Apriori | c++ implementation of apriori algorithm | Machine Learning library

by bowbowbow C++ Version: Current License: MIT

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | Apriori Summary

Apriori is a C++ library typically used in Artificial Intelligence, Machine Learning, Deep Learning, Example Codes applications. Apriori has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

C++ Implementation of Apriori Algorithm.

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Support

Apriori has a low active ecosystem.

It has 23 star(s) with 18 fork(s). There are 2 watchers for this library.

It had no major release in the last 6 months.

There are 1 open issues and 0 have been closed. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of Apriori is current.

Quality

Apriori has no bugs reported.

Security

Apriori has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

Apriori is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

Apriori releases are not available. You will need to build from source code and install.

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Apriori Key Features

No Key Features are available at this moment for Apriori.

Apriori Examples and Code Snippets

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Community Discussions

Trending Discussions on Apriori

Symfony Doctrine does not hydrate the whole chain

TypeError: apriori() got an unexpected keyword argument 'mini_support'

Python apriori returning Generator instead of Dataframe

How to speed up a while-loop in R (perhaps using dopar)?

Where is the documentation to write an event handler for input text box?

pandas create median over rows on specific columns

Count frequency of itemsets in the given data frame

How can i make arules.apriori work in python using rpy2

Converting a single column Dataframe to XTS is losing column name

Argmax - differentiate between array having same values and array having largest zeroth component

QUESTION

Symfony Doctrine does not hydrate the whole chain

Asked 2021-Jun-07 at 14:25

I simplified my 3 entities as much as possible below, it shows a simple relationship of Currency <- 1:1 -> Balance <- 1:N -> BalanceLog

Entity/Currency.php

...

ANSWER

Answered 2021-Jun-07 at 14:25

I did some debugging and it looks that BalanceLog does not create a full Balance Entity instance, but instead a Proxy. The solution was to add eager loading to the BalanceLog class

Source https://stackoverflow.com/questions/67869823

QUESTION

TypeError: apriori() got an unexpected keyword argument 'mini_support'

Asked 2021-Jun-07 at 11:32

def perform_rule_calculation(transact_items_matrix, rule_type="fpgrowth", min_support=0.001):
    
    start_time = 0
    total_execution = 0
    
    if(not rule_type=="fpgrowth"):
        start_time = time.time()
        rule_items = apriori(transact_items_matrix, 
                       mini_support=min_support, 
                       use_colnames=True, low_memory=True)
        total_execution = time.time() - start_time
        print("Computed Apriori!")
        
    n_range = range(1, 10, 1)
   list_time_ap = []
   list_time_fp = []
for n in n_range:
    time_ap = 0
    time_fp = 0
    min_sup = float(n/100)
    time_ap = perform_rule_calculation(trans_encoder_matrix, rule_type="fpgrowth", min_support=min_sup)
    time_fp = perform_rule_calculation(trans_encoder_matrix, rule_type="aprior", min_support=min_sup)
    list_time_ap.append(time_ap)
    list_time_fp.append(time_fp)

...

ANSWER

Answered 2021-Jun-07 at 11:32

its just a typo. you have typed mini instead of min while generating rules. I have corrected it below

Source https://stackoverflow.com/questions/67870755

QUESTION

Python apriori returning Generator instead of Dataframe

Asked 2021-May-28 at 08:24

I'm writing code that takes a small portion of a dataset (shopping baskets), converts it into a hot encoded dataframe and I want to run mlxtend's apriori algorithm on it to get frequent itemsets.

However, whenever I run the apriori algorithm, it seems to run instantly and it returns a generator object rather than a dataframe. I followed the instructions from the documentation, and in their example it shows that apriori returns a dataframe. What am I doing wrong?

Here is my code:

...

ANSWER

Answered 2021-May-28 at 08:24

You have a name conflict in your imports:

Source https://stackoverflow.com/questions/67735207

QUESTION

How to speed up a while-loop in R (perhaps using dopar)?

Asked 2021-May-26 at 10:32

I'm trying to process a huge text file containing dozens millions lines of text. The text file contains the results of a convnet analysis of several millions of images and looks like this:

...

ANSWER

Answered 2021-May-26 at 10:32

Thank you @Bas! I tested your suggestion on a Linux machine: for a file with ~239 million lines it took less than 1 min. By adding >lines.txt I could save the results. Interestingly, my first readLines R script needed "only" 29 min, which was surprisingly fast compared with my first experience (so I might have had some problem with my Windows computer at work which was not related to R).

Source https://stackoverflow.com/questions/67686759

QUESTION

Where is the documentation to write an event handler for input text box?

Asked 2021-May-13 at 21:45

Originally I wanted to know:

How do I write a handler for this?

...

ANSWER

Answered 2021-Mar-13 at 05:20

You can get the types of all the DOM attributes from https://github.com/rescript-lang/rescript-react/blob/v0.10.1/src/ReactDOM.res

This file contains bindings to ReScript-React's subset of DOM attributes. It has:

Source https://stackoverflow.com/questions/66608677

QUESTION

pandas create median over rows on specific columns

Asked 2021-Mar-24 at 21:10

So, say I have a sample DataFrame as:

...

ANSWER

Answered 2021-Mar-24 at 21:10

Your reasoning was spot on. Here it is in code.

Source https://stackoverflow.com/questions/66789271

QUESTION

Count frequency of itemsets in the given data frame

Asked 2021-Mar-03 at 05:00

I have following data frame,

...

ANSWER

Answered 2021-Feb-20 at 23:59

itemsets = {(39, 205),(39, 205, 401), (143, 157), (143, 166), (175, 178), (175, 190)}

x = [[39,120,124,205,401,581,704,814,825,834],
[35,39,205,712,733,759,854,950],
[39,422,449,704,825,857,895,937,954,964]]

data = pd.DataFrame(x)

for itemset in itemsets:
    print(itemset)
    count = 0
    for i in range(len(data)):
        flag = True
        for item in itemset:
            if item not in data.loc[i].value_counts():
                flag = False
        if flag:
            count += 1
    print(count)

Source https://stackoverflow.com/questions/66295267

QUESTION

How can i make arules.apriori work in python using rpy2

Asked 2021-Feb-25 at 16:41

I'm trying to run an apriori algorithm in python using rpy2. i've hit a wall because I want to give the algorithm some parameters but than the code doesn't work. if I leave the parameter blank it runs. Is there a way to make the apriori algorithm work with paramters?

I've got some R experience and in R my code would look something like this.

...

ANSWER

Answered 2021-Feb-25 at 16:41

I've found the answer to the question above on a different forum.

you need to add the following code

Source https://stackoverflow.com/questions/66371778

QUESTION

Converting a single column Dataframe to XTS is losing column name

Asked 2021-Feb-13 at 02:24

I have a situation where I need to convert a data frame object into XTS object. The first column of my data frame is always a date object and is always named "Date". However, i would not know apriori, whether my dataframe object has 1 column (excluding the date) or more columns.

The issue is this: When i try to convert the dataframe object into xts using xts(), the resulting XTS object has the correct column names when the dataframe object has more than 1 columns. BUT if it has only one data column (excluding the date), it loses its column name. See the code below.

...

ANSWER

Answered 2021-Feb-13 at 02:24

When you have only one column in the data the default nature is to drop it's dimensions and convert it into vector.

Source https://stackoverflow.com/questions/66181087

QUESTION

Argmax - differentiate between array having same values and array having largest zeroth component

Asked 2021-Jan-28 at 21:11

I am implementing the argmax function form numpy library to get the index of the largest element in a vector. Following is my code.

...

ANSWER

Answered 2021-Jan-28 at 21:11

import numpy as np

a = np.array([2, 0, 0, 0, 0])
idx = np.argmax(a) if ~np.all(a == a[0]) else None
print(idx)  # 0

b = np.array([0, 0, 0, 0, 0])
idx = np.argmax(b) if ~np.all(b == b[0]) else None
print(idx)  # None

# Alternative solution

a = np.array([2, 0, 0, 0, 0])
idx = np.argmax(a) - np.all(a == a[0]).astype(int)
print(idx)  # 0

b = np.array([0, 0, 0, 0, 0])
idx = np.argmax(b) - np.all(b == b[0]).astype(int)
print(idx)  # -1

Source https://stackoverflow.com/questions/65944826

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Vulnerabilities

No vulnerabilities reported

Install Apriori

You can download it from GitHub.

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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