Search Results for author: Jiwoo Son

Found 9 papers, 7 papers with code

USPR: Learning a Unified Solver for Profiled Routing

no code implementations8 May 2025 Chuanbo Hua, Federico Berto, Zhikai Zhao, Jiwoo Son, Changhyun Kwon, Jinkyoo Park

The Profiled Vehicle Routing Problem (PVRP) extends the classical VRP by incorporating vehicle-client-specific preferences and constraints, reflecting real-world requirements such as zone restrictions and service-level preferences.

Computational Efficiency Decoder +1

Neural Combinatorial Optimization for Real-World Routing

1 code implementation20 Mar 2025 Jiwoo Son, Zhikai Zhao, Federico Berto, Chuanbo Hua, Changhyun Kwon, Jinkyoo Park

First, we introduce a new, openly available dataset with real-world data containing a diverse dataset of locations, distances, and duration matrices from 100 cities, considering realistic settings with actual routing distances and durations obtained from Open Source Routing Machine (OSRM).

Combinatorial Optimization

Neural Genetic Search in Discrete Spaces

no code implementations9 Feb 2025 Hyeonah Kim, Sanghyeok Choi, Jiwoo Son, Jinkyoo Park, Changhyun Kwon

Effective search methods are crucial for improving the performance of deep generative models at test time.

CAMP: Collaborative Attention Model with Profiles for Vehicle Routing Problems

1 code implementation6 Jan 2025 Chuanbo Hua, Federico Berto, Jiwoo Son, Seunghyun Kang, Changhyun Kwon, Jinkyoo Park

CAMP employs a specialized attention-based encoder architecture to embed profiled client embeddings in parallel for each vehicle profile.

Computational Efficiency Multi-agent Reinforcement Learning

Parallel AutoRegressive Models for Multi-Agent Combinatorial Optimization

2 code implementations5 Sep 2024 Federico Berto, Chuanbo Hua, Laurin Luttmann, Jiwoo Son, Junyoung Park, Kyuree Ahn, Changhyun Kwon, Lin Xie, Jinkyoo Park

To address these issues, we propose Parallel AutoRegressive Combinatorial Optimization (PARCO), a reinforcement learning framework designed to construct high-quality solutions for multi-agent combinatorial tasks efficiently.

Combinatorial Optimization Computational Efficiency +2

Ant Colony Sampling with GFlowNets for Combinatorial Optimization

2 code implementations11 Mar 2024 Minsu Kim, Sanghyeok Choi, Hyeonah Kim, Jiwoo Son, Jinkyoo Park, Yoshua Bengio

We present the Generative Flow Ant Colony Sampler (GFACS), a novel meta-heuristic method that hierarchically combines amortized inference and parallel stochastic search.

Combinatorial Optimization

Equity-Transformer: Solving NP-hard Min-Max Routing Problems as Sequential Generation with Equity Context

2 code implementations5 Jun 2023 Jiwoo Son, Minsu Kim, Sanghyeok Choi, Hyeonah Kim, Jinkyoo Park

Notably, our method achieves significant reductions of runtime, approximately 335 times, and cost values of about 53\% compared to a competitive heuristic (LKH3) in the case of 100 vehicles with 1, 000 cities of mTSP.

Decision Making Traveling Salesman Problem

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