Improving Text Summarization Models for Medical and General Sectors

The Importance of AI in Text Summarization

Text summarization plays a crucial role in handling the massive amount of digital information available today. This is especially true in fields like healthcare, where accurate and concise summaries are essential. Natural Language Processing (NLP) research has been focused on developing effective text summarization models.

One promising approach is the use of neural networks and deep learning techniques, specifically sequence-to-sequence models with encoder-decoder architectures. Compared to traditional methods, these models generate more natural and contextually appropriate summaries. However, preserving contextual and relational features, as well as precision, remains a challenge.

Researchers have utilized ChatGPT to summarize radiological reports and have improved it through interaction using a novel iterative optimization method. This method incorporates similarity search algorithms to create a dynamic prompt that includes semantically and clinically comparable reports. By training ChatGPT with these parallel reports, it gains a better understanding of text descriptions and summaries for similar imaging manifestations.

Key Contributions

1. Similarity Search: By using semantic search, a Language Model (LLM) can learn in-context with sparse data. A dynamic prompt is created by identifying comparable cases in the report corpus.

2. Optimization via Iteration: The iterative prompt allows ChatGPT to refine its answers. This approach is crucial in high-stakes applications like radiology report summaries and includes a response review procedure for quality checks.

3. Domain-Specific Information: A novel approach to tweaking LLMs is introduced, leveraging domain-specific information for quick and effective model development.


1. Variable Prompt: Dynamic samples are created using semantic search to find examples from the report corpus that are similar to the input report. The final query combines a pre-defined inquiry with the “Findings” section of the test report.

2. Optimization via Iteration: Through an iterative optimization technique, ChatGPT refines its responses based on an iterative prompt. Quality checks are performed to ensure the accuracy of the replies.

The feasibility of using Large Language Models (LLMs) for summarizing radiological reports is explored by enhancing input prompts and using an iterative method. Compared to approaches that rely on massive amounts of pre-training data, this strategy proves to be superior. It also serves as a foundation for building domain-specific language models in artificial general intelligence.

To improve the model’s output responses, fine-grained assessment measures are employed to examine the obtained outcomes. Future optimization will include incorporating domain-specific data from public and local sources, addressing data privacy and safety concerns, and utilizing Knowledge Graph for prompt design. Human specialists, such as radiologists, will also be involved in the iterative process to provide objective feedback and enhance the accuracy of the results.

By combining the expertise of human specialists with AI in developing LLMs, more precise results can be achieved. The continuous advancements in AI technology will undoubtedly make our lives easier by effectively summarizing vast amounts of textual information.

[Read the paper here.]

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