Methods of searching for information
There are different methods of searching the web.
| Search engine | method |
|---|---|
| Example | |
| Primarily uses page rank to determine relevance | |
| ask.com | Whereas Google’s PageRank ranks its
search results by popularity, Ask has something it calls “ExpertRank”. Essentially this is an automated search algorithm (like Google has), but on top of that results are ordered using topic communities and the editorial functions that create ‘Smart Answers’. While the ExpertRank formula is a secret sauce that Ask.com won’t divulge, they do say that the top results in searches are determined by expertise – and not popularity. As it states on their help pages: “Identifying topics (also known as “clusters”), the experts on those topics, and the popularity of millions of pages amongst those experts — at the exact moment your search query is conducted — requires many additional calculations that other search engines do not perform.”[2] |
| wolfram alpha | Alpha) is a computational knowledge engine[5] or answer engine developed by Wolfram Alpha LLC, a subsidiary of Wolfram Research. It is an online service that answers factual queries directly by computing the answer from externally sourced "curated data", rather than providing a list of documents or web pages that might contain the answer as a search engine might.[3] |
| Example | Example |
| Example | Example |
Do you understand this?[edit]
Can YouTube be classed as a search engine? Google’s Panda puts the focus on quality. Cloud Kite (Open Drive) for searching the cloud. Multimedia search engines (visual / audio).
Standards[edit]
These standards are used from the IB Computer Science Subject Guide[4]
- Evaluate methods of searching for information on the web.
References[edit]
- ↑ http://www.flaticon.com/
- ↑ https://readwrite.com/2006/11/15/ask_what_differentiates_them_from_google/
- ↑ https://en.wikipedia.org/wiki/Wolfram_Alpha
- ↑ IB Diploma Programme Computer science guide (first examinations 2014). Cardiff, Wales, United Kingdom: International Baccalaureate Organization. January 2012.