Srinivas Sir, just to mention, at 29:33 the value put by you is '0', while it would be '1', if I got learnt from you correctly. I am pursuing MBA (PT) from FMS, Delhi. You are our real guru Sir. Thanks a lot for providing us such a huge valuable 'gyaan' without taking a single paisa as 'guru-dakshina'. We all are most obliged to you for such beautiful chain of lectures on various OR topics. May God always bless you and your family. Wishing you a very Happy and God-Blessed Deepawali in advance.

This is great. Thank you very much. Superb explanation.

…Except, I find myself asking what's the point. It's extremely formulaic and repetitive, such that a computer is best to solve this nowadays. No real insight is gained by following these steps over and over.

hello there,
While going through this lecture i found that there is a little mistake done by sir while solving 2nd assignment problem.
As stated by Sir when the non-ticked row line and ticked column lines cross point i.e.(if i is row and j is column so Cij is cross point) is increased by theta(here 1) but in this problem sir didn't take C25 and C35 into consideration and didnt increase it by 1 ( see video time period 26.36 – 27.38).
Please correct me if i'm wrong
Regards,
Chetan Rahate

good explanation…but on minute 29:34 on that iteration, column 5 row 3..it should have been 1 (=0 + 1) because it had 2 lines crossed, fortunately it didn't effect the result

Question what happens in a case where you have a 4 by 4 and you end up with just 3 assignments so now while looking for the 4th one you just have one unassigned row and you can find a zero column 1 and 4, do you tick both column 1 and 4 or you just select one to tick ?

sir thanks soooo much for this great lecture. you are the one of best lecturer in the world. book wrote 100 page on assignment problem and you cover in one hour. now i am able to solve all questions. thanks sir

Sir, dat was really helpful, thnx.. nd u spoke about more sophisticated ways to solve assignment problem rather than arbitrarily assigning it to one of the many zeros. cud u help me in finding them.. kindly reply ASAP

Really a great approach toward the spread education world wide and make familiar to every students about the deep information who never get such classes by own.

sir at Â 29:34 3rd row last element 0 has two lines passing through it, that element should get add theta( theta = 1, 0 +1 =1) but you wrote it as 0, you have done a mistake there sir … ðŸ™‚

dear sir i wanna thankyou soo much!! i jus received my OR paper n to my surprise i passed!!! i swear i did nothin else bt watch ur vids!1 thankyouuu sooo much!!!!!! Â loads of respect ðŸ™‚

sir,we add smallest number in new matrix where two lines are intersected.pls give me reason why we "add" smallest no.i.e.Ï´ mentioned in above ex.?why we didnt subtractÂ Ï´ from the number where two lines are intersected..pls wanna reason behind that plss sir

There is another small mistake at 27:07. In second row fifth column it should be 6 instead of 5…as lines are intersecting theta should be added… but anyways the solution doesn't change ðŸ™‚

Sir at 27.07 and 27.16 at 5th column, the element 5 (at 2nd row 5th column) and element 0 (at 3rd row 5th column), have been double crossed and according to the algorithm the values should be changed to 6 and 1 resp. But it can be seen that, you didnot change these values,isn't so?

ahhh… i wish our institute could have teacher like you ðŸ™‚ . you are so good sir … frankly telling teacher like you are not easy to get only lucky student could have…..

At 36:35 you indicate, "there are more sophisticated methods available". This is in reference to the dead-end solution where there are four vertical lines yet row four remained unassigned due to the incorrect arbitrary selection of the zero at (1,1).

Where can I find more information about selecting the "correct" element when faced with an arbitrary selection?

Great Video. As an exercise, I made a computer program for the assigment problem in Python along with the GUI. If anyone's interested, they can view the source at github.com/isopropylcyanide/Hungarian_Assignment_GUI/

Though it is true that subtracting a same value from each row will not affect the optimal solution, it is not very intuitive that the original optimal solution maintains optimal after the subtraction because minimum element of each row might be different. So it would be more convincing if we could have a formal proof.

it will still end on the sixth stage

do check!

Srinivas Sir, just to mention, at 29:33 the value put by you is '0', while it would be '1', if I got learnt from you correctly. I am pursuing MBA (PT) from FMS, Delhi. You are our real guru Sir. Thanks a lot for providing us such a huge valuable 'gyaan' without taking a single paisa as 'guru-dakshina'. We all are most obliged to you for such beautiful chain of lectures on various OR topics. May God always bless you and your family. Wishing you a very Happy and God-Blessed Deepawali in advance.

Thanks so much, it was reaaaaaaaly helpful thanks again ðŸ™‚

very very helpful, was having a little problem with it but when he broke it down it became soo simple

This is great. Thank you very much. Superb explanation.

…Except, I find myself asking what's the point. It's extremely formulaic and repetitive, such that a computer is best to solve this nowadays. No real insight is gained by following these steps over and over.

OMG

really helpful for my exam. Thanks Guru..

Thank you a lot, you sure helped a lot of IST students this week ðŸ™‚

hello there,

While going through this lecture i found that there is a little mistake done by sir while solving 2nd assignment problem.

As stated by Sir when the non-ticked row line and ticked column lines cross point i.e.(if i is row and j is column so Cij is cross point) is increased by theta(here 1) but in this problem sir didn't take C25 and C35 into consideration and didnt increase it by 1 ( see video time period 26.36 – 27.38).

Please correct me if i'm wrong

Regards,

Chetan Rahate

thank u sir……. total respect for ur work and knowledge

Really clear and good lectures. Keep up the good work.

awesome awesome////////////////

good explanation :))

a very good presentation..thank you soo muchh

it would be great if the vid didnt have 1.5 min of intro

Thanks for the tutorial, helped me a lot to study for my finals ðŸ™‚

PS. You look like the south Indian version of Salman Khan

good explanation…but on minute 29:34 on that iteration, column 5 row 3..it should have been 1 (=0 + 1) because it had 2 lines crossed, fortunately it didn't effect the result

Great tutorial, Helped me to prepare for my Operation Research Exam,

Thanks Sir……

I am profoundly thankful for these videos, in my country we don't have good universities and just a few committed professors such as yourself

i think on minute 29 there is a fault, column 5, line 2 and 3…they are underlined 2 times

great lecture :). Thank you!

You really don't know how I loved your videos. Your video on Queue really bagged me grade A. Thanks so much

Thank you for this video, it is very useful and the faculty is also excellent.

Thank you Sir …Really great teaching !

Small mistake at ~29 mins..5th row 3rd column 0 is 2 crossing…should be +1…Great Teaching BTW….

Thank you sir.. Your online lectures helped me in getting first class marks in Operations Management..Thanks again

Question what happens in a case where you have a 4 by 4 and you end up with just 3 assignments so now while looking for the 4th one you just have one unassigned row and you can find a zero column 1 and 4, do you tick both column 1 and 4 or you just select one to tick ?

If you had listened to the video, you would have heard the explanation, to quote my OR lecturer "You haven't done your research…" lol ðŸ™‚

Nevermind he had the answer there during the 25::48 time

Whatever Jean-Paul ðŸ˜›

What happens in a case where the your n is not equal what do you do to get an n x n ?????

Nice work.. thanks sir. God bless you…

My Networks are Flowing!Â

@sonyb19 If n is not equal, we add a dummy row or column in which all the elements are 0, to make it a n x n matrix

in the loop problem i think u have showed the wrong slide for the feasible solution .please check it or it is very confusing

sir thanks soooo much for this great lecture. you are the one of best lecturer in the world. book wrote 100 page on assignment problem and you cover in one hour. now i am able to solve all questions.

thanks sir

This is very very much clear. Thank you Sir. ðŸ™‚

awesome!! ðŸ˜€ thanks a lot..

very very helpful thanks

there is a mistake in second last box for problem no 2.Â

…and thats why some teachers deserve "dandvat pranam".Â indebted to you.

Thank you Sir.

Sir, dat was really helpful, thnx.. nd u spoke about more sophisticated ways to solve assignment problem rather than arbitrarily assigning it to one of the many zeros. cud u help me in finding them.. kindly reply ASAP

very helpful Sir…. Thank You ðŸ™‚

Really a great approach toward the spread education world wide and make familiar to every students about the deep information who never get such classes by own.

Heartily Thanks to IIT professors.

thanks a lot . .

sir at Â 29:34 3rd row last element 0 has two lines passing through it, that element should get add theta( theta = 1, 0 +1 =1) but you wrote it as 0, you have done a mistake there sir … ðŸ™‚

i don't get ticking plz help me plz plz plz

would the solution be same if the problem is of maximisation rather than minimisation type ???

this was extremely helpful. thank you sir.

dear sir i wanna thankyou soo much!! i jus received my OR paper n to my surprise i passed!!! i swear i did nothin else bt watch ur vids!1 thankyouuu sooo much!!!!!! Â loads of respect ðŸ™‚

sir,we add smallest number in new matrix where two lines are intersected.pls give me reason why we "add" smallest no.i.e.Ï´ mentioned in above ex.?why we didnt subtractÂ Ï´ from the number where two lines are intersected..pls wanna reason behind that plss sir

oh my word,good examples ever…thank you Sir

Thank you SO much sir! You are a life saver ðŸ˜€

Â

sir thanks soooo much for this great lecture. you are the one of best lecturer in the world.

Thanks sir…just like solving Rubik's cube keep doing algorithm for matching colours hahah….love this…

Very good. Thank you.

thanks sir

Â sir thank you so much . you are the best.

THANK YOU SO MUCH SIR

this was really helpful

There is another small mistake at 27:07. In second row fifth column it should be 6 instead of 5…as lines are intersecting theta should be added… but anyways the solution doesn't change ðŸ™‚

There is small mistake at 29:33. In third row and fifth column. it is 1 instead of 0.

Sir…you are amazing..thanks a bunch…after going through this session…i managed to crack some really tough problems…god bless you

Sir at 27.07 and 27.16 at 5th column, the element 5 (at 2nd row 5th column) and element 0 (at 3rd row 5th column), have been double crossed and according to the algorithm the values should be changed to 6 and 1 resp. But it can be seen that, you didnot change these values,isn't so?

thankyou sir so much!

Really helpful video.

does the cost matrix needs to be a square matrix if 9 person can be assigned to 16 jobs then what

Thank you sir….your explanation and videos are awsm:-)

cheers bruh

Thanks sir…..#respect you are such a good teacher…..so calmly u teach.ðŸ˜Š

Sir You are excellent……

I hope to be a student of IIT Madras, Chennai, India.

At t = 29:33

element (3,5) = 1 not 0.

suuuuuuuuuuuuper sir

ahhh… i wish our institute could have teacher like you ðŸ™‚ . you are so good sir … frankly telling teacher like you are not easy to get only lucky student could have…..

wooow thanks

what method can we use in assignment problems which have no equal row and column?

useful and very clear. Thanks.

very helpful

_thankss sir ðŸ™‚very nice explanations.

nice explanations

At 36:35 you indicate, "there are more sophisticated methods available". This is in reference to the dead-end solution where there are four vertical lines yet row four remained unassigned due to the incorrect arbitrary selection of the zero at (1,1).

Where can I find more information about selecting the "correct" element when faced with an arbitrary selection?

Thanks

Thank you Sir.

https://www.fiverr.com/s2/add8841d18

great explanation sir…….

GOOD

Extremely helpful. Would have failed in my test if it wasn't for this video!

thanks sir

thanks sir

Great Video. As an exercise, I made a computer program for the assigment problem in Python along with the GUI.

If anyone's interested, they can view the source at github.com/isopropylcyanide/Hungarian_Assignment_GUI/

thank u sir for such great explanation….

Blunder at 29:34

it has help me alot sir….thank u so much …

how to solve below assignment

666

666

666

thank you boda.

4, 0, 0, 6, 10

12,8, 0, 0, 6

2, 0, 2, 6, 12

4, 2, 0, 0, 4

0, 2, 0, 0, 0

Seems the ticking alogorithm fails for this matrix.

Thank you very much Sir

Thanks sir …..

Though it is true that subtracting a same value from each row will not affect the optimal solution, it is not very intuitive that the original optimal solution maintains optimal after the subtraction because minimum element of each row might be different. So it would be more convincing if we could have a formal proof.

Sir drawing method ta (_)glt kita tuci

23:10

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