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The present models about Internet marketing, to a certain extent, have some limits, which cannot systematically reveals the process and characteristics of Internet marketing. Based on the theories of traditional marketing and Internet marketing, the paper builds the model of Internet marketing relationship that describes consumer's purchase decision process and firm's Internet marketing process, and...
Congestion control has become a research hotspot, because of the rapid growth of Internet. Random Early Detection (RED) algorithm is the most effective active queue management (AQM) techniques. This paper describes RED algorithm and its derivatives then presents a new algorithm. The packet-marking probability linearly with the average queue length is improper for the arrival packet at the gateway...
Hadoop Distributed File System (HDFS) has been widely adopted to support Internet applications because of its reliable, scalable and low-cost storage capability. Blue Sky, one of the most popular e-Learning resource sharing systems in China, is utilizing HDFS to store massive courseware. However, due to the inefficient access mechanism of HDFS, access latency of reading files from HDFS significantly...
The geospatial data such as ocean in situ observing data, remotely sensed data, and model output are produced in a distributed geographical environment. These data have significant scientific value to construct Digital Ocean. However, given the relatively high temporal frequency and the intrinsic spatial nature of the data, the data set is relatively difficult to use directly by Digital Ocean system...
Caching can improve the browser's efficiency, this paper proposes one distributed sharing model of the browser cache: each end-host's address and the Web site URL address are mapped to the identical key space, the storing information of the shared cache mapped to key k is saved on the same key k mapped end-host; it also presents a distributed lookup protocol with a constant O(1) hop per lookup request,...
Nowadays, there are increasing amount of data fields of tide and tidal current gained from ocean dynamical environment real-time stereo monitoring platform, model calculation and numerical simulation. Collaborative visualization of these data fields on the internet is becoming increasingly important for the utility of data. In this paper, we summarize the characters of tide and tidal current data...
This paper introduces an automatic control system based on Advantech WebAccess for intelligent buildings and using the renewable energy source solar energy to improve the working efficiency and realize the distributed control and centralized management of buildings. This system uses 485 Net and EtherNet as the communication network. The monitor and control of equipments is implemented on ADAM-5510/TCP...
Topic-specific crawler aims to selectively seek out pages that are relevant to a pre-defined set of topics, rather than to exploit all regions of the Web. It is important for domain-specific resource discovery. Topic-specific crawlers yield good recall as well as good precision by restricting themselves to a specific domain from web pages. In this paper, we present an integrated topic-specific crawling...
The rapid growth of the World-Wide Web poses unprecedented scaling challenges for general-purpose crawlers. Focused crawler is developed to collect relevant web pages of interested topics form the Internet. The PageRank algorithm is used in ranking web pages. It estimates the page 's authority by taking into account the link structure of the Web. However, it assigns each outlink the same weight and...
In this paper, we present a discussion of the design and implementation of a cluster of workstations and PCs as an Internet server. Our design features desirable characteristics in terms of system scalability, performance, reliability, and security. Issues like how to effectively perform dynamic load balancing, and how seamless scalability is achieved are discussed. Specially, we propose a new scheme...
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