{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8515975","patent":{"patent_number":"US-8515975","title":"Search entity transition matrix and applications of the transition matrix","assignee":null,"inventors":[],"filing_date":"2009-12-07T00:00:00.000Z","publication_date":"2013-08-20T00:00:00.000Z","cpc_codes":["H04L","G06F","G06F","G06F","G06F","G06N"],"num_claims":16,"abstract":"Methods, systems, and apparatus, including computer programs encoded on computer storage media, for using search entity transition probabilities. In some implementations, data identifying entities and transition probabilities between entities is stored in a computer readable medium. Each transition probability represents a strength of a relationship between a pair of entities as they are related in search history data. In some implementations, an increase in popularity for a query is identified and a different query is identified as temporally related to the query. Scoring data for documents responsive to the different query is modified to favor newer documents. In other implementations, data identifying a first session as spam is received, and a spam score is calculated for either a second session of queries or a single query using transition probabilities. The second session (or single query) is identified as spam from the spam score."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Search entity transition matrix and applications of the transition matrix","description":"Methods, systems, and apparatus, including computer programs encoded on computer storage media, for using search entity transition probabilities. In some implementations, data identifying entities and","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8515975","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-8515975","citation_suggestion":"Patentable. \"Search entity transition matrix and applications of the transition matrix\" (US-8515975). https://patentable.app/patents/US-8515975","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8515975","json":"https://patentable.app/api/llm-context/US-8515975","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T18:47:47.543Z"}