MELVYL ABI DATABASE TELNET STATISTICS
Time period: 11/01/00 through 11/30/00
1.0 SUMMARY STATISTICS
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1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 54 366 420
Davis 104 6 110
Irvine 112 0 112
Los Angeles 5 155 160
Riverside 41 5 46
San Diego 9 23 32
San Francisco 54 0 54
Santa Barbara 29 32 61
Santa Cruz 19 2 21
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 3 3
Los Alamos 0 0 0
Other - UC 1 24 25
Other-Network UC n/a 233 233
_______ ______ _____
428 849 1,277
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 18 114 1,655
2-4 a.m. 9 42 902
4-6 a.m. 15 57 566
6-8 a.m. 25 71 722
8-10 a.m. 128 317 2,907
10-12 a.m. 216 579 8,114
12-2 p.m. 239 606 12,792
2-4 p.m. 252 741 11,828
4-6 p.m. 181 529 14,301
6-8 p.m. 91 242 2,272
8-10 p.m. 65 199 3,105
10-12 p.m. 38 153 2,760
__________ __________ __________ _________________
Total: 1,277 3,650 61,924
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 204 1,039 1,243
Davis 291 20 311
Irvine 275 0 275
Los Angeles 9 566 575
Riverside 85 7 92
San Diego 29 105 134
San Francisco 117 0 117
Santa Barbara 69 63 132
Santa Cruz 53 2 55
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 7 7
Los Alamos 0 0 0
Other - UC 1 81 82
Other-Network UC n/a 627 627
_______ ______ _____
1,133 2,517 3,650
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 2,062 21,260 23,322
Davis 2,374 187 2,561
Irvine 2,464 0 2,464
Los Angeles 49 16,502 16,551
Riverside 554 92 646
San Diego 166 1,653 1,819
San Francisco 1,650 0 1,650
Santa Barbara 489 2,519 3,008
Santa Cruz 380 14 394
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 308 308
Los Alamos 0 0 0
Other - UC 3 785 788
Other-Network UC n/a 8,413 8,413
_______ ______ _____
10,191 51,733 61,924
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 1.4
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
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Median session length (minutes:seconds) 8:03
Average session length (minutes:seconds) 14:31
Longest session recorded (minutes:seconds) 399:57
Average number of searches completed per session 2.8
Retrievals per search - median 10.0
Retrievals per search - average 1532.2
Retrievals per search - standard deviation 13916
Percent of searches completed with 0 results 26.0%
Percent of searches entered that are long 1.8%
Percent of long searches completed
(includes partial results) 74.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 3,294 23.1%
DISPLAY (excluding automatic displays) 6,535 45.9%
BROWSE 10 0.1%
SELECT 0 0.0%
HELP 339 2.4%
EXPLAIN 296 2.1%
SET/RESET 506 3.6%
SHOW 89 0.6%
ADD ON (AND, OR, AND NOT) 356 2.5%
LOGON or LOGOFF 1,638 11.5%
COMMENT 0 0.0%
SAVE 749 5.3%
USE 2 0.0%
OTHER 436 3.1%
2.1 Article Text
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DISPLAY TEXT commands 764
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 46
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 856 23.6% 211 24.6% 11 54.1 171.7
TITLE WORD 630 17.4% 251 39.8% 7 99.4 493.0
EXACT TITLE 51 1.4% 17 33.3% 1 43.1 140.5
JOURNAL 172 4.7% 53 30.8% 132 4891.7 18048.3
EXACT JOURNAL 93 2.6% 31 33.3% 631 5057.8 9031.5
SUBJECT 395 10.9% 206 52.1% 302 10355.4 37385.9
EXACT SUBJECT 41 1.1% 12 29.3% 3,296 10615.6 15825.3
KEYWORD 1,045 28.8% 136 13.0% 58 2330.3 19969.1
PUB TYPE 22 0.6% 4 18.2% 219 3070.7 8801.6
DATE 77 2.1% 20 26.0% 14 211.3 508.5
ADDED 4 0.1% 0 0.0% 13,542 10754.0 5576.0
ARTICLE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 6 0.2% 0 0.0% 358 2125.3 2933.2
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 67 1.8% 12 17.9% 256 276.1 300.5
EX COMPANY NAME 27 0.7% 5 18.5% 283 223.3 116.1
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 1 0.0% 0 0.0% 68 68.0 0.0
PERIODICAL 74 2.0% 16 21.6% 6 21.9 56.0
EXACT PE 20 0.6% 4 20.0% 3 26.9 84.1
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 49 1.3% 8 16.3% 18 1000.7 3250.7
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 327 10.0% 97 29.7% 11 207.2 857.1
Single 2,948 90.0% 780 26.5% 33 2509.8 17932.9
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 8 80.0% 2 25.0% 4 11.7 14.0
EXACT SUBJECT 2 20.0% 2 100% 0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 3.2%
SHORT 89.8%
LONG 1.2%
TAGS 0.0%
FIELDS 1.4%
BROWSE REVIEW 0.1%
BROWSE LONG 0.0%
PERIODICALS 2.4%
COMMENTS 0.0%
Other 1.9%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 10.4%
Ten most frequent errors:
1. First word of command is invalid 32.8%
2. NS command - no next screen 27.2%
3. FIND command with invalid index name 10.4%
4. PS command - no previous screen 5.6%
5. DISPLAY command contains invalid word 5.1%
6. Valid command at an inappropriate time 2.5%
7. DISPLAY command - no FIND results 1.7%
8. Search term missing from search command 1.7%
9. BROWSE command with invalid index name 1.2%
10. DISPLAY command-record numbers too large 0.8%
11. All others 11.1%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 24.3%
2. LOCATE (ARTICLE DBS) 19.9%
3. FIND (ABI DB) 8.8%
4. INDEXES (ABI DB) 8.4%
5. COMMANDS (ABI/PSY DBS) 5.4%
6. MAGS TEXT 4.1%
7. DISPLAY (ABI DB) 4.1%
8. ABI/INFORM DB 3.7%
9. Unrecognized term 3.4%
10. PUBLICATION TYPES (ABI DB) 2.0%
11. All others 15.9%
Ten most frequent HELP situations:
1. Help requested from SET DB command 24.9%
2. First word of command is invalid 15.1%
3. FIND command with invalid index name 10.4%
4. DISPLAY command - middle of >1 screen 7.1%
5. DISPLAY command-complete in one screen 5.8%
6. DISPLAY command-first of >1 screen 5.8%
7. PS command - no previous screen 5.4%
8. FIND command with zero results 4.7%
9. Valid command at an inappropriate time 1.9%
10. NS command - no next screen 1.9%
11. All others 17.0%
Ten most frequent SHOW requests:
1. HISTORY 56.1%
2. SEARCH 22.0%
3. ABI NEWS 6.1%
4. GLOSSARY 3.7%
5. SYSTEM NEWS 2.4%
6. LIBRARY NEWS 2.4%
7. UCB INFORMATION 1.2%
8. UCB LIBRARY HOURS 1.2%
9. MAIL SETTINGS 1.2%
10. DISPLAY 1.2%
11. All others 2.4%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)