7.2 0/1 Knapsack using Branch and Bound

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Abdul Bari

Abdul Bari

6 жыл бұрын

0/1 Knapsack using Branch and Bound
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Пікірлер: 305
@sriramkanisetty5083
@sriramkanisetty5083 5 жыл бұрын
He is better than my faculty who is taking 2 lakh salary .
@sasidharthoneti1385
@sasidharthoneti1385 3 жыл бұрын
Which college are u studying bro
@ganeshtowar8050
@ganeshtowar8050 2 жыл бұрын
😂😂😂
@garlapatinikil4778
@garlapatinikil4778 2 жыл бұрын
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@Ani-rw4ln
@Ani-rw4ln Жыл бұрын
This guy is earning in crores
@ganeshtowar8050
@ganeshtowar8050 Жыл бұрын
@@Ani-rw4ln but we pay zero rupees to him and he provides more value to us if compared to the institution than are taking 2 lac per month that's the point it doesn't matter how much he makes
@shivamelody3463
@shivamelody3463 11 ай бұрын
Studied whole subject topics in a single day from different videos of you sir🥹 Hats off to your explanation❤️😍
@rohitkandula8493
@rohitkandula8493 8 ай бұрын
Same broo😍😍✨✨❤❤
@JSTANESJENSONURKCS
@JSTANESJENSONURKCS 3 ай бұрын
thenn please buy his mug and contribute him money 👍👍👍👍
@zeyface6366
@zeyface6366 Ай бұрын
Without him I wouldn’t have a chance of finishing the AI course I almost completely missed
@MPKiller545
@MPKiller545 5 жыл бұрын
Learned from nothing 30 minutes before my exam. I've passed it because of this video. Thanks!
@AmeerHamza-yw7ui
@AmeerHamza-yw7ui 3 жыл бұрын
Hi
@ysandhya8990
@ysandhya8990 3 жыл бұрын
If i give one problem related to this , can you solve?
@segudivija8388
@segudivija8388 3 жыл бұрын
@@ysandhya8990 haha exactly we cant because he is explaining only concept not logic and pseudo code
@mahabirneogy7195
@mahabirneogy7195 2 жыл бұрын
what are you doing currently?
@mohammadfaisal3649
@mohammadfaisal3649 2 жыл бұрын
@@ysandhya8990 give me the problem ill solve it
@mikewal-ente3521
@mikewal-ente3521 8 ай бұрын
Greetings from germany! I was researching how to solve the knapsack problem and after hours of trying to understand the dynamic approach I came across your video explaining the branch and bound. Very clear and informative!
@JSTANESJENSONURKCS
@JSTANESJENSONURKCS 3 ай бұрын
thenn please buy his mug and contribute him money 👍👍👍👍
@letscode5367
@letscode5367 6 жыл бұрын
Highly impressed by your teaching skills sir 💜
@jackiep9755
@jackiep9755 5 ай бұрын
I am so very grateful to have found this channel. Very beautiful and clear explanations for these tricky concepts. Sending thanks from Seattle, WA.
@JSTANESJENSONURKCS
@JSTANESJENSONURKCS 3 ай бұрын
if you are really grateful thenn please buy his mug and contribute him money 👍👍👍👍
@vikrampareek8713
@vikrampareek8713 5 жыл бұрын
very helpful for my exams. Thank you @Abdul Bari Sir
@3shul103
@3shul103 3 жыл бұрын
saved my carrer #DAA ...... in a single flow completed all topics #one day batting with full marks thanks a lot sir
@sanketnaik4743
@sanketnaik4743 Жыл бұрын
today my turn 😢😢
@yashmishra9978
@yashmishra9978 Жыл бұрын
@@sanketnaik4743 today mine
@PrasoonRahangdale
@PrasoonRahangdale 5 ай бұрын
Today mine ​@@yashmishra9978
@nikhilgodbole4425
@nikhilgodbole4425 6 жыл бұрын
You have explained the method very nicely and clearly.
@nicky903
@nicky903 5 күн бұрын
Thank you so much sir... I have been struggling with this knapsack problem for so long... I am grateful to you...
@tanmaypriyadarshi865
@tanmaypriyadarshi865 6 жыл бұрын
Very well explained..... Perfect in every aspect....
@parameshwaran8868
@parameshwaran8868 6 ай бұрын
Theres just a small mistake in the formula he wrote. Its not ΣPiXi . Its just ΣPi for both formulas given the condition that the weight
@sidharthad72
@sidharthad72 4 ай бұрын
It's actually the correct formula. You can also find it in Horowitz. That Xi is either 0 (include object) or 1(don't include object).
@indumatiparida3400
@indumatiparida3400 6 жыл бұрын
Thank you.so easy method to solve knapsack problem.
@Sameer-jv5vx
@Sameer-jv5vx 2 жыл бұрын
thanks a lot sir all the syllabus i have prepared for design and analysis of algorithms for my semester tmmrw i have semester and prepared everything in a great manner only bcoz you sir thanks a lot
@apporvaarya
@apporvaarya 5 жыл бұрын
sir g you are the best..at least better than my nit professor :)
@mohdAbdulRahman20
@mohdAbdulRahman20 5 ай бұрын
What an explanation sir 💯 Easy way to understand lengthy problems I am very thankful to you
@daniyajaweed5900
@daniyajaweed5900 2 жыл бұрын
SUCH A CLEAR EXPLAINATION!!! THANK YOU SO MUCH SIR! 😀
@kavyaramamurthy9102
@kavyaramamurthy9102 5 жыл бұрын
Sir, the way you teach is very nice and understandable.. I'm so glad I found you, and I'm passing in this subject only because of you❤ thank you so so much.
@JSTANESJENSONURKCS
@JSTANESJENSONURKCS 3 ай бұрын
it takes one click to buy his product
@aswathyprakash2566
@aswathyprakash2566 4 жыл бұрын
Awesome lecture sir..Thanks a lot ..
@aditydud
@aditydud 6 жыл бұрын
Sir it was an excellent explanation.
@akashtakawale9074
@akashtakawale9074 3 жыл бұрын
Thank you so much Sir !! This is videos are really helpfull !🙏🙏
@tejasshaha6629
@tejasshaha6629 5 жыл бұрын
Really ur doing great job....!
@Jatinder.thakur
@Jatinder.thakur 5 жыл бұрын
M cleared with the concept. Thank u sir...keep posting such videos
@user-js9xq1ps3s
@user-js9xq1ps3s 4 жыл бұрын
Very high teaching skills. Τα δικά μας τα στραβόξυλα στην Ελλάδα θα ήθελαν 300 διαφάνειες και 20 βιβλιογραφικές αναφορές για να εξειδικεύσουν τη γενικότητα και στο τέλος να μη καταλάβει κανένας χριστό και εκείνοι να νιώθουν σπουδαίοι που κανένας δεν κατάλαβε το τόσο υψηλού επιπέδου μάθημα.
@mark0504
@mark0504 Жыл бұрын
Thanks sir for the explaination. However, I am confused why in 0/1 knapsack problem we are considering fractional weight and profit?
@cmpunk1497
@cmpunk1497 6 жыл бұрын
Thanks sir.. this ditto question appeared in my exam and got me 20 marks. :)
@sujitmohanty1
@sujitmohanty1 9 ай бұрын
Sir looks more like corporate big shot trainer. I am not sure but sir could definitely become one of the finest entreprenure in IT. Just a wish !
@MuraliKrishna-ut7ir
@MuraliKrishna-ut7ir Жыл бұрын
And the first thing u have to check before starting the sum is that all the profits and weights given should be in non-decreasing order of their profits/weights ratio. If there u can do or else u should sort. It is not required while solving 0/1 knapsack in DP. And at the final your sol vector will be for the sorted set of elements kindly notice it and change it to normal given set of weights.
@raziljamadar6294
@raziljamadar6294 7 ай бұрын
LOVE YOU ABDUL BHAI TUM BOHAT BADIYA KAAM KARTE HO. DIL SE LOBEEE YOU
@AwaraGhumakkad
@AwaraGhumakkad 2 жыл бұрын
what are we comparing the upper bound (which was infinity in the beginning) with U or C in the nodes ? somewhere you are saying compare with U , and somewhere with C ?
@DoSomethingProductive
@DoSomethingProductive 6 жыл бұрын
Fantastic video my friend!
@mohammedadel8948
@mohammedadel8948 2 жыл бұрын
Thank you for your hard work
@revanth7070
@revanth7070 5 жыл бұрын
TQ SIR u have done lot of favour for us😍😍😍
@onaisteaches2659
@onaisteaches2659 5 жыл бұрын
Mashallah well explained.I am your FAN, Sir.
@miriamsimonelli741
@miriamsimonelli741 4 жыл бұрын
Abdul, un giorno sarai nei ringraziamenti nella mia tesi di laurea! Abdul, one day you will certainly be on my acknowledgment in my thesis!
@satang500
@satang500 4 жыл бұрын
thanks for the great video, i learned a new way to solve this problem, what's the time and space complexity to solve this using branch and bound?
@Aditya-MsK
@Aditya-MsK 2 жыл бұрын
Sir your ultimately the best 💥
@mvikramaditya8264
@mvikramaditya8264 10 ай бұрын
Very good explanation
@priyanghav1539
@priyanghav1539 8 ай бұрын
sir i need an explain about 0/1 Knapsack using FIFO Branch and Bound solution?
@avinashsamarla3859
@avinashsamarla3859 3 жыл бұрын
Thank you sir superbly explained ❤️
@nazmulhaquenahin
@nazmulhaquenahin 5 жыл бұрын
love from Bangladesh..Sir
@akhilkumar3077
@akhilkumar3077 5 жыл бұрын
What if the cost value comes to be a fraction value? Should we round it off or continue with fraction?
@c.danielpremkumar8495
@c.danielpremkumar8495 6 жыл бұрын
What is the significance of taking the Upper Bound as INFINITY at the beginning ? Can't we instead take this value as ZERO since we are dealing NEGATIVE values ?
@sawoodshariff8287
@sawoodshariff8287 5 жыл бұрын
u cannot take it as 0 initially because we deal upper bound as negative no so INitially infinity wil be source
@VasuGarg
@VasuGarg 4 жыл бұрын
@@sawoodshariff8287 it should be negative of infinity then only -32 can replace it.
@akrambendjedi9859
@akrambendjedi9859 7 ай бұрын
thank u so much Sir . U r the best
@akashchandra6400
@akashchandra6400 2 жыл бұрын
thanks sir i have cleared my backlogs
@sergioaugustoangelini9326
@sergioaugustoangelini9326 4 жыл бұрын
Why is it that, no matter the object of the lecture, a random Indian guy is always gonna be there for me to solve my problems? God I love the internet, and India also
@anildasari1010
@anildasari1010 2 жыл бұрын
Thank u somuch sir for clear information
@biswachat8521
@biswachat8521 4 жыл бұрын
@Abdul Bari In LC-BB, if there are 2 or more nodes with the same cost, which node should be picked up first for exploration?
@pascalfragnoud2846
@pascalfragnoud2846 2 жыл бұрын
It doesn't matter as they have the same cost. You can pick one randomly, or in the most convenient order for your algorithm (the one that comes first in your datastructure)
@nithinreddymukku4756
@nithinreddymukku4756 Жыл бұрын
Nic explanation sir thank you it help for my semester
@maniharsha3379
@maniharsha3379 5 жыл бұрын
Great sir thank you so much
@c.danielpremkumar8495
@c.danielpremkumar8495 6 жыл бұрын
If we have to choose the same object more than once, for optimization - should we multiply the profits and weights of that particular objects appropriately and consider it as a single node ?
@mayurgudi381
@mayurgudi381 6 жыл бұрын
Always the objects are sorted in descending order of profit-weight ratio ?
@payalk.4344
@payalk.4344 5 жыл бұрын
Sir if possible kindly give algorithms for each kind of problem in BnB.Love your vidoes/
@soself_learner412
@soself_learner412 Жыл бұрын
Hi, Sir. May I know if the weight capacity remains 1? Can I simply include and add on a fraction value (v/w) from the Item that has a bigger value? Or, based on this method, just find what items are required to choose s={1010} is enough?
@Varshakumari-uz8uo
@Varshakumari-uz8uo 5 жыл бұрын
Sir, what to do if there is 4 object and after considering 2 object capacity of bag become 1 less than its capacity, Whether to take fraction of only 3rd obj or both 3rd and 4th.
@ritikparida3104
@ritikparida3104 4 жыл бұрын
The one with the highest profit
@priyankaraman369
@priyankaraman369 4 жыл бұрын
Thank you so much sir 🙏
@samridhigupta1657
@samridhigupta1657 3 жыл бұрын
Could you please let me know that why branch and bound is used only for minimization problems?
@vijipalani9213
@vijipalani9213 6 жыл бұрын
grt sir .tanq soo much.
@NikhilSKalme
@NikhilSKalme Жыл бұрын
Thank you sir for wonderful explanation! You have explained the Least Count Branch and Bound (LCBB) Can you please upload the video of FIFO for the same as you mentioned in the video somewhere? Please sir its a kind request ! Thank you!
@abhinashjena216
@abhinashjena216 Жыл бұрын
Sir aap bahut punya ka kaam kar rahe hain.🙇‍♂️
@vasu6005
@vasu6005 6 жыл бұрын
Sir pls make a video on nqueens and travelling salesman problem(backtracking) tooo.. #Urgent.. I like the way you teach.. Absolutely perfect!!
@SaiKumar-zw9eh
@SaiKumar-zw9eh 6 жыл бұрын
Sir at 9:30 when u r including 4th object from node 7, if the weight exceeds 'm' then should we skip the step of adding 4 like the similar way we did at 6th node?
@smartzsathish3168
@smartzsathish3168 5 жыл бұрын
Wow, by this single video i learned the problem clearly...
@Nikhil-qd9up
@Nikhil-qd9up 3 жыл бұрын
Whats the need of taking cost in fraction though we r considering 0/1 knapsack?
@thepriestofvaranasi
@thepriestofvaranasi 3 жыл бұрын
To calculate the upper bound. If you take the fractional cost, that would be the maximum you can accomodate. So it is the upper bound.
@thepriestofvaranasi
@thepriestofvaranasi 3 жыл бұрын
All those nodes whose cost will be greater than the upper bound would be obviously the part of incorrect soln so we can kill them.
@krishnam27
@krishnam27 5 жыл бұрын
you are great sir!
@prasanna2171
@prasanna2171 2 ай бұрын
Sir should we need sort them before starting the state space diagram
@rohith_reddy
@rohith_reddy 6 жыл бұрын
Sir, in knapsack problem we generally sort the values according to the profits and then start adding them to the sack what if we shouldn't consider the last one or something like that.
@haritiger7330
@haritiger7330 4 жыл бұрын
Sir please make one more video on least cost branch and bound taking one more sum as an example
@SaiKumar-zw9eh
@SaiKumar-zw9eh 6 жыл бұрын
sir, when you are initially taking the objects weight at 3:18 is there any precedence like taking the objects whose weight is less or it's taken in the order given in the question.
@tusharverma2212
@tusharverma2212 5 жыл бұрын
Thanks for asking this question
@darshit8708
@darshit8708 4 жыл бұрын
Thanks so much!
@karemkarthik7109
@karemkarthik7109 2 жыл бұрын
Explained better than my faculty
@karemkarthik7109
@karemkarthik7109 2 жыл бұрын
understandings very well
@manishchoudhary6104
@manishchoudhary6104 4 жыл бұрын
Best Teacher
@manideep_talampally
@manideep_talampally 5 жыл бұрын
Sir ! U said that u'll change the -ve values to +ve at last ....where did u done that ?
@chundurusriharsha2402
@chundurusriharsha2402 6 жыл бұрын
Sir,whether the weights should be in ascending order or it can be in any order,to solve the problem
@haritiger7330
@haritiger7330 4 жыл бұрын
On 01 knapsack problem using lc branch and bound please make one more video taking one more sum as an example
@pinakranjandas5770
@pinakranjandas5770 2 жыл бұрын
sir is it necessary for 0/1 knapsack using branch and bound to be the weights in sorted order
@2000danispy
@2000danispy 3 жыл бұрын
what is the complixity of the algorithm? I mean how much time would it take to find the optimal answer
@MJgamer4U
@MJgamer4U 3 жыл бұрын
Can this be written for knapsack-backtracking?
@priyalpareek12
@priyalpareek12 6 жыл бұрын
Sir, how to solve this problem by FIFO branch and bound?
@Indumathishalewar
@Indumathishalewar 3 жыл бұрын
Sir while killing the nodes You compared upper bounds with cost ?
@shashanktripathi9797
@shashanktripathi9797 6 жыл бұрын
thank u sir
@mehulshah4797
@mehulshah4797 5 жыл бұрын
Well explained and easy to understand. Thank you so much.
@aakashverma5267
@aakashverma5267 6 жыл бұрын
Smooth :)
@jmoth827
@jmoth827 5 жыл бұрын
how can we maximize the value while we have 2 constraints like weight and volume by using branch and bound? :(
@sharmilasiram5438
@sharmilasiram5438 2 жыл бұрын
How are you deriving cost and upper bound functions?
@dsh35a
@dsh35a 3 жыл бұрын
can we take upper bound as positive integer ?
@bavithakotlo3347
@bavithakotlo3347 6 жыл бұрын
sir i'm getting confused with the LIFO method of this problem,can u explain me with that
@jahnavimulakalapati5076
@jahnavimulakalapati5076 5 жыл бұрын
sir for node 3 u=-27 is given in the text book for FIFO of the same problem.so how can i calculate it
@jahnavimulakalapati5076
@jahnavimulakalapati5076 5 жыл бұрын
@@abdul_bari thanku sir.
@MCMasters4ever
@MCMasters4ever Жыл бұрын
Excellent!
@gv6980
@gv6980 5 жыл бұрын
Why we are taking upper bound as the smaller value?
@asrithasadu1850
@asrithasadu1850 4 жыл бұрын
Thank you 🙏
@arkamukherjee6385
@arkamukherjee6385 5 жыл бұрын
sir why after the 3rd node we are taking from x3=0 why not from x3=1
@ashwinivirdikar8176
@ashwinivirdikar8176 2 жыл бұрын
You are love!!!
@alyssagono7795
@alyssagono7795 5 жыл бұрын
Why does we can only solve minimization problem in branch and bound?
@rodrigopg463
@rodrigopg463 5 жыл бұрын
Thank you theacher. Now I undestand and I believe that I`m able to go ahead with my code. I was wrong about my linear relaxation implementation code
@kailashuv3028
@kailashuv3028 4 жыл бұрын
Why we put the fraction 18/9?
@alexcosmic8110
@alexcosmic8110 4 жыл бұрын
@@kailashuv3028 It's price_of_item/weight-of_item. We are trying to evaluete losses.
@kailashuv3028
@kailashuv3028 4 жыл бұрын
@@alexcosmic8110 ok thank you👍👍👍
@mouryapunk4108
@mouryapunk4108 5 жыл бұрын
Excellent sir
@sohamkudalkar2252
@sohamkudalkar2252 6 жыл бұрын
Sir can u please explain the same knapsack problem using fifo branch and bound.
@narasimhamg684
@narasimhamg684 4 жыл бұрын
Life saver.
@evanwieland8466
@evanwieland8466 2 жыл бұрын
Excellent
@aakritirajpal7403
@aakritirajpal7403 5 жыл бұрын
thank you sir
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