It is evident that the invention of the internet is one of the greatest inventions of life. This is so because it allows quick recovery of information from large databases. Though the internet has its own negative aspects, its advantages outweigh the demerits f using it. It is therefore the objective of every researcher to understand the concept of web scraping and learn the basics of collecting accurate data from the internet. The following are some of the skills researchers need to know and keep them abreast of:
Understanding File Extensions in Web Scraping
In web scraping the first step to know is file extensions. For instance a site ending with dot-com is either a sales or commercial site. With the involvement of sales activity in such a website, there is a possibility that the data contained therein is inaccurate. Sites that may be ending with dot-gov are sites owned by various governments. The information found on such websites is accurate since they are reviewed by professionals regularly. Sites ending with dot-org are sites owned by non-governmental organizations that are not after making profit. There is a greater probability that the information contained is not accurate. Sites ending with dot-edu are owned by educational institutions. The information found on such sites is sourced by professionals and is of high quality. In case you have no understanding concerning a particular website it is important that get more information from expert data mining services.
Search Engine Limitations in Web Scraping
After understanding the file extensions, the next step is to understand search engine limitations applied to web scraping. These include process such as file extension, filtering or any other parameters. The following are some of the restrictions that need to typed after your search term: for instance if you key in “finance†and then click “search†all sites will be listed from the dot-com directory that contain the word finance on its website. If you key in “finance site.gov,†of course with the quotation marks, only the government sites that have the word finance will be listed. The same applies to other sites with different file extensions.
Advanced Parameters in Web Scraping
When performing web scraping it is important to understand more skills beyond the file extension. Therefore there is a need to understand particular search terms. For instance if you key in “software company in India†without the quotation marks, the search engines will display thousands of websites having “softwareâ€, “company†and India in their search terms. If you key in “Software Company in India†with the quotation marks, the search engines will only display sites that contain the exact phrase “software company in India†within their text.
This article forms the basis of web scraping. Collection of data needs to be carried out by experts and high quality tools. This is to ensure that the quality and accuracy of the data scraped is of high standards. The information extracted from that data has wide applications in business operations including decision making and predictive analytics.
Source: http://goarticles.com/article/Understanding-Web-Scraping/6771732/
Understanding File Extensions in Web Scraping
In web scraping the first step to know is file extensions. For instance a site ending with dot-com is either a sales or commercial site. With the involvement of sales activity in such a website, there is a possibility that the data contained therein is inaccurate. Sites that may be ending with dot-gov are sites owned by various governments. The information found on such websites is accurate since they are reviewed by professionals regularly. Sites ending with dot-org are sites owned by non-governmental organizations that are not after making profit. There is a greater probability that the information contained is not accurate. Sites ending with dot-edu are owned by educational institutions. The information found on such sites is sourced by professionals and is of high quality. In case you have no understanding concerning a particular website it is important that get more information from expert data mining services.
Search Engine Limitations in Web Scraping
After understanding the file extensions, the next step is to understand search engine limitations applied to web scraping. These include process such as file extension, filtering or any other parameters. The following are some of the restrictions that need to typed after your search term: for instance if you key in “finance†and then click “search†all sites will be listed from the dot-com directory that contain the word finance on its website. If you key in “finance site.gov,†of course with the quotation marks, only the government sites that have the word finance will be listed. The same applies to other sites with different file extensions.
Advanced Parameters in Web Scraping
When performing web scraping it is important to understand more skills beyond the file extension. Therefore there is a need to understand particular search terms. For instance if you key in “software company in India†without the quotation marks, the search engines will display thousands of websites having “softwareâ€, “company†and India in their search terms. If you key in “Software Company in India†with the quotation marks, the search engines will only display sites that contain the exact phrase “software company in India†within their text.
This article forms the basis of web scraping. Collection of data needs to be carried out by experts and high quality tools. This is to ensure that the quality and accuracy of the data scraped is of high standards. The information extracted from that data has wide applications in business operations including decision making and predictive analytics.
Source: http://goarticles.com/article/Understanding-Web-Scraping/6771732/
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