How to Run NLP Tools with CogComp-NLPy in Python

Mar 24, 2024 | Data Science

Welcome to your guide on how to effortlessly implement Natural Language Processing tools like Part-of-Speech tagging, Named Entity Recognition, and more with the CogComp-NLPy library in Python. Let’s embark on this exciting journey!

Installation

Before we dive into the code, let’s ensure you have everything ready to go. Follow these straightforward installation steps:

  1. Make sure you have pip on your system.
  2. Install Cython by running:
    pip install cython
  3. Install CogComp-NLPy by executing:
    pip install ccg_nlpy
  4. Enjoy your newly set-up NLP tools!

For more details, check out the PyPI website for the project page.

Getting Started

Once the installation is complete, let’s see how to use the library. Here’s a simple way to run the system:


from ccg_nlpy import remote_pipeline

pipeline = remote_pipeline.RemotePipeline()
doc = pipeline.doc("Hello, how are you? I am doing fine.")
print(doc.get_lemma)  # will produce: (hello Hello) (, ,) (how how) (be are) (you you) (. .) (I I) (be am) (do doing) (fine fine)
print(doc.get_pos)     # will produce: (UH Hello) (, ,) (WRB how) (VBP are) (PRP you) (. .) (PRP I) (VBP am) (VBG doing) (JJ fine)

This code snippet initializes the remote NLP pipeline and analyzes the given text, fetching the lemma and Part-of-Speech tags.

Understanding the Code Like a Restaurant Visit

Think of the NLP pipeline as your favorite restaurant. When you place an order (the input text), the waiter (the function call) takes it to the chef (the pipeline), who then prepares your meal (the analysis results).

  • Your order (text) is passed to the waiter via the pipeline.doc() method.
  • The chef then creates the meals (lemma and POS tags). You can ask for specific dishes (results) using doc.get_lemma and doc.get_pos.

Remote and Local Pipelines

CogComp-NLPy provides two modes: remote and local pipelines.

Remote Pipeline

In the remote setting, you send requests off to a server and save your local machine’s memory. However, be mindful of the query limit (currently 100 queries a day). To set up your own remote server:

  1. Clone the CogComp-NLP Java project.
  2. Start the server by running scripts from the command line.

Local Pipeline

Your second option is to run everything locally, which allows you to work with pre-tokenized text. Just remember that running it locally demands more memory.


python -m ccg_nlpy download  # to download model files
from ccg_nlpy import local_pipeline

pipeline = local_pipeline.LocalPipeline()
document = [["Hi", "!"], ["How", "are", "you", "?"]]
doc = pipeline.doc(document, pretokenized=True)

Troubleshooting Common Issues

Sometimes, things might not work as expected. Here are a few troubleshooting ideas:

  • If using the local pipeline, ensure the JAVA_HOME variable is set correctly.
  • Running Java version 8? You may need to install it via this guideline.
  • Encountering errors while processing big documents? Always check for outputs before proceeding with any further operations.

For more insights, updates, or to collaborate on AI development projects, stay connected with fxis.ai.

Conclusion

By following this guide, you can smoothly incorporate advanced NLP tools into your projects and enhance your document analysis capabilities. At fxis.ai, we believe that such advancements are crucial for the future of AI, as they enable more comprehensive and effective solutions. Our team is continually exploring new methodologies to push the envelope in artificial intelligence, ensuring that our clients benefit from the latest technological innovations.

Stay Informed with the Newest F(x) Insights and Blogs

Tech News and Blog Highlights, Straight to Your Inbox