This is a new miner, available now at http://www.minerazzi.com/
Chemistry tutorials, tools, demos, lecture notes, and more for students, teachers, and researchers. Build chemistry-specific collections. Search by topic or site.
The US Army Miner is now available at http://www.minerazzi.com.
Mine Army divisions, units, battalions, breaking news, military social media, and more. Build US Army specific collections. Search by military resource or location.
PS. Amazing news obtained through the News Center of this miner
Imagine controlling things or communicating to each others through our brain waves! Coming soon?
Mine all top community colleges from the United States and its territories with this miner, available now at http://www.minerazzi.com/cc.
Build community college specific collections. Search by college, discipline, or location. Find community colleges from all the 50 States, Puerto Rico, and other US territories.
We have reindexed and expanded the grants and scholarships miner available at http://www.minerazzi.com/grants
As usual, users can scrape search results to find zillion of urls, links, images, scripts, etc, to build curated collections or gather intelligence, without spending any budget in web scrapping services.
More educational miners will be available soon.
A new Minerazzi miner: World Search Engines and Directories (http://www.minerazzi.com/worldsearches).
Find all top generic and specialty search engines and directories from around the World. Search them all by region, country, name, industry, or topic.
Once you find a result, either mine its URL or visit it to keep searching.
Try the following queries with this miner:
[ africa search engine], [ Australia ], [ Yahoo ], [ travel], [ news ], etc
On Cosine Similarity
Cosine similarity is commonly used in data mining and information retrieval as a measure of the resemblance between data sets; i.e. how similar or alike these are. It is an important concept used in Vector Space Theory and affine models.
While there are many tools and tutorials on the subject out there, quite often what is missed from these is a clear explanation of the underlying meaning and nature of the variables involved.
Did you know that centering data sets by subtracting the corresponding variable means can and will impact the angle between them, and therefore, the corresponding cosine similarity? Did you know that said change can be used to assess whether the variables are orthogonal, uncorrelated, or both/neither? Do you know what a cosine similarity of zero actually mean?
All these and similar questions are addressed with our cosine similarity tool and companion tutorial. Access them now at
To use the tool simply enter two data sets and select how these are delimited. Then check whether you want to compute their cosine similarity by using them as given (raw mode) or by subtracting their mean (centered mode). To interpret the results from either mode, read the companion tutorial.
The CRAN Miner is available now at http://www.minerazzi.com/cranminer.
Search for R web packages from the Comprehensive R Archive Network. Recrawl or search inside a result to find R resources relevant to a given R package.
R is a free software environment for statistical computing and graphics. It is one of the preferred programming languages of big data researchers.
Just some few news from Minerazzi:
1. All miners now give users the option of including/excluding results matching parts of a word (substring matching). Try one now at http://www.minerazzi.com. Useful for matching plurals, word roots, or word derivatives.
2. Slowly, but steadily, new tools and tutorials have been added to the platform.
3. We are currently building a new miner for accessing the Comprehensive R Archive Network (CRAN).
JStatMiner is a new miner built with Minerazzi and available at http://www.minerazzi.com/jstatminer/
Use it to mine all top statistical journals from around the World!
Whether you are a researchers, librarian, teacher, or student, now you can have an easy access to a huge collection of popular and hard-to-find statistical journals.
This is a new miner built with Minerazzi. Use it to find all kind of statistical tools and software packages for research, teaching, or business. Search by company or product name.
Find Stata, SAS, SPSS, or similar software solutions. Access Mac, Microsoft, IBM statistical packages, or links pointing to rare research tools.