A Simple Baseline for Predicting Events with Auto-Regressive Tabular Transformers

• URL: http://arxiv.org/abs/2410.10648v3
• Date: Thu, 31 Oct 2024 19:26:43 GMT
• Title: A Simple Baseline for Predicting Events with Auto-Regressive Tabular Transformers
• Authors: Alex Stein, Samuel Sharpe, Doron Bergman, Senthil Kumar, C. Bayan Bruss, John Dickerson, Tom Goldstein, Micah Goldblum,
• Abstract summary: Existing approaches to event prediction include time-aware positional embeddings, learned row and field encodings, and oversampling methods for addressing class imbalance. We propose a simple but flexible baseline using standard autoregressive LLM-style transformers with elementary positional embeddings and a causal language modeling objective. Our baseline outperforms existing approaches across popular datasets and can be employed for various use-cases.
• Score: 70.20477771578824
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Many real-world applications of tabular data involve using historic events to predict properties of new ones, for example whether a credit card transaction is fraudulent or what rating a customer will assign a product on a retail platform. Existing approaches to event prediction include costly, brittle, and application-dependent techniques such as time-aware positional embeddings, learned row and field encodings, and oversampling methods for addressing class imbalance. Moreover, these approaches often assume specific use-cases, for example that we know the labels of all historic events or that we only predict a pre-specified label and not the data's features themselves. In this work, we propose a simple but flexible baseline using standard autoregressive LLM-style transformers with elementary positional embeddings and a causal language modeling objective. Our baseline outperforms existing approaches across popular datasets and can be employed for various use-cases. We demonstrate that the same model can predict labels, impute missing values, or model event sequences.

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