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  # Identifier-Renaming
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- Generating higher quality identifier names by using context and following conventions <br>
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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  # Identifier-Renaming
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+
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+ <!-- Provide a quick summary of what the model is/does. -->
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+ Generating higher quality variable names for code by renaming masked variable names.
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+ ## Model Details
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+
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+ ### Model Description
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+
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+ <!-- Provide a longer summary of what this model is. -->
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+ - **Developed by:** SMART Lab, Dalhousie University
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+ - **Funded by:** [More Information Needed]
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+ - **Model type:** Masked Language model
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+ - **Language(s) (NLP):** Coded in Python to handle Java code
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+ - **Finetuned from model:** GraphCodeBERT
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+
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+ ### Model Sources [optional]
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+ <!-- Provide the basic links for the model. -->
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+ - **Repository:** https://github.com/SMART-Dal/Identifier-Renaming
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+ ## Uses
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+ <!-- Address questions around how the model is intended to be used, including the foreseeable users of the model and those affected by the model. -->
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+ Input Java code snippets with all instances of a particular variable name replaced by "[MASK]"<br>
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+ Input the number of tokens desired in the variable name (how long should it be). Else, input "0" to get a random number of tokens sampled from
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+ training data distribution<br>
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+ The code snippets must ideally be entire classes for best results. A prediction for the masked variable name is presented as output.
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+ ### Out-of-Scope Use
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+ <!-- This section addresses misuse, malicious use, and uses that the model will not work well for. -->
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+ This non-fine-tuned version of the model is designed for generic code completion tasks. The fine-tuned model is designed to focus solely on identifier names.<br>
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+ Ensure all instances of a particular variable name are masked.
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+ [More Information Needed]
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+ ## Bias, Risks, and Limitations
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+
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+ <!-- This section is meant to convey both technical and sociotechnical limitations. -->
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+ Training is only done for a relatively small dataset and few epochs, and thus, the model might be under-trained. <br>
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+ Even with the correct output, the syntax of the model can be occasionally dubious.<br>
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+ Model is not perfect and identifier renamings must be reviewed till performance in test settings is not evaluated.
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+ [More Information Needed]
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+ ### Recommendations
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+ <!-- This section is meant to convey recommendations with respect to the bias, risk, and technical limitations. -->
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+ Use model as described and verify outputs before using them.
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+ ## How to Get Started with the Model
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+ Clone the repository and load model state dict using 'model_26_2'
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+ ### Training Details
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+ <!-- This should link to a Dataset Card, perhaps with a short stub of information on what the training data is all about as well as documentation related to data pre-processing or additional filtering. -->
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+ Trained on a subset of a dataset of 1000 classes with 612 lines of code on average for 3 epochs and a Learning Rate of 2e-5.
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+ [More Information Needed]
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+ ## Evaluation
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+ 227 Java classes used for evaluation
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+ <!-- This section describes the evaluation protocols and provides the results. -->
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+ Perplexty of Base Model: 37580
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+ Perplexity of Fine-tuned Model: 23
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+ [More Information Needed]
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+ #### Factors
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+ <!-- These are the things the evaluation is disaggregating by, e.g., subpopulations or domains. -->
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+ [More Information Needed]
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+ #### Metrics
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+ <!-- These are the evaluation metrics being used, ideally with a description of why. -->
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+ Perplexity is used to evaluate the performance of the model. It judges how surprising it is for a model to predict the given text.
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+ <!-- Relevant interpretability work for the model goes here -->
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+ [More Information Needed]
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