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486 results on '"Wang, Zhaoyi"'

1. SLHCat: Mapping Wikipedia Categories and Lists to DBpedia by Leveraging Semantic, Lexical, and Hierarchical Features

Author

Wang, Zhaoyi, Zhang, Zhenyang, Qin, Jiaxin, and Iwaihara, Mizuho

Subjects
Computer Science - Digital Libraries, Computer Science - Computation and Language
Abstract

Wikipedia articles are hierarchically organized through categories and lists, providing one of the most comprehensive and universal taxonomy, but its open creation is causing redundancies and inconsistencies. Assigning DBPedia classes to Wikipedia categories and lists can alleviate the problem, realizing a large knowledge graph which is essential for categorizing digital contents through entity linking and typing. However, the existing approach of CaLiGraph is producing incomplete and non-fine grained mappings. In this paper, we tackle the problem as ontology alignment, where structural information of knowledge graphs and lexical and semantic features of ontology class names are utilized to discover confident mappings, which are in turn utilized for finetuing pretrained language models in a distant supervision fashion. Our method SLHCat consists of two main parts: 1) Automatically generating training data by leveraging knowledge graph structure, semantic similarities, and named entity typing. 2) Finetuning and prompt-tuning of the pre-trained language model BERT are carried out over the training data, to capture semantic and syntactic properties of class names. Our model SLHCat is evaluated over a benchmark dataset constructed by annotating 3000 fine-grained CaLiGraph-DBpedia mapping pairs. SLHCat is outperforming the baseline model by a large margin of 25% in accuracy, offering a practical solution for large-scale ontology mapping., Comment: ICADL23

Published
2023

2. Calculation of Special Spin Behavior of Dy3+ in DyFe1-xCrxO3 System by Molecular Field Model

Author

Gao, Kaiyang, Zhou, Kexuan, Shen, Jiyu, Lu, Zeyi, Gong, Chenying, Wu, Zhongjin, Shi, Ke, Guo, Jing, Wang, Zhaoyi, and Liu, Min

Subjects
Condensed Matter - Materials Science
Abstract

In this study, the sol-gel method synthesized the magnetic measurement and analysis of single-phase polycrystalline perovskite DyFe1-xCrxO3 (DFCO). The experimental data were fitted and calculated by a four-sublattice molecular field model. Unlike previous studies, we found that in DyFe1-xCrxO3, the spin of the A-site rare earth ion Dy3+ also changed simultaneously with the spin reorientation of the Fe3+/Cr3+ ions. The effective spin is defined as the projection of the A site's total spin on the B site's spin plane, and the curve of temperature changes is obtained after fitting. With this theory, a very accurate thermomagnetic curve is obtained by fitting. This is convincing and, at the same time, provides a reference for the development of spintronic devices in the future.

Published
2023

23. Design of Calligraphy Aesthetic Evaluation Model Based on Deep Learning and Writing Action

Author

Wang, Zhaoyi, Lv, Ruimin, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, S. Shmaliy, Yuriy, editor, and Abdelnaby Zekry, Abdelhalim, editor

Published
2022
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35. Research on the influence of large diameter borehole pressure relief on surrounding rock strength and anchoring force

Author

LI Xiaoyan, SUN Dequan, XIE Fenghua, CHEN Ying, WANG Zhaoyi, HOU Tangye

Subjects
large diameter borehole pressure relief, surrounding rock, thick wall theory, anchoring force, roadway support, Mining engineering. Metallurgy, TN1-997
Abstract

In order to study the effect of pressure relief of large diameter borehole on surrounding rock strength and anchoring force, according to the thick wall theoretical model, the corresponding relationship between the laboratory experiment and the strength change of surrounding rock in coal mine is established. The influence of large diameter borehole on surrounding rock strength was analyzed by FLAC3D, and it was found that the surrounding rock strength of 3320 working face in Liangbaosi Coal Mine decreased by 20%-25% after pressure relief. The mechanical properties of anchor bolts and anchoring agents used in coal mines are obtained through experimental tests. PVC, 6061 aluminum and 20# steel sleeves were used to study the relationship between different radial stiffness and anchoring force, the anchoring force is between 55.4 kN and 110 kN. According to the equivalent radial stiffness formula, it is determined that the bolt anchorage force weakened is about 10% by the pressure relief drilling with diameter of 150 mm. In order to maintain the equivalent control degree of surrounding rock, the support strength should be designed as 1.10 times of that without pressure relief drilling.

Published
2022
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36. Decadal changes in emissions of volatile organic compounds (VOCs) from on-road vehicles with intensified automobile pollution control: Case study in a busy urban tunnel in south China

Author

Zhang, Yanli, Yang, Weiqiang, Simpson, Isobel, Huang, Xinyu, Yu, Jianzhen, Huang, Zhonghui, Wang, Zhaoyi, Zhang, Zhou, Liu, Di, Huang, Zuzhao, Wang, Yujun, Pei, Chenglei, Shao, Min, Blake, Donald R, Zheng, Junyu, Huang, Zhijiong, and Wang, Xinming

Subjects
Earth Sciences, Atmospheric Sciences, Environmental Sciences, Pollution and Contamination, Climate Action, Good Health and Well Being, Aerosols, Air Pollutants, Alkanes, Alkenes, Automobiles, Butadienes, Butanes, China, Environmental Monitoring, Environmental Policy, Environmental Pollution, Gasoline, Hemiterpenes, Hydrocarbons, Motor Vehicles, Ozone, Pentanes, Toluene, Vehicle Emissions, Volatile Organic Compounds, Emission factors, Volatile organic compounds, Vehicle exhaust, Secondary organic aerosols
Abstract

In the efforts at controlling automobile emissions, it is important to know in what extent air pollutants from on-road vehicles could be truly reduced. In 2014 we conducted tests in a heavily trafficked tunnel in south China to characterize emissions of volatile organic compounds (VOC) from on-road vehicle fleet and compared our results with those obtained in the same tunnel in 2004. Alkanes, aromatics, and alkenes had average emission factors (EFs) of 338, 63, and 42 mg km-1 in 2014 against that of 194, 129, and 160 mg km-1 in 2004, respectively. In 2014, LPG-related propane, n-butane and i-butane were the top three non-methane hydrocarbons (NMHCs) with EFs of 184 ± 21, 53 ± 6 and 31 ± 3 mg km-1; the gasoline evaporation marker i-pentane had an average EF of 17 ± 3 mg km-1; ethylene and propene were the top two alkenes with average EFs of 16 ± 1 and 9.7 ± 0.9 mg km-1, respectively; isoprene had no direct emission from vehicles; toluene showed the highest EF of 11 ± 2 mg km-1 among the aromatics; and acetylene had an average EF of 7 ± 1 mg km-1. While EFs of total NMHCs decreased only 9% from 493 ± 120 mg km-1 in 2004 to 449 ± 40 mg km-1 in 2014, their total ozone formation potential (OFP) decreased by 57% from 2.50 × 103 mg km-1 in 2004 to 1.10 × 103 mg km-1 in 2014, and their total secondary organic aerosol formation potential (SOAFP) decreased by 50% from 50 mg km-1 in 2004 to 25 mg km-1 in 2014. The large drop in ozone and SOA formation potentials could be explained by reduced emissions of reactive alkenes and aromatics, due largely to fuel transition from gasoline/diesel to LPG for taxis/buses and upgraded vehicle emission standards.

Published
2018

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