MELVYL PSYCINFO DATABASE TELNET STATISTICS
Time period: 05/25/02 through 05/31/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 6 86 92
Davis 108 1 109
Irvine 32 0 32
Los Angeles 1 60 61
Riverside 0 25 25
San Diego 5 57 62
San Francisco 8 0 8
Santa Barbara 10 38 48
Santa Cruz 1 21 22
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 6 6
Other-Network UC n/a 79 79
_______ ______ _____
171 373 544
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 8 57 391
2-4 a.m. 19 249 338
4-6 a.m. 11 13 55
6-8 a.m. 7 22 134
8-10 a.m. 58 194 1,513
10-12 a.m. 98 362 3,589
12-2 p.m. 88 333 2,987
2-4 p.m. 97 348 3,208
4-6 p.m. 75 335 2,931
6-8 p.m. 36 190 1,517
8-10 p.m. 37 99 1,091
10-12 p.m. 10 45 360
__________ __________ __________ _________________
Total: 544 2,247 18,114
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 16 406 422
Davis 565 0 565
Irvine 136 0 136
Los Angeles 18 192 210
Riverside 0 86 86
San Diego 6 190 196
San Francisco 40 0 40
Santa Barbara 25 131 156
Santa Cruz 1 131 132
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 22 22
Other-Network UC n/a 282 282
_______ ______ _____
807 1,440 2,247
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 108 3,194 3,302
Davis 2,608 0 2,608
Irvine 1,062 0 1,062
Los Angeles 314 2,083 2,397
Riverside 0 534 534
San Diego 39 1,791 1,830
San Francisco 451 0 451
Santa Barbara 98 2,918 3,016
Santa Cruz 0 845 845
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 86 86
Other-Network UC n/a 1,983 1,983
_______ ______ _____
4,680 13,434 18,114
1.4 Response time
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Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.6
Standard deviation in seconds 1.2
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) 7:27
Average session length (minutes:seconds) 13:03
Longest session recorded (minutes:seconds) 377:57
Average number of searches completed per session 4.1
Retrievals per search - median 5.0
Retrievals per search - average 786.5
Retrievals per search - standard deviation 12445
Percent of searches completed with 0 results 24.3%
Percent of searches entered that are long 3.2%
Percent of long searches completed
(includes partial results) 77.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 2,008 29.7%
DISPLAY (excluding automatic displays) 2,988 44.3%
BROWSE 1 0.0%
SELECT 0 0.0%
HELP 35 0.5%
EXPLAIN 37 0.5%
SET/RESET 140 2.1%
SHOW 27 0.4%
ADD ON (AND, OR, AND NOT) 239 3.5%
LOGON or LOGOFF 862 12.8%
COMMENT 0 0.0%
SAVE 240 3.6%
USE 0 0.0%
OTHER 175 2.6%
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 1,019 38.6% 194 19.0% 12 45.3 121.4
TITLE WORD 183 6.9% 53 29.0% 5 91.4 546.9
EXACT TITLE 18 0.7% 9 50.0% 2 6.9 12.2
JOURNAL 30 1.1% 5 16.7% 98 1489.4 4120.2
EXACT JOURNAL 37 1.4% 5 13.5% 58 934.1 2902.7
SUBJECT 111 4.2% 49 44.1% 79 3009.7 9654.9
EXACT SUBJECT 210 8.0% 144 68.6% 2 1.9 1.0
KEYWORD 529 20.0% 97 18.3% 25 3095.0 27670.8
FORM/PUB TYPE 0 0.0% 0 0.0% 0 0.0 0.0
DATE 308 11.7% 158 51.3% 2 6.3 21.5
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 1 0.0% 0 0.0% 681 681.0 0.0
ISBN 0 0.0% 0 0.0% 0 0.0 0.0
ID NUMBER 5 0.2% 0 0.0% 1 1.0 0.0
PERIODICAL 52 2.0% 9 17.3% 12 81.5 222.5
EXACT PE 18 0.7% 3 16.7% 3 6.3 8.0
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 120 4.5% 60 50.0% 2 2.0 1.0
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 512 25.7% 215 42.0% 4 29.9 134.4
Single 1,481 74.3% 289 19.5% 20 1365.3 16870.3
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 1 100% 0 0.0% 9 9.0 0.0
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 1.2%
SHORT 89.7%
LONG 0.5%
TAGS 1.1%
FIELDS 2.7%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 3.5%
COMMENTS 0.0%
Other 1.2%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 8.7%
Ten most frequent errors:
1. NS command - no next screen 30.1%
2. DISPLAY command - no FIND results 23.6%
3. First word of command is invalid 18.7%
4. FIND command with invalid index name 7.3%
5. DISPLAY command contains invalid word 3.1%
6. PS command - no previous screen 2.7%
7. Valid command at an inappropriate time 2.0%
8. DISPLAY command-record numbers too large 2.0%
9. 745 2.0%
10. Search term missing from search command 1.2%
11. All others 7.2%
Ten most frequent EXPLAIN requests:
1. GUIDE 32.4%
2. LOCATE (INS/PSY DBS) 10.8%
3. Unrecognized term 8.1%
4. LOCATE (PE DB) 8.1%
5. COMMANDS (ABI/PSY DBS) 5.4%
6. INDEXES (PSY DB) 5.4%
7. FIND (PSY DB) 5.4%
8. P087 5.4%
9. ADDON SEARCH 5.4%
10. 5341 5.4%
11. All others 8.1%
Ten most frequent HELP situations:
1. Help requested from SET DB command 30.6%
2. FIND command with invalid index name 11.1%
3. First word of command is invalid 6.9%
4. DISPLAY command - last of >1 screen 6.9%
5. FIND command retrieves >1 book 5.6%
6. DISPLAY command-complete in one screen 4.2%
7. Valid command at an inappropriate time 2.8%
8. SHOW command with invalid modifier 2.8%
9. SET DB command entered w/o modifier 2.8%
10. DISPLAY command contains invalid word 2.8%
11. All others 23.6%
Ten most frequent SHOW requests:
1. MAIL STATUS 59.3%
2. HISTORY 22.2%
3. SEARCH 18.5%
11. All others 0.0%
PSYmm/dd psy MELVYL PSYCINFO DATABASE TELNET STATISTICS (weekly)