Questions tagged [sentiment-analysis]

Sentiment analysis refers to categorizing some given data as to what sentiment(s) it expresses. Usually, it refers to extracting sentiment from text, e.g. tweets or blog posts.

2020 questions
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Textblob sentiment algorithm

Does anyone know how textblob sentiment is working? I know it is working based on Pattern but I could not find any article or document explain how pattern assigns polarity value to a sentence.
Sahar
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Why is google natural language returning an incorrect beginOffset for analyzed string?

I am using google-cloud/language api to make an #annotate call and analyze entities and sentiments from a csv of comments which I have taken from various online resources. To begin with, the string I am trying to analyze includes commentId's so I…
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Scikit-learn Cannot clone object ​*, as the constructor does not seem to set parameter *​ in VotingClassifier

A similar question has been asked here, but without posting relevant code. I'm trying to create a VotingClassifier based on the Scikit-learn VotingClassifier. FYI the SGD, Bernoulli and MaxEnt classifiers are SKLearn classifiers that are made on…
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Adding Special Case Idioms to Python Vader Sentiment

I've been using Vader Sentiment to do some text sentiment analysis and I noticed that my data has a lot of "way to go" phrases that were incorrectly being classified as neutral: In[11]: sentiment('way to go John') Out[11]: {'compound': 0.0, 'neg':…
Jason
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Sentiment analysis for sentences- positive, negative and neutral

I'm designing a text classifier in Python using NLTK. One of the features considered in every sentence is it's sentiment. I want to weight sentences with either positive or negative sentiments more that those without any sentiment(neutral…
Jacob Vasu
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sentiment analysis of Non-English tweets in python

Objective: To classify each tweet as positive or negative and write it to an output file which will contain the username, original tweet and the sentiment of the tweet. Code: import…
mnm
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How do people use n-grams for sentiment analysis, considering that as n increases, the memory requirement also increases rapidly?

I am trying to do Sentiment Analysis on Tweets using Python. To begin with, I've implemented an n-grams model. So, lets say our training data is I am a good kid He is a good kid, but he didn't get along with his sister much Unigrams:
P.C.
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How do I transform text into TF-IDF format using Weka in Java?

Suppose, I have following sample ARFF file with two attributes: (1) sentiment: positive [1] or negative [-1] (2) tweet: text @relation sentiment_analysis @attribute sentiment {1, -1} @attribute tweet string @data -1,'is upset that he can\'t update…
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Bias towards negative sentiments from Stanford CoreNLP

I'm experimenting with deriving sentiment from Twitter using Stanford's CoreNLP library, a la https://www.openshift.com/blogs/day-20-stanford-corenlp-performing-sentiment-analysis-of-twitter-using-java - so see here for the code that I'm…
proinsias
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Estimating document polarity using R's qdap package without sentSplit

I'd like to apply qdap's polarity function to a vector of documents, each of which could contain multiple sentences, and obtain the corresponding polarity for each document. For example: library(qdap) polarity(DATA$state)$all$polarity # Results: …
Max Ghenis
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Sentiment analysis in R (not using tm.plugin.tags)

I'm using R version 3.0.2 and have installed the package tm. Previously, I also loaded a package called tm.plugin.tags. To get a measure of whether a text corpus was positive or negative I used the following approach:…
djq
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How to use SentiWordNet

I need to do sentiment analysis on some csv files containing tweets. I'm using SentiWordNet to do the sentiment analysis. I got the following piece of sample java code they provided on their site. I'm not sure how to use it. The path of the csv file…
Belgarion
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Is there a set of adjective word list for positive or negative polarity

I am working on sentiment analysis. I thought if there is any available set of adjectives indicating positive/negative(like for positive: good,awesome,amazing,) meaning? and the second thing is a set of data from which i can use as a test case.
Harshil Shah
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Free Library for Sentiment Analysis (on Tweets) in C#

I need a simple Sentiment Analysis library to use in my ASP.NET application. The library should be able to work on short strings (Twitter tweets have a maximum length of 140 characters long), and only needs to classify the tweets as positive or…
Rachel
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Implementation of AdamW is deprecated and will be removed in a future version. Use the PyTorch implementation torch.optim.AdamW

How to fix this deprecated AdamW model? I tried to use the BERT model to perform a sentiment analysis on the hotel reviews, when I run this piece of code, it prompts the following warning. I am still studying the transformers and I don't want the…