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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2507.06021 |
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| _version_ | 1866911045538283520 |
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| author | Barrowclough, George Andrecki, Marian Shinner, James Donghi, Daniele |
| author_facet | Barrowclough, George Andrecki, Marian Shinner, James Donghi, Daniele |
| contents | In production recommender systems, feature preprocessing must be faithfully replicated across training and inference environments. This often requires duplicating logic between offline and online environments, increasing engineering effort and introducing risks of dataset shift. We present Kamae, an open-source Python library that bridges this gap by translating PySpark preprocessing pipelines into equivalent Keras models. Kamae provides a suite of configurable Spark transformers and estimators, each mapped to a corresponding Keras layer, enabling consistent, end-to-end preprocessing across the ML lifecycle. Framework's utility is illustrated on real-world use cases, including MovieLens dataset and Expedia's Learning-to-Rank pipelines. The code is available at https://github.com/ExpediaGroup/kamae. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_06021 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Kamae: Bridging Spark and Keras for Seamless ML Preprocessing Barrowclough, George Andrecki, Marian Shinner, James Donghi, Daniele Machine Learning In production recommender systems, feature preprocessing must be faithfully replicated across training and inference environments. This often requires duplicating logic between offline and online environments, increasing engineering effort and introducing risks of dataset shift. We present Kamae, an open-source Python library that bridges this gap by translating PySpark preprocessing pipelines into equivalent Keras models. Kamae provides a suite of configurable Spark transformers and estimators, each mapped to a corresponding Keras layer, enabling consistent, end-to-end preprocessing across the ML lifecycle. Framework's utility is illustrated on real-world use cases, including MovieLens dataset and Expedia's Learning-to-Rank pipelines. The code is available at https://github.com/ExpediaGroup/kamae. |
| title | Kamae: Bridging Spark and Keras for Seamless ML Preprocessing |
| topic | Machine Learning |
| url | https://arxiv.org/abs/2507.06021 |