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Patent drawing for Natural language speech lattice containing semantic variants
US 7,873,519 B2
Education US 7,873,519 B2 Expired

Natural language speech lattice containing semantic variants

This invention describes a method for building the knowledge base for a voice-activated question-answering system. It focuses on creating a network of questions that are semantically similar, meaning they have the same underlying meaning even if phrased differently. This network is populated by defining initial questions and their answers, then expanding them using semantically related words like synonyms, often sourced from linguistic databases like WORDNET.

Why it matters: Filed before the advent of modern large language models, the manual or rule-based generation of semantically variant questions and populating a speech lattice would have been a significant challenge. Today, advanced AI and LLMs can automate and vastly improve the semantic understanding and generation required for this system's core functionality.

Status
ExpiredProtection ended and was never renewed
How hard to build
SpecializedNLP, speech recognition, software logic

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