 9 13.8 16.3
DATE 563 14.5% 298 52.9% 3 13.4 33.8
ADDED 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 0 0.0% 0 0.0% 0 0.0 0.0
AUTHOR AFFIL. 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 4 0.1% 0 0.0% 57 51.5 27.2
ISSN 0 0.0% 0 0.0% 0 0.0 0.0
ISBN 3 0.1% 3 100% 0 0.0 0.0
ID NUMBER 14 0.4% 0 0.0% 1 1.0 0.0
PERIODICAL 27 0.7% 11 40.7% 6 19.6 30.7
EXACT PE 6 0.2% 1 16.7% 2 6.6 8.0
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 243 6.3% 127 52.3% 2 7.5 18.8
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 720 24.8% 349 48.5% 3 15.7 52.1
Single 2,185 75.2% 418 19.1% 30 2474.0 46047.6
BROWSEs completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. BROWSEs No. Index Median Avg. Dev.
______ _______ ______ _______ ______ _______ _______
By index:
SUBJECT 2 100% 0 0.0% 10 9.5 2.1
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 1.6%
SHORT 87.7%
LONG 1.5%
TAGS 1.7%
FIELDS 4.9%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 1.0%
COMMENTS 0.0%
Other 1.6%
2.2 Error, EXPLAIN and HELP statistics
_______________________________________
Percent of commands that contained errors 9.5%
Ten most frequent errors:
1. DISPLAY command - no FIND results 27.8%
2. NS command - no next screen 25.7%
3. First word of command is invalid 20.7%
4. FIND command with invalid index name 5.1%
5. DISPLAY command contains invalid word 4.0%
6. PS command - no previous screen 2.8%
7. Search term missing from search command 1.8%
8. Add-on search, no index name after verb 1.8%
9. NS of SHOW/EXP command-no next screen 1.2%
10. Valid command at an inappropriate time 1.0%
11. All others 8.1%
Ten most frequent EXPLAIN requests:
1. LOCATE (INS/PSY DBS) 32.6%
2. GUIDE 19.8%
3. Unrecognized term 12.8%
4. COMMANDS (ABI/PSY DBS) 5.8%
5. INDEXES (PSY DB) 3.5%
6. PASSWORDS 3.5%
7. SEARCH (PSY DB) 2.3%
8. FIND (PSY DB) 2.3%
9. 1217 2.3%
10. 1219 2.3%
11. All others 12.8%
Ten most frequent HELP situations:
1. Help requested from SET DB command 21.4%
2. First word of command is invalid 14.3%
3. DISPLAY command-complete in one screen 13.6%
4. FIND command retrieves >1 book 7.9%
5. DISPLAY command-first of >1 screen 6.4%
6. DISPLAY command - last of >1 screen 6.4%
7. FIND command with invalid index name 5.0%
8. FIND command with zero results 5.0%
9. DISPLAY command - middle of >1 screen 2.9%
10. SET DB command entered w/o modifier 2.1%
11. All others 15.0%
Ten most frequent SHOW requests:
1. HISTORY 66.7%
2. SEARCH 13.3%
3. GLOSSARY 6.7%
4. SETTINGS (INS/PSY DBS) 3.3%
5. UCSF PASSWORDS 3.3%
6. SYSTEM NEWS 3.3%
7. MAIL STATUS 3.3%
11. All others 0.0%
PSYmm/dd psy MELVYL PSYCINFO DATABASE TELNET STATISTICS (weekly)