{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8472861","patent":{"patent_number":"US-8472861","title":"Automatic essay scoring system","assignee":null,"inventors":[],"filing_date":"2010-10-13T00:00:00.000Z","publication_date":"2013-06-25T00:00:00.000Z","cpc_codes":["G09B","G09B"],"num_claims":39,"abstract":"Systems and methods for building a model for use in grading an essay are provided. A plurality of human graded essays are evaluated using a processor to generate a set of features. A score category is determined for each of the plurality of human graded essays. A weight is produced using a processor for each feature based on the score category for each of the plurality of human graded essays and the set of features. A model is generated using a processor based on the weights for the set of features for evaluating an essay. The set of features includes n features, where the first k features have optimized weights, and the last n−k features have fixed predetermined weights."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Automatic essay scoring system","description":"Systems and methods for building a model for use in grading an essay are provided. A plurality of human graded essays are evaluated using a processor to generate a set of features. A score category is","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8472861","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-8472861","citation_suggestion":"Patentable. \"Automatic essay scoring system\" (US-8472861). https://patentable.app/patents/US-8472861","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8472861","json":"https://patentable.app/api/llm-context/US-8472861","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T04:19:28.282Z"}