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README.md
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---
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https://cdn-uploads.huggingface.co/production/uploads/685d281ebd8c51629778c12c/nWsXyYbkwEvBfqh-81JbD.png
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---
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# Inference Lab
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**Applied AI Engineering & Research — Multan, Pakistan**
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Inference Lab is an applied AI research and engineering organization. We develop production-grade AI systems, construct high-quality datasets for underrepresented languages, and publish reproducible research across low-resource NLP, speech intelligence, and AI deployment. Our work is end-to-end: from raw data collection and annotation through model training, evaluation, and deployment as usable software.
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---
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## Research
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### Low-Resource NLP
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**Data-Centric Roman Urdu NLP: High-Quality Dataset Curation, Privacy-Preserving Embeddings, and State-of-the-Art Model Benchmarking**
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A comprehensive data-centric study addressing the critical gaps in Roman Urdu NLP infrastructure. Covers rigorous dataset curation methodology, privacy-preserving embedding strategies, and systematic benchmarking of state-of-the-art models on Roman Urdu classification tasks. Establishes reproducible baselines for future work in this domain.
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→ [Preprint](https://doi.org/10.5281/zenodo.18080524)
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---
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**RUEmoCorp: A Large-Scale Roman Urdu Emotion Corpus with Cross-Institute Annotation Validation and State-of-the-Art Emotion Classification**
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Construction and release of the largest Roman Urdu emotion recognition corpus to date. Introduces a cross-institute annotation validation framework with structured annotator roles, multi-round calibration, and Inter-Annotator Agreement (IAA) measurement. Accompanies the current state-of-the-art emotion classifier for Roman Urdu.
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→ *Under Progress*
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---
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### Speech AI
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**Modeling Vocal Fatigue as Embedding-Space Deviation Using Contrastively Trained ECAPA-TDNNs**
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A novel approach to vocal fatigue detection that frames the problem as deviation measurement in speaker embedding space rather than direct classification. A contrastively trained ECAPA-TDNN encoder is used to capture speaker-specific vocal baselines; fatigue is quantified as geometric distance from the healthy reference embedding. Introduces the ECAPA-TDNN-VHE architecture, achieving 2.5× performance improvement over the standard ECAPA-TDNN baseline.
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→ [Preprint](https://doi.org/10.5281/zenodo.18366305)
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---
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**Continuous Vocal Load Monitoring in Professional Voice Users: Development and Occupational Validation of an Automated Assessment System**
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A complete occupational health monitoring system for professional voice users — teachers, call center operators, broadcasters, and clinical staff. Addresses the gap between laboratory vocal fatigue research and deployable real-world monitoring tools. Validated against occupational use conditions with a focus on practical deployment in professional environments.
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→ *Under Review — Journal of Voice*
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---
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## Datasets
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**RUEmoCorp** — Largest curated Roman Urdu Emotion Corpus
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Multi-class emotion recognition corpus for Roman Urdu, constructed with structured annotation pipelines, cross-institute validation, and rigorous quality control. Supports research in low-resource affective computing and multilingual NLP.
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[HuggingFace](#) · [Harvard Dataverse](https://doi.org/10.7910/DVN/BPWHOZ)
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---
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**Roman Urdu Sentiment Corpus** — Largest curated Roman Urdu Sentiment Corpus
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Large-scale sentiment corpus for Roman Urdu, released with full documentation of collection methodology, annotation schema, and inter-annotator agreement statistics. Serves as the benchmark dataset for Roman Urdu sentiment classification.
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[HuggingFace](https://huggingface.co/datasets/Khubaib01/RomanUrdu-NLP-Sentiment-Corpus) · [Harvard Dataverse](https://doi.org/10.7910/DVN/TMXDCL)
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---
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## Models
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**ECAPA-TDNN-VHE** — Vocal Health Encoder
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Custom ECAPA-TDNN architecture trained contrastively for vocal health assessment. Encodes speaker vocal characteristics into a health-sensitive embedding space. Achieves 2.5× performance improvement over the standard ECAPA-TDNN baseline on vocal fatigue detection benchmarks.
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[HuggingFace](https://huggingface.co/Khubaib01/ECAPA-TDNN-VHE)
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---
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**Roman Urdu Emotion Classifier** — Current State of the Art
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XLM-RoBERTa fine-tuned on RUEmoCorp for multi-class Roman Urdu emotion recognition. Macro F1: 0.9896. The highest-performing publicly available model for this task.
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[HuggingFace](https://huggingface.co/Khubaib01/roman-urdu-emotion-xlmr-v2)
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**Roman Urdu Sentiment Classifier** — Current State of the Art
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XLM-RoBERTa fine-tuned on the Roman Urdu Sentiment Corpus. The highest-performing publicly available model for Roman Urdu sentiment classification.
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[HuggingFace](https://huggingface.co/Khubaib01/roman-urdu-sentiment-xlmr)
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---
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## Software
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**VoiceMonitor**
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Python library for continuous vocal load monitoring. Designed for integration into occupational health workflows, real-time audio pipelines, and professional voice user monitoring systems.
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**Auralis VFS**
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Vocal fatigue scoring library. Provides a programmable interface for fatigue quantification using the ECAPA-TDNN-VHE encoder. Designed for clinical and occupational deployment scenarios.
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**VocalID**
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Voice biometrics library for speaker verification and identification. Built for security-sensitive applications requiring speaker authentication from raw audio.
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**faker-pk**
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Localized synthetic data generation library for Pakistan. Generates realistic dummy data — names, addresses, CNICs, phone numbers, and institutional identifiers — for database seeding, system testing, and privacy-safe development workflows.
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---
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## Standards
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Every release from Inference Lab adheres to the following:
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- Reproducible training and evaluation pipelines with public code
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- Rigorous evaluation reporting — macro F1, per-class metrics, confidence intervals where applicable
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- Documented data collection, annotation methodology, and IAA statistics
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- Deployable inference code alongside model weights
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- Honest documentation of limitations and failure cases
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- Archival publication on Harvard Dataverse with permanent DOIs for all datasets
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---
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## Contact
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**[Muhammad Khubaib Ahmad](https://www.linkedin.com/in/muhammad-khubaib-ahmad-)** — Founder, Lead Researcher & Engineer
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Gmail: inferencelab.ai@gmail.com
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[GitHub](https://github.com/Khubaib01) · Multan, Punjab, Pakistan
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