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Research Index

Published research in voice and AI/ML

Explore research breakthroughs at the intersection of voice technology, AI, and machine learning. From reducing transcription errors in noisy environments to improving spoof detection against synthetic voices, we offer practical solutions to complex challenges in enterprise contact centers. 

Questions? Contact us at research@freeclimb.com.

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LLM Selection: Improving ASR Transcript Quality via Zero-Shot Prompting

Grace LeFevre

Jordan Hosier

Yu Zhou

Vijay K. Gurbani

IEEE SoutheastCon 2025
(
2025
)
Large Language Models (LLMs)
Sparse Autoencoder insights on voice embeddings

Dan Pluth

Yu Zhou

Vijay K. Gurbani

IEEE AIxMM 2025
(
2025
)
Speech Recognition
Echoes unveiled: Identifying synthetic voices

Dan Pluth

Jordan Hosier

Yu Zhou

Vijay K. Gurbani

IEEE PerCom 2025
(
2025
)
Natural Language Processing
Efficient and verifiable responses using Retrieval Augmented Generation (RAG)

Henry Liang

Yu Zhou

Vijay K. Gurbani

AI-ML Systems Conference
(
2024
)
Large Language Models (LLMs)
How Susceptible are LLMs to Logical Fallacies?

Amirreza Payandeh

Dan Pluth

Jordan Hosier

Xuesu Xiao

Vijay K. Gurbani

LREC-COLING 2024
(
2024
)
Large Language Models (LLMs)
Evaluating feature importance for speaker separation models

Deeksha Prabhaker

Jose Ignacio Pozuelo

Dan Pluth

Ayush Panda

Vijay K. Gurbani

IEEE SoutheastCon 2024
(
2024
)
Speech Processing
Digits micro-model for accurate and secure transactions

Chirag Chhablani

Nikhita Sharma

Jordan Hosier

Vijay K. Gurbani

AAAI 2024
(
2024
)
Machine Learning
Text Summarization for Call Center Transcripts

Ishrat Ahmed

Yu Zhou

Nikhita Sharma

Jordan Hosier

Intelligent Systems and Applications (IntelliSys 2023)
(
2023
)
Generative AI
‍A low latency technique for speaker detection from a large negative list

Yu Zhou

Vijay K. Gurbani

B. Chandra Mouli

ICNLSP 2022: 202-211
(
2022
)
Speech Recognition
‍Improved Named Entity Recognition for Noisy Call Center Transcripts

Jordan Hosier

Sam Davidson

Yu Zhou

Vijay K. Gurbani

W-NUT 2021: 361-370
(
2021
)
Natural Language Processing
‍Lightweight domain adaptation: A filtering pipeline to improve accuracy of an Automatic Speech Recognition (ASR) engine

Jordan Hosier

Yu Zhou

Nikita Sharma

Vijay K. Gurbani

ACAI 2021: 95:1-95:9
(
2021
)
Natural Language Processing
‍Project Vāc: Can a Text-to-Speech Engine Generate Human Sentiments?

Shivam Kulkarni

Luis Barbado

Jordan Hosier

Yu Zhou

Siddharth Rajagopalan

SpeD 2021: 103-108
(
2021
)
Speech Processing
‍Semantic Search Pipeline: From Query Expansion to Concept Forging

Elizabeth Soper

Jordan Hosier

Dustin Bales

Vijay K. Gurbani

ICDE 2021: 2309-2314
(
2021
)
Search
‍A systematic study of open source and commercial text-to-speech (TTS) engines

Jordan Hosier

Jordan Kalfen

Nikita Sharma

Vijay K. Gurbani

TDS 2020: 312-320
(
2020
)
Text-to-Speech
‍Disambiguation and Error Resolution in Call Transcripts

Jordan Hosier

Vijay K. Gurbani

Neil Milstead

IEEE BigData 2019: 4602-4607
(
2019
)
Speech-to-Text
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