MELVYL PSYCINFO DATABASE TELNET STATISTICS
Time period: 07/01/01 through 07/31/01
1.0 SUMMARY STATISTICS
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1.1 Total sessions:
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Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 136 626 762
Davis 640 6 646
Irvine 211 0 211
Los Angeles 6 546 552
Riverside 38 104 142
San Diego 23 438 461
San Francisco 232 0 232
Santa Barbara 20 131 151
Santa Cruz 78 108 186
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 5 173 178
Other-Network UC n/a 621 621
_______ ______ _____
1,389 2,753 4,142
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 57 186 3,668
2-4 a.m. 92 1,136 4,400
4-6 a.m. 88 1,145 4,002
6-8 a.m. 92 281 1,967
8-10 a.m. 402 1,171 10,965
10-12 a.m. 814 2,565 25,226
12-2 p.m. 721 2,545 24,597
2-4 p.m. 822 3,048 29,187
4-6 p.m. 576 2,474 23,156
6-8 p.m. 212 872 11,693
8-10 p.m. 130 517 8,175
10-12 p.m. 136 501 5,383
__________ __________ __________ _________________
Total: 4,142 16,441 152,419
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 549 2,272 2,821
Davis 3,668 15 3,683
Irvine 799 0 799
Los Angeles 26 2,228 2,254
Riverside 198 474 672
San Diego 134 1,462 1,596
San Francisco 922 0 922
Santa Barbara 72 424 496
Santa Cruz 220 359 579
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 10 616 626
Other-Network UC n/a 1,993 1,993
_______ ______ _____
6,598 9,843 16,441
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 5,837 22,281 28,118
Davis 23,630 60 23,690
Irvine 6,681 0 6,681
Los Angeles 223 24,697 24,920
Riverside 3,149 4,555 7,704
San Diego 594 15,402 15,996
San Francisco 9,730 0 9,730
Santa Barbara 487 5,141 5,628
Santa Cruz 2,266 3,790 6,056
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 206 4,750 4,956
Other-Network UC n/a 18,940 18,940
_______ ______ _____
52,803 99,616 152,419
1.4 Response time
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Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.4
Standard deviation in seconds 0.9
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
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Median session length (minutes:seconds) 7:04
Average session length (minutes:seconds) 12:53
Longest session recorded (minutes:seconds) 530:48
Average number of searches completed per session 3.9
Retrievals per search - median 6.0
Retrievals per search - average 692.3
Retrievals per search - standard deviation 16220
Percent of searches completed with 0 results 25.3%
Percent of searches entered that are long 2.9%
Percent of long searches completed
(includes partial results) 73.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 14,722 30.3%
DISPLAY (excluding automatic displays) 20,078 41.4%
BROWSE 37 0.1%
SELECT 1 0.0%
HELP 357 0.7%
EXPLAIN 399 0.8%
SET/RESET 1,460 3.0%
SHOW 112 0.2%
ADD ON (AND, OR, AND NOT) 1,719 3.5%
LOGON or LOGOFF 5,988 12.3%
COMMENT 0 0.0%
SAVE 2,383 4.9%
USE 2 0.0%
OTHER 1,322 2.7%
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 6,639 33.8% 1,148 17.3% 14 61.2 184.9
TITLE WORD 1,605 8.2% 481 30.0% 9 153.4 846.9
EXACT TITLE 144 0.7% 47 32.6% 2 28.6 83.3
JOURNAL 365 1.9% 124 34.0% 264 1655.4 4862.3
EXACT JOURNAL 207 1.1% 40 19.3% 310 939.2 1935.4
SUBJECT 770 3.9% 380 49.3% 559 5446.5 14153.1
EXACT SUBJECT 2,074 10.6% 1,313 63.3% 2 249.9 2178.6
KEYWORD 3,287 16.7% 477 14.5% 41 2375.2 37737.7
FORM/PUB TYPE 70 0.4% 6 8.6% 44 419.0 1002.7
DATE 2,928 14.9% 1,439 49.1% 3 17.8 80.4
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. 6 0.0% 3 50.0% 6 4445.3 7690.9
CONFERENCE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 19 0.1% 1 5.3% 76 528.3 1432.4
ISSN 1 0.0% 1 100% 0 0.0 0.0
ISBN 4 0.0% 4 100% 0 0.0 0.0
ID NUMBER 70 0.4% 0 0.0% 1 1.0 0.0
PERIODICAL 157 0.8% 44 28.0% 3 88.1 313.2
EXACT PE 49 0.2% 10 20.4% 2 8.0 14.7
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 1,229 6.3% 572 46.5% 2 11.5 34.5
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 3,716 25.5% 1,648 44.3% 3 33.6 242.4
Single 10,880 74.5% 2,176 20.0% 28 1148.9 21721.1
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 37 100% 10 27.0% 3 6.6 7.7
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 2.1%
SHORT 88.1%
LONG 1.0%
TAGS 1.2%
FIELDS 4.5%
BROWSE REVIEW 0.1%
BROWSE LONG 0.1%
PERIODICALS 1.1%
COMMENTS 0.0%
Other 1.9%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 9.9%
Ten most frequent errors:
1. NS command - no next screen 27.6%
2. DISPLAY command - no FIND results 25.6%
3. First word of command is invalid 20.3%
4. FIND command with invalid index name 5.7%
5. PS command - no previous screen 3.8%
6. DISPLAY command contains invalid word 3.5%
7. Search term missing from search command 1.7%
8. Valid command at an inappropriate time 1.5%
9. Add-on search, no index name after verb 1.3%
10. DISPLAY command-record numbers too large 1.0%
11. All others 8.0%
Ten most frequent EXPLAIN requests:
1. LOCATE (INS/PSY DBS) 25.1%
2. GUIDE 16.3%
3. FIND (PSY DB) 9.5%
4. COMMANDS (ABI/PSY DBS) 6.3%
5. INDEXES (PSY DB) 6.3%
6. Unrecognized term 5.8%
7. MAIL 3.5%
8. DATABASES 3.5%
9. DISPLAY (INS/PSY DBS) 2.8%
10. ADDON SEARCH 2.0%
11. All others 19.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 18.4%
2. First word of command is invalid 13.6%
3. DISPLAY command-first of >1 screen 9.1%
4. DISPLAY command - middle of >1 screen 6.3%
5. FIND command with invalid index name 6.1%
6. FIND command with zero results 5.3%
7. FIND command retrieves >1 book 4.8%
8. DISPLAY command - last of >1 screen 4.6%
9. NS command - no next screen 4.5%
10. DISPLAY command-complete in one screen 3.8%
11. All others 23.4%
Ten most frequent SHOW requests:
1. HISTORY 50.9%
2. SEARCH 23.1%
3. MAIL STATUS 9.3%
4. PSYCINFO NEWS 5.6%
5. GLOSSARY 3.7%
6. MAIL SETTINGS 3.7%
7. SETTINGS (INS/PSY DBS) 0.9%
8. PSYCINFO LOADING STATISTICS 0.9%
9. UCSF PASSWORDS 0.9%
10. SYSTEM NEWS 0.9%
11. All others 0.0%
PSYmm/dd psy MELVYL PSYCINFO DATABASE TELNET STATISTICS (weekly)