Latent Feature Mining for Predictive Model Enhancement with Large Language Models

• URL: http://arxiv.org/abs/2410.04347v1
• Date: Sun, 6 Oct 2024 03:51:32 GMT
• Title: Latent Feature Mining for Predictive Model Enhancement with Large Language Models
• Authors: Bingxuan Li, Pengyi Shi, Amy Ward,
• Abstract summary: We introduce an effective approach to formulate latent feature mining as text-to-text propositional logical reasoning. We propose FLAME, a framework that leverages large language models (LLMs) to augment observed features with latent features. We validate our framework with two case studies: the criminal justice system and the healthcare domain.
• Score: 2.6334346517416876
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Predictive modeling often faces challenges due to limited data availability and quality, especially in domains where collected features are weakly correlated with outcomes and where additional feature collection is constrained by ethical or practical difficulties. Traditional machine learning (ML) models struggle to incorporate unobserved yet critical factors. In this work, we introduce an effective approach to formulate latent feature mining as text-to-text propositional logical reasoning. We propose FLAME (Faithful Latent Feature Mining for Predictive Model Enhancement), a framework that leverages large language models (LLMs) to augment observed features with latent features and enhance the predictive power of ML models in downstream tasks. Our framework is generalizable across various domains with necessary domain-specific adaptation, as it is designed to incorporate contextual information unique to each area, ensuring effective transfer to different areas facing similar data availability challenges. We validate our framework with two case studies: (1) the criminal justice system, a domain characterized by limited and ethically challenging data collection; (2) the healthcare domain, where patient privacy concerns and the complexity of medical data limit comprehensive feature collection. Our results show that inferred latent features align well with ground truth labels and significantly enhance the downstream classifier.

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