SYSTEMS AND METHODS FOR EXTRACTING KEYWORDS IN LANGUAGE LEARNING

摘要

Disclosed are systems, methods, and products for language learning that may extract text from various resources having text, using various natural-language processing features, which can be combined with custom-designed learning activities to offer a needs-based, adaptive learning methodology. The system may receive a resource, extract keywords pedagogically valuable to non-native language learning and academic exercises. Metadata describing various aspects of resources from which keywords are extracted may be associated with keywords. Metadata describing various aspects of keywords may also be associated with keywords. Extracted keywords may be stored into a keyword store along with any metadata associated with keywords.

主权项

1. A computer-implemented method for extracting keywords from text comprising:
parsing, by a computer, a set of one or more potential keywords from text of a resource containing text; storing, by the computer, into a keyword store each potential keyword in the set matching a term in a computer file containing a keyword whitelist and each potential keyword in the set matching a collocation in the keyword whitelist; determining, by the computer, for one or more potential keywords in the set of potential keywords, a word difficulty value associated with each of the one or more potential keywords based on scoring rules determining the word difficulty value; and storing, by the computer, into the keyword store each potential keyword having a determined pedagogical value that satisfies a threshold word difficulty value.