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Understanding the Impact of the Access Technology: The Case of Web Search Services

机译：了解访问技术的影响：以Web搜索服务为例

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摘要

In this paper, we address the problem of comparing the performance perceived by end users when they use different technologies to access the Internet. We focus on three key technologies: Cellular, ADSL and FTTH. Users primarily interact with the network through the networking applications they use. We tackle the comparison task by focusing on Web search services, which are arguably a key service for end users. We first demonstrate that RTT and packet loss alone are not enough to fully understand the observed differences or similarities of performance between the different access technologies. We then present an approach based on a fine-grained profiling of the data time of transfers that sheds light on the interplay between service, access and usage, for the client and server side. We use a clustering approach to identify groups of connections experiencing similar performance over the different access technologies. This technique allows to attribute performance differences perceived by the client separately to the specific characteristics of the access technology, behavior of the server, and behavior of the client.
机译：在本文中，我们解决了比较最终用户使用不同技术访问Internet时感知性能的问题。我们专注于三种关键技术：蜂窝，ADSL和FTTH。用户主要通过他们使用的网络应用程序与网络交互。我们通过专注于Web搜索服务来解决比较任务，Web搜索服务可以说是最终用户的关键服务。我们首先证明，仅RTT和数据包丢失不足以完全理解所观察到的不同接入技术之间的性能差异或相似性。然后，我们提出了一种基于对传输数据时间进行细粒度分析的方法，该方法揭示了客户端和服务器端服务，访问和使用之间的相互作用。我们使用群集方法来识别在不同的访问技术上性能相似的连接组。此技术允许将客户端感知到的性能差异分别归因于访问技术，服务器行为和客户端行为的特定特征。

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