MELVYL PSYCINFO DATABASE TELNET STATISTICS
Time period: 06/01/02 through 06/07/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 14 81 95
Davis 88 3 91
Irvine 27 0 27
Los Angeles 3 74 77
Riverside 12 34 46
San Diego 11 43 54
San Francisco 23 0 23
Santa Barbara 3 37 40
Santa Cruz 0 13 13
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 18 18
Other-Network UC n/a 99 99
_______ ______ _____
181 402 583
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 8 52 344
2-4 a.m. 17 241 1,313
4-6 a.m. 4 16 29
6-8 a.m. 19 99 682
8-10 a.m. 60 213 1,798
10-12 a.m. 111 521 4,023
12-2 p.m. 88 407 4,955
2-4 p.m. 125 503 4,327
4-6 p.m. 85 391 4,974
6-8 p.m. 30 207 1,788
8-10 p.m. 23 146 838
10-12 p.m. 13 154 388
__________ __________ __________ _________________
Total: 583 2,950 25,459
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 61 312 373
Davis 499 17 516
Irvine 71 0 71
Los Angeles 32 477 509
Riverside 56 131 187
San Diego 24 148 172
San Francisco 86 0 86
Santa Barbara 10 223 233
Santa Cruz 0 91 91
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 52 52
Other-Network UC n/a 660 660
_______ ______ _____
839 2,111 2,950
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 850 2,926 3,776
Davis 3,482 122 3,604
Irvine 684 0 684
Los Angeles 335 3,986 4,321
Riverside 711 1,351 2,062
San Diego 60 1,499 1,559
San Francisco 267 0 267
Santa Barbara 8 4,415 4,423
Santa Cruz 0 881 881
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 580 580
Other-Network UC n/a 3,302 3,302
_______ ______ _____
6,397 19,062 25,459
1.4 Response time
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Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.8
Standard deviation in seconds 3.3
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) 9:05
Average session length (minutes:seconds) 14:54
Longest session recorded (minutes:seconds) 312:02
Average number of searches completed per session 5.0
Retrievals per search - median 11.0
Retrievals per search - average 925.2
Retrievals per search - standard deviation 9657.5
Percent of searches completed with 0 results 20.9%
Percent of searches entered that are long 2.0%
Percent of long searches completed
(includes partial results) 58.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 2,621 31.0%
DISPLAY (excluding automatic displays) 3,592 42.5%
BROWSE 4 0.0%
SELECT 0 0.0%
HELP 43 0.5%
EXPLAIN 65 0.8%
SET/RESET 136 1.6%
SHOW 42 0.5%
ADD ON (AND, OR, AND NOT) 329 3.9%
LOGON or LOGOFF 948 11.2%
COMMENT 0 0.0%
SAVE 463 5.5%
USE 0 0.0%
OTHER 208 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 1,033 30.7% 194 18.8% 17 52.3 136.6
TITLE WORD 226 6.7% 63 27.9% 9 114.4 589.2
EXACT TITLE 8 0.2% 4 50.0% 1 1.0 0.0
JOURNAL 31 0.9% 8 25.8% 1,066 1877.3 2139.2
EXACT JOURNAL 36 1.1% 13 36.1% 6,637 17303.5 47358.1
SUBJECT 205 6.1% 60 29.3% 42 2325.7 6307.6
EXACT SUBJECT 214 6.4% 145 67.8% 2 122.7 535.1
KEYWORD 808 24.0% 119 14.7% 42 2460.9 17321.3
FORM/PUB TYPE 20 0.6% 1 5.0% 178 1927.3 5726.7
DATE 391 11.6% 168 43.0% 6 652.7 4558.4
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. 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 4 0.1% 0 0.0% 29 35.3 29.0
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 7 0.2% 0 0.0% 1 1.0 0.0
PERIODICAL 67 2.0% 9 13.4% 4 45.7 270.9
EXACT PE 27 0.8% 3 11.1% 2 3.4 3.3
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 285 8.5% 70 24.6% 15 229.3 1498.2
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 637 24.6% 208 32.7% 8 470.5 3515.5
Single 1,957 75.4% 372 19.0% 30 1498.0 12938.0
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 4 100% 2 50.0% 3 2.5 2.1
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 1.6%
SHORT 88.4%
LONG 0.7%
TAGS 0.9%
FIELDS 3.2%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 3.8%
COMMENTS 0.0%
Other 1.4%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 10.3%
Ten most frequent errors:
1. NS command - no next screen 33.6%
2. First word of command is invalid 22.5%
3. DISPLAY command - no FIND results 16.5%
4. FIND command with invalid index name 7.6%
5. DISPLAY command contains invalid word 2.1%
6. PS command - no previous screen 2.0%
7. DISPLAY command-record numbers too large 1.6%
8. 745 1.5%
9. Valid command at an inappropriate time 1.1%
10. Search term missing from search command 1.1%
11. All others 10.3%
Ten most frequent EXPLAIN requests:
1. MAIL 13.8%
2. LOCATE (INS/PSY DBS) 13.8%
3. GUIDE 12.3%
4. PUBLICATION TYPE (PSY DB) 10.8%
5. FIND (PSY DB) 7.7%
6. INDEXES (PSY DB) 6.2%
7. SUBJECT INDEX (PSY DB) 3.1%
8. P042 3.1%
9. FORMS (PSY DB) 3.1%
10. P148 3.1%
11. All others 23.1%
Ten most frequent HELP situations:
1. Help requested from SET DB command 18.5%
2. Help requested from SHOW SEARCH 12.0%
3. FIND command with invalid index name 11.1%
4. First word of command is invalid 7.4%
5. DISPLAY command-first of >1 screen 6.5%
6. DISPLAY command - middle of >1 screen 6.5%
7. FIND command with zero results 5.6%
8. FIND command retrieves >1 book 4.6%
9. MAIL command entered w/o email address 4.6%
10. DISPLAY command-complete in one screen 2.8%
11. All others 20.4%
Ten most frequent SHOW requests:
1. HISTORY 48.3%
2. SEARCH 17.2%
3. PSYCINFO NEWS 13.8%
4. SETTINGS (INS/PSY DBS) 6.9%
5. PUBLICATION TYPES (PSY DB) 6.9%
6. MAIL STATUS 6.9%
11. All others 0.0%
PSYmm/dd psy MELVYL PSYCINFO DATABASE TELNET STATISTICS (weekly)