MELVYL INSPEC DATABASES TELNET STATISTICS
Time period: 07/14/01 through 07/20/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 23 306 329
Davis 38 1 39
Irvine 66 0 66
Los Angeles 1 131 132
Riverside 1 4 5
San Diego 42 104 146
San Francisco 19 0 19
Santa Barbara 1 47 48
Santa Cruz 5 15 20
Lawrence Berkeley 0 32 32
Lawrence Livermore 0 37 37
Los Alamos 0 0 0
Other - UC 0 30 30
Other-Network UC n/a 527 527
_______ ______ _____
196 1,234 1,430
Relative use of INSPEC databases:
Number of Number of Number of
Sessions FIND commands Records Displayed
_________ _____________ _________________
INS (current) 873 1,948 18,056
INS90 205 344 1,872
INS85 142 246 1,408
INS80 105 172 751
INS69 105 245 1,332
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 50 152 1,092
2-4 a.m. 44 119 1,210
4-6 a.m. 60 151 839
6-8 a.m. 59 145 1,206
8-10 a.m. 131 245 1,616
10-12 a.m. 231 420 3,818
12-2 p.m. 188 366 3,689
2-4 p.m. 294 565 4,880
4-6 p.m. 218 430 2,712
6-8 p.m. 62 141 1,059
8-10 p.m. 71 169 849
10-12 p.m. 22 52 449
__________ __________ __________ _________________
Total: 1,430 2,955 23,419
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 28 643 671
Davis 66 4 70
Irvine 148 0 148
Los Angeles 1 267 268
Riverside 4 7 11
San Diego 130 190 320
San Francisco 67 0 67
Santa Barbara 3 126 129
Santa Cruz 8 24 32
Lawrence Berkeley 0 74 74
Lawrence Livermore 0 99 99
Los Alamos 0 0 0
Other - UC 0 121 121
Other-Network UC n/a 945 945
_______ ______ _____
455 2,500 2,955
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 114 5,400 5,514
Davis 839 5 844
Irvine 2,727 0 2,727
Los Angeles 1 1,595 1,596
Riverside 47 65 112
San Diego 903 1,687 2,590
San Francisco 927 0 927
Santa Barbara 0 1,872 1,872
Santa Cruz 55 129 184
Lawrence Berkeley 0 536 536
Lawrence Livermore 0 902 902
Los Alamos 0 0 0
Other - UC 0 790 790
Other-Network UC n/a 4,825 4,825
_______ ______ _____
5,613 17,806 23,419
1.4 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 1.0
Standard deviation in seconds 5.8
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 INSPEC Databases Detailed Statistics
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Median session length (minutes:seconds) 10:16
Average session length (minutes:seconds) 12:55
Longest session recorded (minutes:seconds) 121:50
Average number of searches completed per session 2.0
Retrievals per search - median 5.0
Retrievals per search - average 1263.9
Retrievals per search - standard deviation 21827
Percent of searches completed with 0 results 29.8%
Percent of searches entered that are long 4.6%
Percent of long searches completed
(includes partial results) 78.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 2,705 30.9%
DISPLAY (excluding automatic displays) 3,193 36.5%
BROWSE 3 0.0%
SELECT 2 0.0%
HELP 40 0.5%
EXPLAIN 95 1.1%
SET/RESET 905 10.4%
SHOW 15 0.2%
ADD ON (AND, OR, AND NOT) 249 2.8%
LOGON or LOGOFF 1,128 12.9%
COMMENT 0 0.0%
SAVE 88 1.0%
USE 3 0.0%
OTHER 322 3.7%
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 1,281 42.3% 319 24.9% 14 93.7 490.0
TITLE WORD 584 19.3% 327 56.0% 5 61.8 244.6
EXACT TITLE 57 1.9% 33 57.9% 3 192.7 793.6
JOURNAL 94 3.1% 39 41.5% 161 721.4 1313.0
EXACT JOURNAL 49 1.6% 36 73.5% 5 126.8 254.7
SUBJECT 79 2.6% 21 26.6% 15 296.8 988.5
EXACT SUBJECT 6 0.2% 2 33.3% 7,011 7665.3 8906.3
THESAURUS 6 0.2% 0 0.0% 19 2082.3 4838.4
EXACT THESAURUS 6 0.2% 4 66.7% 1,608 1608.0 0.0
KEYWORD 615 20.3% 104 16.9% 34 3687.5 36746.4
SUBFILE 6 0.2% 0 0.0% 89 124.7 125.9
FORM 32 1.1% 2 6.3% 69 1530.0 3662.6
DATE 34 1.1% 5 14.7% 3 112.8 503.6
ADDED 11 0.4% 6 54.5% 11 10.8 6.9
ARTICLE 0 0.0% 0 0.0% 0 0.0 0.0
AUTHOR AFFIL. 39 1.3% 10 25.6% 22 46.2 89.9
CONFERENCE 7 0.2% 1 14.3% 4 879.2 2113.5
LANGUAGE 6 0.2% 0 0.0% 89 124.7 125.9
CHEMICAL NAME 1 0.0% 0 0.0% 8 8.0 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 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 108 3.6% 22 20.4% 9 35.4 95.1
EXACT PE 4 0.1% 0 0.0% 3 3.5 2.6
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 2 0.1% 1 50.0% 16 16.0 0.0
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 334 12.5% 133 39.8% 6 337.2 1735.7
Single 2,342 87.5% 662 28.3% 19 1204.7 20323.2
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:
THESAURUS 3 100% 0 0.0% 2 1.7 0.6
EXACT THESAURUS 0 0.0% 0 0.0% 0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 3.0%
SHORT 84.8%
LONG 2.2%
TAGS 0.0%
FIELDS 4.1%
BROWSE REVIEW 0.1%
BROWSE LONG 0.0%
PERIODICALS 4.6%
COMMENTS 0.0%
Other 1.2%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 7.9%
Ten most frequent errors:
1. NS command - no next screen 47.2%
2. First word of command is invalid 23.5%
3. FIND command with invalid index name 5.0%
4. DISPLAY command contains invalid word 3.4%
5. DISPLAY command-record numbers too large 2.1%
6. Valid command at an inappropriate time 1.9%
7. Max. # of ports to a Z39 db are in use 1.7%
8. PS command - no previous screen 1.6%
9. Search term missing from search command 1.5%
10. Add-on search, no index name after verb 0.9%
11. All others 11.1%
Ten most frequent EXPLAIN requests:
1. FIND (INSPEC DBS) 15.8%
2. INSPEC BACKFILES 9.5%
3. INSPEC DATABASES 8.4%
4. GUIDE (INSPEC DBS) 8.4%
5. MAIL 6.3%
6. Unrecognized term 5.3%
7. LOCATE (INS/PSY DBS) 4.2%
8. DISPLAY (INS/PSY DBS) 4.2%
9. G175 3.2%
10. I051 3.2%
11. All others 31.6%
Ten most frequent HELP situations:
1. Help requested from SET DB command 30.4%
2. First word of command is invalid 14.1%
3. NS of SHOW/EXP command-no next screen 11.1%
4. DISPLAY command - middle of >1 screen 9.6%
5. FIND command retrieves >1 book 6.7%
6. FIND command with invalid index name 4.4%
7. DISPLAY command-first of >1 screen 3.0%
8. 850 2.2%
9. NS command - no next screen 1.5%
10. FIND command retrieves 1 book 1.5%
11. All others 15.6%
Ten most frequent SHOW requests:
1. HISTORY 50.0%
2. GLOSSARY 14.3%
3. INSPEC LOADING STATISTICS 7.1%
4. 0210 7.1%
5. SYSTEM NEWS 7.1%
6. LIBRARY NEWS 7.1%
7. MAIL STATUS 7.1%
11. All others 0.0%
INSmm/dd ins MELVYL INSPEC DATABASES TELNET STATISTICS (weekly)