{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9672448","patent":{"patent_number":"US-9672448","title":"Pruning and label selection in Hidden Markov Model-based OCR","assignee":null,"inventors":[],"filing_date":"2015-11-13T00:00:00.000Z","publication_date":"2017-06-06T00:00:00.000Z","cpc_codes":["G06F","G06F","G06V"],"num_claims":25,"abstract":"Systems and techniques are provided for pruning a node from a possible nodes list for Hidden Markov Model with label transition node pruning. The node may be a label transition node. A frame may be at a predicted segmentation point in decoding input with the Hidden Markov Model. The node may be scored at the frame. The node may be pruned from the possible nodes list for the frame when score for the node is greater than the sum of a best score among nodes on the possible nodes list for the frame and a beam threshold minus a penalty term. A possible nodes list may be generated for a subsequent frame using label selection. A second node may be pruned from the possible nodes list for the subsequent frame with early pruning."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Pruning and label selection in Hidden Markov Model-based OCR","description":"Systems and techniques are provided for pruning a node from a possible nodes list for Hidden Markov Model with label transition node pruning. The node may be a label transition node. A frame may be at","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9672448","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-9672448","citation_suggestion":"Patentable. \"Pruning and label selection in Hidden Markov Model-based OCR\" (US-9672448). https://patentable.app/patents/US-9672448","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9672448","json":"https://patentable.app/api/llm-context/US-9672448","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T18:31:11.686Z"}