Created by Kamyar Ghiam and Anish Krishnan: Kamyar Ghiam: kamyarghiam@gmail.com Anish Krishnan: anish-krishnan.github.io/
Пікірлер: 59
@abu-bakrmohamed1707 Жыл бұрын
This deserves much more views , best explanation i have ever seen , maybe even the only one that explained the meaning of Heuristic data
@darkside3ng Жыл бұрын
agreed!!!
@sourabhkothari70147 ай бұрын
agreeeeed
@phlooph39718 ай бұрын
bro dropped one of the greatest algorithm explanation videos and then left
@aryoseno112 жыл бұрын
Hands down the best explanation about A* algorithm on KZbin so far.
@RealMadrid21364 жыл бұрын
This was the best explanation I've seen on KZbin! So intuitive!
@RioMilano20023 жыл бұрын
I agree. Best yet
@adityathakur37483 жыл бұрын
True
@AnishKrishnanPlus4 жыл бұрын
Q: What’s a good heurisitic function? A: A good heurisitc function does not overestimate the distance to the goal. This is known as admissibility. Running A* with an admissible heuristic function will always return the shortest path to the goal state. Q: How I get the values for a heuristic function? A: A heuristic value represents the estimated distance from the current node to the cheese. Imagine you’re in a room and you can smell food in the other room. You can just guess how far you are from the food in meters or some other unit of measurement. As long as your estimate is equal to or below the actual distance to the food, the A* search algorithm will work. In more complicated settings, like Pacman, you can estimate the distance between objects using something like the Manhattan distance.
@fangasteraio71514 ай бұрын
i know it has been many years since your upload, but still, i would like to add that a heuristic can be applied but A* will not always find the min path. This can happen IF the graph does NOT contain Euclidian distances. In that case, the heuristic must comply to an even more strict constraint named consistency. Stated as : abs( H(x,G) - H(y,G))
@rayankamdem673818 күн бұрын
I am amazed at how simply such a seemingly complex topic was explained. Best explanation on A* so far!
@drewandfriendsproject Жыл бұрын
It's 5 am and I have a midterm on this at 1pm with a shift from 9am-12pm. Thank you
@willCrazy7688110 ай бұрын
I really love that you explained the heuristic as the smell of cheese. I was struggling at understanding that concept
@vlad_ussr8390Ай бұрын
The best explanation ever for A* algorithm. I have been confused how it works on a graph and not a node grid and finally I see.
@Shaan11s3 ай бұрын
LMAO bro 45 minutes literally in 2 minutes. This is nuts. Thanks for this
@duncancamilleri8614 Жыл бұрын
Gold. You just made it so easy for everyone in such a short time. Thank you very much. You've earned a subscriber.
@StewezMC2 жыл бұрын
The best explenation of the A* algorithm I've ever found! +1
@austinkwon8259 Жыл бұрын
Wow, have tried hard to understand it for like an hour and finally found this video. get me understood just in 2 mins, thanks a bunch!
@enronenron24112 ай бұрын
bro just explained 50 mins lecture in 2 mins that I watched at 2X i.e a minute.
@li-pingho14413 жыл бұрын
This is absolutely the best tutorial of a* algorithm I've seen in youtube. This video deserve more views !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
@matthewblom1620 Жыл бұрын
Thank you, really good. Had a 3 minute or so video for Dijkstra and was looking for something quick as well for A*.
@MarvindaoАй бұрын
that was such a nice way to introduce this concepts.
@BellaMichel Жыл бұрын
Cheers to you sir! I finally understand heuristics intuition.🙂
@playloud002 жыл бұрын
super nice! what an explanation.
@DevFTW2 жыл бұрын
Great video with very simple explanation!
@minhthuhuynh50676 ай бұрын
I'm glad that finally I can find this video
@FlyNadir3 ай бұрын
Oops. It was that easy but no one explained as you men. Thanks ❤❤❤
@covan32896 ай бұрын
you are my god, thank you so much my brother
@seddikio1282 Жыл бұрын
Man we need a whole explained in 2 min playlist XD
@zaynabb.51403 ай бұрын
this explained it better than my professor, tysm
@kacy601411 ай бұрын
Great explanation. So it's just a priority queue that prioritizes nodes that are closer to the goal.
@ogradus2 ай бұрын
20min concept in 2min! ❤
@krishnareddy679210 ай бұрын
you explained it very clearly 👏👏👏
@sujith_TwiceOnce3 ай бұрын
Great Explanation. Good one.
@andreranulfo-dev8607 Жыл бұрын
A very interesting analogy.
@iaroslavtretiakov17555 ай бұрын
Woah, super
@spalonamiotelkadokurzu3892 Жыл бұрын
Brilliant Explanation, shame it doesnt have more views
@mikec93337 ай бұрын
Thank you!
@emirhanbilgic2475 Жыл бұрын
amazing explanation...
@wackyweights6881 Жыл бұрын
holy shit that was an amazing analogy
@wansuliu43054 ай бұрын
Great❤
@steff420 Жыл бұрын
very nicely explained!
@Chicken_Soy11 ай бұрын
Dude thank you so much.
@masterkill1609 Жыл бұрын
nice explanation
@yutao19823 ай бұрын
Does Q* mean Queue (Heap) + A*? Amazing!!!
@markvalman83258 ай бұрын
good one
@the-g8-eye6 ай бұрын
holy cow
@As-iy2ki6 ай бұрын
But how did you assign values for the distances between nodes?
@modetechno77283 ай бұрын
I get the concept, but HOW do you estimate a distance when we don't know?
@LoretoGonzalez-Hernandez Жыл бұрын
Who was the original creator of this video to whom credit is due, from the accent I know that it is not you who explains the video. I am interested in the content of this creator, could you please give the link or the name of the author?
@AnishKrishnanPlus Жыл бұрын
This video was created by Kamyar Ghiam and me. You can find our details in the description of this video.
@LoretoGonzalez-Hernandez Жыл бұрын
Thank you for the information, I do really appreciate it
@abdu11ahh7 ай бұрын
and my Dumb as teacher couldnt explain it in 30 mins
@anthonyandriano4 жыл бұрын
The most important part of this was not mentioned at all. How are the heuristic and distance values initially seeded?
@kamyarghiam96764 жыл бұрын
Right. I think in a 2 minute video, you have to pick and choose what’s the most important thing to learn. The goal of this video was to try to give intuition behind why we use heuristics and what they actually represent, and it never claimed to cover heuristics extensively. Plus, I think your question was actually clarified in OP‘s comment above.
@anthonyandriano4 жыл бұрын
Kam Because adding eight seconds to the video to explain how the numbers are generated would have been too much. Yeah, okay. You also missed the part of my question asking about the distance. Thanks for your passive-aggressive response, though.
@kamyarghiam96764 жыл бұрын
Hi Anthony. Sorry, I did not mean to come off as passive aggressive. You’re correct. It didn’t mention the part about distances.
@benhardsim86292 жыл бұрын
It depends, but one way to determine heuristic value is to calculate the distance between the point where you are standing and the end goal and add it to the total travelled node. Another way to calculate heuristic value is using Manhattan distance.