Showing 50 of 1739 papers

Determination of Vitamin C Content in Vitamin Beverages and Vitamin C Effervescent Tablets by 2,6-Dichloroindophenol Method

Aole, Ma Jiahao, Zhang Haoshun, Yang Zijian, Chen Ziyuan, Cao Shiye, Chang Zhenbin, Aole
2022-05-16 ChinaXiv: chinaxiv-202205.00106

This paper is a biochemistry design experiment thesis from Harbin Institute of Technology (Weihai). The experiment employed the 2,6-dichloroindophenol method to determine the vitamin C content in vitamin beverages and effervescent tablets, discussed the feasibility of using pre-made vitamin beverage…

Non-uniform Berry-Esseen Estimates for Supercritical Branching Processes in Random Environments

Fan Xiequan, Wu Hao, Ye Yinna, Ye Yinna
2022-05-12 ChinaXiv: chinaxiv-202205.00042

Let $Z_n$ be a supercritical branching process in an i.i.d. environment. In this paper, we obtain two non-uniform Berry-Esseen bounds for $Z_n$. This result extends the Berry-Esseen bound of Grama et al. [Stochastic,Process.,Appl.,127(4),1255-1281,2017] to the non-uniform case. Finally, we discuss a…

A Comparative Study of Item Selection Strategies for CD-CAT Based on the Nominal Response Model

Zhang Jie, Luo Zhaosheng, Yu Xiaofeng, Qin Chunying, Luo Zhaosheng, Yu Xiaofeng
2022-05-12 ChinaXiv: chinaxiv-202205.00030

Currently, most research on CD-CAT has been conducted based on 0-1 scoring data, whereas in actual educational and psychological testing, there also exists a large amount of nominal response data. This study develops a CD-CAT suitable for nominal response data (hereinafter referred to as NCD-CAT) ba…

Research on Person Fit in Cognitive Diagnostic Assessment

Yu Xiaofeng, Tang Qian, Qin Chunying, Li Yujun, YU Xiaofeng
2022-05-12 ChinaXiv: chinaxiv-202204.00026

Typically, cognitive diagnosis necessitates diagnostic evaluation of examinees through cognitive diagnosis models. The validity of diagnostic results generated by cognitive diagnosis models depends on the congruence between examinees' response patterns and the selected model. Consequently, when eval…

Contributions and Limitations of the Subjective Class Research Approach

Yang Shenlong, Rao Tingting, Yu Feng, Yongyu Guo, Guo Yongyu
2022-05-12 ChinaXiv: chinaxiv-202205.00029

In recent years, the field of social class psychology has exhibited a pronounced research orientation toward subjective social class, prominently manifested by an emphasis on the subjective class component within the concept of social class, with a tendency to focus on subjective class in theoretica…

Exploring the influencing factors of COVID-19 vaccination willingness: A mixed-method study in China

Yue Su, Sijia Li, Feng Huang, Jia Xue, Tingshao Zhu, Jia Xue, Tingshao Zhu
2022-05-11 ChinaXiv: chinaxiv-202205.00024

The COVID-19 outbreak has caused tremendous damage to individuals' normal lives and societal development. Recently, with the emergence of novel coronavirus variants, people worldwide continue to face the threat of COVID-19. Vaccination is considered one of the most effective methods to combat this p…

Postprint: WSI-Based Classification of Breast Pathology Subtypes

Chen Jinling, Li Jie, Zhao Chengming, Liu Xin
2022-05-11 ChinaXiv: chinaxiv-202205.00047

To achieve accurate classification of breast pathology WSI images, we propose a gated convolutional neural network classification method based on hybrid connections. A hybrid module incorporating local residual connections and global dense connections is constructed, with squeeze-and-excitation gate…

RB-Raft: A Byzantine Fault-Tolerant Raft Consensus Algorithm Postprint

Shuzhi Li, Zou Yijie, Deng Xiaohong, Luo Zhiqiong, Liu Huiwen
2022-05-11 ChinaXiv: chinaxiv-202205.00025

To address the issues that the Raft algorithm cannot resist attacks from Byzantine nodes and that logs are susceptible to tampering and forgery, we design an RB-Raft (Resist Byzantine-Raft) algorithm that resists Byzantine nodes. First, we employ a hash chain approach to perform iterative hashing on…

Postprint of a Fire Evacuation Model Based on Dynamic Coupling of FDS and Cellular Automaton

Li Chao, Li Yufei, Huo Feizhou, Zhang Qinqin
2022-05-11 ChinaXiv: chinaxiv-202205.00046

To investigate the effects of hazard factors such as temperature, smoke, and CO concentration on evacuation in fire scenarios, a fire evacuation model based on dynamic coupling of FDS and cellular automata is established. The model establishes a one-to-one correspondence between FDS grids and cellul…

Postprint: A Multi-Population Stochastic Perturbation Ant Colony Algorithm for Distributed Constrained Optimization Problems

Shi Meifeng, Xiao Shichuan, Feng Xin
2022-05-11 ChinaXiv: chinaxiv-202205.00050

To address the issues of slow convergence and susceptibility to local optima in existing ant colony optimization-based algorithms for solving distributed constraint optimization problems, this paper proposes a Random disturbance based multi-population ant colony algorithm to solve distributed constr…

Complex Event Processing Methods for Real-Time Event Streams (Postprint)

Qiu Tao, Xie Peiliang, Deng Guopeng, Xi Hongmei, <PARA id="1">Zheng Zhi</PARA>, Xia Xiufeng
2022-05-11 ChinaXiv: chinaxiv-202205.00048

Complex event processing is a technique for analyzing event streams in dynamic environments. Typically implemented based on finite state automata, complex event processing techniques generate a large number of overlapping partial matches on the event stream during the matching process, requiring the…

Postprint: Multi-AGV Scheduling Optimization in Automated Container Terminals Considering Battery Pack Quantity

Xu Pengjin, Liang Chengji
2022-05-11 ChinaXiv: chinaxiv-202205.00049

A bi-level programming model is established to address the actual battery swapping characteristics of automated guided vehicles (AGVs) in automated container terminals, aiming to reduce the total task completion time and total battery swapping time of AGVs while rationally planning the number of bat…

Theoretical Exploration of Expressive Writing Applied to Psychological Rescue During Social Disasters

Qiu Xiaoyan, Ge Yanying, Hu Chao, Hu Chao
2022-05-10 ChinaXiv: chinaxiv-202205.00038

During periods of social disasters such as pandemics, the number of trauma survivors increases dramatically; coupled with transportation disruptions, traditional psychological rescue efforts struggle to respond promptly to large-scale psychological crises among disaster victims. Expressive writing, …

Zero-Knowledge Proof and Group Signature Scheme Based on Supersingular Isogeny (Postprint)

Zhao Xingbo, Li Mengdong, Wang Ying, Zhu Yilin
2022-05-10 ChinaXiv: chinaxiv-202205.00060

Bullens et al. left an open problem in CSI-Fish, namely designing an identification protocol that allows the system challenge space to be #1;, rather than a small set #1;. This paper proposes a zero-knowledge proof scheme based on supersingular isogenies. The scheme treats the challenge C as an isog…

Postprint of Improved Optical Flow Matching Algorithm Integrating IMU for Motion Blur Removal

Luan Xiaozhen, Wei Guoliang, Cai Jie
2022-05-10 ChinaXiv: chinaxiv-202205.00070

To further improve the accuracy and speed of optical flow matching in visual SLAM, this paper proposes an improved optical flow matching algorithm that integrates Inertial Measurement Unit (IMU) information to remove motion blur. The algorithm first employs a point spread function computed from IMU …

A Survey of Deep Learning-Based Video Action Recognition Techniques: Postprint

Li Chen, He Ming, Wang Yong, Luo Ling, Han Wei
2022-05-10 ChinaXiv: chinaxiv-202205.00068

Action Recognition (AR) represents a research hotspot in the field of computer vision, with extensive application prospects in security surveillance, autonomous driving, production safety, and other domains. First, the connotation and extension of action recognition are analyzed, and the technical c…

Postprint of Teaching Evaluation Data Modeling Based on Discrete Poisson Mixture Model

Huang Hao, Yan Qian, Gan Ting, Shijun Li
2022-05-10 ChinaXiv: chinaxiv-202205.00065

Analyzing student evaluation data for teachers in teaching evaluation systems enables teachers to comprehend students' authentic attitudes toward instructors, summarize teaching experience, improve subsequent teaching methods, and enhance teaching quality. However, during teaching evaluations, issue…

Intent-Based IoT Service Description and Discovery Postprint

Liu Xingyu, Jiang Lingyun
2022-05-10 ChinaXiv: chinaxiv-202205.00063

In the IoT service discovery process, users typically express their requirements through their own intentions, whereas service descriptions constitute explanations of service functionalities; consequently, mismatches between these two elements impact the accuracy of service discovery. Simultaneously…

Mobile Crowdsensing Task Recommendation Based on Spatiotemporal Information and Task Popularity Analysis: Postprint

Yang Guisong, Wang Jingru, Li Jun, He Xingyu
2022-05-10 ChinaXiv: chinaxiv-202205.00061

Existing mobile crowdsensing task recommendation methods share common drawbacks: on one hand, they fail to fully consider the impact of spatio-temporal information on worker preferences, resulting in low recommendation accuracy; on the other hand, they ignore the influence of task popularity on reco…

RGB-T Nested Semantic Segmentation Network Fusing Deep Differential Features: Postprint

Yuan Haobin, Zhao Tao, Zhong Yuzhong
2022-05-10 ChinaXiv: chinaxiv-202205.00026

To address the suboptimal segmentation performance of existing visible-infrared (RGB-T) image semantic segmentation models, this paper proposes a nested segmentation network based on deep difference feature complementary fusion. Specifically, the encoder and decoder components are interconnected via…

A Social Account Credibility Evaluation Method Based on Improved Hierarchical Belief Rule Base: Postprint

Wu Fei, Wang Wei
2022-05-10 ChinaXiv: chinaxiv-202205.00054

Social media account credibility assessment is an important component in ensuring the healthy development of online social ecosystems. To address issues such as multi-dimensional credibility assessment indicators for social media accounts and diverse data information uncertainties, a credibility ass…

Network Terminal-Supported NDN Mobility Management Mechanism Postprint

Li Zhuo, Mao Yachun, Luo Peng, Ma Tianxiang, Zhao Jianli
2022-05-10 ChinaXiv: chinaxiv-202205.00059

Named Data Networking (NDN), as a novel Internet architecture, aims to address the ever-increasing data traffic. Based on its consumer-driven content retrieval model, NDN naturally supports consumer mobility. However, producer mobility remains a challenging problem, requiring additional mechanisms t…

Postprint: A Survey on Hyperledger Applications in IoT from a Reconstructed Graph Perspective

Leng Zeqi, Wang Kunhao, Liang Wei, Zheng Yuefeng
2022-05-10 ChinaXiv: chinaxiv-202205.00067

In deploying blockchain-based IoT applications, technical obstacles have emerged, including lack of fine-grained privacy protection, low transaction processing efficiency, high latency, and insufficient flexibility and dynamism. To further advance the popularization and practical deployment of block…

Postprint of Research on Local Directed Acyclic Graph Blockchain in Wireless Internet of Things

Yang Changlin, Wang Jiguang, Wangqing
2022-05-10 ChinaXiv: chinaxiv-202205.00082

To reduce data storage requirements and transmission overhead in wireless Internet of Things (IoT), a local directed acyclic graph blockchain scheme (LDB) based on directed acyclic graph (DAG) is proposed. This scheme addresses node storage constraints and transmission overhead by enabling wireless …

Postprint: Joint Side and Main Path Decoding Feature Learning Method for Multiple Description Coding Image Enhancement

Zhao Lijun, Cao Congying, ZHANG Jinjing, Bai Huihui, Zhao Yao, Wang Anhong
2022-05-10 ChinaXiv: chinaxiv-202205.00084

We propose a multi-description coding image enhancement method based on joint side and central decoding feature learning, which simultaneously considers both side decoding image enhancement and central decoding image enhancement, thereby enabling better network training through joint optimization of…

Deep Reinforcement Learning-Based Stochastic Resource-Constrained Multi-Project Dynamic Scheduling Strategy Postprint

Guo Xiaojian, Hu Fangyong
2022-05-10 ChinaXiv: chinaxiv-202205.00080

Currently, research on the Stochastic Duration Distributed Resource-Constrained Multi-Project Scheduling Problem (SDRCMPSP) is scarce, with most studies focusing on static scheduling schemes that cannot adjust and optimize strategies in real-time in response to environmental changes or promptly addr…

Postprint: Real-Time Pricing Strategy Using Reinforcement Learning Considering Load Uncertainty

Jingqi Wang, Gao Yan, Wu Zhiqiang, Li Renjie
2022-05-10 ChinaXiv: chinaxiv-202205.00076

In response to the current challenges of load uncertainty, renewable energy integration, and "dual carbon" objectives in power systems, this paper establishes a real-time pricing model that incorporates load uncertainty and carbon trading within the smart grid context, while fully considering the we…

Knowledge-Aware Propagation Recommendation Algorithm Based on User Latent Interests (Postprint)

Zhang Bo, Zhao Peng, Zhang Jinjin, Zeng Zhaoju, Xiao Xuhao
2022-05-10 ChinaXiv: chinaxiv-202205.00078

Integrating knowledge graphs into recommendation systems can leverage the semantic relationships between entities in knowledge graphs to learn user and item representations. Embedding propagation-based methods utilize the graph structure of knowledge graphs to learn relevant features, but as the pro…

<PARA id="1">Postprint: An Implicit Deep Collaborative Recommendation Model Integrating Propositional Logic and Neural Networks</PARA>

Chen Bang, Wu Maonian, Zhu Shaojun, Zheng Bo, Peng Wei
2022-05-10 ChinaXiv: chinaxiv-202205.00081

With the goal of enhancing the cognitive reasoning capability of recommendation algorithm models and overcoming the current limitation where traditional recommendation algorithms heavily rely on data quality, resulting in constrained performance, we propose an implicit deep collaborative recommendat…

Postprint: Decision Algorithm for Airport Gate Reallocation Based on Imitation Learning

Xing Zhiwei, Zhang Qianqian, Luo Qian, Chen Zhaoxin
2022-05-10 ChinaXiv: chinaxiv-202205.00074

To address the issue that gate reallocation algorithm results struggle to satisfy the operating habits of different operators, a gate reallocation recommendation algorithm that aligns with the operational habits of actual operational staff is proposed. First, a decision environment space model is co…

Postprint: A Text Classification Method Integrating Text Graph Convolution and Ensemble Learning

Zhou Xuanlang, Qiu Weigen, Zhang Lichen
2022-05-10 ChinaXiv: chinaxiv-202205.00079

To improve text classification accuracy and address the issue of insufficient utilization of node features in text graph convolutional neural networks, a novel text classification model is proposed that intrinsically integrates the advantages of text graph convolution and Stacking ensemble learning …

Dual-Branch Upsampling Domain Adaptation Network for Unsupervised Segmentation (Postprint)

Han Zonghuan, Liu Mingguo, Li Shen, Chen Lijia, Tian Min, Lan Tianxiang, Liang Qian
2022-05-10 ChinaXiv: chinaxiv-202205.00083

In industrial applications, fully supervised semantic segmentation for surface imprinted character images incurs high dataset annotation costs for enterprises. To address this issue, we propose a dual-branch feature fusion domain adaptation segmentation method (Dual-branch Feature Fusion Domain Adap…

Time-Varying Analysis of Investor Sentiment, Stock Market Liquidity, and Volatility: Based on Deep Learning BERT Model and TVP-VAR Model

Zhang Chenrui, Wu Xinyi, Deng Hailu, Zhang Huiwei, Zhang Chenrui
2022-05-10 ChinaXiv: chinaxiv-202205.00034

Based on comment data from Eastmoney.com's Shenzhen Component Index stock forum between January 1, 2018 and December 31, 2019, this study extracts investor sentiment embedded therein using a deep learning BERT model, and employs a TVP-VAR model to investigate the time-varying dynamic relationships a…

Glacier mass balance and its impacts on streamflow in a typical inland river basin in the Tianshan Mountains, northwestern China (postprint)

PENG Jiajia, Li Zhongqin, XU Liping, MA Yuqing, LI Hongliang, ZHAO Weibo, FAN Shuang
2022-05-09 ChinaXiv: chinaxiv-202205.00017

Abstract: Glaciers are known as natural ''solid reservoirs'', and they play a dual role between the composition of water resources and the river runoff regulation in arid and semi-arid areas of China. In this study, we used in situ observation data from Urumqi Glacier No. 1, Xinjiang Uygur Autonomou…

Application of the InVEST model for assessing water yield and its response to precipitation and land use in the Weihe River Basin, China (Postprint)

WU Changxue, QIU Dexun, GAO Peng, MU Xingmin, ZHAO Guangju
2022-05-09 ChinaXiv: chinaxiv-202205.00019

Abstract: With realizing the importance of ecosystem services to society, the efforts to evaluate the ecosystem services have increased. As the largest tributary of the Yellow River, the Weihe River has been endowed with many ecological service functions. Among which, water yield can be a measure of…

Effects of mixed-based biochar on water infiltration and evaporation in aeolian sand soil (Postprint)

ZOU Yiping, ZHANG Shuyue, Shi Ziyue, ZHOU Huixin, ZHENG Haowei, HU Jiahui, MEI Jing, BAI Lu, JIA Jianli
2022-05-09 ChinaXiv: chinaxiv-202205.00022

Abstract: Aeolian sandy soil in mining areas is characterized by intense evaporation and poor water retention capacity. This study was designed to identify a suitable biochar application method to improve soil water infiltration and minimize soil water evaporation for aeolian sandy soil. Using an in…

Soil carbon mineralization as affected by water content and nitrogen rate after ryegrass incorporated into soil

Meijuan Lu, Jiancheng Xu, Xiaowei Wang, Wenting Yang, Wenting Yang
2022-05-08 ChinaXiv: chinaxiv-202205.00037

Planting cover crop has been suggested as a way of increasing soil organic carbon in agricultural land. Ryegrass (Lolium multiflorum L.), as a cover crop, could improve soil fertility and lower soil CO2 emission. However, effects of soil water content and nitrogen on soil carbon mineralization after…

Femtosecond Laser Internal Modification of Hot-Extruded Polymethylpentene

Zhu Guangyu, Xiang Jing, Zhou Dengmei, Li Peng, Ou Hanwen, Xihao Chen, Zhu Guangyu, Chen Xihao
2022-05-08 ChinaXiv: chinaxiv-202205.00036

This study investigates the application technology of near-ultraviolet femtosecond laser pulse inscription inside polymethylpentene. We discovered that this thermoplastic material exhibits polarization-sensitive characteristics. First, inscription experiments employed a lens with a numerical apertur…

The Role of Chinese Text Familiarity in Word Segmentation and Lexical Recognition

Chen Mingjing, Wang Yongsheng, Zhao Bingjie, Li Xin, Bai Xuejun, Wang Yongsheng, Bai Xuejun
2022-05-08 ChinaXiv: chinaxiv-202205.00101

Abstract Based on the E-Z Reader model and the integrated model of Chinese reading, there is controversy over whether word segmentation and lexical identification constitute an interactive unified process. By manipulating reading direction to alter text familiarity, we investigated its role in word …

Danger as a Catalyst for Change? A Study on the Differential Effects of Job Insecurity on Innovative Behavior

Ma Bing, Yang Rong, Du Jing, Ma Guimei, Ma Guimei
2022-05-07 ChinaXiv: chinaxiv-202205.00031

Organizations often face a "dilemma" in employee management and organizational innovation—finding it difficult to provide stable employment yet having to rely on employees to achieve organizational innovation, which makes research on the impact of employee job insecurity on innovative behavior cruci…