Search Results for author: Minghua Chen

Found 17 papers, 2 papers with code

Optimizing Two-Truck Platooning with Deadlines

no code implementations4 Oct 2022 Wenjie Xu, Titing Cui, Minghua Chen

The FPTAS can achieve a fuel consumption within a ratio of $(1+\epsilon)$ to the optimal (for any $\epsilon>0$) with a time complexity polynomial in the size of the transportation network and $1/\epsilon$.

Vocal Bursts Valence Prediction

Key frames assisted hybrid encoding for photorealistic compressive video sensing

no code implementations26 Jul 2022 Honghao Huang, Jiajie Teng, Yu Liang, Chengyang Hu, Minghua Chen, Sigang Yang, Hongwei Chen

Snapshot compressive imaging (SCI) encodes high-speed scene video into a snapshot measurement and then computationally makes reconstructions, allowing for efficient high-dimensional data acquisition.

Optical Flow Estimation

DeepOPF-AL: Augmented Learning for Solving AC-OPF Problems with Multiple Load-Solution Mappings

no code implementations7 Jun 2022 Xiang Pan, Wanjun Huang, Minghua Chen, Steven H. Low

The existence of multiple load-solution mappings of non-convex AC-OPF problems poses a fundamental challenge to deep neural network (DNN) schemes.

Competitive Prediction-Aware Online Algorithms for Energy Generation Scheduling in Microgrids

no code implementations24 May 2022 Ali Menati, Sid Chi-Kin Chau, Minghua Chen

In this paper, we exploit the structure of information in the prediction window to design a novel prediction-aware online algorithm for energy generation scheduling in microgrids.

Decision Making Scheduling

Learning-based AC-OPF Solvers on Realistic Network and Realistic Loads

no code implementations19 May 2022 Tsun Ho Aaron Cheung, Min Zhou, Minghua Chen

Deep learning approaches for the Alternating Current-Optimal Power Flow (AC-OPF) problem are under active research in recent years.

Ensuring DNN Solution Feasibility for Optimization Problems with Convex Constraints and Its Application to DC Optimal Power Flow Problems

no code implementations15 Dec 2021 Tianyu Zhao, Xiang Pan, Minghua Chen, Steven H. Low

We systematically calibrate inequality constraints used in DNN training, thereby anticipating prediction errors and ensuring the resulting solutions remain feasible.

Principle-driven Fiber Transmission Model based on PINN Neural Network

no code implementations24 Aug 2021 Yubin Zang, Zhenming Yu, Kun Xu, Xingzeng Lan, Minghua Chen, Sigang Yang, Hongwei Chen

Instead of adopting input signals and output signals which are calculated by SSFM algorithm in advance before training, this principle-driven PINN based fiber model adopts frames of time and distance as its inputs and the corresponding real and imaginary parts of NLSE solutions as its outputs.

Optimal Online Algorithms for Peak-Demand Reduction Maximization with Energy Storage

no code implementations11 May 2021 Yanfang Mo, Qiulin Lin, Minghua Chen, Si-Zhao Joe Qin

In this paper, we propose an optimal online algorithm that achieves the best competitive ratio, following the idea of maintaining a constant ratio between the online and the optimal offline peak-reduction performance.

Decision Making

DeepOPF-V: Solving AC-OPF Problems Efficiently

1 code implementation22 Mar 2021 Wanjun Huang, Xiang Pan, Minghua Chen, Steven H. Low

AC optimal power flow (AC-OPF) problems need to be solved more frequently in the future to maintain stable and economic power system operation.

Computational Efficiency

The energy technique for the six-step BDF method

no code implementations17 Jul 2020 Georgios Akrivis, Minghua Chen, Fan Yu, Zhi Zhou

In combination with the Grenander--Szeg\"o theorem, we observe that a relaxed positivity condition on multipliers, milder than the basic %fundamental requirement of the Nevanlinna--Odeh multipliers that the sum of the absolute values of their components is strictly less than $1$, makes the energy technique applicable to the stability analysis of BDF methods for parabolic equations with selfadjoint elliptic part.

Numerical Analysis Numerical Analysis

DeepOPF: A Feasibility-Optimized Deep Neural Network Approach for AC Optimal Power Flow Problems

no code implementations2 Jul 2020 Xiang Pan, Minghua Chen, Tianyu Zhao, Steven H. Low

High percentage penetrations of renewable energy generations introduce significant uncertainty into power systems.

DeepOPF: A Deep Neural Network Approach for Security-Constrained DC Optimal Power Flow

no code implementations30 Oct 2019 Xiang Pan, Tianyu Zhao, Minghua Chen, Shengyu Zhang

We then directly reconstruct the phase angles from the generations and loads by using the power flow equations.

Electro-optical Neural Networks based on Time-stretch Method

no code implementations13 Sep 2019 Yubin Zang, Minghua Chen, Sigang Yang, Hongwei Chen

In this paper, a novel architecture of electro-optical neural networks based on the time-stretch method is proposed and numerically simulated.

Efficient and Robust Equilibrium Strategies of Utilities in Day-ahead Market with Load Uncertainty

no code implementations12 Sep 2019 Tianyu Zhao, Hanling Yi, Minghua Chen, Chenye Wu, Yunjian Xu

We consider the scenario where $N$ utilities strategically bid for electricity in the day-ahead market and balance the mismatch between the committed supply and actual demand in the real-time market, with uncertainty in demand and local renewable generation in consideration.

DeepOPF: Deep Neural Network for DC Optimal Power Flow

no code implementations11 May 2019 Xiang Pan, Tianyu Zhao, Minghua Chen

DeepOPF is inspired by the observation that solving DC-OPF for a given power network is equivalent to characterizing a high-dimensional mapping between the load inputs and the dispatch and transmission decisions.

Systems and Control

Device-to-Device Load Balancing for Cellular Networks

1 code implementation7 Oct 2017 Lei Deng, Yinghui He, Ying Zhang, Minghua Chen, Zongpeng Li, Jack Y. B. Lee, Ying Jun Zhang, Lingyang Song

The idea is to shift traffic from a congested cell to its adjacent under-utilized cells by leveraging inter-cell D2D communication, so that the traffic can be served without using extra spectrum, effectively improving the spectrum temporal efficiency.

Networking and Internet Architecture

High-speed real-time single-pixel microscopy based on Fourier sampling

no code implementations15 Jun 2016 Qiang Guo, Hongwei Chen, Yuxi Wang, Yong Guo, Peng Liu, Xiurui Zhu, Zheng Cheng, Zhenming Yu, Minghua Chen, Sigang Yang, Shizhong Xie

However, according to CS theory, image reconstruction is an iterative process that consumes enormous amounts of computational time and cannot be performed in real time.

Image Reconstruction Image Restoration +1

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