Skip to Main content Skip to Navigation
Conference papers

Scale-Adaptable Recrawl Strategies for DHT-based Distributed Web Crawling System

Abstract : Large scale distributed Web crawling system using voluntarily contributed personal computing resources allows small companies to build their own search engines with very low cost. The biggest challenge for such system is how to implement the functionalities equivalent to that of the traditional search engines under a fluctuating distributed environment. One of the functionalities is incremental crawl which requires recrawl each Web site according to the update frequency of each Web site's content. However, recrawl intervals solely calculated from change frequency of the Web sites may mismatch the system's real-time capacity which leads to inefficient utilization of resources. Based on our previous works on a DHT-based Web crawling system, in this paper, we propose two scale-adaptable recrawl strategies aiming to find solutions to the above issue. The methods proposed are evaluated through simulations based on real Web datasets and show satisfactory results.
Document type :
Conference papers
Complete list of metadata

Cited literature [16 references]  Display  Hide  Download

https://hal.inria.fr/hal-01054954
Contributor : Hal Ifip <>
Submitted on : Monday, August 11, 2014 - 10:01:30 AM
Last modification on : Friday, August 11, 2017 - 5:44:18 PM
Long-term archiving on: : Thursday, November 27, 2014 - 10:52:04 AM

File

manuscript-source-10-06-11-NPC...
Files produced by the author(s)

Licence


Distributed under a Creative Commons Attribution 4.0 International License

Identifiers

Citation

Xiao Xu, Weizhe Zhang, Hongli Zhang, Binxing Fang. Scale-Adaptable Recrawl Strategies for DHT-based Distributed Web Crawling System. IFIP International Conference on Network and Parallel Computing (NPC), Sep 2010, Zhengzhou, China. pp.91-105, ⟨10.1007/978-3-642-15672-4_9⟩. ⟨hal-01054954⟩

Share

Metrics

Record views

236

Files downloads

361