Naive-Bayes-Classifier | 朴素贝叶斯文本分类器 | Machine Learning library

 by   lining0806 Python Version: Current License: No License

kandi X-RAY | Naive-Bayes-Classifier Summary

kandi X-RAY | Naive-Bayes-Classifier Summary

Naive-Bayes-Classifier is a Python library typically used in Artificial Intelligence, Machine Learning applications. Naive-Bayes-Classifier has no bugs, it has no vulnerabilities and it has low support. However Naive-Bayes-Classifier build file is not available. You can download it from GitHub.

**分类器:**朴素贝叶斯分类器 NBC(Naive Bayesian Classifier).
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              Naive-Bayes-Classifier has a low active ecosystem.
              It has 130 star(s) with 78 fork(s). There are no watchers for this library.
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              It had no major release in the last 6 months.
              Naive-Bayes-Classifier has no issues reported. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of Naive-Bayes-Classifier is current.

            kandi-Quality Quality

              Naive-Bayes-Classifier has 0 bugs and 0 code smells.

            kandi-Security Security

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

            kandi-License License

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

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              Naive-Bayes-Classifier releases are not available. You will need to build from source code and install.
              Naive-Bayes-Classifier has no build file. You will be need to create the build yourself to build the component from source.
              Installation instructions are not available. Examples and code snippets are available.
              Naive-Bayes-Classifier saves you 41 person hours of effort in developing the same functionality from scratch.
              It has 110 lines of code, 6 functions and 1 files.
              It has low code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed Naive-Bayes-Classifier and discovered the below as its top functions. This is intended to give you an instant insight into Naive-Bayes-Classifier implemented functionality, and help decide if they suit your requirements.
            • Main function for text processing .
            • Classify feature classification .
            • Return a list of train features .
            • return a list of all words in the list
            • Make a set of words .
            Get all kandi verified functions for this library.

            Naive-Bayes-Classifier Key Features

            No Key Features are available at this moment for Naive-Bayes-Classifier.

            Naive-Bayes-Classifier Examples and Code Snippets

            No Code Snippets are available at this moment for Naive-Bayes-Classifier.

            Community Discussions

            QUESTION

            Difficulties to get the correct posterior value in a Naive Bayes Implementation
            Asked 2020-Nov-12 at 14:44

            For studying purposes, I've tried to implement this "lesson" using python but "without" sckitlearn or something similar.

            My attempt code is the follow:

            ...

            ANSWER

            Answered 2020-Nov-12 at 11:43

            You haven't multiplied by the priors p(Sport) = 3/5 and p(Not Sport) = 2/5. So just updating your answers by these ratios will get you to the correct result. Everything else looks good.

            So for example you implement p(a|Sports) x p(very|Sports) x p(close|Sports) x p(game|Sports) in your math.prod(p) calculation but this ignores the term p(Sport). So adding this in (and doing the same for the not sport condition) fixes things.

            In code this can be achieved by:

            Source https://stackoverflow.com/questions/64745233

            QUESTION

            AODE Machine Learning in R
            Asked 2020-Mar-12 at 13:00

            I wanted to know if really AODE may be better than Naive Bayes in its way, as the description says:

            https://cran.r-project.org/web/packages/AnDE/AnDE.pdf

            --> "AODE achieves highly accurate classification by averaging over all of a small space."

            https://www.quora.com/What-is-the-difference-between-a-Naive-Bayes-classifier-and-AODE

            --> "AODE is a weird way of relaxing naive bayes' independence assumptions. It is no longer a generative model, but it relaxes the independence assumptions in a slightly different (and less principled) way than logistic regression does. It replaces the convex optimization problem used in training a logistic regression classifier by a quadratic (on the number of features) dependency on both training and test times."

            But when I experiment it, I found that the predict results seems off, I implemented it with these codes:

            ...

            ANSWER

            Answered 2020-Mar-12 at 13:00

            If you check out the vignette for the function:

            train: data.frame : training data. It should be a data frame. AODE works only discretized data. It would be better to discreetize the data frame before passing it to this function.However, aode discretizes the data if not done before hand. It uses an R package called discretization for the purpose. It uses the well known MDL discretization technique.(It might fail sometimes)

            By default, the discretization function from arules cuts it into 3, which may not be enough for iris. So I first reproduce the result you have with the discretization by arules:

            Source https://stackoverflow.com/questions/60647274

            QUESTION

            key error not in index while cross validation
            Asked 2019-Apr-24 at 18:12

            I have applied svm on my dataset. my dataset is multi-label means each observation has more than one label.

            while KFold cross-validation it raises an error not in index.

            It shows the index from 601 to 6007 not in index (I have 1...6008 data samples).

            This is my code:

            ...

            ANSWER

            Answered 2018-Aug-16 at 05:53

            train_index, test_index are integer indices based on the number of rows. But pandas indexing dont work like that. Newer versions of pandas are more strict in how you slice or select data from them.

            You need to use .iloc to access the data. More information is available here

            This is what you need:

            Source https://stackoverflow.com/questions/51852551

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

            Vulnerabilities

            No vulnerabilities reported

            Install Naive-Bayes-Classifier

            You can download it from GitHub.
            You can use Naive-Bayes-Classifier like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.

            Support

            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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