11. A system for identifying phrasal terms, the system comprising: a processor; and a memory, wherein the processor is configured to execute steps comprising: receiving a text having a plurality of words; determining a plurality of contexts, wherein a context comprises one or more words proximate to another word in the text; for each context, determining a first frequency based on a number of occurrences of the context within the text; assigning a first rank to at least one context based on the first frequency for the at least one context; determining multiple word-context pairs; for each word-context pair, determining a second frequency based on a number of occurrences of the word associated with the word-context pair being used in the context; assigning a second rank to at least one word-context pair based on the second frequency for the at least one word-context pair; determining a rank ratio for each word-context pair based on the first rank and the second rank associated with the word-context pair; determining a mutual rank ratio based on multiple rank ratios; and identifying a phrasal term based on the mutual rank ratio.
11. A system for identifying phrasal terms, the system comprising: a processor; and a memory, wherein the processor is configured to execute steps comprising: receiving a text having a plurality of words; determining a plurality of contexts, wherein a context comprises one or more words proximate to another word in the text; for each context, determining a first frequency based on a number of occurrences of the context within the text; assigning a first rank to at least one context based on the first frequency for the at least one context; determining multiple word-context pairs; for each word-context pair, determining a second frequency based on a number of occurrences of the word associated with the word-context pair being used in the context; assigning a second rank to at least one word-context pair based on the second frequency for the at least one word-context pair; determining a rank ratio for each word-context pair based on the first rank and the second rank associated with the word-context pair; determining a mutual rank ratio based on multiple rank ratios; and identifying a phrasal term based on the mutual rank ratio. 13. The system of claim 11 , wherein determining a mutual rank ratio comprises: selecting a first rank ratio for a first word-context pair, wherein the word in the first word-context pair comprises a first word, wherein the context in the first word-context pair comprises a second word following the word in the first word-context pair and a third word following the second word; selecting a second rank ratio for a second word-context pair, wherein the word in the second word-context pair comprises the second word, wherein the context in the second word-context pair comprises the first word preceding the word in the second word-context pair and the third word following the word in the second word-context pair; selecting a third rank ratio for a third word-context pair, wherein the word in the third word-context pair comprises the third word, wherein the context in the third word-context pair comprises the first word preceding the second word and the second word preceding the word in the third word-context pair; multiplying the first rank ratio, the second rank ratio and the third rank ratio to determine the mutual rank ratio.