MELVYL PSYCINFO DATABASE TELNET STATISTICS
Time period: 12/22/01 through 12/28/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 4 17 21
Davis 19 0 19
Irvine 4 0 4
Los Angeles 0 29 29
Riverside 2 1 3
San Diego 7 38 45
San Francisco 3 0 3
Santa Barbara 0 35 35
Santa Cruz 0 4 4
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 1 1
Other-Network UC n/a 40 40
_______ ______ _____
39 165 204
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 1 9 79
2-4 a.m. 10 248 729
4-6 a.m. 5 16 152
6-8 a.m. 11 95 453
8-10 a.m. 24 50 434
10-12 a.m. 35 107 514
12-2 p.m. 33 142 792
2-4 p.m. 33 119 948
4-6 p.m. 16 57 590
6-8 p.m. 22 58 760
8-10 p.m. 5 5 60
10-12 p.m. 9 19 148
__________ __________ __________ _________________
Total: 204 925 5,659
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 16 49 65
Davis 283 0 283
Irvine 6 0 6
Los Angeles 0 74 74
Riverside 4 2 6
San Diego 35 138 173
San Francisco 3 0 3
Santa Barbara 0 157 157
Santa Cruz 0 11 11
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 1 1
Other-Network UC n/a 146 146
_______ ______ _____
347 578 925
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 98 285 383
Davis 1,126 0 1,126
Irvine 206 0 206
Los Angeles 0 470 470
Riverside 32 8 40
San Diego 273 660 933
San Francisco 120 0 120
Santa Barbara 0 1,275 1,275
Santa Cruz 0 114 114
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 5 5
Other-Network UC n/a 987 987
_______ ______ _____
1,855 3,804 5,659
1.4 Response time
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Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.7
Standard deviation in seconds 1.6
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) 5:29
Average session length (minutes:seconds) 16:41
Longest session recorded (minutes:seconds) 869:44
Average number of searches completed per session 4.5
Retrievals per search - median 2.0
Retrievals per search - average 196.7
Retrievals per search - standard deviation 1570.6
Percent of searches completed with 0 results 33.7%
Percent of searches entered that are long 3.7%
Percent of long searches completed
(includes partial results) 64.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 828 38.9%
DISPLAY (excluding automatic displays) 751 35.3%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 2 0.1%
EXPLAIN 3 0.1%
SET/RESET 90 4.2%
SHOW 2 0.1%
ADD ON (AND, OR, AND NOT) 97 4.6%
LOGON or LOGOFF 270 12.7%
COMMENT 0 0.0%
SAVE 17 0.8%
USE 0 0.0%
OTHER 66 3.1%
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 396 30.1% 79 19.9% 12 63.9 220.5
TITLE WORD 70 5.3% 27 38.6% 2 29.2 105.8
EXACT TITLE 2 0.2% 0 0.0% 41 40.5 31.8
JOURNAL 15 1.1% 3 20.0% 177 2742.5 4629.2
EXACT JOURNAL 2 0.2% 1 50.0% 1 1.0 0.0
SUBJECT 11 0.8% 2 18.2% 898 5770.8 12753.5
EXACT SUBJECT 245 18.6% 170 69.4% 1 8.0 16.9
KEYWORD 135 10.3% 19 14.1% 25 569.3 1607.4
FORM/PUB TYPE 4 0.3% 0 0.0% 2 2.0 1.2
DATE 274 20.8% 174 63.5% 1 7.2 14.8
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. 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 0 0.0% 0 0.0% 0 0.0 0.0
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 3 0.2% 0 0.0% 1 1.0 0.0
PERIODICAL 18 1.4% 2 11.1% 12 140.6 446.1
EXACT PE 0 0.0% 0 0.0% 0 0.0 0.0
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 141 10.7% 80 56.7% 1 8.6 17.9
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 346 42.3% 193 55.8% 2 14.0 45.4
Single 471 57.6% 92 19.5% 20 453.0 2414.5
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 0 0.0% 0 0.0% 0.0 0.0 0.0
EXACT SUBJECT 0 0.0% 0 0.0% 0.0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 2.4%
SHORT 76.7%
LONG 0.2%
TAGS 5.8%
FIELDS 10.5%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 3.3%
COMMENTS 0.0%
Other 1.1%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 12.0%
Ten most frequent errors:
1. DISPLAY command - no FIND results 58.8%
2. NS command - no next screen 15.8%
3. First word of command is invalid 9.3%
4. FIND command with invalid index name 4.5%
5. DISPLAY command contains invalid word 2.4%
6. Add-on search, no index name after verb 2.4%
7. PS command - no previous screen 2.1%
8. Valid command at an inappropriate time 0.7%
9. Add-on search with no previous result 0.7%
10. 1232 0.7%
11. All others 2.7%
Ten most frequent EXPLAIN requests:
1. LOCATE (INS/PSY DBS) 66.7%
2. ADDON SEARCH 33.3%
11. All others 0.0%
Ten most frequent HELP situations:
1. First word of command is invalid 20.0%
2. FIND command retrieves >1 book 20.0%
3. DISPLAY command-complete in one screen 20.0%
4. DISPLAY command-first of >1 screen 20.0%
5. Help requested from SET DB command 20.0%
11. All others 0.0%
Ten most frequent SHOW requests:
1. HISTORY 100%
11. All others 0.0%
PSYmm/dd psy MELVYL PSYCINFO DATABASE TELNET STATISTICS (weekly)