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农地确权与农户政策性农业保险购买意愿--对农业保险的策略性手段考察

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中南财经政法大学学报 2022年第6期 107-118页

作者：丛胜美罗必良河南财经政法大学工程管理与房地产学院河南郑州450046 华南农业大学国家农业制度与发展研究院广东广州510642

政策性农业保险参保意愿,在农地确权农户中的积极性低于未确权农户,隐含着理论逻辑与现实之间的明显反差。由地权不稳定所带来的预期不足,强化了农户对政府与集体的依赖,并通过响应基层政府政策的方式来规避地权弱化的风险。农地确权则... 详细信息

政策性农业保险参保意愿,在农地确权农户中的积极性低于未确权农户,隐含着理论逻辑与现实之间的明显反差。由地权不稳定所带来的预期不足,强化了农户对政府与集体的依赖,并通过响应基层政府政策的方式来规避地权弱化的风险。农地确权则可能强化农户的行为能力,并降低相关政策动员的响应效果。政策性农业保险购买行为被部分农户视为响应政府、规避地权风险的策略性手段。基于河南省麦区农户调研数据的实证分析发现:农地确权颁证显著降低了农户政策性农业保险的参保意愿,该结论在考虑了内生性问题、自选择问题和基于省级面板数据再检验后依然成立;其中,政府依从成为重要的中间机制。进一步的分析表明,农户对地权安全性的感知越强,其购买政策性农业保险的策略性作用就越弱;村干部家庭将弱化政策性农业保险的策略性作用;农户受灾将强化保险的策略性作用,而灾后获赔将弱化保险的策略性作用。政策性农业保险推广应该从“政治逻辑”转化为“经济逻辑”,变农户被动选择为主动选择,由此推进农业保险市场的精准施策与有序发育。

关键词：政策性农业保险政府依从农地确权

An Improved Wireless Sensor Network Routing Algorithm

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ZTE Communications 2015年第3期13卷 51-56页

作者： Shengmei Luo Xue Li Yiai Jin Zhixin Sun ZTE Corporation School of Internet of Things Nanjing University of Posts and Telecommunications

High performance with low power consumption is an essential factor in wireless sensor networks （WSN）. In order to address the issue on the lifetime and the consumption of nodes in WSNs, an improved ad hoc on-demand distance vector routing （IAODV） algorithm is proposed based on AODV and LAR protocols. This algorithm is a modified on-demand routing algorithm that limits data forwarding in the searching domain, and then chooses the route on basis of hop count and power consumption. The simulation results show that the algorithm can effectively reduce power consumption as well as prolong the network lifetime.

关键词： wireless sensor network low power consumption lifetime AODV LAR

A User-Recommendation Method Based on Social Media

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ZTE Communications 2014年第1期12卷 57-61页

作者： Hong Chen Shengmei Luo Lei Hu Xiuwen Wang ZTE Corporation National Computer network Emergency Response technical Team

User-analysis techniques are mainly used to recommend friends and information. This paper discusses the data characteristics of microblog users and describes a multidimensional user rec- ommendation algorithm that takes into account microblog length, relativity between microblog and users, and familiarity between users. The experimental results show that this multidi- mensional algorithm is more accurate than a traditional recom- mendation algorithm.

关键词： social media user recommendation information recommenda-tion relation analysis

HMIBase: An Hierarchical Indexing System for Storing and Querying Big Data

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ZTE Communications 2014年第4期12卷 8-15页

作者： Shengmei Luo Di Zhao Wei Ge Rong Gu Chunfeng Yuan Yihua Huang ZTE Corporation Nanjing University

Relational database management systems are usually deployed on singlenode machines and have strict limitations in terms of da ta structure. This means they do not work well with big data, and NoSQL has been proposed as a solution. To make data querying more efficient, indexes and memory cache techniques are used in NoSQL databases. In this paper, we propose a hierarchical in dexing mechanism and a prototype distributed datastorage system, called HMIBase, which has hierarchical indexes for nonprima ry keys in tables and makes data querying more efficient. HMIBase uses HBase as the lower data storage and creates a memory cache for more efficient data transmission. HMIBase supports coprocessortoprocess update requests. It also provides a client with query and update APIs and a server to support RPCs from the client and finish jobs. To improve the cache hit ratio, we propose a memory cache replacement strategy, called Hot Score algorithm, in HMIBase. The experimental results show that Hot Score algo rithm is better than other cachereplacement strategies.

关键词： NoSQL In-Memory Index HMIBase Hot Score

Pedestrian Dead Reckoning in Handheld Terminal with Inertial Measurement Unit

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Pedestrian Dead Reckoning in Handheld Terminal with Inertial...

Persistent Data Layout in File Systems

第五届中国卫星导航学术年会

作者： Keji Wang Zhongliang Deng Shengmei Luo Yanpei Yu Fengli Ruan Beijing University of Posts and Telecommunications Zhongxing Telecom Equipment

In this paper,using the pedestrian dead reckoning algorithm based accelerometer and electronic compass composition IMU to assist indoor positioning.Detection pedestrians step length and walking status.Currently detect direction of motion requires the user wear or holding IMU with a fixed posture,To address this issue,proposed terminal gesture recognition algorithm to solve cognitive difficulties problems of direction of movement when handheld terminal with any posture,to get the correct direction of movement.Then combination step count values,step length,direction of movement and wireless positioning results,this system can effectively improve the positioning performance.

关键词： Pedestrian dead reckoning PDR.Inertial navigation.Indoor positioning

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ZTE Communications 2018年第3期16卷 59-66页

作者： luo shengmei LU Youyou YANG Hongzhang SHU Jiwu ZHANG Jiacheng ZTE Corporation Shenzhen 518057China Tsinghua University Beijing 100084China

Data layout in a file system is the organization of data stored in external storages. The data layout has a huge impact on performance of storage systems. We survey three main kinds of data layout in traditional file systems： in-place update file system, log-structured file system, and copy-on-write file sys- tem. Each file system has its own strengths and weaknesses under different circumstances. We also include a recent us- age of persistent layout in a file system that combines both flash memory and byte- addressable non- volatile memory. With this survey, we conclude that persistent data layout in file systems may evolve dramatically in the era of emerging non-volatile memory.

关键词： data layout file system persistent storage solid state drive（SSD）

A New Virtual Disk Mapping Method for the Cloud Desktop Storage Client

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ZTE Communications 2014年第4期12卷 3-7页

作者： Hancong Duan Xiaoqin Wang Ping Lu Shengmei Luo Zhiyong Wang University of Electronic Science and Technology of China ZTE Corporation

Integration of the cloud desktop and cloud storage platform is urgent for enterprises. However, current proposals for cloud disk are not satisfactory in terms of the decoupling of virtual computing and business data storage in the cloud desktop environment. In this paper, we present a new virtual disk mapping method for cloud desktop storage. In Windows, compared with virtual hard disk method of popular cloud disks, the proposed implementation of client based on the virtual disk driver and the file system filter driver is available for widespread desktop environments, especially for the cloud desktop with limited storage resources. Further more, our method supports customizable local cache storage, resulting in userfriendly experience for thinclients of the cloud desktop. The evaluation results show that our virtual disk mapping method performs well in the readwrite throughput of different scale files.

关键词： cloud desktop file system filter driver customizable cache storage

突发公共卫生事件下大学生心理健康教育途径研究——以六盘水师范学院为例

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六盘水师范学院学报 2020年第4期32卷 83-87页

作者：罗圣梅六盘水师范学院贵州六盘水553001

为了解大学生在突发公共卫生事件下的心理健康状况,以六盘水师范学院为例,用自编量表对621名学生进行心理健康状况调查,以期提高大学生的心理健康水平。调研结果显示大学生心理健康状况整体处于正常范围;心理健康水平女生低于男生;大四... 详细信息

为了解大学生在突发公共卫生事件下的心理健康状况,以六盘水师范学院为例,用自编量表对621名学生进行心理健康状况调查,以期提高大学生的心理健康水平。调研结果显示大学生心理健康状况整体处于正常范围;心理健康水平女生低于男生;大四学生低于其他三个年级学生;文科学生低于理工科学生。开展心理健康教育应充分考虑性别、年级、专业等因素,有针对性地给予指导。

关键词：大学生突发公共卫生事件心理健康

Parallel Web Mining System Based on Cloud Platform

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ZTE Communications 2012年第4期10卷 45-53页

作者： Shengmei Luo Qing He Lixia Liu Xiang Ao Ning Li Fuzhen Zhuang Pre-Research department of ZTE Key Laboratory of Intelligent Information Processing Institute of Computing Technology Chinese Academy of Sciences Graduate University of Chinese Academy of Sciences

Traditional machine-learning algorithms are struggling to handle the exceedingly large amount of data being generated by the internet. In real-world applications, there is an urgent need for machine-learning algorithms to be able to handle large-scale, high-dimensional text data. Cloud computing involves the delivery of computing and storage as a service to a heterogeneous community of recipients, Recently, it has aroused much interest in industry and academia. Most previous works on cloud platforms only focus on the parallel algorithms for structured data. In this paper, we focus on the parallel implementation of web-mining algorithms and develop a parallel web-mining system that includes parallel web crawler; parallel text extract, transform and load （ETL） and modeling; and parallel text mining and application subsystems. The complete system enables variable real-world web-mining applications for mass data.

关键词： web mining large scale high volume high dimension cloudcomputing