What is the name for this classification algorithm?












1















Can you help me find the name of this classification algorithm :



Assume we have data:
$n$ dimensional feature vectors we want to classify in two classes.

We model the classes as two $n$ dimensional gaussian distributions estimated from the data.

We classify a new vector to the class that maximizes the PDF(probability density function) at that point.










share|cite|improve this question























  • Two component Gaussian mixture model?

    – Bey
    25 mins ago
















1















Can you help me find the name of this classification algorithm :



Assume we have data:
$n$ dimensional feature vectors we want to classify in two classes.

We model the classes as two $n$ dimensional gaussian distributions estimated from the data.

We classify a new vector to the class that maximizes the PDF(probability density function) at that point.










share|cite|improve this question























  • Two component Gaussian mixture model?

    – Bey
    25 mins ago














1












1








1


1






Can you help me find the name of this classification algorithm :



Assume we have data:
$n$ dimensional feature vectors we want to classify in two classes.

We model the classes as two $n$ dimensional gaussian distributions estimated from the data.

We classify a new vector to the class that maximizes the PDF(probability density function) at that point.










share|cite|improve this question














Can you help me find the name of this classification algorithm :



Assume we have data:
$n$ dimensional feature vectors we want to classify in two classes.

We model the classes as two $n$ dimensional gaussian distributions estimated from the data.

We classify a new vector to the class that maximizes the PDF(probability density function) at that point.







classification normal-distribution multivariate-analysis pdf algorithms






share|cite|improve this question













share|cite|improve this question











share|cite|improve this question




share|cite|improve this question










asked 4 hours ago









SoloNasusSoloNasus

1585




1585













  • Two component Gaussian mixture model?

    – Bey
    25 mins ago



















  • Two component Gaussian mixture model?

    – Bey
    25 mins ago

















Two component Gaussian mixture model?

– Bey
25 mins ago





Two component Gaussian mixture model?

– Bey
25 mins ago










1 Answer
1






active

oldest

votes


















2














Probably Quadratic Discriminant Analysis.



There are also names for different constraints you could make:




  1. Covariance matrices of both classes are equal - Linear Discriminant Analysis.


  2. Only diagonal elements of the covariance matrix are non-zero - Naive Bayes Classifier


  3. Covariance matrix is identity (diagonals = 1, non-diagonals = 0) - Nearest Centroid Classifier







share|cite|improve this answer

























    Your Answer





    StackExchange.ifUsing("editor", function () {
    return StackExchange.using("mathjaxEditing", function () {
    StackExchange.MarkdownEditor.creationCallbacks.add(function (editor, postfix) {
    StackExchange.mathjaxEditing.prepareWmdForMathJax(editor, postfix, [["$", "$"], ["\\(","\\)"]]);
    });
    });
    }, "mathjax-editing");

    StackExchange.ready(function() {
    var channelOptions = {
    tags: "".split(" "),
    id: "65"
    };
    initTagRenderer("".split(" "), "".split(" "), channelOptions);

    StackExchange.using("externalEditor", function() {
    // Have to fire editor after snippets, if snippets enabled
    if (StackExchange.settings.snippets.snippetsEnabled) {
    StackExchange.using("snippets", function() {
    createEditor();
    });
    }
    else {
    createEditor();
    }
    });

    function createEditor() {
    StackExchange.prepareEditor({
    heartbeatType: 'answer',
    autoActivateHeartbeat: false,
    convertImagesToLinks: false,
    noModals: true,
    showLowRepImageUploadWarning: true,
    reputationToPostImages: null,
    bindNavPrevention: true,
    postfix: "",
    imageUploader: {
    brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
    contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
    allowUrls: true
    },
    onDemand: true,
    discardSelector: ".discard-answer"
    ,immediatelyShowMarkdownHelp:true
    });


    }
    });














    draft saved

    draft discarded


















    StackExchange.ready(
    function () {
    StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstats.stackexchange.com%2fquestions%2f387029%2fwhat-is-the-name-for-this-classification-algorithm%23new-answer', 'question_page');
    }
    );

    Post as a guest















    Required, but never shown

























    1 Answer
    1






    active

    oldest

    votes








    1 Answer
    1






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    2














    Probably Quadratic Discriminant Analysis.



    There are also names for different constraints you could make:




    1. Covariance matrices of both classes are equal - Linear Discriminant Analysis.


    2. Only diagonal elements of the covariance matrix are non-zero - Naive Bayes Classifier


    3. Covariance matrix is identity (diagonals = 1, non-diagonals = 0) - Nearest Centroid Classifier







    share|cite|improve this answer






























      2














      Probably Quadratic Discriminant Analysis.



      There are also names for different constraints you could make:




      1. Covariance matrices of both classes are equal - Linear Discriminant Analysis.


      2. Only diagonal elements of the covariance matrix are non-zero - Naive Bayes Classifier


      3. Covariance matrix is identity (diagonals = 1, non-diagonals = 0) - Nearest Centroid Classifier







      share|cite|improve this answer




























        2












        2








        2







        Probably Quadratic Discriminant Analysis.



        There are also names for different constraints you could make:




        1. Covariance matrices of both classes are equal - Linear Discriminant Analysis.


        2. Only diagonal elements of the covariance matrix are non-zero - Naive Bayes Classifier


        3. Covariance matrix is identity (diagonals = 1, non-diagonals = 0) - Nearest Centroid Classifier







        share|cite|improve this answer















        Probably Quadratic Discriminant Analysis.



        There are also names for different constraints you could make:




        1. Covariance matrices of both classes are equal - Linear Discriminant Analysis.


        2. Only diagonal elements of the covariance matrix are non-zero - Naive Bayes Classifier


        3. Covariance matrix is identity (diagonals = 1, non-diagonals = 0) - Nearest Centroid Classifier








        share|cite|improve this answer














        share|cite|improve this answer



        share|cite|improve this answer








        edited 3 hours ago

























        answered 3 hours ago









        Karolis KoncevičiusKarolis Koncevičius

        1,74921425




        1,74921425






























            draft saved

            draft discarded




















































            Thanks for contributing an answer to Cross Validated!


            • Please be sure to answer the question. Provide details and share your research!

            But avoid



            • Asking for help, clarification, or responding to other answers.

            • Making statements based on opinion; back them up with references or personal experience.


            Use MathJax to format equations. MathJax reference.


            To learn more, see our tips on writing great answers.




            draft saved


            draft discarded














            StackExchange.ready(
            function () {
            StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstats.stackexchange.com%2fquestions%2f387029%2fwhat-is-the-name-for-this-classification-algorithm%23new-answer', 'question_page');
            }
            );

            Post as a guest















            Required, but never shown





















































            Required, but never shown














            Required, but never shown












            Required, but never shown







            Required, but never shown

































            Required, but never shown














            Required, but never shown












            Required, but never shown







            Required, but never shown







            Popular posts from this blog

            How to make a Squid Proxy server?

            Is this a new Fibonacci Identity?

            19世紀