The phrase "a selected group of users" is correct and usable in written English.
It can be used when referring to a specific subset of users who have been chosen for a particular purpose or study.
Example: "The survey was conducted among a selected group of users to gather feedback on the new features."
Alternatives: "a chosen group of users" or "a designated group of users".
In fact, this model captures collective patterns from the crowd rather than a selected group of users.
Unlike the public counterparts, the private blockchains can be accessed only by a selected group of users who have the rights to enter, validate, record and exchange data on that ledger.
In the case of Pitch, users will be able to create documents for their own ends, but they can also use Pitch as a distribution platform, either to a selected group of users (for example, if you are pitching your startup to investors), or to a wider audience who are also Pitch users.
In fact, during the development of the project, a selected group of users (including doctors, nurses, biologists and technicians) had access to a website specially developed to collect comments and requests regarding the software.
And a "selected" group of developers and corporate users will have access to a beta version of the software immediately.
The literature of the subject abounds in the presentations of models of interfaces of mobile systems that give priority to a selected group of services [5 8] or to users [9, 10].
For those of you living off-line: Instant Messenger, or IM, allows users to converse by typewritten messages with a selected group of "buddies".
Firstly, all participants came from a selected group of computer workers in Denmark that may not be representative of all computer users.
A selected group of Disney World veteran moms answer questions from consumers who are planning Disney vacations.
What follows is a profile of a selected group of young, emerging artists who have moved to an unlikely town.
This tool allows the user to compare the query sequence against a virtual database of DNA and/or protein sequences from a selected group of organisms with finished or unfinished genomes.
