Pattern mining in tourist attraction visits through association rule learning on Bluetooth tracking data: A case study of Ghent,Belgium

The rapid evolution of information and positioning technologies, and their increasing adoption in tourism management practices allows for new and challenging research avenues. This paper presents an empirical case study on the mining of association rules in tourist attraction visits, registered for 15 days by the Bluetooth tracking methodology. This way, this paper aims to be a methodological contribution to the field of spatiotemporal tourism behavior research by demonstrating the potential of ad-hoc sensing networks in the non-participatory measurement of small-scale movements. An extensive filtering procedure is followed by an exploratory analysis, analyzing the discovered associations for different visitor segments and additionally visualizing them in ‘visit pattern maps’. Despite the limited duration of the tracking period, we were able to discover interesting associations and further identified a tendency of visitors to rarely combine visits in the center with visits outside of the city center. We conclude by discussing both the potential of the employed methodology as well as its further issues.     

矿业权价款只是国家出资勘查资本权益的回报——对矿业权价款制度扩大化的思考及建议

我国的矿业权价款制度是在特定历史条件下建立的,其本质是国家出资勘查资本权益的回报。近年来,矿业权价款制度的法定内涵已被全面突破,且愈演愈烈。矿业权价款制度扩大化,不仅直接干扰了以"维护国家对矿产资源的财产权益"为基本功能的资源补偿费制度的实施,而且已成为急功近利的饮鸩止渴之举,"以矿生财"的托词,实际上也是矿业权市场秩序混乱的源头之一。矿业权价款制度扩大化其深层次原因是理论混淆和认识误区,亟待进行理性思考并予以整顿规范。     

综采设备井下倒安装技术研究与应用

根据生产系统、环境条件等实际情况,为及时周转综采工作面支架设备,加快新老工作面收尾和安装,缓解衔接被动局面和提高经济效益,通过认真分析和精心组织,在同一生产区域实现液压支架在井下的倒装,取得了较好的效果,为百年林西矿业公司今后的生存发展,积累了实践经验。     

非常规采煤工艺的应用与革新

结合国内、外采煤方法的改革发展,分析我国煤矿尤其是小型煤矿开采技术的条件,总结了我国小煤矿开采适用的采矿新技术。     

对煤矿企业工会工作方法的改革与创新

现阶段,我国的煤矿企业的改制工作不断推广,企业的工会工作的方法、内容、目的以及对象都发生了很大的变化。本文对于煤矿企业工会工作方法的改革与创新进行了分析与探讨。     

开放式公园管理是促进社会和谐矿区稳定发展的有效途经

开放式公园管理是黑龙江大庆石化公司园林公司在落实党的十六届四中全会提出的构建社会主义＂和谐社会＂新理念的具体体现。也是落实党的十七大精神和科学发展观,创建和谐矿区,保持社会稳定的真实写照。通过调研和社会实践表明,开放式的公园管理是促进社会和谐矿区稳定发展的有效途经。     

International Market Segmentation and Cross-Export Strategies Development Case Study: Iranian Furniture Industry

ABSTRACT

By developing an international market and significant differences between countries in this regard, segmentation becomes an increasingly important concept in marketing. In this article, the international market of Iranian furniture industry is segmented and cross-exporting strategies are developed to increase the market share of Iranian furniture in each segment. To achieve this, two distance functions are introduced based on correlation between export groups to cluster countries with k-means algorithm. After market segmentation for increasing sales in each segment, cross-exporting strategies are predicted by extracting association rules in each segment based on Apriori algorithm to set export baskets.     

A gossip based information fusion protocol for distributed frequent itemset mining

The computational complexity, huge memory space requirement, and time-consuming nature of frequent pattern mining process are the most important motivations for distribution and parallelization of this mining process. On the other hand, the emergence of distributed computational and operational environments, which causes the production and maintenance of data on different distributed data sources, makes the parallelization and distribution of the knowledge discovery process inevitable. In this paper, a gossip based distributed itemset mining (GDIM) algorithm is proposed to extract frequent itemsets, which are special types of frequent patterns, in a wireless sensor network environment. In this algorithm, local frequent itemsets of each sensor are extracted using a bit-wise horizontal approach (LHPM) from the nodes which are clustered using a leach-based protocol. Heads of clusters exploit a gossip based protocol in order to communicate each other to find the patterns which their global support is equal to or more than the specified support threshold. Experimental results show that the proposed algorithm outperforms the best existing gossip based algorithm in term of execution time.     

论矿业公司机电设备维修管理

设备维修是确保设备正常运行的主要手段,是煤炭企业的一项重要管理工作,是生产费用支出的主要部分。阐述了机电设备维修体制的发展过程和机电设备维修方式的类定,并对我国矿业公司机电设备维修管理方面问题提出对策。