Bandits | A JavaScript demo of some multi-armed bandits | Reinforcement Learning library
kandi X-RAY | Bandits Summary
kandi X-RAY | Bandits Summary
A multi-armed bandit problem is described by the following game wherein an agent tries to maximise the total reward it receives:. This very simple game illustrates the exploration/exploitation dilemma: if an agent finds an high-rewarding arm early should it stick with it and possibly forego a different arm with a high reward?.
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Top functions reviewed by kandi - BETA
- Run the game .
- Play a game .
- Make a selector
- Generate markers for agent
- creates list
- Builds the constructor .
- Create a widget with a given kind .
- Calculates the total of the reward
- Run the overall average
- Make a new page
Bandits Key Features
Bandits Examples and Code Snippets
Community Discussions
Trending Discussions on Bandits
QUESTION
Please i need help, am having trouble trying to put my scraped data into a data frame that has 3 columns i.e. date, source and keywords extracted from each scraped website for further text analysis, my code is borrowed from https://stackoverflow.com/users/12229253/foreverlearning and is given below:
...ANSWER
Answered 2022-Feb-24 at 02:17I played around with it and here is how you can make it into a data frame. Assuming that you wanted to use pandas in the first place:
QUESTION
Environment:
- Python: 3.9
- OS: Windows 10
When I try to create the ten armed bandits environment using the following code the error is thrown not sure of the reason.
...ANSWER
Answered 2022-Feb-08 at 08:01It could be a problem with your Python version: k-armed-bandits library was made 4 years ago, when Python 3.9 didn't exist. Besides this, the configuration files in the repo indicates that the Python version is 2.7 (not 3.9).
If you create an environment with Python 2.7 and follow the setup instructions it works correctly on Windows:
QUESTION
I am trying to write a simple web-page embedded program in javascript. Right now, I am attempting to write a linked list of all active buttons on the screen at any given time. However, when I attempt to iterate through a linked list that isn't empty, the program freezes.
This is the relevant block of code:
...ANSWER
Answered 2021-Dec-24 at 00:46You're only moving to the next runner when the current runner is inside the button. So when your while
loop gets to a runner that isn't in the button, it gets stuck on that element and loops infinitely.
Take the runner = runner.next;
line out of the if.
QUESTION
I’m checking Vowpal Wabbit’s documentation for how it’s actually learning. Traditional Contextual Bandits learn by having F(context, action) = Reward, find action that maximizes Reward, and returns action as recommendation. The “F” is any model; linear, neural net, xgb, etc... that is learned through batch processing. I.E. collect 100 contexts, 100 actions, 100 rewards, train ML model, then do it again.
Now, on VW it says it reduces “all contextual bandit problems to cost-sensitive multiclass classification problems.” Ok, read up on that but there still needs to be some function F to minimize this problem doesn’t there?
I’ve thoroughly read the documentation and either:
- Missed what the default learner is for batch processing or,
- Don’t understand how VW is actually learning in this cost-sensitive framework?
I’ve even scoured the vw.learn() method inside pyvwlib. Thanks for the help!
...ANSWER
Answered 2020-Dec-03 at 16:29Missed what the default learner is for batch processing or,
The default learner in VW is SGD on a linear representation, but this can be modified using command line arguments.
Don’t understand how VW is actually learning in this cost-sensitive framework?
In contextual bandit learning, the reward associated with the taken action is presented for learning. VW in ips mode converts this into a reward for each action by putting zeros at the actions not taken and importance-weighting the reward for the action taken. Having imputed the missing data, it then treats the problem as a supervised learning problem.
QUESTION
Good afternoon.
I am attempting to make a small game inspired by Among Us. The game will feature two bandits if there are 7 or more players, and one bandit if the player count is 6 or less.
I have run into a problem though, so I am attempting to create multiple constructors, here is how I imagine the layout to be.
Console -> Input names separated by comma -> String[] names -> newPlayer Constructor
The newPlayer constructor will then determine the number of players, and sort them into their respective constructor, using Math.random to determine the bandits.
Bandit route newPlayer Constructor -> Bandit Constructor -> Player Constructor
Cowboy route newPlayer Constructor -> Bandit Constructor -> Player Constructor
The problem is that after the data is given to the Player constructor, I'd like to create an array of type Player[], so I can easily access the data within, without creating invidual Player variables, and then making this array accessible to the rest of the classes within the package. I'm looking for the most concise way to do it.
Although I feel like this may not require code for context, I'll provide it in case it helps answer my question.
Bandit Class
...ANSWER
Answered 2020-Sep-29 at 17:33"I'd like the array of Players to be created within the tester class": I would suggest using List interface instead of native java array (much easier to use). Something like this: List players = new ArrayList<>()
and you can use players.add( /*player*/ )
and players.get(/*idx*/)
to add and retrieve.
"accessible to the rest of the classes within the package": a default class property is accessible for classes within the same package. Like this: List players;
or already initialized: List players = new ArrayList<>();
. Don't use any modifier like private
, public
or protected
and it will mean this property is "default" access (within same package). See: https://docs.oracle.com/javase/tutorial/java/javaOO/accesscontrol.html
QUESTION
In my game, the "boar" line of code will execute if the object hits a boar, but the "bandit" line of script will not execute if I hit a bandit.
Both of the game objects have the "enemy" tag.
If I move the bandit line of code to the top, that line will now work when colliding with a bandit but the boar code below it will not when collided with a boar.
...ANSWER
Answered 2020-Sep-18 at 22:30The reason why it doesn't work is because your program looks and says "yes i hit an object with the tag enemy" checks the next line trys to fetch the bandit script or whatever one is on top then if lets say bandit script is first it will come up empty and will never make it to the boar script it will only ever work with whichever is on top if you have two objects with the same tag and different scripts
Give each enemy a different tag. Then write something like --
QUESTION
I have a simple table set up with a generator above it that varies in text lengths. Every so often I get an extra line and that shifts my table down. Is there any way I could keep my table fixed in one position?
Please ignore the Javascript and only look at CSS and HTML, specifically the sections related to ButtonSection and the Table. Thanks
...ANSWER
Answered 2020-May-02 at 08:29You could try and wrap the text that varies in length in a div element and fix it's height, so that the longest text doesn't move the table.
In your html:
QUESTION
I am trying to plot two plots next to each other in python, one a linear result of the experiment and one a logarithmic transformation. The goal would be to place the plots next to each other similar to par(mfrow=c(1,2))
in R .
ANSWER
Answered 2020-Apr-01 at 06:29As @JohanC pointed out in the comments, you are confusing the syntax of plt.subplots()
and plt.subplot()
. The line
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