MELVYL ABI DATABASE TELNET STATISTICS
Time period: 06/01/01 through 06/30/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 10 233 243
Davis 57 0 57
Irvine 92 0 92
Los Angeles 3 139 142
Riverside 30 2 32
San Diego 4 20 24
San Francisco 38 0 38
Santa Barbara 6 13 19
Santa Cruz 3 2 5
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 3 3
Los Alamos 0 0 0
Other - UC 4 6 10
Other-Network UC n/a 187 187
_______ ______ _____
247 605 852
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 21 77 755
2-4 a.m. 6 25 219
4-6 a.m. 8 18 219
6-8 a.m. 21 54 396
8-10 a.m. 103 266 2,581
10-12 a.m. 166 445 6,383
12-2 p.m. 142 434 5,680
2-4 p.m. 159 536 5,495
4-6 p.m. 93 213 2,128
6-8 p.m. 44 142 1,920
8-10 p.m. 37 103 1,124
10-12 p.m. 52 197 3,843
__________ __________ __________ _________________
Total: 852 2,510 30,743
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 41 596 637
Davis 189 0 189
Irvine 476 0 476
Los Angeles 12 391 403
Riverside 51 7 58
San Diego 7 46 53
San Francisco 102 0 102
Santa Barbara 20 20 40
Santa Cruz 11 15 26
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 19 19
Los Alamos 0 0 0
Other - UC 13 12 25
Other-Network UC n/a 482 482
_______ ______ _____
922 1,588 2,510
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 163 8,373 8,536
Davis 1,494 0 1,494
Irvine 5,669 0 5,669
Los Angeles 73 6,207 6,280
Riverside 240 29 269
San Diego 131 255 386
San Francisco 1,257 0 1,257
Santa Barbara 72 312 384
Santa Cruz 82 133 215
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 89 89
Los Alamos 0 0 0
Other - UC 15 23 38
Other-Network UC n/a 6,126 6,126
_______ ______ _____
9,196 21,547 30,743
1.4 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.5
Standard deviation in seconds 1.3
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 ABI Database Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 10:24
Average session length (minutes:seconds) 14:30
Longest session recorded (minutes:seconds) 408:13
Average number of searches completed per session 2.9
Retrievals per search - median 5.0
Retrievals per search - average 792.9
Retrievals per search - standard deviation 6509.8
Percent of searches completed with 0 results 27.2%
Percent of searches entered that are long 3.4%
Percent of long searches completed
(includes partial results) 62.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 2,217 26.6%
DISPLAY (excluding automatic displays) 3,816 45.8%
BROWSE 5 0.1%
SELECT 0 0.0%
HELP 55 0.7%
EXPLAIN 65 0.8%
SET/RESET 394 4.7%
SHOW 15 0.2%
ADD ON (AND, OR, AND NOT) 293 3.5%
LOGON or LOGOFF 1,016 12.2%
COMMENT 0 0.0%
SAVE 209 2.5%
USE 1 0.0%
OTHER 244 2.9%
2.1 Article Text
_________________
DISPLAY TEXT commands 219
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 53
displays or when any of these paging options is set.
TEXT included with MAIL commands 0
SET DISPLAY TEXT commands 0
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 822 33.6% 211 25.7% 15 97.8 339.4
TITLE WORD 451 18.5% 176 39.0% 4 154.3 1043.6
EXACT TITLE 41 1.7% 15 36.6% 2 21.4 68.1
JOURNAL 105 4.3% 34 32.4% 750 4471.2 10680.5
EXACT JOURNAL 55 2.3% 11 20.0% 141 1060.3 1812.6
SUBJECT 91 3.7% 45 49.4% 248 7517.7 20857.8
EXACT SUBJECT 13 0.5% 10 76.9% 2,834 2284.3 1993.2
KEYWORD 613 25.1% 128 20.9% 36 1913.6 11950.5
PUB TYPE 13 0.5% 1 7.7% 61 118.7 129.8
DATE 78 3.2% 11 14.1% 7 421.7 1930.3
ADDED 2 0.1% 0 0.0% 14,854 14854.0 0.0
ARTICLE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 2 0.1% 1 50.0% 135 135.0 0.0
GEOGRAPHIC NAME 0 0.0% 0 0.0% 0 0.0 0.0
SUBJ CATEGORY 0 0.0% 0 0.0% 0 0.0 0.0
COMPANY NAME 32 1.3% 7 21.9% 59 302.6 542.1
EX COMPANY NAME 4 0.2% 2 50.0% 48 48.0 65.1
DUNS 4 0.2% 3 75.0% 1 1.0 0.0
TICKER SYMBOL 0 0.0% 0 0.0% 0 0.0 0.0
ID NUMBER 5 0.2% 0 0.0% 1 1.0 0.0
ISSN 3 0.1% 1 33.3% 19,853 19852.5 27939.9
PERIODICAL 61 2.5% 9 14.8% 5 125.3 484.4
EXACT PE 28 1.1% 4 14.3% 1 5.0 9.4
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 20 0.8% 0 0.0% 93 2830.2 5361.9
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 243 11.1% 73 30.0% 7 222.9 1260.3
Single 1,951 88.9% 521 26.7% 19 1287.6 8495.9
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 5 100% 0 0.0% 5 10.8 15.8
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 6.1%
SHORT 87.7%
LONG 0.7%
TAGS 0.0%
FIELDS 1.2%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 2.8%
COMMENTS 0.0%
Other 1.4%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 6.7%
Ten most frequent errors:
1. NS command - no next screen 35.3%
2. First word of command is invalid 29.3%
3. FIND command with invalid index name 7.5%
4. DISPLAY command contains invalid word 5.0%
5. PS command - no previous screen 2.7%
6. Search term missing from search command 2.2%
7. Max. # of ports to a Z39 db are in use 2.2%
8. Add-on search, no index name after verb 1.7%
9. DISPLAY command - no FIND results 1.5%
10. Command contains escape or arrow key 1.2%
11. All others 11.5%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 29.2%
2. FIND (ABI DB) 12.3%
3. LOCATE (ARTICLE DBS) 12.3%
4. INDEXES (ABI DB) 9.2%
5. COMMANDS (ABI/PSY DBS) 9.2%
6. ABI/INFORM DB 7.7%
7. DISPLAY (ABI DB) 3.1%
8. MAIL 3.1%
9. Unrecognized term 3.1%
10. DATABASES 3.1%
11. All others 7.7%
Ten most frequent HELP situations:
1. Help requested from SET DB command 34.2%
2. First word of command is invalid 14.2%
3. FIND command with invalid index name 9.2%
4. DISPLAY command-complete in one screen 6.7%
5. FIND command with zero results 5.8%
6. DISPLAY command-first of >1 screen 3.3%
7. DISPLAY command - last of >1 screen 3.3%
8. NS command - no next screen 2.5%
9. F/BR command with invalid search term 2.5%
10. DISPLAY command - middle of >1 screen 2.5%
11. All others 15.8%
Ten most frequent SHOW requests:
1. HISTORY 100%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)