{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9740985","patent":{"patent_number":"US-9740985","title":"Rating difficulty of questions","assignee":null,"inventors":[],"filing_date":"2014-06-04T00:00:00.000Z","publication_date":"2017-08-22T00:00:00.000Z","cpc_codes":["G06N","G06N","G06N"],"num_claims":16,"abstract":"A mechanism is provided in a data processing system for rating difficulty of a question. The mechanism receives an input question and generates one or more candidate answers from a corpus of knowledge using a pipeline of software engines. The pipeline of software engines generates a plurality of features extracted from the question, the one or more candidate answers, or the corpus of knowledge. The mechanism then generates a question difficulty score based on the plurality of features using a machine learning model. The machine learning model maps features to assigned weights for scaling the difficulty score."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Rating difficulty of questions","description":"A mechanism is provided in a data processing system for rating difficulty of a question. The mechanism receives an input question and generates one or more candidate answers from a corpus of knowledge","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9740985","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9740985","citation_suggestion":"Patentable. \"Rating difficulty of questions\" (US-9740985). https://patentable.app/patents/US-9740985","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9740985","json":"https://patentable.app/api/llm-context/US-9740985","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:34:53.557Z"}