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Leibny Paola García-Perera

4 accepted papers

2025

Constructing Datasets From Public Police Body Camera Footage

ICASSP 2025accepted

The enormous potential of body-worn cameras to improve accountability in policing remains largely unrealized due to large volumes of unreviewed footage. Transcription and diarization tools could aid in reviewing footage, but lack of public data hinders their development. We develop a pipeline to con…

Cited by 0SourceScholar
2025

HLTCOE Submission to the VoicePrivacy Attacker Challenge

ICASSP 2025accepted

We describe our submission to the 2024 VoicePrivacy Attacker Challenge. We propose three main categories of methods to improve ASV performance against anonymized speech: improvements to the underlying classifier, alternative distance metrics when computing ASV scores, and kNN-VC normalization. By si…

Cited by 0SourceScholar
2023

Building Keyword Search System from End-To-End Asr Systems

ICASSP 2023accepted

Keyword search (KWS) systems are commonly built on top of existing automatic speech recognition (ASR) systems. However, end-to-end (E2E) ASR models are not naturally equipped with word-level timing information or confidence. Existing methods for re-purposing E2E ASR systems for KWS are largely heuri…

Cited by 0SourceScholar
2020

Overlap-Aware Diarization: Resegmentation Using Neural End-to-End Overlapped Speech Detection

ICASSP 2020accepted

We address the problem of effectively handling overlapping speech in a diarization system. First, we detail a neural Long Short-Term Memory- based architecture for overlap detection. Secondly, detected overlap regions are exploited in conjunction with a frame-level speaker posterior matrix to make t…

Cited by 0SourceScholar