The phrase "segment of users" is correct and usable in written English.
You can use it when referring to a specific group of people who are considered to be users of a particular service or product. For example, "We identified a segment of users who are most likely to benefit from our new feature."
These days, Facebook's fastest-growing segment of users is 35 to 59 years old.
Roughly speaking, the underestimate could be particularly large for users who were willing to pay more: for example, if there is a segment of users willing to pay thousands of dollars a month to access the Internet.
Established smaller businesses not wanting to dedicate resources to manage their own facilities also represent a growing segment of users.
Finally, the cheeky humor is bound to endear the brand to a niche segment of users, making them more loyal.
Because we know that we are not here to only serve a privileged segment of users who can afford surge-pricing.
Got to the point where we started pulling stuff in, which is more painful, because there's a segment of users that really likes it.
A salesperson wouldn't necessarily be able to identify that very specific segment of user.
The service works best if you're using Gmail in tandem with AwayFind's browser extensions, which are available in Firefox and Chrome, and lets you set up filters directly from your inbox (AwayFind also has an email gadget on the Google Apps Marketplace, which is the company's fastest growing segment of user acquisition).
These are segments of users who have indicated an interest in football by, for example, updating their statuses, liking a football-related post or posting football-related links.
Modeling user behavior to detect segments of users to target and to whom address ads (behavioral targeting) is a problem widely-studied in the literature.
Considering the direct contact between clothing and user, the information about anthropometric biomechanical and ergonomic are of extreme relevance for the development of modelling that are appropriated to different needs of different segments of users.
