Sentiment Analysis for Customer Feedback
Example Dataset:
Overview:
In this research project, students will apply advanced NLP techniques and statistical methods to analyze customer feedback data. The goal is to develop a sentiment analysis model that can classify customer reviews into positive, negative, or neutral sentiments, providing valuable insights for businesses.
Instructions:
- Data Collection: Gather a dataset of customer reviews from a specific industry, such as hospitality or e-commerce. Ensure the dataset includes a variety of sentiments.
- Preprocessing: Clean and preprocess the text data by removing stop words, punctuation, and performing tokenization and lemmatization.
- Feature Extraction: Use statistical methods such as TF-IDF (Term Frequency-Inverse Document Frequency) or word embeddings to convert text data into numerical features.
- Model Development: Implement a sentiment analysis model using machine learning algorithms such as Naive Bayes, Support Vector Machines (SVM), or deep learning models like Recurrent Neural Networks (RNNs) or Transformers.
- Evaluation: Evaluate the model’s performance using metrics such as accuracy, precision, recall, and F1-score. Compare different models to determine the most effective approach.
- Interpretation and Reporting: Interpret the results and discuss the implications for business decision-making. Document the entire process, findings, and insights according to the Research Project Rubric.
**** Make note that you will create a presentation on your research for Case Study #2.
Submission Requirements:
A formal research paper (PDF or DOCX) that includes the following sections:
- Abstract: Summary of the research objectives, methodology, and findings.
- Introduction: Background, relevance of sentiment analysis in the selected industry, and research objectives.
- Data Collection:
- Source and description of dataset.
- Industry focus (e.g., hospitality, e-commerce).
- Summary statistics of the dataset (e.g., number of reviews, distribution of sentiments).
- Data Preprocessing:
- Description of cleaning steps (e.g., stop word removal, lemmatization).
- Justification for preprocessing techniques used.
- Feature Extraction:
- Method used (TF-IDF, Word2Vec, BERT embeddings, etc.).
- Visualization or description of feature space (optional).
- Model Development:
- Algorithms used (e.g., Naive Bayes, SVM, RNN, Transformer).
- Rationale for model selection.
- Hyperparameters and training strategy.
- Model Evaluation:
- Performance metrics (Accuracy, Precision, Recall, F1-score).
- Comparison of different models.
- Confusion matrix and/or ROC curves (if applicable).
- Interpretation and Discussion:
- Business insights derived from the results.
- Limitations and potential improvements.
- Conclusion:
- Summary of key findings and implications for business decision-making.
- References: Use APA or IEEE citation style.
- Appendices (if applicable): Additional figures, tables, or code snippets.
2. Codebase (ZIP or GitHub link)
- Well-documented Python code or Jupyter Notebook including:
- Data loading and preprocessing scripts.
- Feature extraction modules.
- Model training and evaluation scripts.
- Inline comments and markdown explanations.
- ReadMe file explaining how to run the project and reproduce results.
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