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combinatorial optimization

5 items

RESEARCHarXiv CS.LG·15d ago

WeCon: An Efficient Weight-Conditioned Neural Solver for Multi-Objective Combinatorial Optimization Problems

Researchers propose WeCon, an efficient Weight-Conditioned neural solver for Multi-Objective Combinatorial Optimization Problems (MOCOPs). It improves weight-conditioned context modeling and preference optimization, addressing limitations of existing methods in weight injection and constructing informative solution pairs for training.

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RESEARCHarXiv CS.CL·4/6/2026

Principled and Scalable Diversity-Aware Retrieval via Cardinality-Constrained Binary Quadratic Programming

Este trabalho propõe uma formulação rigorosa para a recuperação consciente da diversidade em Geração Aumentada por Recuperação (RAG), abordando a falta de garantias teóricas e escalabilidade dos métodos existentes. A solução utiliza programação quadrática binária com restrição de cardinalidade (CCBQP) e um algoritmo baseado em Frank-Wolfe, demonstrando desempenho superior na fronteira de Pareto de relevância-diversidade e maior velocidade.

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RESEARCHarXiv CS.AI·4/16/2026

Optimizing Earth Observation Satellite Schedules under Unknown Operational Constraints: An Active Constraint Acquisition Approach

This paper addresses Earth Observation satellite scheduling under unknown operational constraints, which must be learned interactively from a binary oracle. The authors introduce Conservative Constraint Acquisition (CCA), a domain-specific procedure, to efficiently identify justified constraints for a simplified model.

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RESEARCHarXiv CS.AI·29d ago

Fast and Effective Redistricting Optimization via Composite-Move Tabu Search

This research introduces a composite-move Tabu search (CM-Tabu) algorithm designed for fast and effective spatial redistricting optimization. It tackles the contiguity constraint by expanding the feasible neighborhood to include composite moves, ensuring better exploration and preventing the search from getting trapped in poor local optima.

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RESEARCHarXiv CS.AI·12d ago

DynaSchedBench: Calibrated Dynamic Scheduling Benchmarks and Observability Paradox in LLM-based Scheduling Agents

DynaSchedBench is a new diagnostic framework for the Dynamic Flexible Job Shop Scheduling Problem (DFJSP), addressing limitations in neural combinatorial optimization. It uses a Sequential Event-Space Calibrator (SESC) and Schedule Stress Index (SSI) to rigorously control instance generation and stratify difficulty. This method proves more efficient than evolutionary baselines, enabling rigorous testing of LLM-based scheduling agents.

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