MELVYL PSYCINFO DATABASE TELNET STATISTICS
Time period: 07/07/01 through 07/13/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 31 138 169
Davis 134 1 135
Irvine 58 0 58
Los Angeles 0 133 133
Riverside 12 19 31
San Diego 4 96 100
San Francisco 53 0 53
Santa Barbara 1 54 55
Santa Cruz 26 28 54
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 40 40
Other-Network UC n/a 188 188
_______ ______ _____
319 697 1,016
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 11 38 357
2-4 a.m. 27 296 1,853
4-6 a.m. 26 283 1,415
6-8 a.m. 30 90 739
8-10 a.m. 107 329 2,751
10-12 a.m. 208 685 7,055
12-2 p.m. 161 610 5,945
2-4 p.m. 183 771 7,727
4-6 p.m. 140 579 6,522
6-8 p.m. 59 234 2,704
8-10 p.m. 29 71 1,946
10-12 p.m. 35 126 1,004
__________ __________ __________ _________________
Total: 1,016 4,112 40,018
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 103 607 710
Davis 827 1 828
Irvine 135 0 135
Los Angeles 0 570 570
Riverside 105 157 262
San Diego 67 294 361
San Francisco 241 0 241
Santa Barbara 1 169 170
Santa Cruz 40 75 115
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 145 145
Other-Network UC n/a 575 575
_______ ______ _____
1,519 2,593 4,112
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 1,739 4,926 6,665
Davis 6,354 2 6,356
Irvine 1,393 0 1,393
Los Angeles 0 6,701 6,701
Riverside 1,403 1,022 2,425
San Diego 445 5,468 5,913
San Francisco 1,859 0 1,859
Santa Barbara 1 1,736 1,737
Santa Cruz 617 981 1,598
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 1,230 1,230
Other-Network UC n/a 4,141 4,141
_______ ______ _____
13,811 26,207 40,018
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 0.8
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) 7:31
Average session length (minutes:seconds) 13:19
Longest session recorded (minutes:seconds) 405:01
Average number of searches completed per session 4.0
Retrievals per search - median 5.0
Retrievals per search - average 818.4
Retrievals per search - standard deviation 9769.5
Percent of searches completed with 0 results 25.4%
Percent of searches entered that are long 2.6%
Percent of long searches completed
(includes partial results) 76.9%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 3,683 29.8%
DISPLAY (excluding automatic displays) 4,969 40.1%
BROWSE 5 0.0%
SELECT 0 0.0%
HELP 78 0.6%
EXPLAIN 85 0.7%
SET/RESET 377 3.0%
SHOW 28 0.2%
ADD ON (AND, OR, AND NOT) 429 3.5%
LOGON or LOGOFF 1,430 11.6%
COMMENT 0 0.0%
SAVE 954 7.7%
USE 0 0.0%
OTHER 346 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 1,622 33.2% 303 18.7% 13 67.1 203.5
TITLE WORD 411 8.4% 122 29.7% 7 178.6 1200.2
EXACT TITLE 30 0.6% 11 36.7% 3 61.3 157.6
JOURNAL 92 1.9% 28 30.4% 398 1687.1 5201.2
EXACT JOURNAL 62 1.3% 11 17.7% 873 1764.8 3035.0
SUBJECT 113 2.3% 60 53.1% 1,990 14477.6 22321.9
EXACT SUBJECT 503 10.3% 323 64.2% 2 402.2 2111.8
KEYWORD 946 19.3% 149 15.8% 37 1721.3 15020.4
FORM/PUB TYPE 19 0.4% 2 10.5% 61 219.9 354.2
DATE 722 14.8% 362 50.1% 3 24.3 137.8
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. 1 0.0% 1 100% 0 0.0 0.0
CONFERENCE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 4 0.1% 0 0.0% 176 1627.8 3019.6
ISSN 0 0.0% 0 0.0% 0 0.0 0.0
ISBN 1 0.0% 1 100% 0 0.0 0.0
ID NUMBER 14 0.3% 0 0.0% 1 1.0 0.0
PERIODICAL 44 0.9% 16 36.4% 3 54.9 237.4
EXACT PE 10 0.2% 3 30.0% 2 3.4 3.5
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 298 6.1% 139 46.6% 2 16.2 33.7
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 908 24.8% 420 46.3% 3 42.7 311.2
Single 2,748 75.2% 531 19.3% 26 1141.0 9960.5
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 5 100% 2 40.0% 1 5.3 7.5
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 1.9%
SHORT 89.0%
LONG 0.9%
TAGS 1.2%
FIELDS 3.8%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 0.9%
COMMENTS 0.0%
Other 2.2%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 10.0%
Ten most frequent errors:
1. NS command - no next screen 26.4%
2. DISPLAY command - no FIND results 24.2%
3. First word of command is invalid 20.7%
4. FIND command with invalid index name 5.3%
5. PS command - no previous screen 4.2%
6. DISPLAY command contains invalid word 3.2%
7. Search term missing from search command 2.1%
8. Add-on search, no index name after verb 1.8%
9. Valid command at an inappropriate time 1.2%
10. DISPLAY command-record numbers too large 0.9%
11. All others 10.1%
Ten most frequent EXPLAIN requests:
1. LOCATE (INS/PSY DBS) 20.0%
2. GUIDE 14.1%
3. COMMANDS (ABI/PSY DBS) 9.4%
4. FIND (PSY DB) 9.4%
5. INDEXES (PSY DB) 7.1%
6. DATABASES 5.9%
7. SEARCH (PSY DB) 3.5%
8. Unrecognized term 3.5%
9. 1060 3.5%
10. ADDON SEARCH 3.5%
11. All others 20.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 18.4%
2. DISPLAY command-first of >1 screen 12.9%
3. First word of command is invalid 11.7%
4. PS command - no previous screen 7.4%
5. FIND command with zero results 6.7%
6. FIND command retrieves >1 book 4.9%
7. FIND command with invalid index name 4.3%
8. DISPLAY command - last of >1 screen 3.7%
9. SET DB command entered w/o modifier 2.5%
10. F/BR command with invalid search term 2.5%
11. All others 25.2%
Ten most frequent SHOW requests:
1. HISTORY 57.1%
2. PSYCINFO NEWS 14.3%
3. SEARCH 14.3%
4. MAIL STATUS 10.7%
5. MAIL SETTINGS 3.6%
11. All others 0.0%
PSYmm/dd psy MELVYL PSYCINFO DATABASE TELNET STATISTICS (weekly)