MELVYL PSYCINFO DATABASE TELNET STATISTICS
Time period: 04/07/01 through 04/13/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 63 183 246
Davis 174 0 174
Irvine 49 0 49
Los Angeles 3 162 165
Riverside 10 49 59
San Diego 12 124 136
San Francisco 72 0 72
Santa Barbara 2 50 52
Santa Cruz 6 47 53
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 4 39 43
Other-Network UC n/a 156 156
_______ ______ _____
395 810 1,205
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 14 27 383
2-4 a.m. 10 39 385
4-6 a.m. 82 581 2,601
6-8 a.m. 30 101 808
8-10 a.m. 115 428 3,572
10-12 a.m. 209 673 5,532
12-2 p.m. 199 878 7,039
2-4 p.m. 241 905 11,917
4-6 p.m. 147 616 6,298
6-8 p.m. 72 374 3,963
8-10 p.m. 52 284 2,074
10-12 p.m. 34 123 1,021
__________ __________ __________ _________________
Total: 1,205 5,029 45,593
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 275 728 1,003
Davis 827 0 827
Irvine 125 0 125
Los Angeles 12 685 697
Riverside 26 184 210
San Diego 75 441 516
San Francisco 327 0 327
Santa Barbara 2 314 316
Santa Cruz 28 311 339
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 10 105 115
Other-Network UC n/a 554 554
_______ ______ _____
1,707 3,322 5,029
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 3,456 6,758 10,214
Davis 4,396 0 4,396
Irvine 1,361 0 1,361
Los Angeles 164 7,492 7,656
Riverside 466 1,251 1,717
San Diego 356 3,014 3,370
San Francisco 7,311 0 7,311
Santa Barbara 2 2,771 2,773
Santa Cruz 88 1,594 1,682
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 23 807 830
Other-Network UC n/a 4,283 4,283
_______ ______ _____
17,623 27,970 45,593
1.4 Response time
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Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 1.2
Standard deviation in seconds 7.7
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) 6:55
Average session length (minutes:seconds) 13:38
Longest session recorded (minutes:seconds) 490:53
Average number of searches completed per session 4.1
Retrievals per search - median 5.0
Retrievals per search - average 625.3
Retrievals per search - standard deviation 6863.4
Percent of searches completed with 0 results 25.7%
Percent of searches entered that are long 3.4%
Percent of long searches completed
(includes partial results) 67.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 4,507 31.1%
DISPLAY (excluding automatic displays) 5,824 40.2%
BROWSE 20 0.1%
SELECT 2 0.0%
HELP 141 1.0%
EXPLAIN 157 1.1%
SET/RESET 442 3.1%
SHOW 32 0.2%
ADD ON (AND, OR, AND NOT) 522 3.6%
LOGON or LOGOFF 1,802 12.4%
COMMENT 0 0.0%
SAVE 646 4.5%
USE 1 0.0%
OTHER 405 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 1,853 30.9% 308 16.6% 12 50.5 130.3
TITLE WORD 452 7.5% 147 32.5% 10 214.0 1523.2
EXACT TITLE 74 1.2% 29 39.2% 2 13.8 35.7
JOURNAL 183 3.0% 50 27.3% 653 7133.1 32733.4
EXACT JOURNAL 129 2.1% 27 20.9% 167 1147.8 2004.4
SUBJECT 270 4.5% 148 54.8% 373 3340.1 7715.3
EXACT SUBJECT 506 8.4% 341 67.4% 3 141.6 885.9
KEYWORD 1,221 20.3% 226 18.5% 29 1451.7 8730.0
FORM/PUB TYPE 7 0.1% 0 0.0% 11 30.6 40.9
DATE 815 13.6% 372 45.6% 4 1412.4 11562.1
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. 2 0.0% 2 100% 0 0.0 0.0
CONFERENCE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 5 0.1% 0 0.0% 11 16.8 22.3
ISSN 0 0.0% 0 0.0% 0 0.0 0.0
ISBN 0 0.0% 0 0.0% 0 0.0 0.0
ID NUMBER 59 1.0% 0 0.0% 1 1.0 0.0
PERIODICAL 63 1.0% 14 22.2% 4 26.7 52.5
EXACT PE 15 0.2% 2 13.3% 2 6.5 8.4
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 350 5.8% 167 47.7% 2 79.7 437.2
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 1,174 26.3% 483 41.1% 5 951.5 9283.8
Single 3,288 73.7% 687 20.9% 25 924.9 8171.9
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 20 100% 12 60.0% 2 3.4 4.4
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 2.0%
SHORT 87.7%
LONG 0.6%
TAGS 1.7%
FIELDS 4.0%
BROWSE REVIEW 0.1%
BROWSE LONG 0.1%
PERIODICALS 2.1%
COMMENTS 0.0%
Other 1.7%
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 26.2%
2. DISPLAY command - no FIND results 22.2%
3. First word of command is invalid 21.8%
4. FIND command with invalid index name 7.7%
5. DISPLAY command contains invalid word 4.1%
6. PS command - no previous screen 3.9%
7. Valid command at an inappropriate time 2.3%
8. Search term missing from search command 1.4%
9. NS of SHOW/EXP command-no next screen 1.1%
10. Command contains escape or arrow key 0.9%
11. All others 8.4%
Ten most frequent EXPLAIN requests:
1. LOCATE (INS/PSY DBS) 21.0%
2. GUIDE 19.7%
3. FIND (PSY DB) 10.2%
4. COMMANDS (ABI/PSY DBS) 8.3%
5. Unrecognized term 5.7%
6. INDEXES (PSY DB) 4.5%
7. DISPLAY (INS/PSY DBS) 3.2%
8. MAIL 2.5%
9. LOCATIONS 1.9%
10. SEARCH (PSY DB) 1.9%
11. All others 21.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 22.5%
2. First word of command is invalid 15.8%
3. DISPLAY command-first of >1 screen 9.7%
4. FIND command with invalid index name 7.0%
5. FIND command with zero results 6.7%
6. DISPLAY command-complete in one screen 6.7%
7. 1185 4.7%
8. DISPLAY command - last of >1 screen 3.4%
9. NS command - no next screen 3.0%
10. 3 HELP commands issued from same code 2.0%
11. All others 18.5%
Ten most frequent SHOW requests:
1. HISTORY 61.3%
2. SEARCH 19.4%
3. GLOSSARY 6.5%
4. SETTINGS (INS/PSY DBS) 3.2%
5. PSYCINFO NEWS 3.2%
6. FIND DISPLAY 3.2%
7. DATABASES 3.2%
11. All others 0.0%
PSYmm/dd psy MELVYL PSYCINFO DATABASE TELNET STATISTICS (weekly)