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Expert Selection System for MoE Large Language Models

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Summary

USPTO published patent application US20260099697A1 for an expert selection system in Mixture of Experts (MoE) large language models. The system includes a global selector that manages selection between global and local modes, and a pre-fetcher that pre-loads selected global expert sets from main memory into faster cache memory. Inventors include Usman Sajid, Marie Mai Nguyen, Shuyi Pei, Younghoon Kim, and Rekha Pitchumani. The filing date was October 1, 2025, under application number 19347703.

What changed

USPTO published patent application US20260099697A1 disclosing a system and method for expert selection in Mixture of Experts (MoE) large language models. The invention comprises a global selector configured to operate in either global mode (selecting a global expert set for each layer prior to inference) or local mode, along with a pre-fetcher that moves selected global expert sets from main memory into faster cache memory. The system identifies and pre-loads "global hot experts" expected to be frequently accessed.

Affected parties include AI researchers, LLM developers, semiconductor manufacturers designing AI accelerators, and cloud computing providers deploying large language models. The patent addresses computational efficiency challenges in MoE architectures where multiple specialized expert networks must be selectively activated. Organizations developing or deploying MoE-based AI systems may wish to monitor this application for potential licensing considerations or design-around opportunities.

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Archived snapshot

Apr 12, 2026

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← USPTO Patent Applications

EXPERT SELECTION FROM MIXTURE OF EXPERTS IN LARGE LANGUAGE MODELS

Application US20260099697A1 Kind: A1 Apr 09, 2026

Inventors

Usman SAJID, Marie Mai NGUYEN, Shuyi PEI, Younghoon KIM, Rekha PITCHUMANI

Abstract

A system and a method for a machine learning (ML) model with expert selection are disclosed. The model includes a global selector and a pre-fetcher. The global selector is configured to manage a selection scheme having at least one of a global mode or a local mode. In the global mode, the global selector selects a global expert set from a mixture of experts (MoE) to generate a selected global expert set for each layer prior to an inference phase in the ML model. The pre-fetcher is configured to pre-fetch in the global mode the selected global expert set from a first memory into a second memory. The selected global expert set includes one or more global hot experts.

CPC Classifications

G06N 3/045 G06N 3/0499

Filing Date

2025-10-01

Application No.

19347703

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Last updated

Classification

Agency
USPTO
Published
April 9th, 2026
Instrument
Notice
Legal weight
Non-binding
Stage
Final
Change scope
Minor
Document ID
US20260099697A1

Who this affects

Applies to
Technology companies Manufacturers Investors
Industry sector
5112 Software & Technology
Activity scope
Patent application publication AI model optimization Machine learning systems
Geographic scope
United States US

Taxonomy

Primary area
Intellectual Property
Operational domain
Legal
Topics
Artificial Intelligence

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