Zero-Shot Multi-Label Classification of Bangla Documents: Large Decoders Vs. Classic Encoders

Fuente: arXiv
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Main Authors: Sarkar, Souvika, Hasan, Md. Najib, Karmaker, Santu
Format: Preprint
Published: 2025
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author Sarkar, Souvika
Hasan, Md. Najib
Karmaker, Santu
author_facet Sarkar, Souvika
Hasan, Md. Najib
Karmaker, Santu
contents Bangla, a language spoken by over 300 million native speakers and ranked as the sixth most spoken language worldwide, presents unique challenges in natural language processing (NLP) due to its complex morphological characteristics and limited resources. While recent Large Decoder Based models (LLMs), such as GPT, LLaMA, and DeepSeek, have demonstrated excellent performance across many NLP tasks, their effectiveness in Bangla remains largely unexplored. In this paper, we establish the first benchmark comparing decoder-based LLMs with classic encoder-based models for Zero-Shot Multi-Label Classification (Zero-Shot-MLC) task in Bangla. Our evaluation of 32 state-of-the-art models reveals that, existing so-called powerful encoders and decoders still struggle to achieve high accuracy on the Bangla Zero-Shot-MLC task, suggesting a need for more research and resources for Bangla NLP.
format Preprint
id arxiv_https___arxiv_org_abs_2503_02993
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Zero-Shot Multi-Label Classification of Bangla Documents: Large Decoders Vs. Classic Encoders
Sarkar, Souvika
Hasan, Md. Najib
Karmaker, Santu
Computation and Language
Information Retrieval
Bangla, a language spoken by over 300 million native speakers and ranked as the sixth most spoken language worldwide, presents unique challenges in natural language processing (NLP) due to its complex morphological characteristics and limited resources. While recent Large Decoder Based models (LLMs), such as GPT, LLaMA, and DeepSeek, have demonstrated excellent performance across many NLP tasks, their effectiveness in Bangla remains largely unexplored. In this paper, we establish the first benchmark comparing decoder-based LLMs with classic encoder-based models for Zero-Shot Multi-Label Classification (Zero-Shot-MLC) task in Bangla. Our evaluation of 32 state-of-the-art models reveals that, existing so-called powerful encoders and decoders still struggle to achieve high accuracy on the Bangla Zero-Shot-MLC task, suggesting a need for more research and resources for Bangla NLP.
title Zero-Shot Multi-Label Classification of Bangla Documents: Large Decoders Vs. Classic Encoders
topic Computation and Language
Information Retrieval
url https://arxiv.org/abs/2503.02993