共查询到19条相似文献,搜索用时 203 毫秒
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目前旅游信息数据量庞大却无法满足用户的特定需求,很多不确定因素导致用户评分出现偏差,使推荐结果不准确且实时性差。鉴于此,本文提出构建基于Spark框架的瀑布型融合旅游推荐系统。首先,利用爬虫技术对各大旅游网站景点信息进行爬取和整理,搭建Spark框架读取数据并进行数据清洗和预处理,通过API将景点地理位置转换为经纬度坐标以便后续可视化;其次,设计2个过滤层,第一层采用SimHash算法,该算法能够实现海量数据的快速降维处理,有效节约时间。第二层采用余弦相似度算法并利用TF-IDF计算词频,进而过滤和更新旅游景点推荐数据库,最终形成反馈给用户的推荐数据库;最后,用户从系统推荐的Top-N景点选择自己感兴趣的景点,系统将会对其进行地图可视化,并标注每个省市景点的数量和平均票价,为用户提供智能旅游推荐的完美体验。该系统从用户需求出发,通过分析用户需求文本语义,与旅游数据库进行相似度计算进而获得推荐结果,达到了实时性和准确性的统一,是对旅游推荐系统的补充和完善,具有一定的实用价值。 相似文献
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RUGG旅行效用模型主要应用于评价不同旅行目的地对旅游消费者的旅行效用,本文在该模型基础上构建基于Agent建模中的简单规则,通过旅游产品价值、对旅游地游客时间价值、旅行价格、接待能力和运行成本5项因素综合衡量某一旅游区内旅游产品的旅行效用,以电子门票、电子预定酒店和电子钱包作为电子化旅游产品的具体形式,以定性与定量相结合的方法,探索了不同主体(旅游消费者、旅游企业)采用电子化旅游产品对旅游区旅行效用的影响,以及不同主体在选择电子化旅游产品时会呈现的微观机理和宏观“涌现性”。 相似文献
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杨晓敏 《信息技术与信息化》2022,(3):138-141
近年来,随着我国经济的迅速发展,旅游业始终保持着不断增长的趋势,合理的对旅游路线进行规划就显得尤为重要.首先综述了常用的旅游路线规划算法,然后提出一种基于矩阵分解和蚁群算法的旅游路线规划算法,通过矩阵值分解算法找到用户对景点的感兴趣的程度,即通过梯度下降算法使损失函数最小,得到了评分矩阵.最后根据用户对景点的喜好程度,... 相似文献
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群居性昆虫行为的研究为计算机科学家提供了设计分布式控制和优化算法的有力方法。对以蚁群算法为代表的群集智能的研究已经逐渐成为一个研究热点。蚁群算法在实际的生活中有很大的用处,比如求解旅行商问题,本文介绍了一种求解复杂TSP的蚁群算法,阐述了该算法的基本原理及实现过程,并且在本文中尝试用编码的形式将基本蚁群算法应用到求解旅行商问题中去。 相似文献
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群居性昆虫行为的研究为计算机科学家提供了设计分布式控制和优化算法的有力方法。对以蚁群算法为代表的群集智能的研究已经逐渐成为一个研究热点。蚁群算法在实际的生活中有很大的用处,比如求解旅行商问题,文章介绍了一种求解复杂TSP的蚁群算法,阐述了该算法的基本原理及实现过程,并且在本文中尝试用编码的形式将基本蚁群算法应用到求解旅行商问题中去。 相似文献
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In order to overcome the lacking of tourism information recommendation at the tourism websites,travel review websites and travel websites,a hybrid density clustering approach was proposed to identify scenic hotspot based on the data of geographical coordinates and tour route data.To help users searching high-quality resources and planning an effective tour path,a tour path generation algorithm was designed which contained all the attractions in the scenic area by using the HITS algorithm to evaluate the attraction and improving the traditional ACO algorithm.The multi algorithm comparison experiment was conducted to evaluate the effectiveness of the hot spots and route planning methods.The results show that the method is efficient and practical. 相似文献
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Spatial experiences in route finding, such as the ability of finding low‐traffic routes, exert a significant influence on travel time in big cities; therefore, the spatial experiences of seasoned individuals such as taxi drivers in route finding can be useful for improving route‐finding algorithms and preventing using routes having considerable traffic. In this regard, a spatial experience‐based route‐finding algorithm is introduced through ontology in this paper. To this end, different methods of modeling experiences are investigated. Then, a modeling method is chosen for modeling the experiences of drivers for route finding depending on the advantages of ontology, and an ontology based on the taxi drivers’ experiences is proposed. This ontology is employed to create an ontology‐based route‐finding algorithm. The results are compared with those of Google maps in terms of route length and travel time at peak traffic time. According to the results, although the route lengths of route‐finding method based on the ontology of drivers’ experiences in three cases (from nine cases) are greater than that based on Google maps, the travel times are shorter in most cases, and in some routes, the difference in travel time reaches only 10 minutes. 相似文献
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航路飞行阶段的导航台选择是区域导航(RNAV)运行的主要环节。在采用 DME/DME 导航方式的 RNAV 选台过程中,基于最小定位误差标准差的选择方法是一种传统的选台算法。论文首先分析了基于最小定位误差选择算法在航路飞行阶段的 DME 台站选择性能,然后针对这种算法中导航台切换频繁的问题,提出了一种改进的 DME/DME 导航台优选算法,并通过对比两种选台算法在 A593 航路中的选台结果和导航台切换次数,对区域导航性能进行仿真评估。仿真结果表明,导航台优选算法能够自动选出一对具有更高精度的导航台,并且满足 DME/DME 区域导航要求,在一定程度上减少了导航台的频繁切换,提高了定位结果的连续性。 相似文献
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Immune Algorithm for Solving the Optimization Problems of Computer Communication Networks 总被引:1,自引:0,他引:1
The basic problem in optimizing communication networks is to assign a proper circuit for each origindestination pair in networks so as to minimize the average network delay, and the network optimal route selection model is a multi-constrained 0-1 nonlinear programming problem. In this paper, a new stochastic optimization algorithm, Immune Algorithm, is applied to solve the optimization problem in communication networks. And the backbone network vBNS is chosen to illustrate the technique of evaluating delay in a virtual network. At last, IA is compared with the optimization method in communication networks based on Genetic Algorithm, and the result shows that IA is better than GA in global optimum finding. 相似文献
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低开销的MANET网络按需路由协议 总被引:1,自引:0,他引:1
针对简单泛洪效率低的问题,提出了一个限制洪泛的高效的路由广播算法,通过Euclidean距离来限制路由发现过程中请求分组被转发的次数;研究了减少路由维护开销,并降低路由发现的频率的方法,提出了一个基于节点高度的路由修复与优化算法,该算法使用节点监听来对链路断裂的路由进行修复与优化.基于限制泛洪的高效的路由广播算法和路由修复优化算法,提出了一种新的低开销的MANET网络按需路由协议LOOR(low overhead on-demand routing).仿真结果表明,新协议增强了路由的顽健性,减少了路由跳数,降低了路由发现的频率,提高了数据分组递送率,并显著地降低了路由控制开销. 相似文献
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The present work is a fuzzy logic based route optimization in multihomed mobile network. The mobile routers in the mobile
network use best egress determination algorithm to identify its best egress interface for each service type supported by the
mobile network dynamically and send the best egress interface per service type information to a local fixed node inside the
mobile network. The mobile network node sends a request message to the local fixed node inside the mobile network to initiate
a session. The local fixed node uses best route selection algorithm to select an optimal route from mobile network to Internet
for the desired service type of the mobile network node. The performance of the proposed work is evaluated using NEMO_SIM
simulator which is implemented using JAVA. Results based on a detailed performance evaluation study are also presented to
demonstrate the efficacy of the proposed scheme. 相似文献
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旅游的生产经营和消费将会高度依靠信息资源,信息成为了旅游发展的重要影响因素。中国旅游现在已经引入国民消费为主的大众旅游发展的新阶段。旅游电子商务特别是OTF在线旅游预定是旅游产业中间应用最为广泛也是最为活跃的领域。 相似文献