SharpSpider: A Continuous, Parallel and Distributed Spider

Name: SharpSpider: A Continuous, Parallel and Distributed Spider
Brand: VDM Verlag Dr. Müller
SKU: 9783639148862
Price: 248.69 PLN
Availability: InStock

Design and implementation of software to navigate the Web autonomously

Autor: Marco Palomino

Język:

Oprawa: Miękka

Wydawca: VDM Verlag Dr. Müller

Dostępność: Na zamówienie

Wysyłamy za 17-27 dni

248.69 zł

Search engines have become so indispensable that §they rank second only to e-mail as the most popula...

Informacje o książce

Autor

Marco Palomino

Język

Angielski

Oprawa

Książka - Miękka

Data wydania

2009

strony

160

EAN

9783639148862

Enbook ID

06823440

Wydawca

VDM Verlag Dr. Müller

Waga

255

Wymiary

150 x 220 x 10

Pełny opis

Search engines have become so indispensable that §they rank second only to e-mail as the most popular §online activity. To respond to queries in a timely §fashion, search engines make use of large indices of §word occurrences on Web pages to cross-reference §websites to keywords. Such indices are maintained by §spiders, a special kind of computer program that §browses the Web autonomously. However, due to a §variety of technological limitations, a single §spider has proven insufficient to maintain a search §engine's index. Hence, in this book, we review §several alternatives to split a spider's work into §multiple processes, and define a methodology to §preserve an up-to-date index of the Web. §SharpSpider, our prototype spider, has been §evaluated using the resources of PlanetLab, a §globally distributed platform for developing and §deploying planetary-scale services. Despite the §utilisation of very modest equipment, we have §performed large crawls of the Web, distributing the §workload amongst various computers spread across §different continents. The statistics derived from §our research offer valuable insight into the nature §of educational Web resources.

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SharpSpider: A Continuous, Parallel and Distributed Spider

Design and implementation of software to navigate the Web autonomously

Informacje o książce

Pełny opis

Możesz być zainteresowany

Klienci, którzy kupili tę książkę, kupili również