Investigating Text Shortening Strategy in BERT: Truncation vs Summarization

Conceptos Básicos

Summarization outperforms truncation in text classification tasks, with the best strategy being taking the head of the document.

Resumen

The study compares document truncation and summarization strategies in text classification tasks using IndoSum dataset. Extractive summarization performs better than most truncation methods, with taking the beginning of the document as the top-performing strategy. The research highlights the importance of understanding where key information lies within a document for effective shortening strategies.

1. Investigating Text Shortening Strategy in BERT:
   • Examines document truncation and summarization.
2. Performance Evaluation:
   • Summaries outperform most truncation variations.
   • Extractive summarization is a feasible shortening strategy.
3. Best Strategies:
   • Taking the head of the document yields optimal results.
4. Dataset Exploration:
   • Utilizes IndoSum dataset for news article classification.
5. Preprocessing and Variations:
   • Tests 10 different shortening strategies, including extractive and abstractive summarizations.
6. Text Classification:
   • Fine-tunes DistilBERT model for text classification tasks.
7. Result Analysis:
   • Extractive summarization ranks among top strategies.
8. Conclusion and Recommendation:
   • Recommends considering where important information lies within a document for effective shortening strategies.

Estadísticas

"The best strategy obtained in this study is taking the head of the document."
"The average number of tokens in a document is 346 tokens."
"Filtered IndoSum has around 13 thousand (13K) articles."

Citas

"This study concludes that extractive summaries as an alternative shortening strategy has great potential for a Transformer-based classification model."
"In general, whenever the location of the main idea of the document is unknown, taking the first part of the document seems to be the best assumption."

Ideas clave extraídas de

Investigating Text Shortening Strategy in BERT

by Mirza Alim M... a las arxiv.org 03-20-2024

https://arxiv.org/pdf/2403.12799.pdf

Consultas más profundas

How can other languages benefit from similar text shortening strategies?

Other languages can benefit from similar text shortening strategies by adapting the approach to suit their linguistic characteristics and specific datasets. By implementing extractive summarization techniques, languages with diverse structures and syntaxes can identify key information in a document efficiently. This method allows for the extraction of essential content while maintaining context, which is crucial for tasks like classification or sentiment analysis. Additionally, by exploring different variations of summarization and truncation methods tailored to each language's nuances, researchers can optimize performance in natural language processing tasks across various linguistic contexts.

Does relying on extractive summarization limit creativity or originality in content?

Relying solely on extractive summarization may potentially limit creativity or originality in content due to its nature of selecting existing segments from the source material. Extractive summarization focuses on extracting important sentences verbatim from the input text without generating new phrases or restructuring information creatively. While this method ensures that critical details are preserved, it may overlook unique perspectives or innovative expressions present in the full document. As a result, there is a risk that some nuanced insights or creative elements could be lost when using extractive summarization exclusively.

How can automated abstractive summarization be improved to enhance performance?

Automated abstractive summarization can be enhanced to improve performance through several approaches:

Fine-tuning Models: Continuously fine-tuning pre-trained models on domain-specific data helps capture intricate patterns and generate more coherent summaries.
Enhancing Language Understanding: Improving language understanding capabilities within models enables better comprehension of context and semantics for accurate abstraction.
Incorporating Attention Mechanisms: Implementing attention mechanisms allows models to focus on relevant parts of the input during summary generation, enhancing coherence.
Controlling Summary Length: Regulating summary length prevents excessive compression leading to loss of vital information while ensuring concise yet informative outputs.
Utilizing Diverse Training Data: Training models on diverse datasets aids in capturing varied writing styles and vocabulary usage for robust performance across different texts.

By integrating these strategies into automated abstractive summarization systems, researchers can elevate their effectiveness in producing high-quality summaries that maintain originality and convey essential content accurately.