no code implementations • 31 Aug 2023 • Phuong Duy Huynh, Son Hoang Dau, XiaoDong Li, Phuc Luong, Emanuele Viterbo
The contract-code-based approach, while achieving very high accuracy, is not robust: first, the source codes of a majority of contracts on Ethereum are not available, and second, a Ponzi developer can fool a contract-code-based detection model by obfuscating the opcode or inventing a new profit distribution logic that cannot be detected (since these models were trained on existing Ponzi logics only).
no code implementations • 3 Apr 2023 • Jiaqi Ye, XiaoDong Li, Pangjing Wu, Feng Wang
Then, we design two different AP methods: frequency-based global method and state clustering-based local method, based on the prior optimal policy.
no code implementations • 11 Dec 2022 • XiaoDong Li, Pangjing Wu, Chenxin Zou, Qing Li
Designing an intelligent volume-weighted average price (VWAP) strategy is a critical concern for brokers, since traditional rule-based strategies are relatively static that cannot achieve a lower transaction cost in a dynamic market.
Hierarchical Reinforcement Learning
reinforcement-learning
+1
no code implementations • 2 Dec 2022 • XiaoDong Li, Chenxin Zou, Yi Cai, Yuelong Zhu
Winner of the game is thus considered to have better qualities.
no code implementations • 26 Nov 2022 • Yuan Sun, Su Nguyen, Dhananjay Thiruvady, XiaoDong Li, Andreas T. Ernst, Uwe Aickelin
Finally, we demonstrate that hybridising the machine learning-based variable ordering methods with traditional domain-based methods is beneficial.
no code implementations • 31 Oct 2022 • Dhananjay Thiruvady, Su Nguyen, Yuan Sun, Fatemeh Shiri, Nayyar Zaidi, XiaoDong Li
While a number of optimisation methods have been proposed to tackle the deterministic problem, the uncertainty associated with resource availability, an inevitable challenge in mining operations, has received less attention.
no code implementations • 18 Jul 2022 • Xiao Gan, Zixin Shu, Xinyan Wang, Dengying Yan, Jun Li, Shany ofaim, Réka Albert, XiaoDong Li, Baoyan Liu, Xuezhong Zhou, Albert-László Barabási
We validate our framework with real-world hospital patient data by showing that (1) shorter network distance between symptoms of inpatients correlates with higher relative risk (co-occurrence), and (2) herb-symptom network proximity is indicative of patients' symptom recovery rate after herbal treatment.
no code implementations • 20 Jun 2022 • Mengguan Pan, Peng Liu, Shengheng Liu, Wangdong Qi, Yongming Huang, Xiaohu You, Xinghua Jia, XiaoDong Li
Secondly, based on the deployment reality that 5G picocell gNBs only have a small-scale antenna array but have a large signal bandwidth, the proposed scheme decouples the estimation of time-of-arrival (TOA) and direction-of-arrival (DOA) to reduce the huge complexity induced by two-dimensional joint processing.
no code implementations • 14 Feb 2022 • Chengshi Zheng, Wenzhe Liu, Andong Li, Yuxuan Ke, XiaoDong Li
To improve the performance of traditional low-latency speech enhancement algorithms, a deep filter-bank equalizer (FBE) framework was proposed, which integrated a deep learning-based subband noise reduction network with a deep learning-based shortened digital filter mapping network.
no code implementations • 3 Feb 2022 • Linjuan Cheng, Chengshi Zheng, Andong Li, Yuquan Wu, Renhua Peng, XiaoDong Li
In hands-free communication system, the coupling between loudspeaker and microphone generates echo signal, which can severely influence the quality of communication.
no code implementations • 8 Jan 2022 • Xin Jin, Hao Lou, Huang Heng, XiaoDong Li, Shuai Cui, Xiaokun Zhang, Xiqiao Li
In the tasks of image aesthetic quality evaluation, it is difficult to reach both the high score area and low score area due to the normal distribution of aesthetic datasets.
1 code implementation • 15 Dec 2021 • Hirad Assimi, Frank Neumann, Markus Wagner, XiaoDong Li
Topology optimisation of trusses can be formulated as a combinatorial and multi-modal problem in which locating distinct optimal designs allows practitioners to choose the best design based on their preferences.
1 code implementation • 8 Dec 2021 • Yunzhuang Shen, Yuan Sun, XiaoDong Li, Andrew Eberhard, Andreas Ernst
In each iteration of CG, our MLPH leverages an ML model to predict the optimal solution of the pricing problem, which is then used to guide a sampling method to efficiently generate multiple high-quality columns.
no code implementations • 18 Aug 2021 • Qiang Zhao, Bin Chen, Hang Xu, Yike Ma, XiaoDong Li, Bailan Feng, Chenggang Yan, Feng Dai
In this paper, we first identify that spherical rectangles are unbiased bounding boxes for objects in spherical images, and then propose an analytical method for IoU calculation without any approximations.
1 code implementation • 14 Aug 2021 • Xin Jin, Zhonglan Li, Ke Liu, Dongqing Zou, XiaoDong Li, Xingfan Zhu, Ziyin Zhou, Qilong Sun, Qingyu Liu
Classification sub-module supplies classifying of images according to the eras, nationalities and garment types; Parsing sub-network supplies the semantic for person contours, clothing and background in the image to achieve more accurate colorization of clothes and persons and prevent color overflow.
1 code implementation • 23 Jul 2021 • Mohammad Nabi Omidvar, Danial Yazdani, Juergen Branke, XiaoDong Li, Shengxiang Yang, Xin Yao
This document describes the generalized moving peaks benchmark (GMPB) and how it can be used to generate problem instances for continuous large-scale dynamic optimization problems.
1 code implementation • 22 Jul 2021 • Xingmei Lou, Yu Hu, XiaoDong Li
Under the Gaussian polytree models, we study sufficient conditions on the sample sizes for the well-known Chow-Liu algorithm to exactly recover both the skeleton and the equivalence class of the polytree, which is uniquely represented by a CPDAG.
1 code implementation • 2 Jul 2021 • Yunzhuang Shen, Yuan Sun, Andrew Eberhard, XiaoDong Li
This paper proposes a novel primal heuristic for Mixed Integer Programs, by employing machine learning techniques.
2 code implementations • 11 Jun 2021 • Danial Yazdani, Juergen Branke, Mohammad Nabi Omidvar, XiaoDong Li, Changhe Li, Michalis Mavrovouniotis, Trung Thanh Nguyen, Shengxiang Yang, Xin Yao
This document describes the Generalized Moving Peaks Benchmark (GMPB) that generates continuous dynamic optimization problem instances.
no code implementations • 19 Feb 2021 • Weixin Meng, Chengshi Zheng, XiaoDong Li
The proposed beamformer can be regarded as a generalization of the minimum power distortionless response beamformer and its improved variations.
no code implementations • 19 Dec 2020 • Xin Jin, Hongyu Zhang, XiaoDong Li, Haoyang Yu, Beisheng Liu, Shujiang Xie, Amit Kumar Singh, Yujie Li
To make this algorithm easy to use, we also designed and implemented an efficient general blind computing library based on CMP-SWHE.
no code implementations • 18 Dec 2020 • Yuan Sun, Samuel Esler, Dhananjay Thiruvady, Andreas T. Ernst, XiaoDong Li, Kerri Morgan
We investigate an important research question for solving the car sequencing problem, that is, which characteristics make an instance hard to solve?
no code implementations • 15 Oct 2020 • Xin Jin, Xiqiao Li, Heng Huang, XiaoDong Li, Xinghui Zhou
In this paper, we propose a Deep Drift-Diffusion (DDD) model inspired by psychologists to predict aesthetic score distribution from images.
no code implementations • 30 Apr 2020 • Lihua Lei, XiaoDong Li, Xingmei Lou
We study the hierarchy of communities in real-world networks under a generic stochastic block model, in which the connection probabilities are structured in a binary tree.
1 code implementation • 15 Jun 2016 • XiaoDong Li, Shuyang Ling, Thomas Strohmer, Ke Wei
To the best of our knowledge, our algorithm is the first blind deconvolution algorithm that is numerically efficient, robust against noise, and comes with rigorous recovery guarantees under certain subspace conditions.
Information Theory Information Theory
1 code implementation • 14 Jan 2010 • Zihan Zhou, XiaoDong Li, John Wright, Emmanuel Candes, Yi Ma
We further prove that the solution to a related convex program (a relaxed PCP) gives an estimate of the low-rank matrix that is simultaneously stable to small entrywise noise and robust to gross sparse errors.
Information Theory Information Theory