you are going to read some text files and classify them according to their labels. The Reuters corpus is one of the most famous datasets for text categorization tasks. We provide a subset of this dataset on Brightspace. You apply these files to make your classifier. There is more information about this dataset available on [login to view URL]
1- Download zip file and extract it. Consider this data is a subset of full Reuters corpus to make it possible for you to process without the need of a powerful server.
2- Each file contains some XML files. Explore XML files and find a list of all fields available there.
3- Write a function extract a Pandas's Dataframe containing: (1) headline, (2) text, (3) bip:topics,(4)
[login to view URL], (5) itemid, (6) XMLfilename
4- Write a python function to find all the possible values for bip:topics. Consider that each news can
belong to more than one topic.
5- Write a function to prepare your text data by methods such as removing stop words. You are allowed
to use the NLTK library.
6- Extract features from the text using any approach you like. Write a function that input the Dataframe
in step 3 and generates a new Dataframe of your features and labels.
7- Divide your data into a training and test set. You can use any method such as cross-validation. You
need to provide a reason why you decide so here.
8- Write a function to get the Dataframe of step 6 and a set of parameters to return a trained classifier
to classify all labels that you get in step 4.
9- Write a function to evaluate the quality of your classifier (like accuracy, F-score, AUC, ...). Explain why
you think this function is the best choice
9- Generate five different classifiers (Random Forest, Decision Tree, Linear Regression, Neural Network, and SVM) using step 8. Tune them up for the best parameters. Find the best classifier. Explain why.
17 freelanceria on tarjonnut keskimäärin 177$ tähän työhön
Hi, I have worked with NLP for sentiment analysis. I used Pythonfor the development. I would like to work on your project. Let me know if you want to discuss further. Regards, Monir
I am a professional data scientist from Scotland I have a vast amount of experience in data mining I am more than happy to go ahead and discuss your project with you please drop me a text here.
Hi Sir, Having Expertise in nature language processing, using python. also worked on different classification algorithm from machine learning and Deep learning. let's connect for further discussion. Thanks