Learn MapReduce with Playing Cards

[kartnher]

This is by far the best explanation of the MapReduce technique that I have come across. I especially like how the technique was explained with the least amount of technical jargon. This is truly an ELI5 definition for MapReduce. Good work!

[ekdumdesi]

Great explanation !! You Mapped the Complexity and Reduced it to Simplicity = MapReduce :)

[smushti]

An innovative idea to use a pack of cards to explain the concept. Getting fundamentals right with an example is great ! Thank you

[scottzeta]

The only one I watched which can clearly introduce mapreduce to newbie

[mmuuuuhh]

To wrap this up:
Map = Split data
Reduce = Perform calculations on small chunks of data in parallel
Then combine the subresults from each reduced-chunk.

Is that correct?

[rodrigofuentealbafuentes]

Really good illustration.... really easy to understand for people as me that we are not computer experts.. thanks

[djyotta]

Very well done - not too slow, yet very clear and well structured.

[Useruytrw]

Jesse may you get all SUCCESS and BLESSINGS

[sukanyaswamy]

Great presentation. The visualization makes it so much easier to understand. 

[vamsikrishnachiguluri]

what a great effort, i am astonished by your teaching skills.we need teachers like you.Thanks for your best explanation
.

[victorburnett]

If I understand correctly, the mapper divvies up the data among nodes of the cluster and subsequently organizes the data on each node into key-value pairs, and the reducer collates the key-value pairs and distributes the pairs among the nodes.

[menderbrains]

Great explanation! This is how a tutor should simplify the understanding! Thanks

[amitprakashpandeysonu]

loved the idea. Now I understood how map reduce works. Thank you.

[vscid]

and that's how you explain any technical concept. simple is beautiful!

[kabirkanha]

Never trust a man whose deck of playing cards has two 7s of Diamonds.

[rahulx]

an ounce of example is better than a ton of precept! --Thanks, this was great!

[davidy]

amazing explanation! I love it. Huge Thanks!

[vivek]

Really liked your way of and "Informative". Thanks for sharing!!

[doud]

really cool one. It is always nice to come back to the basics. Thanks for that one

[mgpradeepa]

The explanation is wonderful.. You made me understand things easily.