Search Results for author: Weiqi Zhang

Found 9 papers, 5 papers with code

UDiFF: Generating Conditional Unsigned Distance Fields with Optimal Wavelet Diffusion

no code implementations10 Apr 2024 Junsheng Zhou, Weiqi Zhang, Baorui Ma, Kanle Shi, Yu-Shen Liu, Zhizhong Han

In this work, we present UDiFF, a 3D diffusion model for unsigned distance fields (UDFs) which is capable to generate textured 3D shapes with open surfaces from text conditions or unconditionally.

3D Shape Generation Image Generation

Missing Data Imputation with Graph Laplacian Pyramid Network

1 code implementation10 Apr 2023 Weiqi Zhang, Guanlve Li, Jianheng Tang, Jia Li, Fugee Tsung

Data imputation is a prevalent and important task due to the ubiquitousness of missing data.

Imputation

Quantifying Space-Time Load Shifting Flexibility in Electricity Markets

1 code implementation17 Mar 2023 Weiqi Zhang, Victor M. Zavala

The power grid is undergoing significant restructuring driven by the adoption of wind/solar power and the incorporation of new flexible technologies that can shift load in space and time (e. g., data centers, battery storage, and modular manufacturing).

Robust Attributed Graph Alignment via Joint Structure Learning and Optimal Transport

1 code implementation30 Jan 2023 Jianheng Tang, Weiqi Zhang, Jiajin Li, Kangfei Zhao, Fugee Tsung, Jia Li

As the graphs to be aligned are usually constructed from different sources, the inconsistency issues of structures and features between two graphs are ubiquitous in real-world applications.

Graph Embedding

Pricing and Remunerating Electricity Storage Flexibility Using Virtual Links

1 code implementation15 Apr 2022 Weiqi Zhang, Philip A. Tominac, Victor M. Zavala

Ambitious renewable portfolio standards motivate the incorporation of energy storage resources (ESR) as sources of flexibility.

Exploring the Impacts of Power Grid Signals on Data Center Operations using a Receding-Horizon Scheduling Model

no code implementations13 Apr 2022 Weiqi Zhang, Line A. Roald, Victor M. Zavala

An obstacle that arises here is the lack of computationally-tractable DC operation models that can capture objectives, constraints, and information flows that arise at the interface of DCs and the power grid.

Management Scheduling

Remunerating Space-Time, Load-Shifting Flexibility from Data Centers in Electricity Markets

no code implementations24 May 2021 Weiqi Zhang, Victor M. Zavala

Central to our study is the concept of virtual links, which provide non-physical pathways that can be used by DaCes to shift power loads (by shifting computing loads) across space and time.

Data Augmentation for Object Detection via Progressive and Selective Instance-Switching

1 code implementation2 Jun 2019 Hao Wang, Qilong Wang, Fan Yang, Weiqi Zhang, WangMeng Zuo

For guiding our IS to obtain better object performance, we explore issues of instance imbalance and class importance in datasets, which frequently occur and bring adverse effect on detection performance.

Data Augmentation Instance Segmentation +2

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