Information retrieval (IR) has changed considerably in recent years with the expansion of the
World Wide Web and the advent of modern and inexpensive graphical user interfaces and …

Continuous growth of the Web and user bases forces web search engine companies to
make costly investments on very large compute infrastructures. The scalability of these …

Web crawlers visit internet applications, collect data, and learn about new web pages from
visited pages. Web crawlers have a long and interesting history. Early web crawlers …

In the ocean of Web data, Web search engines are the primary way to access content. As the
data is on the order of petabytes, current search engines are very large centralized systems …

In today's scenario, World Wide Web (WWW) is flooded with huge amount of information.
Due to growing popularity of the internet, finding the meaningful information among billions …

Web search engines are often implemented as centralized systems. Designing and
implementing a Web search engine in a distributed environment is a challenging …

分析了广域网分布式Web 爬虫相对于局域网爬虫的诸多优势, 提出了广域网分布式Web
爬虫的3 个核心问题: Web 划分, Agent 协同和Agent 部署. 围绕这3 个问题 …

A collaborative crawler is a group of crawling nodes, in which each crawling node is
responsible for a specific portion of the web. We study the problem of collecting geographi …

Information retrieval is the science concerned with the effective and efficient retrieval of
documents starting from their semantic content. It is employed to fulfill some information …

As the wealth of information available on the web keeps growing, being able to harvest
massive amounts of data has become a major challenge. Web crawlers are the core …