Four Sentiment Analysis Accuracy Challenges in NLP

  18. September 2023, von Sebastian

Sentiment Analysis Sentiment Analysis in Natural Language Processing

what is sentiment analysis in nlp

But for sentences like “I do not call this film a comedy movie,” the effect of the negation word “not” is until the end of the sentence. The original meaning of the words changes if a positive or negative word falls inside the scope of negation—in that case, opposite polarity will be returned. Training time depends on the hardware you use and the number of samples in the dataset. In our case, it took almost 10 minutes using a GPU and fine-tuning the model with 3,000 samples. The more samples you use for training your model, the more accurate it will be but training could be significantly slower.

what is sentiment analysis in nlp

In this tutorial you will use the process of lemmatization, which normalizes a word with the context of vocabulary and morphological analysis of words in text. The lemmatization algorithm analyzes the structure of the word and its context to convert it to a normalized form. A comparison of stemming and lemmatization ultimately comes down to a trade off between speed and accuracy. What’s more, the usage of multilingual PLM allows us to perform sentiment analysis in over 100 languages of the world!

Sentiment Analysis Papers

Stylios et al. (2010), present a method for extracting citizen opinions about governmental decisions from social media, as well as a technique for classifying opinion phrases in terms of their sentiment orientation. Additionally, authors define a metric for quantifying the impact of citizen opinions on governmental decisions, so that the former can be successfully used in subsequent governmental regulations. Kaschesky et al. (2011), a discussion about the advantages of opinion mining over surveys is offered, when dealing with citizenship issues. The authors propose an opinion mining approach that collects and analyzes citizen arguments and concerns.

Even though the writer liked their food, something about their experience turned them off. This review illustrates why an automated sentiment analysis system must consider negators and intensifiers as it assigns sentiment scores. NLP libraries capable of performing sentiment analysis include HuggingFace, SpaCy, Flair, and AllenNLP. In addition, some low-code machine language tools also support sentiment analysis, including PyCaret and Fast.AI. The age of getting meaningful insights from social media data has now arrived with the advance in technology.

Context and Polarity

Therefore, you can use it to judge the accuracy of the algorithms you choose when rating similar texts. Asur and Huberman argue deep understanding of social media communications can aid accurate predictions of the outcome of future events. The example they provide is looking at real-time analytical software using Twitter feeds data for predicting box-office success. Together, topic modeling and sentiment analysis in a multimodal context are recognized as a way of improving human-agent interactions. An example of how this is applied is the area of automatic speech recognition. Sentiment analysis can be done via supervised, semi-supervised, and unsupervised machine learning algorithms.

  • Research from Bain & Company has shown that increasing customer retention rates by as little as 5 percent can increase your profits by anywhere from 25 to 95 percent.
  • And, the third one doesn’t signify whether that customer is happy or not, and hence we can consider this as a neutral statement.
  • The Lettria platform has been specifically developed to handle textual data processing and offers advanced sentiment analysis.
  • Our AI Team tries their best to keep our solution at the state-of-the-art level.

Read more about here.


Hinterlasse einen Kommentar