Search Results for author: Junyoung Park

Found 28 papers, 8 papers with code

PARCO: Learning Parallel Autoregressive Policies for Efficient Multi-Agent Combinatorial Optimization

1 code implementation5 Sep 2024 Federico Berto, Chuanbo Hua, Laurin Luttmann, Jiwoo Son, Junyoung Park, Kyuree Ahn, Changhyun Kwon, Lin Xie, Jinkyoo Park

Multi-agent combinatorial optimization problems such as routing and scheduling have great practical relevance but present challenges due to their NP-hard combinatorial nature, hard constraints on the number of possible agents, and hard-to-optimize objective functions.

Combinatorial Optimization Decision Making +1

Multi-stream deep learning framework to predict mild cognitive impairment with Rey Complex Figure Test

no code implementations4 Sep 2024 Junyoung Park, Eun Hyun Seo, Sunjun Kim, SangHak Yi, Kun Ho Lee, Sungho Won

Our model has practical implications for clinical settings, where it could serve as a cost-effective tool for early MCI screening.

Enhancing Source-Free Domain Adaptive Object Detection with Low-confidence Pseudo Label Distillation

1 code implementation18 Jul 2024 Ilhoon Yoon, Hyeongjun Kwon, Jin Kim, Junyoung Park, Hyunsung Jang, Kwanghoon Sohn

Extensive experiments demonstrate that our LPLD loss leads to effective adaptation by reducing false negatives and facilitating the use of domain-invariant knowledge from the source model.

object-detection Object Detection +2

On Speculative Decoding for Multimodal Large Language Models

no code implementations13 Apr 2024 Mukul Gagrani, Raghavv Goel, Wonseok Jeon, Junyoung Park, Mingu Lee, Christopher Lott

We show that a language-only model can serve as a good draft model for speculative decoding with LLaVA 7B, bypassing the need for image tokens and their associated processing components from the draft model.

Image Captioning Language Modelling +1

Recursive Speculative Decoding: Accelerating LLM Inference via Sampling Without Replacement

no code implementations21 Feb 2024 Wonseok Jeon, Mukul Gagrani, Raghavv Goel, Junyoung Park, Mingu Lee, Christopher Lott

We empirically evaluate RSD with Llama 2 and OPT models, showing that RSD outperforms the baseline methods, consistently for fixed draft sequence length and in most cases for fixed computational budgets at LLM.

Language Modelling

Layer-wise Auto-Weighting for Non-Stationary Test-Time Adaptation

1 code implementation10 Nov 2023 Junyoung Park, Jin Kim, Hyeongjun Kwon, Ilhoon Yoon, Kwanghoon Sohn

Given the inevitability of domain shifts during inference in real-world applications, test-time adaptation (TTA) is essential for model adaptation after deployment.

Test-time Adaptation

Genetic Algorithms with Neural Cost Predictor for Solving Hierarchical Vehicle Routing Problems

1 code implementation22 Oct 2023 Abhay Sobhanan, Junyoung Park, Jinkyoo Park, Changhyun Kwon

For each higher-level decision candidate, we predict the objective function values of the underlying vehicle routing problems using a pre-trained graph neural network without actually solving the routing problems.

Graph Neural Network

Generating Dispatching Rules for the Interrupting Swap-Allowed Blocking Job Shop Problem Using Graph Neural Network and Reinforcement Learning

no code implementations5 Feb 2023 Vivian W. H. Wong, Sang Hun Kim, Junyoung Park, Jinkyoo Park, Kincho H. Law

The interrupting swap-allowed blocking job shop problem (ISBJSSP) is a complex scheduling problem that is able to model many manufacturing planning and logistics applications realistically by addressing both the lack of storage capacity and unforeseen production interruptions.

Blocking Graph Neural Network +1

Learning context-aware adaptive solvers to accelerate quadratic programming

no code implementations22 Nov 2022 Haewon Jung, Junyoung Park, Jinkyoo Park

Convex quadratic programming (QP) is an important sub-field of mathematical optimization.

Development of AI-cloud based high-sensitivity wireless smart sensor for port structure monitoring

no code implementations24 Sep 2022 Junsik Shin, Junyoung Park, JongWoong Park

To overcome the complication, lots of research related to vibration-based monitoring system with sensor has been devised.

object-detection Object Detection

Neuro CROSS exchange: Learning to CROSS exchange to solve realistic vehicle routing problems

no code implementations6 Jun 2022 Minjun Kim, Junyoung Park, Jinkyoo Park

Inspired by CE, we propose Neuro CE (NCE), a fundamental operator of learned meta-heuristic, to solve various VRPs while overcoming the limitations of CE (i. e., the expensive $\mathcal{O}(n^4)$ search cost).

Graph Neural Network

Meta-SysId: A Meta-Learning Approach for Simultaneous Identification and Prediction

no code implementations1 Jun 2022 Junyoung Park, Federico Berto, Arec Jamgochian, Mykel J. Kochenderfer, Jinkyoo Park

In this paper, we propose Meta-SysId, a meta-learning approach to model sets of systems that have behavior governed by common but unknown laws and that differentiate themselves by their context.

Meta-Learning regression +3

Sym-NCO: Leveraging Symmetricity for Neural Combinatorial Optimization

1 code implementation26 May 2022 Minsu Kim, Junyoung Park, Jinkyoo Park

Deep reinforcement learning (DRL)-based combinatorial optimization (CO) methods (i. e., DRL-NCO) have shown significant merit over the conventional CO solvers as DRL-NCO is capable of learning CO solvers less relying on problem-specific expert domain knowledge (heuristic method) and supervised labeled data (supervised learning method).

Combinatorial Optimization Traveling Salesman Problem

Input Convex Graph Neural Networks: An Application to Optimal Control and Design Optimization

no code implementations29 Sep 2021 Junyoung Park, Chihyeon Song, Jinkyoo Park

On the physical heat diffusion, we further apply ICGNN to solve a design optimization problem, which seeks to find the optimal heater allocations while considering the optimal operation of the heaters, by using a gradient-based method.

Decision Making

A molecular hypergraph convolutional network with functional group information

no code implementations29 Sep 2021 Junyoung Park, Fangying Chen, Jinkyoo Park

We show that our model is able to outperform other baseline methods for most of the datasets.

Property Prediction

An Interpretable Web-based Glioblastoma Multiforme Prognosis Prediction Tool using Random Forest Model

no code implementations30 Aug 2021 Yeseul Kim, Kyung Hwan Kim, Junyoung Park, Hong In Yoon, Wonmo Sung

Total 10, 4, and 13 features were extracted for best performing one-year survival/progression status RFC models and RSF model via the recursive feature elimination process.

Classification

ScheduleNet: Learn to solve multi-agent scheduling problems with reinforcement learning

no code implementations6 Jun 2021 Junyoung Park, Sanjar Bakhtiyar, Jinkyoo Park

We propose ScheduleNet, a RL-based real-time scheduler, that can solve various types of multi-agent scheduling problems.

Decision Making Graph Attention +4

Convergent Graph Solvers

1 code implementation ICLR 2022 Junyoung Park, Jinhyun Choo, Jinkyoo Park

We propose the convergent graph solver (CGS), a deep learning method that learns iterative mappings to predict the properties of a graph system at its stationary state (fixed point) with guaranteed convergence.

Graph Classification Graph Neural Network

Learning to schedule job-shop problems: Representation and policy learning using graph neural network and reinforcement learning

no code implementations2 Jun 2021 Junyoung Park, Jaehyeong Chun, Sang Hun Kim, Youngkook Kim, Jinkyoo Park

In solving the formulated problem, the proposed framework employs a GNN to learn that node features that embed the spatial structure of the JSSP represented as a graph (representation learning) and derive the optimum scheduling policy that maps the embedded node features to the best scheduling action (policy learning).

Decision Making Graph Neural Network +3

ScheduleNet: Learn to Solve MinMax mTSP Using Reinforcement Learning with Delayed Reward

no code implementations1 Jan 2021 Junyoung Park, Sanzhar Bakhtiyarov, Jinkyoo Park

From the RL perspective, Minmax mTSP raises several significant challenges, such as the cooperation of multiple workers and the need for a well-engineered reward function.

Combinatorial Optimization Graph Neural Network +2

Multi-step Estimation for Gradient-based Meta-learning

no code implementations8 Jun 2020 Jin-Hwa Kim, Junyoung Park, Yongseok Choi

To validate our method, we experiment on meta-transfer learning and few-shot learning tasks for multiple settings.

Few-Shot Learning Transfer Learning

Graph Neural Ordinary Differential Equations

1 code implementation18 Nov 2019 Michael Poli, Stefano Massaroli, Junyoung Park, Atsushi Yamashita, Hajime Asama, Jinkyoo Park

We introduce the framework of continuous--depth graph neural networks (GNNs).

Domain-Agnostic Few-Shot Classification by Learning Disparate Modulators

no code implementations ICLR 2020 Yongseok Choi, Junyoung Park, Subin Yi, Dong-Yeon Cho

Although few-shot learning research has advanced rapidly with the help of meta-learning, its practical usefulness is still limited because most of them assumed that all meta-training and meta-testing examples came from a single domain.

Classification Diversity +3

Discriminative Few-Shot Learning Based on Directional Statistics

no code implementations5 Jun 2019 Junyoung Park, Subin Yi, Yongseok Choi, Dong-Yeon Cho, Jiwon Kim

Metric-based few-shot learning methods try to overcome the difficulty due to the lack of training examples by learning embedding to make comparison easy.

Few-Shot Learning General Classification

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