ServiceCollection configuration using strings (config files) in .NET Core

Is there a way to configure dependency injection in the standard Microsoft.Extensions.DependencyInjection.ServiceCollection library in .net core, without actually having a reference to the implementation classes in question? (to get implementation class names from configuration files?)

For example:

services.AddTransient<ISomething>("The.Actual.Thing");// Where The.Actual.Thing is a concrete class