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151. Top-N Recommendation in P2P Lending: A Hybrid Graph Ranking Using Investor Profile

Author

Liu, Yuhang, Ma, Huifang, Jiang, Yanbin, Li, Zhixin, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Yang, Haiqin, editor, Pasupa, Kitsuchart, editor, Leung, Andrew Chi-Sing, editor, Kwok, James T., editor, Chan, Jonathan H., editor, and King, Irwin, editor

Published
2020
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152. Exploring User Trust and Reliability for Recommendation: A Hypergraph Ranking Approach

Author

Jiang, Yanbin, Ma, Huifang, Liu, Yuhang, Li, Zhixin, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Yang, Haiqin, editor, Pasupa, Kitsuchart, editor, Leung, Andrew Chi-Sing, editor, Kwok, James T., editor, Chan, Jonathan H., editor, and King, Irwin, editor

Published
2020
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153. An Overlapping Community Detection with Subspaces on Double-Views

Author

Chang, Yang, Ma, Huifang, Su, Yun, Li, Zhixin, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Yang, Haiqin, editor, Pasupa, Kitsuchart, editor, Leung, Andrew Chi-Sing, editor, Kwok, James T., editor, Chan, Jonathan H., editor, and King, Irwin, editor

Published
2020
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154. Multi-Source Remote Sensing Images Semantic Segmentation Based on Differential Feature Attention Fusion.

Author

Zhang, Di, Yue, Peicheng, Yan, Yuhang, Niu, Qianqian, Zhao, Jiaqi, and Ma, Huifang

Subjects
REMOTE sensing, IMAGE segmentation, FEATURE extraction, MARKOV random fields, ALGORITHMS
Abstract

Multi-source remote sensing image semantic segmentation can provide more detailed feature attribute information, making it an important research field for remote sensing intelligent interpretation. However, due to the complexity of remote sensing scenes and the feature redundancy caused by multi-source fusion, multi-source remote sensing semantic segmentation still faces some challenges. In this paper, we propose a multi-source remote sensing semantic segmentation method based on differential feature attention fusion (DFAFNet) to alleviate the problems of difficult multi-source discriminant feature extraction and the poor quality of decoder feature reconstruction. Specifically, we achieve effective fusion of multi-source remote sensing features through a differential feature fusion module and unsupervised adversarial loss. Additionally, we improve decoded feature reconstruction without introducing additional parameters by employing an attention-guided upsampling strategy. Experimental results show that our method achieved 2.8% and 2.0% mean intersection over union (mIoU) score improvements compared with the competitive baseline algorithm on the available US3D and ISPRS Potsdam datasets, respectively. [ABSTRACT FROM AUTHOR]

Published
2024
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156. Adaptive Testing for Alphas in Conditional Factor Models with High Dimensional Assets.

Author

Ma, Huifang, Feng, Long, Wang, Zhaojun, and Bao, Jigang

Subjects
ADAPTIVE testing, PRICES, SPLINES, HYPOTHESIS, SECURITIES
Abstract

This article focuses on testing for the presence of alpha in time-varying factor pricing models, specifically when the number of securities N is larger than the time dimension of the return series T. We introduce a maximum-type test that performs well in scenarios where the alternative hypothesis is sparse. We establish the limit null distribution of the proposed maximum-type test statistic and demonstrate its asymptotic independence from the sum-type test statistics proposed by Ma et al. Additionally, we propose an adaptive test by combining the maximum-type test and sum-type test, and we show its advantages under various alternative hypotheses through simulation studies and two real data applications. [ABSTRACT FROM AUTHOR]

Published
2024
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167. High-order superlattices by rolling up van der Waals heterostructures

Author

Zhao, Bei, Wan, Zhong, Liu, Yuan, Xu, Junqing, Yang, Xiangdong, Shen, Dingyi, Zhang, Zucheng, Guo, Chunhao, Qian, Qi, Li, Jia, Wu, Ruixia, Lin, Zhaoyang, Yan, Xingxu, Li, Bailing, Zhang, Zhengwei, Ma, Huifang, and Li, Bo

Subjects
Research, Properties, Advanced materials -- Properties, Van der Waals forces -- Research, Materials research, Superlattices -- Properties, Superlattices as materials -- Properties
Abstract

Author(s): Bei Zhao [sup.1] , Zhong Wan [sup.2] , Yuan Liu [sup.1] [sup.3] , Junqing Xu [sup.4] , Xiangdong Yang [sup.1] , Dingyi Shen [sup.1] , Zucheng Zhang [sup.1] , [...], Two-dimensional (2D) materials.sup.1,2 and the associated van der Waals (vdW) heterostructures.sup.3-7 have provided great flexibility for integrating distinct atomic layers beyond the traditional limits of lattice-matching requirements, through layer-by-layer mechanical restacking or sequential synthesis. However, the 2D vdW heterostructures explored so far have been usually limited to relatively simple heterostructures with a small number of blocks.sup.8-18. The preparation of high-order vdW superlattices with larger number of alternating units is exponentially more difficult, owing to the limited yield and material damage associated with each sequential restacking or synthesis step.sup.8-29. Here we report a straightforward approach to realizing high-order vdW superlattices by rolling up vdW heterostructures. We show that a capillary-force-driven rolling-up process can be used to delaminate synthetic SnS.sub.2/WSe.sub.2 vdW heterostructures from the growth substrate and produce SnS.sub.2/WSe.sub.2 roll-ups with alternating monolayers of WSe.sub.2 and SnS.sub.2, thus forming high-order SnS.sub.2/WSe.sub.2 vdW superlattices. The formation of these superlattices modulates the electronic band structure and the dimensionality, resulting in a transition of the transport characteristics from semiconducting to metallic, from 2D to one-dimensional (1D), with an angle-dependent linear magnetoresistance. This strategy can be extended to create diverse 2D/2D vdW superlattices, more complex 2D/2D/2D vdW superlattices, and beyond-2D materials, including three-dimensional (3D) thin-film materials and 1D nanowires, to generate mixed-dimensional vdW superlattices, such as 3D/2D, 3D/2D/2D, 1D/2D and 1D/3D/2D vdW superlattices. This study demonstrates a general approach to producing high-order vdW superlattices with widely variable material compositions, dimensions, chirality and topology, and defines a rich material platform for both fundamental studies and technological applications. A simple but flexible technique based on a capillary-force-driven rolling-up process produces high-order van der Waals superlattices that are hard to produce with existing fabrication techniques.

Published
2021
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172. Effectively Classify Short Texts with Sparse Representation Using Entropy Weighted Constraint

Author

Tuo, Ting, Ma, Huifang, Li, Zhixin, Lin, Xianghong, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Douligeris, Christos, editor, Karagiannis, Dimitris, editor, and Apostolou, Dimitris, editor

Published
2019
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173. Leveraging User Preferences for Community Search via Attribute Subspace

Author

Liu, Haijiao, Ma, Huifang, Chang, Yang, Li, Zhixin, Wu, Wenjuan, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Douligeris, Christos, editor, Karagiannis, Dimitris, editor, and Apostolou, Dimitris, editor

Published
2019
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174. Enhancing Graph-Based Keywords Extraction with Node Association

Author

Ma, Huifang, Wang, Shuang, Li, Miao, Li, Ning, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Douligeris, Christos, editor, Karagiannis, Dimitris, editor, and Apostolou, Dimitris, editor

Published
2019
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175. Effectively Representing Short Text via the Improved Semantic Feature Space Mapping

Author

Tuo, Ting, Ma, Huifang, Liu, Haijiao, Wei, Jiahui, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, U., Leong Hou, editor, and Lauw, Hady W., editor

Published
2019
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176. SBRNE: An Improved Unified Framework for Social and Behavior Recommendations with Network Embedding

Author

Zhao, Weizhong, Ma, Huifang, Li, Zhixin, Ao, Xiang, Li, Ning, Hutchison, David, Editorial Board Member, Kanade, Takeo, Editorial Board Member, Kittler, Josef, Editorial Board Member, Kleinberg, Jon M., Editorial Board Member, Mattern, Friedemann, Editorial Board Member, Mitchell, John C., Editorial Board Member, Naor, Moni, Editorial Board Member, Pandu Rangan, C., Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Terzopoulos, Demetri, Editorial Board Member, Tygar, Doug, Editorial Board Member, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Li, Guoliang, editor, Yang, Jun, editor, Gama, Joao, editor, Natwichai, Juggapong, editor, and Tong, Yongxin, editor

Published
2019
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177. Short Text Similarity Measurement Based on Coupled Semantic Relation and Strong Classification Features

Author

Ma, Huifang, Liu, Wen, Li, Zhixin, Lin, Xianghong, Hutchison, David, Editorial Board Member, Kanade, Takeo, Editorial Board Member, Kittler, Josef, Editorial Board Member, Kleinberg, Jon M., Editorial Board Member, Mattern, Friedemann, Editorial Board Member, Mitchell, John C., Editorial Board Member, Naor, Moni, Editorial Board Member, Pandu Rangan, C., Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Terzopoulos, Demetri, Editorial Board Member, Tygar, Doug, Editorial Board Member, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Yang, Qiang, editor, Zhou, Zhi-Hua, editor, Gong, Zhiguo, editor, Zhang, Min-Ling, editor, and Huang, Sheng-Jun, editor

Published
2019
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179. Controllable Synthesis of WSe2–WS2Lateral Heterostructures via Atomic Substitution

Author

Zhang, Shunhui, Liu, Hang, Zhang, Fen, Zheng, Xiaoming, Zhang, Xiangzhe, Zhang, Baihui, Zhang, Tian, Ao, Zhikang, Zhang, Xuyang, Lan, Xiang, Yang, Xiangdong, Zhong, Mianzeng, Li, Jia, Li, Bo, Ma, Huifang, Duan, Xidong, He, Jun, and Zhang, Zhengwei

Abstract

The atomic substitution in two-dimensional (2D) materials is propitious to achieving compositionally engineered semiconductor heterostructures. However, elucidating the mechanism and developing methods to synthesize 2D heterostructures with atomic-scale precision are crucial. Here, we demonstrate the synthesis of monolayer WSe2–WS2heterostructures with a relatively sharp interface from monolayer WSe2using a chalcogen atom-exchange synthesis route at high temperatures for short periods. The substitution was initiated at the edges of monolayer WSe2and the lateral diffuse along the heterointerface, and the reaction can be controlled by the precise reaction time and temperature. The lateral heterostructure and substitution process are studied by Raman and photoluminescence (PL) spectroscopies, electron microscopy, and device characterization, revealing a possible mechanism of strain-induced transformation. Our findings demonstrate a highly controllable synthesis of 2D layered materials through atom substitutional chemistry and provide a simple route to control the atomic structure.

Published
2024
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190. Microblog Hot Event Detection Based on Restart Random Walk and Modularity

Author

Li, XiaoHong, Gong, JiHeng, Ma, Yuyin, Ma, HuiFang, Qin, Na, Rannenberg, Kai, Editor-in-Chief, Sakarovitch, Jacques, Series Editor, Goedicke, Michael, Series Editor, Tatnall, Arthur, Series Editor, Neuhold, Erich J., Series Editor, Pras, Aiko, Series Editor, Tröltzsch, Fredi, Series Editor, Pries-Heje, Jan, Series Editor, Whitehouse, Diane, Series Editor, Reis, Ricardo, Series Editor, Furnell, Steven, Series Editor, Furbach, Ulrich, Series Editor, Winckler, Marco, Series Editor, Rauterberg, Matthias, Series Editor, Shi, Zhongzhi, editor, Mercier-Laurent, Eunika, editor, and Li, Jiuyong, editor

Published
2018
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191. Short Text Feature Extraction via Node Semantic Coupling and Graph Structures

Author

Ma, Huifang, Liu, Xiaoqian, Ma, Lan, Hu, Yulin, Rannenberg, Kai, Editor-in-Chief, Sakarovitch, Jacques, Series Editor, Goedicke, Michael, Series Editor, Tatnall, Arthur, Series Editor, Neuhold, Erich J., Series Editor, Pras, Aiko, Series Editor, Tröltzsch, Fredi, Series Editor, Pries-Heje, Jan, Series Editor, Whitehouse, Diane, Series Editor, Reis, Ricardo, Series Editor, Furnell, Steven, Series Editor, Furbach, Ulrich, Series Editor, Winckler, Marco, Series Editor, Rauterberg, Matthias, Series Editor, Shi, Zhongzhi, editor, Mercier-Laurent, Eunika, editor, and Li, Jiuyong, editor

Published
2018
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192. A Texture Synthesis Steganography Scheme Based on Super-Pixel Structure and SVM

Author

Wei, Weiyi, A, Chengfeng, Wang, Lizhao, Ma, Huifang, Rannenberg, Kai, Editor-in-Chief, Sakarovitch, Jacques, Series Editor, Goedicke, Michael, Series Editor, Tatnall, Arthur, Series Editor, Neuhold, Erich J., Series Editor, Pras, Aiko, Series Editor, Tröltzsch, Fredi, Series Editor, Pries-Heje, Jan, Series Editor, Whitehouse, Diane, Series Editor, Reis, Ricardo, Series Editor, Furnell, Steven, Series Editor, Furbach, Ulrich, Series Editor, Winckler, Marco, Series Editor, Rauterberg, Matthias, Series Editor, Shi, Zhongzhi, editor, Mercier-Laurent, Eunika, editor, and Li, Jiuyong, editor

Published
2018
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193. An Overlapping Microblog Community Detection Method Using New Partition Criterion

Author

Ma, Huifang, Xie, Meng, Wei, Jiahui, He, Tingnian, Hutchison, David, Series Editor, Kanade, Takeo, Series Editor, Kittler, Josef, Series Editor, Kleinberg, Jon M., Series Editor, Mattern, Friedemann, Series Editor, Mitchell, John C., Series Editor, Naor, Moni, Series Editor, Pandu Rangan, C., Series Editor, Steffen, Bernhard, Series Editor, Terzopoulos, Demetri, Series Editor, Tygar, Doug, Series Editor, Weikum, Gerhard, Series Editor, Liu, Weiru, editor, Giunchiglia, Fausto, editor, and Yang, Bo, editor

Published
2018
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194. A Neuronal Morphology Classification Approach Based on Deep Residual Neural Networks

Author

Lin, Xianghong, Zheng, Jianyang, Wang, Xiangwen, Ma, Huifang, Hutchison, David, Series Editor, Kanade, Takeo, Series Editor, Kittler, Josef, Series Editor, Kleinberg, Jon M., Series Editor, Mattern, Friedemann, Series Editor, Mitchell, John C., Series Editor, Naor, Moni, Series Editor, Pandu Rangan, C., Series Editor, Steffen, Bernhard, Series Editor, Terzopoulos, Demetri, Series Editor, Tygar, Doug, Series Editor, Weikum, Gerhard, Series Editor, Cheng, Long, editor, Leung, Andrew Chi Sing, editor, and Ozawa, Seiichi, editor

Published
2018
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195. Learning from Titles to Recommend Keywords for Academic Papers

Author

Ma, Huifang, Liu, Fang, Xia, Qin, Yu, Li, Hutchison, David, Series Editor, Kanade, Takeo, Series Editor, Kittler, Josef, Series Editor, Kleinberg, Jon M., Series Editor, Mattern, Friedemann, Series Editor, Mitchell, John C., Series Editor, Naor, Moni, Series Editor, Pandu Rangan, C., Series Editor, Steffen, Bernhard, Series Editor, Terzopoulos, Demetri, Series Editor, Tygar, Doug, Series Editor, Weikum, Gerhard, Series Editor, Cheng, Long, editor, Leung, Andrew Chi Sing, editor, and Ozawa, Seiichi, editor

Published
2018
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197. General synthesis of two-dimensional van der Waals heterostructure arrays

Author

Li, Jia, Yang, Xiangdong, Liu, Yang, Huang, Bolong, Wu, Ruixia, Zhang, Zhengwei, Zhao, Bei, Ma, Huifang, Dang, Weiqi, Wei, Zheng, Wang, Kai, Lin, Zhaoyang, Yan, Xingxu, Sun, Mingzi, Li, Bo, Pan, Xiaoqing, and Luo, Jun

Subjects
Production processes, Methods, Chemical synthesis -- Methods, Crystals -- Production processes
Abstract

Author(s): Jia Li [sup.1] , Xiangdong Yang [sup.1] , Yang Liu [sup.2] , Bolong Huang [sup.3] , Ruixia Wu [sup.1] , Zhengwei Zhang [sup.1] , Bei Zhao [sup.1] , Huifang [...], Two-dimensional van der Waals heterostructures (vdWHs) have attracted considerable interest.sup.1-4. However, most vdWHs reported so far are created by an arduous micromechanical exfoliation and manual restacking process.sup.5, which--although versatile for proof-of-concept demonstrations.sup.6-16 and fundamental studies.sup.17-30--is clearly not scalable for practical technologies. Here we report a general synthetic strategy for two-dimensional vdWH arrays between metallic transition-metal dichalcogenides (m-TMDs) and semiconducting TMDs (s-TMDs). By selectively patterning nucleation sites on monolayer or bilayer s-TMDs, we precisely control the nucleation and growth of diverse m-TMDs with designable periodic arrangements and tunable lateral dimensions at the predesignated spatial locations, producing a series of vdWH arrays, including VSe.sub.2/WSe.sub.2, NiTe.sub.2/WSe.sub.2, CoTe.sub.2/WSe.sub.2, NbTe.sub.2/WSe.sub.2, VS.sub.2/WSe.sub.2, VSe.sub.2/MoS.sub.2 and VSe.sub.2/WS.sub.2. Systematic scanning transmission electron microscopy studies reveal nearly ideal vdW interfaces with widely tunable moiré superlattices. With the atomically clean vdW interface, we further show that the m-TMDs function as highly reliable synthetic vdW contacts for the underlying WSe.sub.2 with excellent device performance and yield, delivering a high ON-current density of up to 900 microamperes per micrometre in bilayer WSe.sub.2 transistors. This general synthesis of diverse two-dimensional vdWH arrays provides a versatile material platform for exploring exotic physics and promises a scalable pathway to high-performance devices. A general strategy for the synthesis of two-dimensional van der Waals heterostructure arrays is used to produce high-performance electronic devices, showing the potential of this scalable approach for practical technologies.

Published
2020
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