Why is Lexical Acquisition Necessary?
Language evolves. i.e., new words and new uses of old words are constantly invented.
Traditional Dictionaries were written for the needs of human users. Lexicons are dictionaries formatted for computers. In addition to the format, lexicons can be useful if they contain quantitative information. Lexical acquisition can provide such information.
Traditional Dictionaries draw a sharp boundary between lexical and non-lexical information. It may be useful to erase this distinction.