Naive Bayes is a popular (baseline) method for text-classification.
Questions tagged [naivebayes]
1035 questions
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votes
1 answer
How to match test columns with train data?
Getting an error while trying to use naive bayes.
from sklearn.naive_bayes import GaussianNB
import pandas as pd
df = pd.read_csv('https://raw.githubusercontent.com/sjwhitworth/golearn/master/examples/datasets/tennis.csv')
X_train =…
shantanuo
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3 answers
How to build a text classifier for words?
I am trying to classify a large number of words into 5 categories. Examples of classes and strings for each class include:
invoice-Number : "inv123","in12","123"
invoice-Date : "22/09/1994","22-Mon-16"
vendor-Name : "samplevendorname"
email …
George Joseph
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1 answer
How to classify matrices (or data sets)
Given a classification problem, the training data looks as follows:
input - output
--------------
A 100
B 150
C 170
..............
where A,B,C are big data sets, each with 6 variables and around 5000 rows.
The problem is: how do…
ashcrok
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votes
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Naive bayes classification for NO text-classification
Modelling the feature space for a text document is quite easy.For example, I can take every word from a text (training data) as a feature.If a particular word (e.g. "dog") encounters multiple times in (classified) training examples (e.g. classified…
Lisa
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votes
1 answer
NaiveBayes Classification in NLTK using python
I have the following datasets...
dataset
I have load the data using this
import numpy as np
import pandas as pd
input_file = "C:/Users/User/Documents/R/exp.csv"
df = pd.read_csv(input_file, header = 0)
Now, I am trying to do this...
classifier =…
Hanson
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votes
3 answers
R - How to add columns to a dataset incrementally using a loop?
I'm trying to get the error rates for a Naive Bayes classifier, by adding in each variable incrementally. For example I have 25 variables in my dataset. I want to get the error rates of the model as I add in one variable at a time. So you know it…
Eoin
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votes
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Making prediction whether user will be able to solve a thing or not
I have 3 datasets in csv
problem.csv with attributes:
id
level
accuracy
solved_count
error_count
tag1
tag2
tag3
tag4
tag5
Submission.csv with attibutes:
user_id
problem_id
solved_status
user.csv with
user_id
solved_count
attempts
I want to now…
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votes
1 answer
ValueError: could not convert string to float: 'Pregnancies'
def loadCsv(filename):
lines = csv.reader(open('diabetes.csv'))
dataset = list(lines)
for i in range(len(dataset)):
dataset[i] = [float(x) for x in dataset[i]
return dataset
Hello, I'm trying to implement Naive-Bayes but its…
Salman Khan
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votes
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Naive Bayes 2-class classification, subscript out of bounds
There are two data frames: trainReady(288obs.) and testReady(112obs.). These data frames contains 55 attributes (54 continuous and 1 binary, class attribute). I have already discretized those 54 attributes to 10 divisions, levels (with equal number…
Czarek
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votes
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usage of naive bayes Model for prediction
Hi all I am new to scala and spark MLIB.
I have a dataset of diseses of diseases along with the symptoms which are in the following format:
Disease,symptom1 symptom2 symptom3
I have almost 300 entries which are in the above mentioned format in a CSV…
Sandeep Dvs
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Does Naive Bayes algorithm classify words or phrases?
I want to use the Naive Bayes algorithm available on Text blob package in python.
Does it classify "I love terrorism and I hate peace" and "I love peace and hate terrorism" the same way?
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votes
1 answer
What representation of chat text data should I use for user classification?
I'm trying to train a classifier to classify text from a chat between 2 users so later on I can predict who of the two users is more likely to say X sentence/word. To get there I mined the text from the chat log and ended up with two arrays of…
xgrimau
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3 answers
What does "Naive" Bayes mean in Machine learning?
What does "Naive" Bayes mean in Machine learning?
haguki-taro
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Training and Testing Data set for classification text file
Suppose we have 10000 text file and We would like to classify as political ,health,weather,sports,Science ,Education,.........
I need training data set for classification of text documents and I am Naive Bayes classification Algorithm. Anyone can…
nikhil channa
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