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Agha Ali Raza

5 accepted papers

2025

To Label or Not to Label: Hybrid Active Learning for Neural Machine Translation

COLING 2025main

Active learning (AL) techniques reduce labeling costs for training neural machine translation (NMT) models by selecting smaller representative subsets from unlabeled data for annotation. Diversity sampling techniques select heterogeneous instances, while uncertainty sampling methods select instances…

2025

WER We Stand: Benchmarking Urdu ASR Models

COLING 2025main

This paper presents a comprehensive evaluation of Urdu Automatic Speech Recognition (ASR) models. We analyze the performance of three ASR model families: Whisper, MMS, and Seamless-M4T using Word Error Rate (WER), along with a detailed examination of the most frequent wrong words and error types inc…

2024

Deepfake Defense: Constructing and Evaluating a Specialized Urdu Deepfake Audio Dataset

ACL 2024findings

Deepfakes, particularly in the auditory domain, have become a significant threat, necessitating the development of robust countermeasures. This paper addresses the escalating challenges posed by deepfake attacks on Automatic Speaker Verification (ASV) systems. We present a novel Urdu deepfake audio…