TFIDF : Data Science Concepts

[@pohkeamtan9876]

This is really good. Concise , straight to the point, and there is no need to show a line of code !

[@rt58528]

Being a math lover, within a minute of your explanation I became your fan, was always in a search of videos like this

[@mango-strawberry]

true. his channel hasn't been picked up by KZbin yet.

[@stanlukash33]

I started googling tf-idf and then I was like "Hey, maybe that guy has a video on it", and you do! Thanks!

[@ritvikmath]

😂 "that guy" says you're welcome

[@stanlukash33]

@@ritvikmath haha sorry, Ritvik!

[@robertc6343]

Excellent teaching! Perfectly designed, clearly explained and not even one sentence that would be redundant. I’m your fan my friend 👍🏼🙏🏼

[@ritvikmath]

Wow, thank you!

[@leod1740]

@@ritvikmath Yes excellent explanation

[@hemantsah8567]

Your videos before sleep... Keep nightmares away...

[@ritvikmath]

aww, thanks !

[@imdadood5705]

I wish to have your coherence when explaining. Awesome explanation as always.

[@emna143]

Hi, first of all, thanks for the great explanation. I have watched your videos about Word2Vec and TF-IDF, and I need help, please. I'm a student working on a project about binary classification of SQL injection attacks. The dataset I have contains two columns: 'sentence' and 'label.' I need to extract features, but I'm confused about which technique to use: Word2Vec or TF-IDF. Can you help me decide?

[@_instanze_]

Youre an excellent explanar man. And I don't mean that lightly (I rarely compliment people wallah). You got a knack. Truly! Subscribed!!

[@ritvikmath]

I appreciate that!

[@hannahb.9454]

This came in clutch, thanks

[@michaelhaag3367]

Lucid explanation, my man back at it again!

[@bananalord8575]

Sweet and simple!

[@ralphhennen5769]

How do you model multiple objects associated to a term class: Dental Care: United Health Care, Blue Shield, ..., by state? This becomes contextual and local within the text - how close is the word dental care in the text to UHC, for instance. The result would show which states address dental care in their health insurance regulations and which insurance companies make it available - both in a positive and negative way. Understand that this is a narrow example. Thanks

[@balaganesh3440]

Outstanding explanation!

[@hameddadgour]

Great presentation!

[@ericzhang5987]

Excellent explanation !

[@devidurga392]

clear cut explanation. Thank you

[@mupetman1214]

Would you advise to take out stopping words and run tdidf on the new set of documents?

[@robertodigiacomo3910]

Great explanation

[@MrKqsami]

Great Job sir!

[@gunbac74]

I read this explanation in a book, but not as clear as this video. Well done!

[@ritvikmath]

thanks!

[@fustigate8933]

Nice explanation!

[@mariapazherrera4306]

Amazing!!!!!

[@athena9357]

You saved me! My professor explained this in 3 hours, I watched it 2 times and I don't get it. This guy explained the same concept in 7 minutes and I get it!

[@srijitbhattacharya6770]

Excellent , simply briliant

[@mango-strawberry]

damn.. that was a solid explanation

[@MYanton1994]

thank you very much

[@almonddonut1818]

Thank you so much!!! 🤩

[@sia-watsonlee]

amazing

[@mitadrubanerjeechowdhury9092]

Amazing stuff, thanks man for letting me pass the exam.

[@0xjrr]

love that in this alternative timeline the last speech is from Obama

[@skeletonrowdie1768]

a certain president would really bias the vocabulary data

[@vasundharasingh8216]

in cases where all the 3 documents contain the word, even if 2 of them contain the word only once and the 3rd doc contains it a 100 times, tf idf would be 0 as idf would be 0. isn't this misleading then?

[@RedditFam]

Very useful! Thank you Sir!

[@ai-force3792]

very Good

[@ritvikmath]

Thanks

[@sepideh1111]

Thanks , great teacher if I could I would have given you 3 thumb

[@durasaksham]

It was that easy

[@aleynapolat1545]

Bro, you are a good narrator but a bad organizer. It would be better that the next time you write on the board more regularly in order to make it easier to follow what you sayin

[@australianperson2582]

Thanks for politicising education with that exclusion with that example, unsubbed - so partisan.

[@ritvikmath]

Sorry to see you go, it was not my intention to politicize but rather just to use this as an example.

[@Scar_]

Thank you for this! You saved me much time! Your explanation is legit!

[@ritvikmath]

Thanks!!

[@VishalKhopkar1296]

if the word 'healthcare' did occur in all 3 speeches, but occurs in the Obama speech 26 times, but only once in Clinton's and Bush's speeches. Using this mechanism, the IDF of healthcare would still be 0, but since the word has been used a considerably large number of times in the Obama speech, it is definitely important

[@redpz]

in a more realistic situation the # of D would be much larger so cases like this would be extremely rare

[@TheTranscending]

Good point

[@martand_05]

What a classy explanation. So good man!

[@ritvikmath]

Much appreciated!

[@MultiRockxD]

Is this a good tool to create a top of "important" words in a dataset? or it just helps to see the relevance in a particular document, I want to use it so I can maybe sum all the tdidf of all the documents and create a top words but I don't know if this is the best approach/solution to what I want, thank you in advance

[@Shaan11s]

YES! I get it now, much love bro

[@vinson2233]

I'm really glad to choose this video instead wasting my time watching 30minutes explanation of tf-idf. Great job for explaining this

[@ernestanonde3218]

Powerful...Thank yoiu

[@swagatggautam6630]

I wonder why my teachers couldn't explain so simply.

[@k_anu7]

If anyone dislikes this explanation god will have to come down to explain him/her.

[@vaibhavmourya65]

Great explanation buddy🙌🏻

[@butterfly34457]

So simple and concise! Thank you so much!

[@pushkarparanjpe]

This is a great explanation. Thanks. I have a question about differences between the implementation described in this video and another implementation commonly found on the web. Can you explain how these two details would impact the final representation: 1) Term frequency simply calculated as term count 2) Applying vector normalisation (L2) to the document vector obtained in this video Another question which is more open-ended: why is TfIdf still relevant ? Or less provocatively - is there a sweet spot where one would prefer TfIdf over the modern dense vector representations (such as word2vec, doc2vec, etc.) ?

[@nehimomo]

veyr great explanation, much better than my lecturer

[@pallavijog912]

Nice explanation. Thanks!

[@Justrelaxx101]

Perfectly explained

[@adrianramirez9729]

Amazing explanation!

[@amadios9874]

That was crystal clear, thanks

[@chaitu2037]

Very well explained

[@user-or7ji5hv8y]

Clear and concise.

[@warislthong3149]

Excellent !

[@Begooder]

many thanks

[@BhuvaneshSrivastava]

I like your videos first and then start watching your Data Science videos because I am sure that after I am done watching it, I will like it anyway. Keep it up.. 🙏

[@ritvikmath]

Wow, thank you!

[@22malman]

Superb!!

[@summerxia7474]

Such a clear explanation!!! Much better than my teacher in the class. Why can't they just make it this simple? Thank you so much.

[@ritvikmath]

no problem!

[@maefiosii]

that explanation was so smooth and clear.. great job

[@ritvikmath]

Thank you :)

[@elsywehbe2897]

Your examples are excellent! Thank you!

[@ritvikmath]

You're very welcome!

[@AKapich]

Very succinct explanation, thank you very much

[@ritvikmath]

You are welcome!

[@eramy1]

Good explanation in a simple way... keep doing well man

[@ritvikmath]

Thanks a ton!

[@sebastiancamilopuertogalin4478]

For any given word/term, we want to know how important is that term for a given document, relative to the entire corpus of documents. E.g. for Clinton these subset of words is really important in his inauguration speech, relative to the other inaguration speeches. TF-IDF is simply a multiplication of the metrics TF (term frequency) and IDF (inverse document frequency).

[@superbatman1462]

Nice Explanation

[@ritvikmath]

Thanks!

[@negusuworku1871]

iT IS REALLY NICE. KEEP IT UP

[@ritvikmath]

Thanks a lot 😊

[@cleansquirrel2084]

Awesome video!!

[@ritvikmath]

Thanks!

[@mila4real1]

Cool! Loved your simple but extremely efficient explanation

[@aradsoutehkeshan4740]

Useful :)

[@ritvikmath]

Glad you think so!

[@luuz_study_yt7123]

Thank you for the video, we are working at a Movie recommender System and this helps a lot for NLP.

[@alexfeng75]

great video with depth and simplicity at the same time!

[@cesarreinoso2203]

Awesomeeee Simple and Clear

[@dalvirsingh4070]

Explanation was awesome!

[@David-nw6rz]

When using the whiteboard, your videos are even better than with pen and paper! Thanks for your videos!

[@xxxxxx-wq2rd]

but if healthcare appears 100 times in one document, and only once in each of the other 2 documents, then the result will be zero!

[@nicholasdavis9529]

This was my question. If you found out let me know.

[@nicholasdavis9529]

Great video btw, best explanation.

[@zephyrsurfteam]

Great video! Thanks! I would love to see more content on TFIDF.

[@ritvikmath]

Noted!

[@abdulbasit0123]

That was a great explanation, Thanks 🤍

[@jb_kc__]

your explanations are great bro cut to the heart of the issue + ensure conceptual understanding 🫡🫡

[@ritvikmath]

Thank you so much 😀