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Impact of response latency on user behavior in web search

Ioannis Arapakis, Xiao Bai, B. Barla Cambazoglu
2014 Proceedings of the 37th international ACM SIGIR conference on Research & development in information retrieval - SIGIR '14  
Second, we perform an analysis using a large-scale query log obtained from Yahoo web search to observe the potential impact of increasing response latency on the click behavior of users.  ...  However, an in-depth analysis on the interplay between the response latency of web search systems and users' search experience has been missing so far.  ...  CONCLUSIONS We investigated the impact of increasing response latencies on user behavior in web search.  ... 
doi:10.1145/2600428.2609627 dblp:conf/sigir/ArapakisBC14 fatcat:66l7v4yf5va6pksw2qav6msg5m

Measuring and Evaluating TCP Splitting for Cloud Services [chapter]

Abhinav Pathak, Y. Angela Wang, Cheng Huang, Albert Greenberg, Y. Charlie Hu, Randy Kern, Jin Li, Keith W. Ross
2010 Lecture Notes in Computer Science  
Using web search as an exemplary case study, our detailed measurements reveal that a vanilla TCP splitting solution deployed at the satellite DCs reduces the 95 th percentile of latency by as much as 43%  ...  Through careful dissection of the measurement results, we characterize how individual components, including proxy stacks, network protocols, packet losses and network load, can impact the latency.  ...  Impact of Proxy OS: In the course of our experiment, we found that the operating systems on the proxies have a large impact on the latency, as they exhibit very different TCP window behavior.  ... 
doi:10.1007/978-3-642-12334-4_5 fatcat:7swjdmjowrcehdt3ygl6sfxdle

A provider-side view of web search response time

Yingying Chen, Ratul Mahajan, Baskar Sridharan, Zhi-Li Zhang
2013 Proceedings of the ACM SIGCOMM 2013 conference on SIGCOMM - SIGCOMM '13  
Using a large Web search service as a case study, we highlight the challenges that modern Web services face in understanding and diagnosing the response time experienced by users.  ...  We show that search response time (SRT) varies widely over time and also exhibits counterintuitive behavior.  ...  Acknowledgments We thank Cheng Huang, Ritchie Hughes, Mujtaba Khambatti, Venkat Narayanan, Aditya Telidevara, for feedback in the initial stages of the project.  ... 
doi:10.1145/2486001.2486035 dblp:conf/sigcomm/ChenMSZ13 fatcat:zhvdqifqhnasznhuhtugh7logu

A provider-side view of web search response time

Yingying Chen, Ratul Mahajan, Baskar Sridharan, Zhi-Li Zhang
2013 Computer communication review  
Using a large Web search service as a case study, we highlight the challenges that modern Web services face in understanding and diagnosing the response time experienced by users.  ...  We show that search response time (SRT) varies widely over time and also exhibits counterintuitive behavior.  ...  Acknowledgments We thank Cheng Huang, Ritchie Hughes, Mujtaba Khambatti, Venkat Narayanan, Aditya Telidevara, for feedback in the initial stages of the project.  ... 
doi:10.1145/2534169.2486035 fatcat:2jktrbaggvfyxcdq43oga4chwa

An argument for increasing TCP's initial congestion window

Nandita Dukkipati, Tiziana Refice, Yuchung Cheng, Jerry Chu, Tom Herbert, Amit Agarwal, Arvind Jain, Natalia Sutin
2010 Computer communication review  
We show that the average latency of HTTP responses improved by approximately 10% with the largest benefits being demonstrated in high RTT and BDP networks.  ...  The latency of low bandwidth networks also improved by a significant amount in our experiments.  ...  Impact on applications with different characteristics So far we have discussed only Web search latency.  ... 
doi:10.1145/1823844.1823848 fatcat:itbifu4yh5ffneb42efqw5zt7y

Search Result Prefetching Using Cursor Movement

Fernando Diaz, Qi Guo, Ryen W. White
2016 Proceedings of the 39th International ACM SIGIR conference on Research and Development in Information Retrieval - SIGIR '16  
Search result examination is an important part of searching. High page load latency for landing pages (clicked results) can reduce the efficiency of the search process.  ...  Balancing the costs in prefetching particular results against the benefits in reduced latency to searchers represents the search result prefetching challenge.  ...  The remainder of this paper is structured as follows. Section 2 describes related work in areas such as prefetching, the impact of response latency on user engagement, and mouse cursor monitoring.  ... 
doi:10.1145/2911451.2911516 dblp:conf/sigir/DiazGW16 fatcat:styflimtq5aexcvwmovsfscibm

Ten Blue Links on Mars

Charles L.A. Clarke, Gordon V. Cormack, Jimmy Lin, Adam Roegiest
2017 Proceedings of the 26th International Conference on World Wide Web - WWW '17  
On Earth, users are accustomed to nearly instantaneous responses from web services. Is it possible to overcome orders-of-magnitude longer latency to provide a tolerable user experience on Mars?  ...  In this paper, we formulate the searching from Mars problem as a tradeoff between "effort" (waiting for responses from Earth) and "data transfer" (pre-fetching or caching data on Mars).  ...  To simulate the impact of caching pages on Mars, we require some assumptions about user behavior in addition to the actual behavior captured in the log.  ... 
doi:10.1145/3038912.3052625 dblp:conf/www/ClarkeCLR17 fatcat:66emijnoxzdqtbgn5eabseyyim

Slow Search

Jaime Teevan, Kevyn Collins-Thompson, Ryen W. White, Susan T. Dumais, Yubin Kim
2013 Proceedings of the Symposium on Human-Computer Interaction and Information Retrieval - HCIR '13  
Research suggests that even slightly higher retrieval latency by Web search engines can lead to dramatic decreases in users' perceptions of result quality and engagement with the search results.  ...  While users have come to expect rapid responses from search engines, recent advances in our understanding of how people find information suggest that there are scenarios where a search engine could take  ...  To further understand how query task impacts behavior, we look at the impact that search engine response time has for navigational and informational query types.  ... 
doi:10.1145/2528394.2528395 dblp:conf/hcir/TeevanCWDK13 fatcat:3kt5j7fhhrgevkz3xiiviescia

Measurement and Modeling of A Web-based Question Answering System

Chunyi Peng, Zaoyang Gong, Guobin Shen
2006 2006 1st IEEE Workshop on Hot Topics in Web Systems and Technologies  
In this paper, we perform a measurement study of a popular, large scale web-QA system, i.e. iAsk, and systematically investigate various behavior patterns and the system performance.  ...  The framework reveals that the QoS of a web-QA system actually heavily depends on three key factors: the user scale, user reply probability and a system design artifact (related to webpage layout).  ...  Therefore, user behavior have a profound impact on the QA system's performance. A good understanding of user behavior will provide meaningful hints for improving the web-QA system.  ... 
doi:10.1109/hotweb.2006.355265 dblp:conf/hotweb/PengGS06 fatcat:hgst3nsf2famxjdvzkgyuxy43q

Ten Blue Links on Mars [article]

Charles L. A. Clarke, Gordon V. Cormack, Jimmy Lin, Adam Roegiest
2016 arXiv   pre-print
On Earth, users are accustomed to nearly instantaneous response times from search engines.  ...  Is it possible to overcome orders-of-magnitude longer latency to provide a tolerable user experience on Mars?  ...  To simulate the impact of caching pages on Mars, we require some assumptions about user behavior in addition to the actual behavior captured in the log.  ... 
arXiv:1610.06468v1 fatcat:467noyextfblbemejewjirjyqa

Prefetching the means for document transfer: a new approach for reducing Web latency

Edith Cohen, Haim Kaplan
2002 Computer Networks  
User-perceived latency is recognized as the central performance problem in the Web. We systematically measure factors contributing to this latency, across several locations.  ...  We chose to focus on these requests since search-engines and Web-portals sites typically invest considerable effort to provide low-latency high-quality service.  ...  ACKNOWLEDGMENTS The pre-connecting technique was conceived in a joint discussion with Uri Zwick. We thank Jeff Mogul and Rob Calderbank for their comments on an early version of this manuscript.  ... 
doi:10.1016/s1389-1286(02)00184-6 fatcat:cmy5voigzzgexaj3pclxytib6a

Comprehensive Characterization of an Open Source Document Search Engine

Zacharias Hadjilambrou, Marios Kleanthous, Georgia Antoniou, Antoni Portero, Yiannakis Sazeides
2019 ACM Transactions on Architecture and Code Optimization (TACO)  
The article describes in detail the architecture, functionality, and micro-architectural behavior of the search engine, and investigates prominent online document search research issues.  ...  In particular, we study how intra-server index partitioning affects the response time and throughput, explore the potential use of low power servers for document search, and examine the sources of performance  ...  ACKNOWLEDGMENTS This work was partly supported by the Ministry of Education, Youth and Sports of the National Programme for Sustainability II (NPU II) under the project "IT4Innovations excellence in science-LQ1602  ... 
doi:10.1145/3320346 fatcat:eujv3tkxlrdnbmrkcxct4mcikq

Octopus-Man: QoS-driven task management for heterogeneous multicores in warehouse-scale computers

Vinicius Petrucci, Michael A. Laurenzano, John Doherty, Yunqi Zhang, Daniel Mosse, Jason Mars, Lingjia Tang
2015 2015 IEEE 21st International Symposium on High Performance Computer Architecture (HPCA)  
However, it is an open question as how to deliver energy reduction while ensuring the quality of service (QoS) of latency-sensitive webservices running on such heterogeneous multicores in warehousescale  ...  Our evaluation using web-search and memcached running on a real-system Intel heterogeneous prototype demonstrates that Octopus-Man improves energy efficiency by up to 41% (CPU power) and up to 15% (system  ...  Fig. 1 : 1 Throughput per watt of web-search on wimpy cores at various load levels (normalized to brawny cores) Fig. 2 : 2 90th percentile query latency of web-search on wimpy vs. brawny cores at various  ... 
doi:10.1109/hpca.2015.7056037 dblp:conf/hpca/PetrucciLDZMMT15 fatcat:4g575rbnbracnbgfwwaxf4nyly

Characterization of real workloads of web search engines

Huafeng Xi, Jianfeng Zhan, Zhen Jia, Xuehai Hong, Lei Wang, Lixin Zhang, Ninghui Sun, Gang Lu
2011 2011 IEEE International Symposium on Workload Characterization (IISWC)  
Understanding the behaviors of web search engines, therefore, is becoming increasingly important to the design and deployment of data center systems hosting search engines.  ...  In this paper, we study three search query traces collected from real world web search engines in three different search service providers.  ...  To better understand the dynamic behavior of web search engines, we also compare Search with five other types of benchmarks.  ... 
doi:10.1109/iiswc.2011.6114193 dblp:conf/iiswc/XiZJHWZSL11 fatcat:wnysb3bisfgphpq6vjhvtcgghq

Leveraging Web Prefetching Systems with Data Deduplication

Pedro Neves, Paulo Ferreira, Joao Barreto
2013 2013 IEEE 12th International Symposium on Network Computing and Applications  
The continued rise in internet users and the ever-greater complexity of Web content degrade userperceived latency in the Web.  ...  latency in the Web.  ...  Nevertheless, one notable example is the Google Search Web site, in which the top hit for a search query is prefetched in the background while the search results are presented to the user [21] .  ... 
doi:10.1109/nca.2013.47 dblp:conf/nca/NevesFB13 fatcat:mdrqmo32cnfu5obmhpx2tvlauq
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