Explanipedia

Physicochemical properties and biocompatibility of 3D printed PVDF-TrFE-CPS composite bone scaffolds with piezoelectric properties Open

Y.X. Chen, Guangteng Zhang, Dongdong Ge, Meichen Wang, Tao Wu , et al. · 2025

Ferric Tannate-Enhanced Electrochemical Conditioning Process for Improving Sludge Dewaterability Open

Yalin Yu, Junkun Feng, Nanwen Zhu, Dongdong Ge · 2025

Sludge dewatering is a key step in the overall process of sludge treatment and disposal. In this study, ferric tannate was synthesized by chemically complexing tannic acid with Fe2(SO4)3 under various conditions and then was innovatively e…

BenLOC: A Benchmark for Learning to Configure MIP Optimizers Open

Hongpei Li, Zexin He, Yufei Wang, Wenting Tu, Shanwen Pu , et al. · 2025

The automatic configuration of Mixed-Integer Programming (MIP) optimizers has become increasingly critical as the large number of configurations can significantly affect solver performance. Yet the lack of standardized evaluation framework…

Solver-Informed RL: Grounding Large Language Models for Authentic Optimization Modeling Open

Yitian Chen, Jingfan Xia, S. Shao, Dongdong Ge, Yinyu Ye · 2025

Optimization modeling is fundamental to decision-making across diverse domains. Despite progress in automating optimization formulation from natural language descriptions, Large Language Models (LLMs) often struggle to generate formally co…

Does Construction of High-Standard Farmland Improve Total Factor Productivity of Grain? Evidence from China, 2000–2021 Open

Mande Zhu, Dongdong Ge, Menghan Wang, Saffa Mohamed Massaquoi, Zhixin Wu · 2025

This study investigates the impact of China’s construction of high-standard farmland (CHSF) initiatives on grain productivity, focusing on total factor productivity growth of grain (TFPG) from 2000 to 2021. Using a continuous Difference-in…

Investigation of oral microbiome composition in elderly Chinese patients with hypertension: a cross-sectional study Open

Xin Chen, W Lin, Fengwei Zhang, Liqiang Guo, Ge Han , et al. · 2025

This study identified distinct oral microbiota in elderly hypertensive patients, highlighting the role of the oral microbiome in hypertension pathogenesis.

Does Financial Credit Obtained From Financial Institutions Influence Agricultural Productivity While Balancing Economic Growth and Sustainability? Empirical Evidence From Sierra Leone Using the VAR Approach Open

Saffa Mohamed Massaquoi, Mande Zhu, Dongdong Ge, Abdul Salami Bah · 2025

Agriculture dominates Sierra Leone’s economy, employing 75% of the labor force and contributing 64.5% of GDP. Despite its centrality, financial constraints persistently impede sectoral growth, necessitating evidence-based interventions. Th…

Beyond $\mathcal{O}(\sqrt{T})$ Regret: Decoupling Learning and Decision-making in Online Linear Programming Open

Wenzhi Gao, Dongdong Ge, Chenyu Xue, Chunlin Sun, Yinyu Ye · 2025

Online linear programming plays an important role in both revenue management and resource allocation, and recent research has focused on developing efficient first-order online learning algorithms. Despite the empirical success of first-or…

A Column-Generation-Based Framework for Dynamic Network Optimization with Service Customization Open

Kun Liang, Chuwen Zhang, Jinsong Liu, Dongdong Ge, Zizhuo Wang · 2025

Accelerating Low-Rank Factorization-Based Semidefinite Programming Algorithms on GPU Open

Qiushi Han, Zhenwei Lin, Han‐Wen Liu, Caihua Chen, Qi Deng , et al. · 2024

In this paper, we address a long-standing challenge: how to achieve both efficiency and scalability in solving semidefinite programming problems. We propose breakthrough acceleration techniques for a wide range of low-rank factorization-ba…

ORLM: A Customizable Framework in Training Large Models for Automated Optimization Modeling Open

Zhengyang Tang, Chenyu Huang, Xin Zheng, Shixi Hu, Zizhuo Wang , et al. · 2024

Optimization modeling plays a critical role in the application of Operations Research (OR) tools to address real-world problems, yet they pose challenges and require extensive expertise from OR experts. With the advent of large language mo…

Sketched Newton Value Iteration for Large-Scale Markov Decision Processes Open

Jinsong Liu, Chenghan Xie, Qi Deng, Dongdong Ge, Yinyu Ye · 2024

Value Iteration (VI) is one of the most classic algorithms for solving Markov Decision Processes (MDPs), which lays the foundations for various more advanced reinforcement learning algorithms, such as Q-learning. VI may take a large number…

Trust Region Methods for Nonconvex Stochastic Optimization beyond Lipschitz Smoothness Open

Chenghan Xie, Chenxi Li, Chuwen Zhang, Qi Deng, Dongdong Ge , et al. · 2024

In many important machine learning applications, the standard assumption of having a globally Lipschitz continuous gradient may fail to hold. This paper delves into a more general (L0, L1)-smoothness setting, which gains particular signifi…

A Low-Rank ADMM Splitting Approach for Semidefinite Programming Open

Qiushi Han, Chenxi Li, Zhenwei Lin, Caihua Chen, Qi Deng , et al. · 2024

We introduce a new first-order method for solving general semidefinite programming problems, based on the alternating direction method of multipliers (ADMM) and a matrix-splitting technique. Our algorithm has an advantage over the Burer-Mo…

Decoupling Learning and Decision-Making: Breaking the $\mathcal{O}(\sqrt{T})$ Barrier in Online Resource Allocation with First-Order Methods Open

Wenzhi Gao, Chunlin Sun, Chenyu Xue, Dongdong Ge, Yinyu Ye · 2024

Online linear programming plays an important role in both revenue management and resource allocation, and recent research has focused on developing efficient first-order online learning algorithms. Despite the empirical success of first-or…

Nonlinear modeling and interior point algorithm for the material flow optimization in petroleum refinery Open

Fenglian Dong, Dongdong Ge, Lei Yang, Zhiwei Wei, Sichen Guo , et al. · 2024

This paper established a mathematical model with nonconvex bilinear terms. It formulated the complex material flow in the petroleum refinery scenario based on the concept of the "P model". The mathematical model described the nonlinear co…

Dispatching Automated Guided Vehicles Using Efficient Data-Driven Optimization Open

Hengle Qin, Xiangjie Zhao, Jinsong Liu, Dongdong Ge, Ruihao Zhu · 2024

Early Birds versus Last-Minute Arrivals: Empirical Evidence and Theoretical Analysis of Arrival Time Queueing Game Open

Xiangjie Zhao, Yichuan Ding, Dongdong Ge, Xiaoqing Xie · 2024

cuPDLP-C: A Strengthened Implementation of cuPDLP for Linear Programming by C language Open

Haihao Lu, Jinwen Yang, Haodong Hu, Qi Huangfu, Jinsong Liu , et al. · 2023

A recent GPU implementation of the Restarted Primal-Dual Hybrid Gradient Method for Linear Programming was proposed in Lu and Yang (2023). Its computational results demonstrate the significant computational advantages of the GPU-based firs…

Beyond Nonconvexity: A Universal Trust-Region Method with New Analyses Open

Yuntian Jiang, Chang He, Chuwen Zhang, Dongdong Ge, Bo Jiang , et al. · 2023

The trust-region (TR) method is renowned historically for its robustness in nonconvex problems and extraordinary numerical performance, but the study of its performance in convex optimization is somehow limited. This paper complements the …

Trust Region Methods For Nonconvex Stochastic Optimization Beyond Lipschitz Smoothness Open

Chenghan Xie, Chenxi Li, Chuwen Zhang, Qi Deng, Dongdong Ge , et al. · 2023

In many important machine learning applications, the standard assumption of having a globally Lipschitz continuous gradient may fail to hold. This paper delves into a more general $(L_0, L_1)$-smoothness setting, which gains particular sig…

A Homogenization Approach for Gradient-Dominated Stochastic Optimization Open

Jiyuan Tan, Chenyu Xue, Chuwen Zhang, Qi Deng, Dongdong Ge , et al. · 2023

Gradient dominance property is a condition weaker than strong convexity, yet sufficiently ensures global convergence even in non-convex optimization. This property finds wide applications in machine learning, reinforcement learning (RL), a…

Learning to Pivot as a Smart Expert Open

Tianhao Liu, Shanwen Pu, Dongdong Ge, Yinyu Ye · 2023

Linear programming has been practically solved mainly by simplex and interior point methods. Compared with the weakly polynomial complexity obtained by the interior point methods, the existence of strongly polynomial bounds for the length …

Effects of Biochar on Sludge Composting Open

Dong Li, Dongdong Ge, Yuqing Sun, Daniel C.W. Tsang · 2023

Sewage sludge will pose a serious threat to the environment and human health. The composting process can recycle sludge effectively, but it still has some drawbacks. Many studies suggest that biochar addition in sludge composting can effec…

Homogeneous Second-Order Descent Framework: A Fast Alternative to Newton-Type Methods Open

Chang He, Yuntian Jiang, Chuwen Zhang, Dongdong Ge, Bo Jiang , et al. · 2023

This paper proposes a homogeneous second-order descent framework (HSODF) for nonconvex and convex optimization based on the generalized homogeneous model (GHM). In comparison to the Newton steps, the GHM can be solved by extremal symmetric…

Research on Spatial-Temporal Characteristics and Affecting Factors of Agricultural Green Total Factor Productivity in Jiangxi Province Open

Zhen Wang, Jiayi Zhu, Xieqihua Liu, Dongdong Ge, Bin Liu · 2023

Increasing green total factor productivity is the key to achieving green development in agriculture. This study measured the green total factor productivity of Jiangxi’s agriculture, and its regional and temporal evolution characteristics …

Data-driven Mixed Integer Optimization through Probabilistic Multi-variable Branching Open

Yanguang Chen, Wenzhi Gao, Dongdong Ge, Yinyu Ye · 2023

In this paper, we propose a Pre-trained Mixed Integer Optimization framework (PreMIO) that accelerates online mixed integer program (MIP) solving with offline datasets and machine learning models. Our method is based on a data-driven multi…

Research on Spatial-temporal Characteristics and Affecting Factors of Agricultural Green Total Factor Productivity in Jiangxi Province Open

Zhen Wang, Jiayi Zhu, Xieqihua Liu, Dongdong Ge, Bin Liu · 2023

Increasing green total factor productivity is the key to achieving green development in agriculture. This study measured the green total factor productivity of Jiangxi’s agriculture, and its regional and temporal evolution characteristics …

The Impact of Rural Households’ Part-Time Farming on Grain Output: Promotion or Inhibition? Open

Dongdong Ge, Xiaolan Kang, Xian Liang, Fangting Xie · 2023

Given the prevalence of part-time farming behaviors in rural households, studying the impact of part-time farming behaviors on grain output is of great practical significance. Using a panel dataset of 5629 Chinese national rural fixed obse…

Stochastic Dimension-reduced Second-order Methods for Policy Optimization Open

Jinsong Liu, Chenghan Xie, Qi Deng, Dongdong Ge, Yinyu Ye · 2023

In this paper, we propose several new stochastic second-order algorithms for policy optimization that only require gradient and Hessian-vector product in each iteration, making them computationally efficient and comparable to policy gradie…

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