18. The computer-readable medium of claim 15 , where the named entity refers to a company.
15. A non-transitory computer-readable medium to store instructions to identify named entities, the instructions comprising: one or more instructions which, when executed by one or more processors associated with a computing device, cause the one or more processors to: receive an electronic mail document or a web page document that includes a sequence of terms; calculate a first value representing a coherence of the terms included the sequence; calculate a second value representing an entropy of contexts associated with the sequence; determine that the sequence is associated with a named entity based on: the first value satisfying a first threshold, and the second value satisfying a second threshold; and store an indication that the sequence is associated with the named entity.