Bandits | A JavaScript demo of some multi-armed bandits | Reinforcement Learning library

 by   mreid JavaScript Version: Current License: No License

kandi X-RAY | Bandits Summary

kandi X-RAY | Bandits Summary

Bandits is a JavaScript library typically used in Artificial Intelligence, Reinforcement Learning applications. Bandits has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

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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            kandi-support Support

              Bandits has a low active ecosystem.
              It has 38 star(s) with 9 fork(s). There are 5 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              Bandits has no issues reported. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of Bandits is current.

            kandi-Quality Quality

              Bandits has 0 bugs and 0 code smells.

            kandi-Security Security

              Bandits has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              Bandits code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              Bandits does not have a standard license declared.
              Check the repository for any license declaration and review the terms closely.
              OutlinedDot
              Without a license, all rights are reserved, and you cannot use the library in your applications.

            kandi-Reuse Reuse

              Bandits releases are not available. You will need to build from source code and install.
              Bandits saves you 17 person hours of effort in developing the same functionality from scratch.
              It has 48 lines of code, 0 functions and 4 files.
              It has low code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed Bandits and discovered the below as its top functions. This is intended to give you an instant insight into Bandits implemented functionality, and help decide if they suit your requirements.
            • 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
            Get all kandi verified functions for this library.

            Bandits Key Features

            No Key Features are available at this moment for Bandits.

            Bandits Examples and Code Snippets

            No Code Snippets are available at this moment for Bandits.

            Community Discussions

            QUESTION

            How do I put my scraped data into a data frame
            Asked 2022-Feb-24 at 02:17

            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 02:17

            I 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:

            Source https://stackoverflow.com/questions/71196936

            QUESTION

            gym package not identifying ten-armed-bandits-v0 env
            Asked 2022-Feb-08 at 08:01

            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 08:01

            It 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:

            Source https://stackoverflow.com/questions/70858340

            QUESTION

            Javascript linked list freezes program
            Asked 2021-Dec-24 at 00:46

            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 00:46

            You'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.

            Source https://stackoverflow.com/questions/70467983

            QUESTION

            What is Vowpal Wabbit’s default learner for CMAB Framework?
            Asked 2020-Dec-03 at 16:29

            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:

            1. Missed what the default learner is for batch processing or,
            2. 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 16:29

            Missed 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.

            Source https://stackoverflow.com/questions/64940685

            QUESTION

            Creating array of objects; Best way to do it?
            Asked 2020-Sep-29 at 17:33

            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

            Source https://stackoverflow.com/questions/64124214

            QUESTION

            Unity C#, Line of code not executing properly
            Asked 2020-Sep-19 at 08:26

            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 22:30

            The 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 --

            Source https://stackoverflow.com/questions/63962832

            QUESTION

            How do I not have my table shift down when text lengths change? (Keep the table fixed in one position)
            Asked 2020-May-02 at 08:29

            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 08:29

            You 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:

            Source https://stackoverflow.com/questions/61551807

            QUESTION

            Plot linear plot and log plot next to each other in Python. Similar to mfrow=c(2,1) in R
            Asked 2020-Apr-01 at 06:29

            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 06:29

            As @JohanC pointed out in the comments, you are confusing the syntax of plt.subplots() and plt.subplot(). The line

            Source https://stackoverflow.com/questions/60958362

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install Bandits

            You can download it from GitHub.

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            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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