The ability to extract significant insights and efficiently summarize enormous volumes of textual data is critical in today’s digital world. Machine Learning techniques, combined with the flexibility and power of the Python programming language, provide a viable answer to this problem. ML algorithms can be used to create intelligent systems that can analyze and reduce large materials into brief summaries. This will save time and improve comprehension as well.
This article delves into the fascinating field of text summarizing and provides an overview of the essential concepts and strategies to construct accurate summarization models.
When it comes to summarizing text using machine learning and Python, various Python libraries and machine learning models are available. Each library and model have a different code and accuracy ratio because of how it has been trained. So, for this guide, we’ll use the assistance of an advanced Python framework named Transformers and Facebook’s machine-learning model named BART Large CNN.
But as we’ve specified earlier, various Python libraries and machine learning models are available to automate the task of text summarization.
So, why have we chosen the Transformers and BART Large CNN? Let’s explore the answer to the “why” part before getting to the steps of summarizing text using machine learning and Python.
Text summarization is an example of an advanced use case of Natural Language Processing (NLP). And advanced Python frameworks like Transformers have made it easier to deal with the advanced use cases of NLP. So, that’s the primary reason for choosing the Transformers Python framework here. However, regarding the selection of BART Large CNN is concerned, this machine-learning model has given exceptional results for text summarizing when used with the combination of Transformers. So, that’s the reason for choosing the BART Large CNN machine learning model in this guide.
The BART Large CNN machine learning model is easier to implement for smaller datasets and challenging to handle for larger problems and datasets of bigger sizes. So, let’s see the best way to use this machine learning model along with the selected Python framework (Transformers).
Note: We have listed the following steps assuming you’ve already installed Python in your system. But if you don’t know whether Python is installed in your system or not, we recommend checking its installation status first in the following way:
python --version
# Python 3.11.3
pip install transformers
from transformers import pipeline, BartForConditionalGeneration, BartTokenizer
Note: If you haven’t installed the necessary packages, the above line of code will give an error message upon executing. So, run following command before trying to import the classes from the installed library.
pip install transformers torch numpy pandas
from_pretrained()
method. And that’s how the complete command for this step will look like:# Load the pre-trained BART model and tokenizer
model = BartForConditionalGeneration.from_pretrained(‘facebook/bart-large-cnn’)
tokenizer = BartTokenizer.from_pretrained(‘facebook/bart-large-cnn’)
So, the following line represents the code for inputting a complete paragraph in Python:
input_text = “The field of machine learning has gained a lot of attention in recent years. It is a type of artificial intelligence that allows computers to learn from data without being explicitly programmed. Machine learning algorithms can be trained on large datasets to identify patterns and make predictions or decisions. There are three main types of machine learning: supervised learning, unsupervised learning, and reinforcement learning. Each type has its own unique characteristics and applications. Some popular machine learning algorithms include decision trees, random forests, support vector machines, and neural networks. With the increasing availability of data and computing power, the field of machine learning is expected to continue growing in the coming years.”
inputs = tokenizer(input_text, max_length=1024, truncation=True, return_tensors='pt')
Note: In the above step, we’ve specified the max_length
and truncation
parameters. These parameters will ensure that if the text’s length exceeds the specified limit, it will automatically be truncated.
generate()
method of the BART Large CNN model. So, the following represents the code for this step:# Generate the summary
summary_ids = model.generate(inputs[‘input_ids’], num_beams=4, max_length=100, early_stopping=True)
decode()
tokenizer method. So, the following line represents the complete code for this step:# Decode the summary
summary = tokenizer.decode(summary_ids[0], skip_special_tokens=True)
Note: As you can see, we’ve set the skip_special_tokens
parameter to True
. This instruction will skip or remove any unique tokens added by the tokenizer during encoding.
print(summary)
Thus, once you’ve performed all the above steps, Python will generate the following output:
As you can see, the generated summary looks accurate and cover all the important key points of the input text. So that’s how you can easily create a text summarizer tool using Python and machine learning. The tool will automatically summarize documents by keeping all the important points in it.
According to the output of the above example, it is clear that the BART Large CNN model is pretty accurate when it comes to text summarization, and the Transformers is among the most accurate Python text summarization libraries. But there are some limitations associated with the BART Large CNN model. So, let’s check out those limitations because this way, you will have a better idea about whether using this machine learning model is an appropriate choice for you or not.
Summarizing the text is a handy way of quickly extracting the text. But this technique will only prove helpful if you know the right way to do it. So, if you don’t know how to summarize the text manually, you can use machine learning models and Python libraries to perform accurate text summarizations.
As the above blog post indicates, Python libraries and machine learning models can quickly and accurately generate summaries while preserving the original context. So, you can use the assistance of modern technology to generate text summaries and increase productivity at your work.