Advancing Conversational AI in Healthcare

At Hana, we're pioneering research into how conversational AI can transform patient engagement and care delivery.

The Adaptive Engagement Engine

Our proprietary multi-model intelligence system translates research into practice by continuously monitoring conversations, analyzing vocal biomarkers, and adapting engagement in real time.

Core Capabilities

Voice analysis + NLP + interaction models, synchronized in real time
Adaptive engagement: loop that continuously refines patient baselines
Federated learning architecture for privacy-preserving insight
Clinically aligned insights, generated automatically and at scale
Patient-grading framework: designed to set a new standard in care engagement

Publications

Discover the research and clinical evidence foundational to our products

Voice in Parkinson's disease: a machine-learning study

Machine learning models detect Parkinson's-related voice changes even in early stages. Using 115 patients and 108 controls, algorithms differentiated early vs. mid-advanced PD and quantified therapy effects. L-dopa improved but did not fully restore vocal quality. Demonstrates how non-invasive voice monitoring allows continuous tracking and personalized care for patients.

Frontiers

Artificial-intelligence-based voice assessment of patients with Parkinson's disease off and on treatment: machine vs. deep-learning comparison

Compared traditional ML (k-NN, SVM, Naive Bayes) and deep learning (CNN) approaches for PD voice assessment. Both achieved comparable accuracy, with CNN slightly ahead, across vocal parameters including jitter, shimmer, and harmonic-to-noise ratio. AI-powered voice monitoring enables remote feedback loops between patients and clinicians, enhancing engagement.

Sensors

Voice biomarkers for detecting depression

Acoustic markers (pitch variability, tempo, pauses) correlate with depression severity. CNN and LSTM achieved up to 90% accuracy. Enables continuous mental health monitoring through voice AI.

IEEE

Conversational agents in healthcare: scoping review

Across 17 studies, voice-enabled agents improved adherence and self-management in chronic conditions. Noted design gaps: patient trust and engagement.

JAMIA

Voice biomarkers predict hospital readmission in heart failure

ML models trained on HF patients achieved AUC 0.80 for readmission prediction. Voice AI monitoring supports proactive outreach and early intervention.

Yonsei

Voice-based conversational agents for older adults

Virtual health counselors maintained weekly interaction for 6 weeks, improving adherence and mood. Shows how medical voice agents enable patient engagement among elderly users.

JMIR

AI and vocal biomarkers of cognitive decline

Recurrent neural networks identified mild cognitive impairment with >80% accuracy. Voice as an early screening tool for neurodegenerative diseases.

IEEE

Patient engagement through voice-enabled virtual assistants

Meta-based chronic disease evidence-based medication adherence by 19%. Validates voice AI as a home-based adherence enabler.

JMIR

Detecting anxiety via voice and speech patterns

CNN-RNN hybrid achieved >85% accuracy in identifying anxiety states. Voice AI can flag distress for adaptive support.

Sensors

The promise of voice in healthcare: ambient clinical intelligence and patient experience

Reviews how voice AI streamlines documentation and boosts near-time empathy signals. Voice as the core engagement tool, unifying patients and providers.

NPJ