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Page impressions, ABCe audit, October 2011
Unique users, ABCe audit, October 2011
- Distinct hosts An indicator of the number of different machines accessing the website. Our annual questionnaires suggest about 1.4 individual users/distinct host.
- Successful requests
The number of pages viewed and links clicked on the site. It excludes images.
For more detail see Analog's definitions
- Page impression A file, or combination of files, sent to a valid user as a result of that user’s request being received by the server.
- Impact factor
The journal impact factor is a measure of the frequency with which the average article in a journal has been cited in a particular year. It is calculated by dividing the number of citations in the current year to articles published in the two previous years by the total number of articles published in the two previous years.
The number of articles include only original research and review articles. Editorials, letters, news items, and meeting abstracts are not included in article counts. This description comes from ISI Web of Knowledge.