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The next several sections analyze available statistics for direc= t use of EVS resources on EVS servers. This section covers direct use of NC= I-hosted EVS terminology browsers and the LexEVS local java API that suppor= ts them. Later sections cover the LexEVS distributed (remote), LexEVS caGri= d services, the term suggestion site, and ftp download services.
The EVS browsers and LexEVS APIs at NCI are covered by the AWStats and W= usage applications, recording various statistics including number of unique= visitors, visits, number of pages viewed and data volume accessed. These h= ave been collected below to give a window into the use of the EVS services.= Appendix 1 lists the usage tracking pages from which these statistics are = gathered.
We are now able to identify and exclude most web crawler and similar aut= omated hits, as well as internal use for testing and development purposes. = Detailed examination of addresses and patterns of use suggest that the use = reported below overwhelmingly represents real users from NCI and other orga= nizations of interest. Analyzed below are figures for unique visitors and n= umber of visits, as well as the volume of data communicated, which for all = but ftp sites reflects high volumes of traffic in mostly compact units of t= erminology concept data.
The EVS browsers run off the LexEVS local API, and provide the highest n= umber of direct users of EVS terminology servers. The lowest, but most info= rmative, numbers are for unique visitors and number of visits. The number o= f unique visitors to the EVS family of browsers has averaged around 4,000 p= er month in 2015, growing to around 10,000 per month by the end of 2016 gen= erating some 17,000 visits.
Unique visitors to EVS browsers, per month
Key
Abbreviation
Site
NCITerms
NCI Term Browser (many terminologies, value s= ets and mappings)
NCIt
NCI Thesaurus Browser (now one face of NCITer= ms, counted separately)
NCIm
NCI Metathesaurus Browser (separate app, sear= chable from NCITerms)
TermForm
EVS Term Suggestion site (covered later)
<= /td>
Number of visits to EVS browsers, per month =
The data below is from January - December 2020. It shows an overall view= of which internet domains hit EVS browsers most heavily, and then breaks d= own each domain by top users. All browsers are put together for this analys= is.
The amount of bandwidth used was divided into four (4) major groups: Gov= ernment .gov users, private .com and .net users, Educational .edu instituti= ons, and Organizations .org. The data was analyzed and bots were discarded = to avoid skewing the data.
Data accessed (MB) from EVS browsers by domain
Domain |
MB |
---|---|
org |
87151 |
com |
39280 |
gov |
2052
|
edu |
410
|
Data accessed (MB) from EVS browsers by domain
The three browsers offered by EVS are
NCITerms | NCI Term Browser: Access to all terminologies, v= alue sets and mappings. |
---|---|
NCIt | NCI Thesaurus Browser: Now just one face of NCIT= erms, but the most used and counted separately. |
NCIm | NCI Metathesaurus Browser: A separate applicatio= n, searchable from NCITerms. |
Nearly 75% of all use goes to the NCIt browser, including almost all use= from the educational domain and two thirds of government use. By con= trast, half of commercial domain use goes to NCI Terms, while .org use is a= lmost evenly split between all three browsers.