HAPEns: Hardware-Aware Post-Hoc Ensembling for Tabular Data
Ensembling is commonly used in machine learning on tabular data to boost predictive performance and robustness, but larger ensembles often lead to increased hardware demand. We introduce HAPEns, a post-hoc ensembling method that explicitly balances accuracy against hardware efficiency. Inspired by multi-objective and quality diversity optimization, HAPEns constructs a diverse set of ensembles along the Pareto front of predictive performance and resource usage. Existing hardware-aware post-hoc ensembling baselines are not available, highlighting the novelty of our approach. Experiments on 83 tabular classification datasets show that HAPEns significantly outperforms baselines, finding super...
| Authors | Jannis Maier, Lennart Purucker |
|---|---|
| Primary category | cs.LG |
| Published | 11 March 2026 |
| Last updated at source | 4 August 2026 |
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