Flood disasters as Climate change hazards are common in developing countries, particularly in communities along the river Gambia. Local communities, for instance, had their local coping strategies that enabled them to...Flood disasters as Climate change hazards are common in developing countries, particularly in communities along the river Gambia. Local communities, for instance, had their local coping strategies that enabled them to stay in their communities even amid these ordeals, and climate change disaster threats. This work strives to understand flood impacts and the local peoples’ adaptation or coping strategies along the River Gambia basin. A community-based cross-sectional research study of 422 research participants of which 294 are males (69.7%) and females 128 (30.3%), and a focus group discussion of 10 groups which comprised 5 female groups and 5 male groups respectively found that 98.6% of the households experienced floods in their community, and 70.6% experienced flood in their houses, 2.1% have impending flood information and 88.4% do not know evacuation centres. The majority of the households had some local coping strategies, but they acknowledged their insufficient effectiveness. The result also shows that the impact of floods on farmlands, roads, buildings, and livestock was greatly felt. Coping strategies such as sandbags, raised elevations, contour bonds, dikes, and buildings on highlands were all found to be common mechanisms the local people used. The study opines that floods affect communities, but the effects vary depending on individual assets.展开更多
Feature selection has been widely used in data mining and machine learning.Its objective is to select a minimal subset of features according to some reasonable criteria so as to solve the original task more quickly.In...Feature selection has been widely used in data mining and machine learning.Its objective is to select a minimal subset of features according to some reasonable criteria so as to solve the original task more quickly.In this article,a feature selection algorithm with local search strategy based on the forest optimization algorithm,namely FSLSFOA,is proposed.The novel local search strategy in local seeding process guarantees the quality of the feature subset in the forest.Next,the fitness function is improved,which not only considers the classification accuracy,but also considers the size of the feature subset.To avoid falling into local optimum,a novel global seeding method is attempted,which selects trees on the bottom of candidate set and gives the algorithm more diversities.Finally,FSLSFOA is compared with four feature selection methods to verify its effectiveness.Most of the results are superior to these comparative methods.展开更多
Climate change has profound implications for managing freshwater resources and species dependent on those resources. Water is an essential component of the life support system of the earth, and a basic resource for so...Climate change has profound implications for managing freshwater resources and species dependent on those resources. Water is an essential component of the life support system of the earth, and a basic resource for socio-economic development. The Great Ruaha River Catchment Area is a dynamic and complex ecosystem requiring inclusion climate change adaptation in the management of the freshwater and natural resources available to reduce the severity of climate change impacts. Rainfall has decreased considerably during the last 10 - 30 years, and characterised by high interannual variability, seasonal shifts and variable seasonal distribution with unpredictable onset and ending of rains and shortened growing seasons. Temperature has increased considerably during this period causing increased evapotranspiration losses and incidences of pest and diseases. The freshwater of Ruaha River and it tributaries are vulneable to changing climate, such as drought, which can negatively impact on the livelihoods of the people through de- creased crop and livestock production, and on local biodiversity. The changing climate has had negative impacts on, among other aspects, land use and water shortages for irrigation, livestock and domestic uses. This has compelled riparian communities in the catchment to devises coping strategies including practicing irrigation to provide supplementary water to crops, using drought tolerant crop varieties, rationing of irrigation water in farmlands, wetland cultivation, and diversification to non-agricultural activities. Despite the existence of many indicators used for local climate forecasting, there are limitations to local adaptation, including among others, poverty, institutional aspects and limited integration of climate adaptation in various sectors. The bulk of indigenous knowledge could be integrated into formal adaptation planning, and may be important components of environmental conservation at the local level.展开更多
As a carrier of traditional techniques and local culture, local landscape contains profound theofies of garden aesthetics and landscape ecology. Creating a local landscape is not only important to modem urban ...As a carrier of traditional techniques and local culture, local landscape contains profound theofies of garden aesthetics and landscape ecology. Creating a local landscape is not only important to modem urban landscape design and utban planning, but also an. important part of the construction of current distinctive towns. Based on the analysis of the application of native landscape elements in urban gardens, the research points out the innovative design and application of the local landscape elements. Moreover it uses the artistic expression techniques of extracting the native landscape elements into the garden landscape as the entry point, and analyzes the designing principle and planning key points in die ptocess of creating a local landscape of the cultural square park in charactenstic towns, providing constructing and protecting strategies for creating a landscape of rural landscapes in China's landscape planning.展开更多
With the swift growth of China's economy in recent years, the number of multinational corporations in China is increasing rapidly, and during their process of management, the strategy of human resources localizati...With the swift growth of China's economy in recent years, the number of multinational corporations in China is increasing rapidly, and during their process of management, the strategy of human resources localization is widely used. Though there are a lot of scholars who have done research on advantages, negative effects and implementation of this strategy, there are still not enough studies have been made about the enlightenments for China. Therefore, this study aims at representing more modern and advanced opinions by stating superiority and inferior of multinational corporations' human resources localization strategy on the basis of predecessors' studies. This study is based on multinational corporation human resources localization theories, research on certain multinational corporations located in China, and data and information from relative journals, books,newspapers and internet. The conclusion of this paper is as below: though human resources localization strategy has obvious advantages, the management shall control the"degree"in case of"over-localization"; secondly, as Chinese corporations, it is necessary to possess their own core technology instead of being a manufacturer only; and last, Chinese corporations should learn from foreign multinationals that balancing between globalization and localization, to maximize the benefits.展开更多
Amazon Germany has formulated a series of marketing strategies based on the shopping habits of German consumers and it has achieved success.This article summarizes the current marketing strategies of Amazon in Germany...Amazon Germany has formulated a series of marketing strategies based on the shopping habits of German consumers and it has achieved success.This article summarizes the current marketing strategies of Amazon in Germany,and explores the key factors for the success of this marketing strategy.By comparing with other e-commerce platforms,this article critically analyzes the innovation and deficiency of Amazon in Germany.展开更多
In the contemporary society, localization and globalization are inseparable. For multinational corporations, enhancing the relationship between multinational corporations and host countries can achieve a win-win situa...In the contemporary society, localization and globalization are inseparable. For multinational corporations, enhancing the relationship between multinational corporations and host countries can achieve a win-win situation. Through analyze the localization management strategies in the field of menu, slogan,ingredient and public relationship of of KFC and conclude that Chinese culture, the needs, preference of Chinese people, good government relationship is more important to multinational corporations.展开更多
Local colleges are the main bodies of Chinese higher education. Their proper and sound development will do good to the development of local economy and society. Compared with famous and key universities, their develop...Local colleges are the main bodies of Chinese higher education. Their proper and sound development will do good to the development of local economy and society. Compared with famous and key universities, their development is in inferior state and there are lots of problems. This article analyses the problems during their development process, then it puts forward relevant strategies so as to provide reference for the development of local colleges.展开更多
密度峰值聚类(clustering by fast search and find of density peaks,DPC)算法是一种基于密度的聚类算法,它可以发现任意形状和维度的类簇,是具有里程碑意义的聚类算法。然而,DPC算法的样本局部密度定义不适用于同时发现数据集的稠密...密度峰值聚类(clustering by fast search and find of density peaks,DPC)算法是一种基于密度的聚类算法,它可以发现任意形状和维度的类簇,是具有里程碑意义的聚类算法。然而,DPC算法的样本局部密度定义不适用于同时发现数据集的稠密簇和稀疏簇;此外,DPC算法的一步分配策略使得一旦有一个样本分配错误,将导致更多样本的错误分配,产生“多米诺骨牌效应”。针对这些问题,提出一种新的样本局部密度定义,采用局部标准差指数定义样本局部密度,克服DPC的密度定义缺陷;采用两步分配策略代替DPC的一步分配策略,克服DPC的“多米诺骨牌效应”,得到ESDTS-DPC算法。与DPC及其改进算法KNN-DPC、FKNN-DPC、DPC-CE和经典密度聚类算法DBSCAN的实验比较显示,提出的ESDTS-DPC算法具有更好的聚类准确性。展开更多
文摘Flood disasters as Climate change hazards are common in developing countries, particularly in communities along the river Gambia. Local communities, for instance, had their local coping strategies that enabled them to stay in their communities even amid these ordeals, and climate change disaster threats. This work strives to understand flood impacts and the local peoples’ adaptation or coping strategies along the River Gambia basin. A community-based cross-sectional research study of 422 research participants of which 294 are males (69.7%) and females 128 (30.3%), and a focus group discussion of 10 groups which comprised 5 female groups and 5 male groups respectively found that 98.6% of the households experienced floods in their community, and 70.6% experienced flood in their houses, 2.1% have impending flood information and 88.4% do not know evacuation centres. The majority of the households had some local coping strategies, but they acknowledged their insufficient effectiveness. The result also shows that the impact of floods on farmlands, roads, buildings, and livestock was greatly felt. Coping strategies such as sandbags, raised elevations, contour bonds, dikes, and buildings on highlands were all found to be common mechanisms the local people used. The study opines that floods affect communities, but the effects vary depending on individual assets.
基金National Science Foundation of China(Nos.U1736105,61572259,41942017)The authors extend their appreciation to the Deanship of Scientific Research at King Saud University for funding this work through research group no.RGP-VPP-264.
文摘Feature selection has been widely used in data mining and machine learning.Its objective is to select a minimal subset of features according to some reasonable criteria so as to solve the original task more quickly.In this article,a feature selection algorithm with local search strategy based on the forest optimization algorithm,namely FSLSFOA,is proposed.The novel local search strategy in local seeding process guarantees the quality of the feature subset in the forest.Next,the fitness function is improved,which not only considers the classification accuracy,but also considers the size of the feature subset.To avoid falling into local optimum,a novel global seeding method is attempted,which selects trees on the bottom of candidate set and gives the algorithm more diversities.Finally,FSLSFOA is compared with four feature selection methods to verify its effectiveness.Most of the results are superior to these comparative methods.
文摘Climate change has profound implications for managing freshwater resources and species dependent on those resources. Water is an essential component of the life support system of the earth, and a basic resource for socio-economic development. The Great Ruaha River Catchment Area is a dynamic and complex ecosystem requiring inclusion climate change adaptation in the management of the freshwater and natural resources available to reduce the severity of climate change impacts. Rainfall has decreased considerably during the last 10 - 30 years, and characterised by high interannual variability, seasonal shifts and variable seasonal distribution with unpredictable onset and ending of rains and shortened growing seasons. Temperature has increased considerably during this period causing increased evapotranspiration losses and incidences of pest and diseases. The freshwater of Ruaha River and it tributaries are vulneable to changing climate, such as drought, which can negatively impact on the livelihoods of the people through de- creased crop and livestock production, and on local biodiversity. The changing climate has had negative impacts on, among other aspects, land use and water shortages for irrigation, livestock and domestic uses. This has compelled riparian communities in the catchment to devises coping strategies including practicing irrigation to provide supplementary water to crops, using drought tolerant crop varieties, rationing of irrigation water in farmlands, wetland cultivation, and diversification to non-agricultural activities. Despite the existence of many indicators used for local climate forecasting, there are limitations to local adaptation, including among others, poverty, institutional aspects and limited integration of climate adaptation in various sectors. The bulk of indigenous knowledge could be integrated into formal adaptation planning, and may be important components of environmental conservation at the local level.
文摘As a carrier of traditional techniques and local culture, local landscape contains profound theofies of garden aesthetics and landscape ecology. Creating a local landscape is not only important to modem urban landscape design and utban planning, but also an. important part of the construction of current distinctive towns. Based on the analysis of the application of native landscape elements in urban gardens, the research points out the innovative design and application of the local landscape elements. Moreover it uses the artistic expression techniques of extracting the native landscape elements into the garden landscape as the entry point, and analyzes the designing principle and planning key points in die ptocess of creating a local landscape of the cultural square park in charactenstic towns, providing constructing and protecting strategies for creating a landscape of rural landscapes in China's landscape planning.
文摘With the swift growth of China's economy in recent years, the number of multinational corporations in China is increasing rapidly, and during their process of management, the strategy of human resources localization is widely used. Though there are a lot of scholars who have done research on advantages, negative effects and implementation of this strategy, there are still not enough studies have been made about the enlightenments for China. Therefore, this study aims at representing more modern and advanced opinions by stating superiority and inferior of multinational corporations' human resources localization strategy on the basis of predecessors' studies. This study is based on multinational corporation human resources localization theories, research on certain multinational corporations located in China, and data and information from relative journals, books,newspapers and internet. The conclusion of this paper is as below: though human resources localization strategy has obvious advantages, the management shall control the"degree"in case of"over-localization"; secondly, as Chinese corporations, it is necessary to possess their own core technology instead of being a manufacturer only; and last, Chinese corporations should learn from foreign multinationals that balancing between globalization and localization, to maximize the benefits.
文摘Amazon Germany has formulated a series of marketing strategies based on the shopping habits of German consumers and it has achieved success.This article summarizes the current marketing strategies of Amazon in Germany,and explores the key factors for the success of this marketing strategy.By comparing with other e-commerce platforms,this article critically analyzes the innovation and deficiency of Amazon in Germany.
文摘In the contemporary society, localization and globalization are inseparable. For multinational corporations, enhancing the relationship between multinational corporations and host countries can achieve a win-win situation. Through analyze the localization management strategies in the field of menu, slogan,ingredient and public relationship of of KFC and conclude that Chinese culture, the needs, preference of Chinese people, good government relationship is more important to multinational corporations.
文摘Local colleges are the main bodies of Chinese higher education. Their proper and sound development will do good to the development of local economy and society. Compared with famous and key universities, their development is in inferior state and there are lots of problems. This article analyses the problems during their development process, then it puts forward relevant strategies so as to provide reference for the development of local colleges.
文摘蛋白质复合物的检测有助于从分子水平上理解生命的活动过程。针对群智能算法检测蛋白质复合物时假阳/阴性率高、准确率低、种群多样性下降等问题,提出了基于强化学习的离散层级萤火虫算法检测蛋白质复合物(reinforcement learning-based discrete level firefly algorithm for detecting protein complexes,RLDLFA-DPC)。引入强化学习思想提出一种自适应层级划分策略,动态调整层级结构,能有效解决迭代后期种群多样性下降的问题。在层级学习策略中个体向两个优秀层级学习,避免算法陷入局部最优。为了提高蛋白质复合物检测的精度,结合个体环境信息提出自适应搜索半径的局部搜索策略。最后,在酵母蛋白质的4个数据集上,与8种经典的蛋白质复合物检测方法进行对比,验证了该方法的有效性。
文摘密度峰值聚类(clustering by fast search and find of density peaks,DPC)算法是一种基于密度的聚类算法,它可以发现任意形状和维度的类簇,是具有里程碑意义的聚类算法。然而,DPC算法的样本局部密度定义不适用于同时发现数据集的稠密簇和稀疏簇;此外,DPC算法的一步分配策略使得一旦有一个样本分配错误,将导致更多样本的错误分配,产生“多米诺骨牌效应”。针对这些问题,提出一种新的样本局部密度定义,采用局部标准差指数定义样本局部密度,克服DPC的密度定义缺陷;采用两步分配策略代替DPC的一步分配策略,克服DPC的“多米诺骨牌效应”,得到ESDTS-DPC算法。与DPC及其改进算法KNN-DPC、FKNN-DPC、DPC-CE和经典密度聚类算法DBSCAN的实验比较显示,提出的ESDTS-DPC算法具有更好的聚类准确性。