Title: loginworksinc
111/8/2019
All About Web Scraping
All About Web Scraping By Loginworks Softwares -
September 23, 2019
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The internet can be regarded as a huge expanse of
data that is interlinked together for the purpose
of facilitating interactive access. It gives
users an opportunity to seek information that is
of interest to them by use of web addresses and
following hyperlinks. Since the information found
on the internet continues to grow daily, the
harvesting of such information becomes a tough
task that consumes time and resources. This is so
since it is difficult to regulate the
unstructured and semi-structured web data. It is
important to note that the internet is very
different from print documents. This is because
the information contained on the internet is
constantly evolving. This has made database
management a complex process and therefore calls
for web mining tool known as web scraping.
- Web scraping is about the use of data mining
tools in order to discover and extract data from
the internet. It is important to note that web
scraping can be divided into four sub tasks - Resource Finding. This is usually the first step
in the web scraping process. The purpose of this
process is to retrieve data that is contained
both online and offline sources. The information
can be resources that can be found on the
internet such as newsletters, website content and
HTML documents. - Information Selection. Also known as
pre-processing is an integral step in the web
scraping process. After extracting the relevant
data from the internet it is important the
original data is transformed. The process
involves the removal of stop words, stemming or
anything else in order to obtain the targeted
data like finding phrases in the training
corpus, representing the text in the first order
logic form and so on. - Generalization. This is another important step
that is very crucial in the web scraping process.
It involves the identification of general
patterns and trends on the individual web pages
and other multiple web pages. It usually calls
for a lot of data mining techniques and other
relevant web oriented methodologies. - Analysis. This is usually the last step in the
web scraping process. In this step all the
extracted data and information is laid across,
validated and all the patterns that were
identified are now interpreted. This is a very
crucial step as it would not make sense if we
extract data and fail to interpret it for
purposes of decision making and learning the
marketing performance.
https//www.loginworks.com/blogs/web-scraping/
211/8/2019
All About Web Scraping
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https//www.loginworks.com/blogs/web-scraping/