MELVYL PSYCINFO DATABASE TELNET STATISTICS
Time period: 09/01/01 through 09/07/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 12 70 82
Davis 115 0 115
Irvine 31 0 31
Los Angeles 0 82 82
Riverside 3 14 17
San Diego 4 69 73
San Francisco 31 0 31
Santa Barbara 6 52 58
Santa Cruz 10 14 24
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 28 28
Other-Network UC n/a 126 126
_______ ______ _____
212 455 667
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 15 55 295
2-4 a.m. 16 264 1,384
4-6 a.m. 12 252 1,267
6-8 a.m. 14 44 352
8-10 a.m. 65 173 1,761
10-12 a.m. 125 384 3,290
12-2 p.m. 118 378 4,489
2-4 p.m. 143 607 5,142
4-6 p.m. 68 313 2,049
6-8 p.m. 44 188 1,748
8-10 p.m. 29 165 1,685
10-12 p.m. 18 79 1,066
__________ __________ __________ _________________
Total: 667 2,902 24,528
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 20 297 317
Davis 804 0 804
Irvine 240 0 240
Los Angeles 0 325 325
Riverside 5 96 101
San Diego 21 217 238
San Francisco 150 0 150
Santa Barbara 29 220 249
Santa Cruz 10 38 48
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 96 96
Other-Network UC n/a 334 334
_______ ______ _____
1,279 1,623 2,902
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 152 3,185 3,337
Davis 5,070 0 5,070
Irvine 2,068 0 2,068
Los Angeles 0 4,090 4,090
Riverside 373 600 973
San Diego 44 1,478 1,522
San Francisco 903 0 903
Santa Barbara 119 2,570 2,689
Santa Cruz 186 340 526
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 859 859
Other-Network UC n/a 2,491 2,491
_______ ______ _____
8,915 15,613 24,528
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 0.7
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) 6:57
Average session length (minutes:seconds) 15:16
Longest session recorded (minutes:seconds) 634:21
Average number of searches completed per session 4.3
Retrievals per search - median 3.0
Retrievals per search - average 523.8
Retrievals per search - standard deviation 5170.0
Percent of searches completed with 0 results 32.3%
Percent of searches entered that are long 3.3%
Percent of long searches completed
(includes partial results) 80.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 2,635 35.0%
DISPLAY (excluding automatic displays) 2,750 36.5%
BROWSE 2 0.0%
SELECT 0 0.0%
HELP 43 0.6%
EXPLAIN 56 0.7%
SET/RESET 283 3.8%
SHOW 15 0.2%
ADD ON (AND, OR, AND NOT) 267 3.5%
LOGON or LOGOFF 912 12.1%
COMMENT 0 0.0%
SAVE 351 4.7%
USE 2 0.0%
OTHER 215 2.9%
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 1,099 29.3% 231 21.0% 15 66.1 191.3
TITLE WORD 313 8.4% 89 28.4% 8 49.6 106.8
EXACT TITLE 26 0.7% 13 50.0% 2 10.5 19.8
JOURNAL 50 1.3% 12 24.0% 103 1532.0 2730.5
EXACT JOURNAL 44 1.2% 10 22.7% 439 1606.0 3527.4
SUBJECT 138 3.7% 81 58.7% 126 5739.1 11694.1
EXACT SUBJECT 499 13.3% 352 70.5% 2 194.1 1381.3
KEYWORD 530 14.1% 126 23.8% 38 1294.1 6323.6
FORM/PUB TYPE 4 0.1% 0 0.0% 27 163.0 289.1
DATE 671 17.9% 392 58.4% 3 17.8 46.4
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. 1 0.0% 0 0.0% 13,382 13382.0 0.0
CONFERENCE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 14 0.4% 2 14.3% 147 1822.8 4621.1
ISSN 1 0.0% 1 100% 0 0.0 0.0
ISBN 0 0.0% 0 0.0% 0 0.0 0.0
ID NUMBER 11 0.3% 0 0.0% 1 1.0 0.0
PERIODICAL 28 0.7% 8 28.6% 5 15.4 26.4
EXACT PE 15 0.4% 1 6.7% 2 8.1 9.4
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 302 8.1% 172 57.0% 1 217.8 2072.0
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 801 30.6% 438 54.7% 3 89.9 878.3
Single 1,813 69.4% 428 23.6% 26 766.2 4429.2
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% 1 50.0% 1 1.0 0.0
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 2.5%
SHORT 83.4%
LONG 0.9%
TAGS 2.4%
FIELDS 7.2%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 2.0%
COMMENTS 0.0%
Other 1.7%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 11.3%
Ten most frequent errors:
1. DISPLAY command - no FIND results 37.6%
2. NS command - no next screen 21.0%
3. First word of command is invalid 18.7%
4. FIND command with invalid index name 6.1%
5. PS command - no previous screen 3.2%
6. DISPLAY command contains invalid word 2.3%
7. Add-on search, no index name after verb 1.1%
8. Valid command at an inappropriate time 1.0%
9. Search term missing from search command 1.0%
10. 994 0.7%
11. All others 7.2%
Ten most frequent EXPLAIN requests:
1. LOCATE (INS/PSY DBS) 26.8%
2. GUIDE 17.9%
3. FIND (PSY DB) 12.5%
4. INDEXES (PSY DB) 7.1%
5. Unrecognized term 7.1%
6. COMMANDS (ABI/PSY DBS) 5.4%
7. DISPLAY (INS/PSY DBS) 3.6%
8. ADDON SEARCH 3.6%
9. MAIL 1.8%
10. LOCATIONS 1.8%
11. All others 12.5%
Ten most frequent HELP situations:
1. Help requested from SET DB command 27.3%
2. DISPLAY command-first of >1 screen 12.1%
3. First word of command is invalid 11.1%
4. FIND command with zero results 10.1%
5. FIND command retrieves >1 book 8.1%
6. DISPLAY command - middle of >1 screen 6.1%
7. FIND command with invalid index name 5.1%
8. PS command - no previous screen 3.0%
9. DISPLAY command-complete in one screen 3.0%
10. Multi-index search with zero results 3.0%
11. All others 11.1%
Ten most frequent SHOW requests:
1. HISTORY 76.9%
2. SEARCH 15.4%
3. GLOSSARY 7.7%
11. All others 0.0%
PSYmm/dd psy MELVYL PSYCINFO DATABASE TELNET STATISTICS (weekly)