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Alexander Johnson

4 accepted papers

2025

NovAScore: A New Automated Metric for Evaluating Document Level Novelty

COLING 2025main

The rapid expansion of online content has intensified the issue of information redundancy, underscoring the need for solutions that can identify genuinely new information. Despite this challenge, the research community has seen a decline in focus on novelty detection, particularly with the rise of l…

Cited by 1SourcePDFScholar
2024

CORAAL QA: A Dataset and Framework for Open Domain Spontaneous Speech Question Answering from Long Audio Files

ICASSP 2024accepted

This paper presents a novel dataset (CORAAL QA) and framework for audio question-answering from long audio recordings containing spontaneous speech. The dataset introduced here provides sets of questions that can be factually answered from short spans of a long audio files (typically 30min to 1hr) f…

Cited by 6SourceScholar
2023

Leveraging Multiple Sources in Automatic African American English Dialect Detection for Adults and Children

ICASSP 2023accepted

This paper <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1</sup> presents a novel system which utilizes acoustic, phonological, morphosyntactic, and prosodic information for binary automatic dialect detection of African American English. We train this…

Cited by 2SourceScholar
2022

LPC Augment: an LPC-based ASR Data Augmentation Algorithm for Low and Zero-Resource Children's Dialects

ICASSP 2022accepted

This paper proposes a novel linear prediction coding-based data augmentation method for children’s low and zero resource dialect ASR. The data augmentation procedure consists of perturbing the formant peaks of the LPC spectrum during LPC analysis and reconstruction. The method is evaluated on two no…

Cited by 0SourceScholar