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Social Network Information Propagation Model Based on Individual Behavior 被引量:9
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作者 Lejun Zhang Hongjie Li +1 位作者 Chunhui Zhao Xiaoying Lei 《China Communications》 SCIE CSCD 2017年第7期78-92,共15页
In this paper, we discuss building an information dissemination model based on individual behavior. We analyze the individual behavior related to information dissemination and the factors that affect the sharing behav... In this paper, we discuss building an information dissemination model based on individual behavior. We analyze the individual behavior related to information dissemination and the factors that affect the sharing behavior of individuals, and we define and quantify these factors. We consider these factors as characteristic attributes and use a Bayesian classifier to classify individuals. Considering the forwarding delay characteristics of information dissemination, we present a random time generation method that simulates the delay of information dissemination. Given time and other constraints, a user might not look at all the information that his/her friends published. Therefore, this paper proposes an algorithm to predict information visibility, i.e., it estimates the probability that an individual will see the information. Based on the classification of individual behavior and combined with our random time generation and information visibility prediction method, we propose an information dissemination model based on individual behavior. The model can be used to predict the scale and speed of information propagation. We use data sets from Sina Weibo to validate and analyze the prediction methods of the individual behavior and information dissemination model based on individual behavior. A previously proposedinformation dissemination model provides the foundation for a subsequent study on the evolution of the network and social network analysis. Predicting the scale and speed of information dissemination can also be used for public opinion monitoring. 展开更多
关键词 social network information propagation individual behavior propagation delay
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Study on individualized information service for the reader in the library based on the network 被引量:1
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作者 唐振宇 李莘 +1 位作者 陈凤岩 冯玉强 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2007年第6期779-783,共5页
With the massive increase of digital resource based on the network,it becomes very important that how to help readers acquire the information needed according to the individualized requirement and interest in an accur... With the massive increase of digital resource based on the network,it becomes very important that how to help readers acquire the information needed according to the individualized requirement and interest in an accurate,convenient and prompt method. Therefore,it is very urgent to investigate individualized information service of library. In this paper,based on the development of the individualized information service for the reader in the college library,the individualized information service is clarified by using three perspectives,including establishment of individualized information demand model,integration of internal and external resource and protection of the reader privacy. Finally,the corresponding strategy and related measure are presented. 展开更多
关键词 individualized information service Demand model of the reader Resource integration Protection of the reader privacy
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G-CPT Symmetry of Quantum Emergence and Submergence—An Information Conservational Multiagent Cellular Automata Unification of CPT Symmetry and CP Violation for Equilibrium-Based Many-World Causal Analysis of Quantum Coherence and Decoherence 被引量:2
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作者 Wen-Ran Zhang 《Journal of Quantum Information Science》 2016年第2期62-97,共36页
An equilibrium-based YinYang bipolar dynamic Generalization of CPT (G-CPT) symmetry is introduced based on energy/information conservational quantum emergence-submergence. As a bottleneck of quantum computing, quantum... An equilibrium-based YinYang bipolar dynamic Generalization of CPT (G-CPT) symmetry is introduced based on energy/information conservational quantum emergence-submergence. As a bottleneck of quantum computing, quantum decoherence or collapse has been plaguing quantum mechanics for decades. It is suggested that the crux of the problem can trace its origin back to the incompleteness of CPT symmetry due to the lack of holistic representation for equilibrium-based bipolar coexistence. In this work, the notion of quantum emergence-submergence is coined as two opposite processes with bipolar energy/information conservation. The new notion leads to G-CPT symmetry supported by a Bipolar Quantum Cellular Automata (BQCA) interpretation of quantum mechanics. It is shown that the new interpretation further leads to the unification of electromagnetic particle-antiparticle bipolarity and gravitational action-reaction bipolarity as well as CPT symmetry and CP violation into a philosophically, geometrically and logically different quantum gravity theory. On one hand, G-CPT symmetry enables a Bipolar Quantum Agent (BQA) to emerge as a bipolar quantum superposition or entanglement coupled to a globally coherent BQCA;on the other hand, G-CP violation supports a causal theory of BQA submergence or decoupling from the global coherence. In turn, BQAs can submerge from one world but emerge in another within YinYang bipolar quantum geometry. It is suggested that all logical, physical, social, biological and mental worlds are bipolar quantum entangled under G-CPT symmetry. It is contended that G-CPT symmetry constitutes an analytical paradigm of quantum mechanics and quantum gravity—a fundamental departure from “what goes around comes around”. The new paradigm leads to a number of predictions and challenges. 展开更多
关键词 Negative-Positive Energy/information Unification information Conservation Equilibrium-Based Generalization Complete Background-Independence Bipolar Quantum Geometry Bipolar Quantum Superposition Quantum Emergence-Submergence Quantum Coherence-Decoherence Classical world and Quantum world Symmetrical Measurement
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Information System/Information Technology Strategic Planning in Order Information Technology Development Strategy Using TOGAF (The Open Group Architecture Framework) Methodology in Achieving World Class University in Satya Wacana Christian University
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作者 Augie David Manuputty Agustinus Fritz Wijaya 《Intelligent Information Management》 2013年第6期175-181,共7页
Information systems and information technology (IS/IT) play an important role in supporting the organization to conduct its business processes. The research was conducted at the University of Satya Christian Wacana (S... Information systems and information technology (IS/IT) play an important role in supporting the organization to conduct its business processes. The research was conducted at the University of Satya Christian Wacana (SWCU). Business processes in perceived walking SWCU are not optimal in using IS/IT in the organization. The planning process/IT has not been done in all business units and SWCU does not have an Executive Information System that can help in the decision making process. The process of strategic planning of information systems and information technology using The Open Group Architecture Framework (TOGAF) has compiled a few methods of strategic planning. The results obtained by the study of the needs of IS/IT in SWCU generating application portfolio will be implemented in the institution. 展开更多
关键词 information Systems information TECHNOLOGY Strategic Planning world Class UNIVERSITY TOGAF
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Scalable Quantum Information Transfer between Individual Nitrogen-Vacancy Centers by a Hybrid Quantum Interface
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作者 裴培 黄鹤飞 +1 位作者 郭彦青 宋鹤 《Chinese Physics Letters》 SCIE CAS CSCD 2016年第2期9-12,共4页
We develop a design of a hybrid quantum interface for quantum information transfer (QIT), adopting a nanome- chanical resonator as the intermedium, which is magnetically coupled with individual nitrogen-vacancy cent... We develop a design of a hybrid quantum interface for quantum information transfer (QIT), adopting a nanome- chanical resonator as the intermedium, which is magnetically coupled with individual nitrogen-vacancy centers as the solid qubits, while eapacitively coupled with a coplanar waveguide resonator as the quantum data bus. We describe the Hamiltonian of the model, and analytically demonstrate the QIT for both the resonant interaction and large detuning cases. The hybrid quantum interface allows for QIT between arbitrarily selected individual nitrogen-vacancy centers, and has advantages of the sealability and controllability. Our methods open an alter- native perspective for implementing QIT, which is important during quantum storing or processing procedures in quantum computing. 展开更多
关键词 of for is in Scalable Quantum information Transfer between individual Nitrogen-Vacancy Centers by a Hybrid Quantum Interface by
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UN's World Summit on the Information Society (WSIS) Selects ZTE as Official Telecoms Partner
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《ZTE Communications》 2005年第4期70-70,共1页
关键词 ZTE UN’s world Summit on the information Society Selects ZTE as Official Telecoms Partner WSIS world
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Impact of the World’s New Technological Revolution on Economic Development and Educational Reform in the Information Age
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作者 Feng Cao 《Journal of Contemporary Educational Research》 2021年第11期207-216,共10页
The fourth industrial revolution of human society is also known as the“world’s new technological revolution,”which has brought human society into the information age and has had an extremely important impact on eco... The fourth industrial revolution of human society is also known as the“world’s new technological revolution,”which has brought human society into the information age and has had an extremely important impact on economic development and educational reform.In the information age,economic development and wealth creation are dominated by the acquisition,mastery,distribution,and utilization of information instead of capital.Therefore,the cultivation of talents is very important,and educational reform is imperative with the rise of the world’s new technological revolution. 展开更多
关键词 world’s new technological revolution information age Economic development Educational reform
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Research on Accurate Information Pushing Based on Human Network 被引量:1
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作者 Meijie Yang Yu Wang Xiaorong Hou 《Social Networking》 2017年第2期181-196,共16页
Based on the social network analysis methods and human network, this paper randomly selected 44 students (31 males and 13 females) as the research objects, and it used the UCINET software to analyze the friendship bet... Based on the social network analysis methods and human network, this paper randomly selected 44 students (31 males and 13 females) as the research objects, and it used the UCINET software to analyze the friendship between them of which 43 used WeChat and 44 used QQ, and it also used the tool Netdraw to visualize the network sociogram. By mining the four aspects of density, accessibility, centrality, block model, the results demonstrated that QQ social network and WeChat social network existed the phenomenon of small world, leaders and subgroups, and the key nodes of QQ human network were more than WeChat network. Through using the key nodes, it can push the precise and efficient information and improve the accuracy of information transmission and impact among network members. 展开更多
关键词 Social NETWORK Analysis HUMAN NETWORK Small world SUBGROUP Key Nodes: PRECISE and Efficient information information Transmission
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Evolution and Development of the Information Concept in Biological Systems: From Empirical Description to Informational Modeling of the Living Structures 被引量:2
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作者 Florin Gaiseanu 《Journal of Philosophy Study》 2021年第7期501-516,共16页
With the purpose to smooth the way of a correct understanding of information concepts and their evolution,in this paper,is discussed the evolution and development of the concept of information in biological systems,sh... With the purpose to smooth the way of a correct understanding of information concepts and their evolution,in this paper,is discussed the evolution and development of the concept of information in biological systems,showing that this concept was intuitively perceived even since ancient times by our predecessors,and described according to their language level of that times,but the crystallization of the real meaning of information is an achievement of our nowadays,by successive contribution of various scientific branches and personalities of the scientific community of the world,leading to a modern description/modeling of reality,in which information plays a fundamental role.It is shown that our reality can be understood as a contribution of matter/energy/information and represented/discussed as the model of the Universal Triangle of Reality(UTR),where various previous models can be suggestively inserted,as a function of their basic concern.The modern concepts on information starting from a theoretic experiment which would infringe the thermodynamics laws and reaching the theory of information and modern philosophic concepts on the world structuration allow us to show that information is a fundamental component of the material world and of the biological structures,in correlation with the structuration/destructuration processes of matter,involving absorption/release of information.Based on these concepts,is discussed the functionality of the biologic structures and is presented the informational model of the human body and living structures,as a general model of info-organization on the entire biological scale,showing that a rudimentary proto-consciousness should be operative even at the low-scale biological systems,because they work on the same principles,like the most developed bio-systems.The operability of biologic structures as informational devices is also pointed out. 展开更多
关键词 empirical models on material/energy/ideas world structuration/destructuration absorption/release of information information in biological systems matter/energy/information UTR informational system of human body and living structures informational devices
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Factors Influencing the Successful Adoption of Human Resource Information System: The Content of Aqaba Special Economic Zone Authority
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作者 Hisham Al-Mobaideen Sattam Allahawiah Eman Basioni 《Intelligent Information Management》 2013年第1期1-9,共9页
This study examines the key factors that have impact on the successful adoption of Human Resource Information System (HRIS) within the Aqaba Special Economic Zone Authority (ASEZA)/Jordan. In order to accomplish the p... This study examines the key factors that have impact on the successful adoption of Human Resource Information System (HRIS) within the Aqaba Special Economic Zone Authority (ASEZA)/Jordan. In order to accomplish the purpose of the study four critical factors are inquired. So, four critical factors are inquired: First, TAM Model (Perceived Ease of Use (PEOU) and Perceived Usefulness (PU)). Second, Information Technology Infrastructure (ITI). Third, Top Management Support (TMS). Finally, Individual Experience with Computer (IEC). The research model was applied to collect data from the questionnaires answered by 45 users of HRIS as a source of primary data, based on a convenience sample the response rate was about 91%. In addition, the results were analyzed by utilizing the Statistical Package for Social Software (SPSS). Furthermore, the findings were analyzed;multiple Regression analysis indicated that all research variables have significant relationship on successful adoption of HRIS. The findings indicated IT infrastructures have a positive and significant effect on the successful adoption of HRIS. But there is no significant of PU, PEOU, TMS, and IEC on the successful adoption of HRIS. Finally, the results indicated that no significant statistical differences of demographic characteristics on HRIS adoption. Depending on the research’s findings;the researchers proposed a set of recommendations for better adoption of HRIS in SEZA. 展开更多
关键词 Human Resource information System (HRIS) Aqaba Special Economic Zone AUTHORITY (ASEZA) PERCEIVED USEFULNESS (PU) information Technology Infrastructure (ITI) Top Management Support (TMS) and individual Experience with Computer (IEC)
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Big Data, Transparent World and Individual Freedom
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作者 Huang Xinrong Yi Xin 《Contemporary Social Sciences》 2019年第2期33-42,共10页
Big data technology turns everything into computerized information, so everything has its own data footprint. These footprints come together to form a data world that maps everything. By mining the data world, everyth... Big data technology turns everything into computerized information, so everything has its own data footprint. These footprints come together to form a data world that maps everything. By mining the data world, everything can be calculated and recognized. Our black box world is gradually open and transparent. Everything can be recognized, grasped, and predicted. Although big data may diminish individual privacy and even threaten personal freedom, through the precise portrayal and analysis of big data, people will gradually come to understand the laws of nature and society, and those once hidden in the black box will gradually move from the realm of necessity to the realm of freedom. Big data, therefore, brings a new world of freedom while bringing constraints to individuals. 展开更多
关键词 BID DATA DATA world TRANSPARENT world individuAL FREEDOM
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DEAON: dynamically-evolving active overlay networks for scalable information retrieval
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作者 黄新力 Ma Fanyuan 《High Technology Letters》 EI CAS 2007年第4期413-417,共5页
In this paper, we propose the dynamically-evolving active overlay network (DEAON), which is an efficient, scalable yet simple protocol to facilitate applications of decentralized information retrieval in P2P network... In this paper, we propose the dynamically-evolving active overlay network (DEAON), which is an efficient, scalable yet simple protocol to facilitate applications of decentralized information retrieval in P2P networks. DEAON consists of three novel components : a Desirable Topology Construction and Adaptation algorithm to guide the evolution of the overlay topology towards a small-world-like graph; a Semantic-based Neighbor Selection scheme to conduct an online neighbor ranking; a Topology-aware Intelligent Search mechanism to forward incoming queries to deliberately selected neighbors. We deploy and compare DEAON with other several existing distributed search techniques over static and dynamic environments. The results indicate that DEAON outperforms its competitors by achieving higher recall rate while using much less network resources, in both of the above environments. 展开更多
关键词 active overlay networks information retrieval SEARCH topological properties small world
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Northern Labyrinth—A Key to Time, Space, Information
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作者 Alina Paranina 《Natural Resources》 2013年第4期349-356,共8页
Northern labyrinths are stone constructions of different shapes, dating back to III-I century BC. They mainly appear on capes on peninsulas and islands up to 13-25 metresabove the sea level. Their area begins from Sci... Northern labyrinths are stone constructions of different shapes, dating back to III-I century BC. They mainly appear on capes on peninsulas and islands up to 13-25 metresabove the sea level. Their area begins from Scilly Isles (England) and in the White Sea (Russia). Opinions of scientists concerning their designation are controversial. Assumptions about their practical meaning haven’t been proved: no burials have been found underneath;fishing equipment cannot be located so far from the area of tides. Most of the scientists link labyrinths with the sphere of spiritual culture: sanctuaries, altars, sacred places, schemes of rituals and magical centers. Assumptions about calendar designation link the picture of labyrinth with schemes of orbits of the Sun, the Moon, planets and stars. However they do not explain the application of this technology. The author’s concept is based on the opposite astronomical alignment by the shade of gnomon and considers peculiarities of the geographical space of Northern regions (polar days and white nights). The aim of the research is to prove that the key to decoding the picture of a classic Northern labyrinth is a gnomon located in the centre of the construction. Field research has been conducted on Zayztskiy Island in Solovetskiy Archipelago. Experiments of imitation modeling have been done, analysis of linguistic and toponymic materials, archeological, astronomical, ethnographical and mythological and other sources has been implemented. The research has proved that observations of the shade can help to create a calendar in a shape of a bispiral labyrinth. The structure of labyrinth is convenient for defining the North, dividing daytime and defining geographical altitude of the observation point. Orientation in space and time has become the basis for navigation frame of the territory. A set of stone instruments is the key of a navigation frame of the territory. Life-essential stages of the yearly lighting are reflected in specific geometry shapes of shades. They have been preserved in mythological images of the Sun, solar symbols and modern sign systems. Languages, alphabets, numeric systems can be considered as models of geographical space and have evolved thanks to observations of the light movement. Key results of the research: 1) in the past the Sun used to play the leading role in navigation in the North because reference points of the dark sky were not available for observation;2) Northern labyrinths have been created and used thanks to gnomon;3) gnomon has been in the sphere of sacred knowledge for a long time, it was integrated as sundial 2.5 thousand years ago;4) most symbols of the Sun and the Time are connected with gnomon and labyrinth;5) the Sun, observation tools and results of observations are reflected in models of the world around—navigation, linguistic, toponymical, mythological, sacral and semiotic;6) The universal sense of Time helps to understand a wide range of meanings of a sign of a labyrinth: birth;life stages (status, transitions initiations);space time order;reproduction of the benefits, fertility, abundance;knowledge and forecast;management: law and order;eternity-revival;7) Use of solar navigation in formation of information systems is based on steady ratios “natural process—a geometrical sign (the sum of shadows in one day or year)”, universal opportunities of existential parameters for designation of objects, general availability and vital need of this knowledge. 展开更多
关键词 NORTHERN LABYRINTH Gnomon SUNDIAL COMPASS CALENDAR information world Models Sign Systems
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Information Network System for WDCDS/NCSDI
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作者 Zhao Zhonghe,Chen Huizhong,Tian Feng,Li Weidong,Wang Song,Zhou Kechang,Zhao Wei,and Huang ZhibinNational Center for Seismic Data and Information,SSB,Beijing 100045,China 《Earthquake Research in China》 1997年第2期101-106,共6页
World Data Center-D for Seismology(WDCDS)is a member of the World Data Center System under ICSU and is one of the nine World Data Centers located in China(WDC-D).During the period from 1993 to 1996,an information netw... World Data Center-D for Seismology(WDCDS)is a member of the World Data Center System under ICSU and is one of the nine World Data Centers located in China(WDC-D).During the period from 1993 to 1996,an information network system,called CSDInet,was developed in National Center for Seismic Data and Information(NCSDI)and has become the basic technical supporting system for WDC-D for Seismology.CSDInet consists of four basic parts:computer network center,LAN(Local Area Network),link to Internet,and nationwide PSTN(with dialing-up telephone line)user network.In this paper a "multi-layer multi-mode" management of data flow for this system will be explained and the data and information services will be described. 展开更多
关键词 WORK information Network System for WDCDS/NCSDI SSB data MODE PSTN FTP world WIDE
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WorldView-2影像的红叶松树识别研究 被引量:10
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作者 乔睿 唐娉 +2 位作者 石进 蒋丽雅 李爽 《北京林业大学学报》 CAS CSCD 北大核心 2015年第11期33-40,共8页
危险性林业有害生物每年都会造成大面积的严重的森林灾害发生,给国民经济和林业生态环境带来了巨大损失,及时对其发生发展情况进行监测具有重要意义。本文旨在探讨利用高空间分辨率遥感影像识别红叶松树的可行性,从而为单株木灾害监测... 危险性林业有害生物每年都会造成大面积的严重的森林灾害发生,给国民经济和林业生态环境带来了巨大损失,及时对其发生发展情况进行监测具有重要意义。本文旨在探讨利用高空间分辨率遥感影像识别红叶松树的可行性,从而为单株木灾害监测与防治提供一种快速有效的技术途径。采用World View-2多光谱数据,基于二次型分类器,研究了红叶松树的识别方法。通过Fisher线性判别分析发现,World View-2的红、绿、蓝3个波段蕴含着丰富的红叶松树信息。据此,基于全部8个波段和红、绿、蓝3个波段分别进行了分类,分类精度基本相同。结果表明,仅利用红、绿、蓝3个波段也可以完成红叶松树的识别,从而有效地实现了数据降维,更为我国"高分二号"数据的应用开辟了新领域。由于林相条件的差异性和复杂性,遥感数据分辨率的选择对于单木灾害的识别非常重要,研究发现,2 m分辨率多光谱遥感数据非常适合红叶松树的提取,且从数据时相上来说,最好选取6—9月份的遥感影像,以减少其他变色植被的干扰,提高监测精度和工作效率。 展开更多
关键词 worldView-2多光谱影像 红叶松树 变色立木 遥感监测
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World Wide Web的索引与查询技术 被引量:21
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作者 阳小华 周龙骧 《计算机科学》 CSCD 北大核心 1997年第6期29-34,共6页
1引言 WWW(World Wide Web)是一个由许多称为Web页的超媒体文档组成的集合,这文档用HTML(Hyper Text Markup Language)书写。
关键词 WWW 索引查询 INTERNET网
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基于WorldView-2的薇甘菊信息精细提取 被引量:7
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作者 胡佳 林辉 +3 位作者 孙华 东启亮 范应龙 罗喜华 《中南林业科技大学学报》 CAS CSCD 北大核心 2015年第1期42-49,共8页
及时、准确掌握薇甘菊分布信息成为防控其入侵的关键技术。随着遥感技术的发展,使得采用高分辨率遥感数据快速准确提取薇甘菊分布信息成为可能。以深圳市Worldview-2影像的9个波段为主要信息源,开展了外来入侵物种薇甘菊的信息提取分析... 及时、准确掌握薇甘菊分布信息成为防控其入侵的关键技术。随着遥感技术的发展,使得采用高分辨率遥感数据快速准确提取薇甘菊分布信息成为可能。以深圳市Worldview-2影像的9个波段为主要信息源,开展了外来入侵物种薇甘菊的信息提取分析研究。结果表明:(1)用于识别薇甘菊的最佳波段组合是347组合;(2)Worldview-2影像融合的最优方法是Gram-Schmidt变换;(3)光谱与纹理分析研究得出的辐射亮度值和NDVI值能提取出部分入侵区域,结合第7波段与PC1的反差平均值与3×3卷积核方差可提取完整的薇甘菊入侵范围;(4)信息提取的最佳分割尺度是30,且制图精度达87.6%,用户精度达88.4%。说明采用高分辨率影像特征能提取薇甘菊信息,并实现精细识别。 展开更多
关键词 林业遥感 外来入侵物种 薇甘菊 信息提取 world View-2
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基于WorldWind的移民信息系统设计与应用 被引量:6
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作者 姜仁贵 解建仓 +1 位作者 李建勋 杨明祥 《计算机应用》 CSCD 北大核心 2011年第7期2001-2003,2007,共4页
为了解决水利移民工程中数据量大、管理难、表现效果不佳以及难以支持决策等问题,设计并开发了基于三维地理信息系统World Wind的移民信息系统。对移民信息系统的体系结构与功能模块进行设计,基于WorldWind组件对系统进行开发,实现数字... 为了解决水利移民工程中数据量大、管理难、表现效果不佳以及难以支持决策等问题,设计并开发了基于三维地理信息系统World Wind的移民信息系统。对移民信息系统的体系结构与功能模块进行设计,基于WorldWind组件对系统进行开发,实现数字高程模型(DEM)及影像数据的划分、存储、组织与调度,在此基础上对移民信息进行集成与应用。实例表明,该系统具有较好的扩展性和三维效果。 展开更多
关键词 移民信息系统 worldWind 网络地图服务 移民工程 体系结构 功能模块
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基于World Wind的三维WebGis结构研究 被引量:4
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作者 李涛 张志刚 《煤炭技术》 CAS 北大核心 2010年第10期153-155,共3页
World Wind是一款由美国宇航局和它的合作伙伴以及开源社区,共同开发的三维地理信息系统。WorldWind既是一个可以通过因特网进行高度互动的地理数据浏览系统,又是一个可以独立运行的单机电脑应用程序。World Wind采用一种新颖的方法,为... World Wind是一款由美国宇航局和它的合作伙伴以及开源社区,共同开发的三维地理信息系统。WorldWind既是一个可以通过因特网进行高度互动的地理数据浏览系统,又是一个可以独立运行的单机电脑应用程序。World Wind采用一种新颖的方法,为行星和其它天体提供速度达TB级的影像和高程模式数据服务。World Wind同时又是一款可以为公众提供动态科学数据的地理浏览器,也可以作为一个对陆地、海洋、天空和宇宙进行任务操作的平台。 展开更多
关键词 world WIND WEBGIS 三维地球 地理信息系统
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基于WorldView数据的浙江省铁港牡蛎养殖分布遥感调查 被引量:7
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作者 曹利 顾文俊 +2 位作者 李小恕 化成君 周为峰 《渔业信息与战略》 2016年第4期286-292,共7页
高分辨率卫星遥感影像具有丰富的空间信息和纹理信息,使得采用高分辨率卫星遥感数据快速准确提取牡蛎养殖分布信息成为可能。本文以浙江省象山港铁港海域2009~2011年WorldView遥感影像为数据源,利用人工交互目视解译的方法提取了该区域... 高分辨率卫星遥感影像具有丰富的空间信息和纹理信息,使得采用高分辨率卫星遥感数据快速准确提取牡蛎养殖分布信息成为可能。本文以浙江省象山港铁港海域2009~2011年WorldView遥感影像为数据源,利用人工交互目视解译的方法提取了该区域内牡蛎养殖的浮筏信息,研究了牡蛎养殖分布范围与年度变化情况。结果表明:这3年铁港牡蛎养殖的浮筏数量发生了较大变化,呈现出先快速下降后急剧上升的波动情况,牡蛎养殖区整体空间分布呈西南-东北走向。调查结果显示沿海水产养殖的布局不仅受到自然条件的影响和制约,而且极大程度受到当地水产养殖管理政策的影响,应当开展长期性、周期性以遥感手段为主的监测,加强地方水产养殖管理政策的效果评价,及时调整相应政策和措施。 展开更多
关键词 worldVIEW 牡蛎养殖 信息提取 浮筏
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