Current power systems face significant challenges in supporting large-scale access to new energy sources,and the potential of existing flexible resources needs to be fully explored from the power supply,grid,and custo...Current power systems face significant challenges in supporting large-scale access to new energy sources,and the potential of existing flexible resources needs to be fully explored from the power supply,grid,and customer perspectives.This paper proposes a multi-objective electricity consumption optimization strategy considering the correlation between equipment and electricity consumption.It constructs a multi-objective electricity consumption optimization model that considers the correlation between equipment and electricity consumption to maximize economy and comfort.The results show that the proposed method can accurately assess the potential for electricity consumption optimization and obtain an optimal multi-objective electricity consumption strategy based on customers’actual electricity consumption demand.展开更多
1Since the middle of last century, the world has entered consumer society. Decided by consumerism, hedonic consumption has got popular. Hedonic consumption makes people be personalized during consumption and brings a ...1Since the middle of last century, the world has entered consumer society. Decided by consumerism, hedonic consumption has got popular. Hedonic consumption makes people be personalized during consumption and brings a high degree of prosperity in consumption. But at the same time, for the materialization logic in consumerism, people has been enslaved by substance and involved in the vicious circle about unlimited demand for substance, which brought a series of problems in consumption. Nowadays, sharing consumption is rapidly developing, which leads to the change of consumption values. The application of big data in the consumer area, through bringing "big data sense" and solving information barrier, is one of the most important reasons to cause the change. This change can help to establish a fair consumption environment and harmonious consumption relations, which will make the economic development faster and better展开更多
The ultimate value of cultural production should be realizing human's comprehensive and free development,and deconstructing the ultimate value would result in human alienation.In the era of big data,every domain o...The ultimate value of cultural production should be realizing human's comprehensive and free development,and deconstructing the ultimate value would result in human alienation.In the era of big data,every domain of human's social life,even the mode of thinking,has been transformed significantly.However,when the big data technology entirely penetrates the field of cultural production especially inducts the cultural production depending on the demand forecasting techniques,it would inevitably lead to a worry about value of the cultural production.This paper formulates that the cultural production's essence in the era of big data remains for the purpose of maximizing profit of commercial manipulation based on the modeling analysis of cultural production mechanism in the big data times.If the tendency is not corrected,the two main factors of cultural consumerism prevalence and the instrumental reason dictatorship will gradually deconstruct the ultimate value of cultural production and bring about the alienation of human being.For the sake of avoiding the trend,we should cope with two relationships:one is the people as a means and as a purpose;the other is the instrumental reason and the value rationality,finally giving rise to human's comprehensive and free development rather than human alienation.展开更多
The amount of data that is traveling across the internet today, including very large and complex set of raw facts that are not only large, but also, complex, noisy, heterogeneous, and longitudinal data as well. Compan...The amount of data that is traveling across the internet today, including very large and complex set of raw facts that are not only large, but also, complex, noisy, heterogeneous, and longitudinal data as well. Companies, institutions, healthcare system, mobile application capturing devices and sensors, traffic management, banking, retail, education etc., use piles of data which are further used for creating reports in order to ensure continuity regarding the services that they have to offer. Recently, Big data is one of the most important topics in IT industry. Managing Big data needs new techniques because traditional security and privacy mechanisms are inadequate and unable to manage complex distributed computing for different types of data. New types of data have different and new challenges also. A lot of researches treat with big data challenges starting from Doug Laney’s landmark paper</span><span style="font-family:Verdana;">,</span><span style="font-family:Verdana;"> during the previous two decades;the big challenge is how to operate a huge volume of data that has to be securely delivered through the internet and reach its destination intact. The present paper highlights important concepts of Fifty</span><span style="font-family:Verdana;">-</span><span style="font-family:Verdana;">six Big Data V’s characteristics. This paper also highlights the security and privacy Challenges that Big Data faces and solving this problem by proposed technological solutions that help us avoiding these challenging problems.展开更多
The electric power industry is undergoing profound transformations driven by big data,posing challenges to the traditional power grid marketing management model.These challenges include neglecting market demands,insuf...The electric power industry is undergoing profound transformations driven by big data,posing challenges to the traditional power grid marketing management model.These challenges include neglecting market demands,insufficient data support,and inadequate customer service.The application of big data technology offers innovative solutions for power grid marketing management,encompassing critical aspects such as data collection and integration,storage management,analysis,and mining.By leveraging these technologies,power grid enterprises can precisely understand customer needs,optimize marketing strategies,and enhance operational efficiency.This paper explores strategies for power grid marketing management based on big data,addressing areas such as customer segmentation and personalized services,as well as market demand forecasting and response.Furthermore,it proposes implementation pathways,including essential elements such as organizational structure and team building,data quality and governance systems,training,and cultural development.These efforts aim to ensure the effective application of big data technology and maximize its value.展开更多
针对传统大数据流式计算平台节能策略并未考虑数据处理及传输的实时性问题,首先根据数据流处理的特点与storm集群的结构,建立有向无环图、实例并行度、任务资源分配与关键路径模型。其次结合拓扑执行关键路径与系统性能的分析,提出一种s...针对传统大数据流式计算平台节能策略并未考虑数据处理及传输的实时性问题,首先根据数据流处理的特点与storm集群的结构,建立有向无环图、实例并行度、任务资源分配与关键路径模型。其次结合拓扑执行关键路径与系统性能的分析,提出一种storm平台下工作节点的内存电压调控节能策略(WNDVR-storm,energy-efficient strategy for work node by dram voltage regulation in storm),该策略针对是否有工作节点位于拓扑执行的非关键路径上设计了2种节能算法。最后根据系统数据处理及传输的制约条件确定工作节点CPU使用率与数据传输量的阈值,并对选定的工作节点内存电压做出动态调整。实验结果表明,该策略能有效降低能耗,且制约条件越小节能效率越高。展开更多
在新型电力系统构建过程中,电力客户用电状态识别与评估将成为其参与需求响应、虚拟电厂等新兴业务的重要基础。以保障重要电力客户安全用电为出发点,挖掘应用电力大数据,提出了一种基于层次分析法(analytic hierarchy process,AHP)-优...在新型电力系统构建过程中,电力客户用电状态识别与评估将成为其参与需求响应、虚拟电厂等新兴业务的重要基础。以保障重要电力客户安全用电为出发点,挖掘应用电力大数据,提出了一种基于层次分析法(analytic hierarchy process,AHP)-优劣解距离法(technique for order preference by similarity to an ideal solution,TOPSIS)的重要电力客户用电状态评估方法。首先搭建了基于Hadoop架构的用电大数据分析平台,为大数据分析提供高性能平台支撑。然后从电压、负荷和综合三类维度构建了9项评估指标,用以描述重要电力客户的用电状态。最后采用AHP-TOPSIS算法分别对电压类、负荷类、综合类指标进行分项评估分析,得出了三类指标各自的用电状态评估值,再通过变权重加权求和的方式确定重要电力客户的用电状态评分。经过算例分析和现场验证,证明了模型和算法的合理性、可行性,该方法有助于促进客户故障事后抢修向事前预警转变,具有保障安全用电、支撑精准巡视、服务主动抢修的多重功效。展开更多
作为流式大数据计算的主要平台之一,Storm在设计过程中由于缺乏节能的考虑,导致其存在高能耗与低效率的问题.传统的节能策略并未考虑Storm的性能约束,可能会对集群的实时性造成影响.针对这一问题,设计了资源约束模型、最优线程重分配模...作为流式大数据计算的主要平台之一,Storm在设计过程中由于缺乏节能的考虑,导致其存在高能耗与低效率的问题.传统的节能策略并未考虑Storm的性能约束,可能会对集群的实时性造成影响.针对这一问题,设计了资源约束模型、最优线程重分配模型以及数据迁移模型.进一步提出了Storm平台下的线程重分配与数据迁移节能策略(energy-efficient strategy based on executor reallocation and data migration in Storm,简称ERDM),包括资源约束算法与数据迁移算法.其中,资源约束算法根据集群各工作节点CPU、内存与网络带宽的资源占用率,判断集群是否允许数据的迁移.数据迁移算法根据资源约束模型与最优线程重分配模型,设计了数据迁移的最优化方法.此外,ERDM通过分配线程减少了节点间的通信开销,并根据大数据流式计算的性能与能效评估ERDM.实验结果表明,与现有研究相比,ERDM能够有效降低节点间通信开销与能耗,并提高集群的性能.展开更多
作为目前主流的大数据流式计算平台之一,Storm在设计之初以性能为目的进行研究而忽视了高能耗的问题,但是其高能耗问题已经开始制约着平台的发展.针对这一问题,分别建立了任务分配模型、拓扑信息监控模型、数据恢复模型以及能耗模型,并...作为目前主流的大数据流式计算平台之一,Storm在设计之初以性能为目的进行研究而忽视了高能耗的问题,但是其高能耗问题已经开始制约着平台的发展.针对这一问题,分别建立了任务分配模型、拓扑信息监控模型、数据恢复模型以及能耗模型,并进一步提出了基于Storm平台的数据恢复节能策略(energy-efficient strategy based on data recovery in Storm,DR-Storm),包括吞吐量检测算法与数据恢复算法.其中吞吐量检测算法根据拓扑信息监控模型反馈的拓扑信息计算集群吞吐量,并通过信息反馈判断是否终止整个集群内拓扑的任务.数据恢复算法根据数据恢复模型选择备份节点用于数据存储,并通过拓扑信息监控模型反馈的信息判断集群拓扑是否进行数据恢复.此外,DR-Storm通过备份节点内存恢复集群拓扑内的数据,并根据大数据流式计算的系统延迟与能效评估DR-Storm.实验结果表明:与现有研究成果相比,DR-Storm在减少系统计算延迟、降低集群功率的同时,有效节约了能耗.展开更多
文摘Current power systems face significant challenges in supporting large-scale access to new energy sources,and the potential of existing flexible resources needs to be fully explored from the power supply,grid,and customer perspectives.This paper proposes a multi-objective electricity consumption optimization strategy considering the correlation between equipment and electricity consumption.It constructs a multi-objective electricity consumption optimization model that considers the correlation between equipment and electricity consumption to maximize economy and comfort.The results show that the proposed method can accurately assess the potential for electricity consumption optimization and obtain an optimal multi-objective electricity consumption strategy based on customers’actual electricity consumption demand.
文摘1Since the middle of last century, the world has entered consumer society. Decided by consumerism, hedonic consumption has got popular. Hedonic consumption makes people be personalized during consumption and brings a high degree of prosperity in consumption. But at the same time, for the materialization logic in consumerism, people has been enslaved by substance and involved in the vicious circle about unlimited demand for substance, which brought a series of problems in consumption. Nowadays, sharing consumption is rapidly developing, which leads to the change of consumption values. The application of big data in the consumer area, through bringing "big data sense" and solving information barrier, is one of the most important reasons to cause the change. This change can help to establish a fair consumption environment and harmonious consumption relations, which will make the economic development faster and better
基金Supported by Research Project of Shaanxi Academy of Governance in 2016(YKT16005)West Project of National Social Science Fund(15XKS011)
文摘The ultimate value of cultural production should be realizing human's comprehensive and free development,and deconstructing the ultimate value would result in human alienation.In the era of big data,every domain of human's social life,even the mode of thinking,has been transformed significantly.However,when the big data technology entirely penetrates the field of cultural production especially inducts the cultural production depending on the demand forecasting techniques,it would inevitably lead to a worry about value of the cultural production.This paper formulates that the cultural production's essence in the era of big data remains for the purpose of maximizing profit of commercial manipulation based on the modeling analysis of cultural production mechanism in the big data times.If the tendency is not corrected,the two main factors of cultural consumerism prevalence and the instrumental reason dictatorship will gradually deconstruct the ultimate value of cultural production and bring about the alienation of human being.For the sake of avoiding the trend,we should cope with two relationships:one is the people as a means and as a purpose;the other is the instrumental reason and the value rationality,finally giving rise to human's comprehensive and free development rather than human alienation.
文摘The amount of data that is traveling across the internet today, including very large and complex set of raw facts that are not only large, but also, complex, noisy, heterogeneous, and longitudinal data as well. Companies, institutions, healthcare system, mobile application capturing devices and sensors, traffic management, banking, retail, education etc., use piles of data which are further used for creating reports in order to ensure continuity regarding the services that they have to offer. Recently, Big data is one of the most important topics in IT industry. Managing Big data needs new techniques because traditional security and privacy mechanisms are inadequate and unable to manage complex distributed computing for different types of data. New types of data have different and new challenges also. A lot of researches treat with big data challenges starting from Doug Laney’s landmark paper</span><span style="font-family:Verdana;">,</span><span style="font-family:Verdana;"> during the previous two decades;the big challenge is how to operate a huge volume of data that has to be securely delivered through the internet and reach its destination intact. The present paper highlights important concepts of Fifty</span><span style="font-family:Verdana;">-</span><span style="font-family:Verdana;">six Big Data V’s characteristics. This paper also highlights the security and privacy Challenges that Big Data faces and solving this problem by proposed technological solutions that help us avoiding these challenging problems.
文摘The electric power industry is undergoing profound transformations driven by big data,posing challenges to the traditional power grid marketing management model.These challenges include neglecting market demands,insufficient data support,and inadequate customer service.The application of big data technology offers innovative solutions for power grid marketing management,encompassing critical aspects such as data collection and integration,storage management,analysis,and mining.By leveraging these technologies,power grid enterprises can precisely understand customer needs,optimize marketing strategies,and enhance operational efficiency.This paper explores strategies for power grid marketing management based on big data,addressing areas such as customer segmentation and personalized services,as well as market demand forecasting and response.Furthermore,it proposes implementation pathways,including essential elements such as organizational structure and team building,data quality and governance systems,training,and cultural development.These efforts aim to ensure the effective application of big data technology and maximize its value.
文摘针对传统大数据流式计算平台节能策略并未考虑数据处理及传输的实时性问题,首先根据数据流处理的特点与storm集群的结构,建立有向无环图、实例并行度、任务资源分配与关键路径模型。其次结合拓扑执行关键路径与系统性能的分析,提出一种storm平台下工作节点的内存电压调控节能策略(WNDVR-storm,energy-efficient strategy for work node by dram voltage regulation in storm),该策略针对是否有工作节点位于拓扑执行的非关键路径上设计了2种节能算法。最后根据系统数据处理及传输的制约条件确定工作节点CPU使用率与数据传输量的阈值,并对选定的工作节点内存电压做出动态调整。实验结果表明,该策略能有效降低能耗,且制约条件越小节能效率越高。
文摘在新型电力系统构建过程中,电力客户用电状态识别与评估将成为其参与需求响应、虚拟电厂等新兴业务的重要基础。以保障重要电力客户安全用电为出发点,挖掘应用电力大数据,提出了一种基于层次分析法(analytic hierarchy process,AHP)-优劣解距离法(technique for order preference by similarity to an ideal solution,TOPSIS)的重要电力客户用电状态评估方法。首先搭建了基于Hadoop架构的用电大数据分析平台,为大数据分析提供高性能平台支撑。然后从电压、负荷和综合三类维度构建了9项评估指标,用以描述重要电力客户的用电状态。最后采用AHP-TOPSIS算法分别对电压类、负荷类、综合类指标进行分项评估分析,得出了三类指标各自的用电状态评估值,再通过变权重加权求和的方式确定重要电力客户的用电状态评分。经过算例分析和现场验证,证明了模型和算法的合理性、可行性,该方法有助于促进客户故障事后抢修向事前预警转变,具有保障安全用电、支撑精准巡视、服务主动抢修的多重功效。
文摘作为流式大数据计算的主要平台之一,Storm在设计过程中由于缺乏节能的考虑,导致其存在高能耗与低效率的问题.传统的节能策略并未考虑Storm的性能约束,可能会对集群的实时性造成影响.针对这一问题,设计了资源约束模型、最优线程重分配模型以及数据迁移模型.进一步提出了Storm平台下的线程重分配与数据迁移节能策略(energy-efficient strategy based on executor reallocation and data migration in Storm,简称ERDM),包括资源约束算法与数据迁移算法.其中,资源约束算法根据集群各工作节点CPU、内存与网络带宽的资源占用率,判断集群是否允许数据的迁移.数据迁移算法根据资源约束模型与最优线程重分配模型,设计了数据迁移的最优化方法.此外,ERDM通过分配线程减少了节点间的通信开销,并根据大数据流式计算的性能与能效评估ERDM.实验结果表明,与现有研究相比,ERDM能够有效降低节点间通信开销与能耗,并提高集群的性能.
文摘作为目前主流的大数据流式计算平台之一,Storm在设计之初以性能为目的进行研究而忽视了高能耗的问题,但是其高能耗问题已经开始制约着平台的发展.针对这一问题,分别建立了任务分配模型、拓扑信息监控模型、数据恢复模型以及能耗模型,并进一步提出了基于Storm平台的数据恢复节能策略(energy-efficient strategy based on data recovery in Storm,DR-Storm),包括吞吐量检测算法与数据恢复算法.其中吞吐量检测算法根据拓扑信息监控模型反馈的拓扑信息计算集群吞吐量,并通过信息反馈判断是否终止整个集群内拓扑的任务.数据恢复算法根据数据恢复模型选择备份节点用于数据存储,并通过拓扑信息监控模型反馈的信息判断集群拓扑是否进行数据恢复.此外,DR-Storm通过备份节点内存恢复集群拓扑内的数据,并根据大数据流式计算的系统延迟与能效评估DR-Storm.实验结果表明:与现有研究成果相比,DR-Storm在减少系统计算延迟、降低集群功率的同时,有效节约了能耗.