Notes
Notes - notes.io |
Abstract | Tejbir
Intro. | Tejbir
Background | Tejbir
Approach | Tejbir/Sushil (till preprocessing of data)
Dataset | Sushil/Prajwal
Evaluation | Sushil/Prajwal
Conclusion | All
Team Roles | All
References | Tejbir
Machine Learning Write-up Report:
Approach:
0.) Analyze Data (Tej)
a.) No test labeled data
b.) So ==> 60-20-20 split
c.) frequency analysis
1.) Text Preprocessing (Tej)
a.) Tokenizing
b.) Stop words removal
c.) Stemming
d.) Frequency Filter
e.) Bigrams
f.) Trigrams
g.) Nouns & Name Filter
h.) Parts of Speech
i.) Negation Analysis
j.) cleaning special puncation i.e. #, @, $, &. etc
2.) Feature Extraction (Sushil)
a.) TF-IDF
b.) Data Vectorizing
c.) L1, L2 Normalization (equations image)
3.) Train data on NB to establish baseline measure
Multinomial NB:
- formula by Dan Jufarsky
- alpha parameter scikit
- formula
4.) Train data on Logistic REegresion
- look up papers wikipedia/internet
- Explaination + formulas + Parameters
5.) Train a Linear SVM classier
- LibSVM library
- RPF/Gaussian
- Explaination + formula
- Parameter C and Gamma varied
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