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Response to BEPress report



Ann: I wonder�if you would be so kind as to post my response, below, to the recent exchanges on Liblicense for me.

Thank you so much. Peter Shepherd

*�******

On Metrics�

I �have read with interest the comments of Joe Esposito and Phil Davis on the Berkeley Electronic Press report on the�potential inflationary effects of internet robots, crawlers, etc. on online usage statistics. As far as usage reports are concerned, there�seem to me to be�two relevant scenarios, in one of which there should be no inflation of the usage statistics due to internet robots, etc., while in the other scenarios there is a potentail effect.�Both�scenarios are described below:

Scenario 1: Usage of subscription-based online resources, whose access is limited to a closed community ( this is the scenario in a typical library or library consortium to which vendors supply COUNTER reports). This type of usage, as Phil Davis indicates,�is very unlikely to be susceptible to internet robots, etc.

Scenario 2: Usage of online resources�in an�open access environment, or�on other platforms without access control: here the effect of internet robots, etc. should be taken into account, as there are likely to be�platforms that�have no filters in place to protect against such robots. Such platforms are, however,�also�going to be visited by Google, Yahoo and other legitimate web search engines which may sweep the site multiple times

To summarise, in Scenario 1, which covers the existing COUNTER usage reports for libraries and library consortia, I think it is reasonable to assume that the inflationary effect of internet robots and their ilk�on the COUNTER usage statistics is negligible. In Scenario 2 such robots do,in all likelihood, have an inflationary effect. An important question, however, is whether such inflation is proportionately the same across all vendors. Perhaps this is�a reasonable assumption, perhaps not.�Most large vendors maintain lists of internet robots and discard usage statistics�from such sources; but do they all use the same lists?��

As far as COUNTER is concerned, we are investigating possible solutions to mitigate the effect of internet robots and their ilk. It becomes�increasingly important to do so as�the prospect of COUNTER usage�statistics being reported�in open access and global�situations grows.

Peter Shepherd
Director
COUNTER�