MELVYL PSYCINFO DATABASE TELNET STATISTICS
Time period: 09/08/01 through 09/14/01
1.0 SUMMARY STATISTICS
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1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 19 131 150
Davis 127 3 130
Irvine 72 0 72
Los Angeles 4 119 123
Riverside 5 22 27
San Diego 10 92 102
San Francisco 51 0 51
Santa Barbara 2 22 24
Santa Cruz 17 26 43
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 23 23
Other-Network UC n/a 107 107
_______ ______ _____
307 545 852
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 6 16 182
2-4 a.m. 9 88 598
4-6 a.m. 4 72 531
6-8 a.m. 11 27 136
8-10 a.m. 94 349 3,063
10-12 a.m. 190 716 5,456
12-2 p.m. 149 533 5,025
2-4 p.m. 190 724 8,351
4-6 p.m. 107 349 4,745
6-8 p.m. 33 134 1,570
8-10 p.m. 31 166 1,402
10-12 p.m. 28 80 773
__________ __________ __________ _________________
Total: 852 3,254 31,832
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 43 498 541
Davis 654 10 664
Irvine 337 0 337
Los Angeles 10 593 603
Riverside 13 89 102
San Diego 46 260 306
San Francisco 152 0 152
Santa Barbara 3 84 87
Santa Cruz 29 68 97
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 56 56
Other-Network UC n/a 309 309
_______ ______ _____
1,287 1,967 3,254
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 92 3,842 3,934
Davis 6,324 68 6,392
Irvine 4,237 0 4,237
Los Angeles 76 5,103 5,179
Riverside 24 391 415
San Diego 210 2,632 2,842
San Francisco 1,960 0 1,960
Santa Barbara 8 1,688 1,696
Santa Cruz 579 1,365 1,944
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 267 267
Other-Network UC n/a 2,966 2,966
_______ ______ _____
13,510 18,322 31,832
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 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
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Median session length (minutes:seconds) 6:49
Average session length (minutes:seconds) 14:12
Longest session recorded (minutes:seconds) 165:35
Average number of searches completed per session 3.8
Retrievals per search - median 8.0
Retrievals per search - average 845.5
Retrievals per search - standard deviation 7635.1
Percent of searches completed with 0 results 25.9%
Percent of searches entered that are long 2.6%
Percent of long searches completed
(includes partial results) 67.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 2,934 31.6%
DISPLAY (excluding automatic displays) 3,634 39.1%
BROWSE 2 0.0%
SELECT 0 0.0%
HELP 70 0.8%
EXPLAIN 79 0.8%
SET/RESET 292 3.1%
SHOW 31 0.3%
ADD ON (AND, OR, AND NOT) 320 3.4%
LOGON or LOGOFF 1,172 12.6%
COMMENT 0 0.0%
SAVE 527 5.7%
USE 0 0.0%
OTHER 236 2.5%
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 1,331 37.6% 292 21.9% 16 60.8 167.2
TITLE WORD 368 10.4% 137 37.2% 16 135.9 466.4
EXACT TITLE 32 0.9% 12 37.5% 1 32.2 70.9
JOURNAL 50 1.4% 17 34.0% 74 4478.7 15176.3
EXACT JOURNAL 53 1.5% 13 24.5% 464 2032.5 3806.7
SUBJECT 279 7.9% 121 43.4% 720 7254.3 19037.9
EXACT SUBJECT 153 4.3% 81 52.9% 7 779.2 3921.2
KEYWORD 771 21.8% 175 22.7% 39 1175.9 5876.3
FORM/PUB TYPE 11 0.3% 1 9.1% 32 3471.4 10729.5
DATE 309 8.7% 105 34.0% 4 14.0 27.4
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. 7 0.2% 0 0.0% 2 95.9 248.8
CONFERENCE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 3 0.1% 0 0.0% 736 2037.0 2683.5
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 4 0.1% 0 0.0% 1 1.0 0.0
PERIODICAL 60 1.7% 11 18.3% 3 82.4 286.7
EXACT PE 6 0.2% 1 16.7% 4 21.4 32.1
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 100 2.8% 34 34.0% 16 698.2 2630.0
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 528 18.2% 192 36.4% 5 76.5 472.8
Single 2,377 81.8% 581 24.4% 35 1263.5 7283.5
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% 2 2.0 0.0
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 1.5%
SHORT 88.2%
LONG 1.0%
TAGS 0.5%
FIELDS 4.4%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 1.9%
COMMENTS 0.0%
Other 2.5%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 9.3%
Ten most frequent errors:
1. NS command - no next screen 32.7%
2. First word of command is invalid 25.1%
3. DISPLAY command - no FIND results 9.1%
4. FIND command with invalid index name 8.3%
5. PS command - no previous screen 4.8%
6. DISPLAY command contains invalid word 3.6%
7. Valid command at an inappropriate time 3.5%
8. Search term missing from search command 1.6%
9. DISPLAY command-record numbers too large 1.3%
10. NS of SHOW/EXP command-no next screen 1.3%
11. All others 8.8%
Ten most frequent EXPLAIN requests:
1. LOCATE (INS/PSY DBS) 25.3%
2. GUIDE 20.3%
3. COMMANDS (ABI/PSY DBS) 7.6%
4. Unrecognized term 6.3%
5. SEARCH (PSY DB) 5.1%
6. INDEXES (PSY DB) 5.1%
7. MAGS TEXT 3.8%
8. DATABASES 3.8%
9. P034 2.5%
10. DATE (PSY DB) 2.5%
11. All others 17.7%
Ten most frequent HELP situations:
1. Help requested from SET DB command 27.5%
2. First word of command is invalid 14.8%
3. FIND command with invalid index name 14.1%
4. FIND command with zero results 6.7%
5. DISPLAY command-first of >1 screen 6.7%
6. FIND command retrieves >1 book 4.7%
7. DISPLAY command - middle of >1 screen 4.7%
8. DISPLAY command-complete in one screen 4.0%
9. NS command - no next screen 2.0%
10. FIND command retrieves 1 book 2.0%
11. All others 12.8%
Ten most frequent SHOW requests:
1. HISTORY 50.0%
2. SEARCH 26.7%
3. MAIL STATUS 13.3%
4. GLOSSARY 3.3%
5. 0422 3.3%
6. SYSTEM NEWS 3.3%
11. All others 0.0%
PSYmm/dd psy MELVYL PSYCINFO DATABASE TELNET STATISTICS (weekly)