MELSRV ABI DATABASES Z39.50 SERVER STATISTICS
Time period: 02/17/01 through 02/23/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 138 2,514
2-4 a.m. 31 1,196
4-6 a.m. 17 372
6-8 a.m. 13 573
8-10 a.m. 246 5,029
10-12 a.m. 842 22,249
12-2 p.m. 952 20,540
2-4 p.m. 1,147 35,829
4-6 p.m. 918 40,610
6-8 p.m. 495 17,246
8-10 p.m. 397 10,665
10-12 p.m. 263 9,281
__________ _____________ _________________
Total: 5,459 166,104
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 34
Davis 13
Irvine 3
Los Angeles 74
Riverside 3
San Diego 76
San Francisco 7
Santa Barbara 9
Santa Cruz 3
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 3,433
Searchlight 1,742
Other - UC 54
Other-Network UC 8
_____
5,459
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 217
Davis 21
Irvine 25
Los Angeles 495
Riverside 100
San Diego 504
San Francisco 6
Santa Barbara 95
Santa Cruz 15
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 157,267
Searchlight 5,804
Other - UC 1,252
Other-Network UC 303
_____
166,104
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.4
Standard deviation in seconds 4.5
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 1.0
2.0 ABI Database Detailed Statistics
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Median session length (minutes:seconds) 0:10
Average session length (minutes:seconds) 11:23
Longest session recorded (minutes:seconds) 199:52
Average number of searches completed per session 0.0
Retrievals per search - median 7.0
Retrievals per search - average 954.4
Retrievals per search - standard deviation 5977.1
Percent of searches completed with 0 results 26.5%
Percent of searches entered that are long 0.2%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 5,459 13.3%
PRESENT 32,305 79.0%
INIT or CLOSE 3,095 7.6%
OTHER 35 0.1%
SEARCHes completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. SEARCHes No. Index Median Avg. Dev.
______ _________ ______ _______ ______ __________ _______
By index:
PERSONAL AUTHOR 739 10.7% 203 27.5% 7 185.4 1159.2
TITLE WORD 550 8.0% 165 30.0% 3 388.1 4671.8
EXACT TITLE 83 1.2% 37 44.6% 1 3.3 9.8
JOURNAL 247 3.6% 96 38.9% 11 1319.1 5276.5
EXACT JOURNAL 277 4.0% 62 22.4% 368 2650.5 10195.5
SUBJECT 305 4.4% 158 51.8% 46 1791.4 5813.1
EXACT SUBJECT 182 2.6% 34 18.7% 40 4135.1 16707.5
KEYWORD 3,484 50.5% 866 24.9% 34 1327.3 6713.2
PUB TYPE 119 1.7% 14 11.8% 31 328.1 1087.7
DATE 160 2.3% 47 29.4% 23 406.2 1150.8
ADDED 60 0.9% 16 26.7% 38 34.5 20.6
LANGUAGE 50 0.7% 7 14.0% 45 1047.7 3618.7
GEOGRAPHIC NAME 0 0.0% 0 0.0% 0 0.0 0.0
SUBJ CATEGORY 24 0.3% 6 25.0% 15 41.5 69.8
COMPANY NAME 117 1.7% 35 29.9% 15 255.9 903.7
EX COMPANY NAME 9 0.1% 4 44.4% 41 60.4 69.6
DUNS 0 0.0% 0 0.0% 0 0.0 0.0
TICKER SYMBOL 0 0.0% 0 0.0% 0 0.0 0.0
ID NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 0 0.0% 0 0.0% 0 0.0 0.0
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 56 0.8% 10 17.9% 22 913.5 4839.6
AT 424 6.2% 91 21.5% 38 1417.3 5938.5
Other indexes 8 0.1% 5 62.5% 80 528.0 822.3
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. SEARCHes No. Index Median Avg. Dev.
______ _________ ______ _______ ______ __________ _______
By number of indexes:
Multiple 1,156 21.2% 310 26.8% 22 894.0 5071.8
Single 4,303 78.8% 1,135 26.4% 26 1405.8 7354.3
PRESENT commands, by type:
MARC 46.4%
OPAC 23.4%
SABmm/dd srv.abi MELSRV ABI DATABASES Z39.50 SERVER STATISTICS (weekly)