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abstract indexed · arXiv 2609.14187 · updated 2026-10-18

Entropy-Punctured Bloom Filters for Memory-Efficient Machine Learning

First page of Entropy-Punctured Bloom Filters for Memory-Efficient Machine Learning
From the original paper · arXiv 2609.14187Page 1. Select the image to read the PDF.

The method replaces raw or classically compressed tabular features (PCA, random projections) with Bloom filter encodings of quantized features, punctured at low-entropy bit positions, for regression pipelines. It costs an additional encoding, quantization, and entropy-estimation stage plus some predictive fidelity, and it adds implementation complexity to the feature pipeline. It can fail if the entropy estimates from training data do not transfer to production distributions, if the evaluation datasets are not representative of the reader's workload, or if downstream models already handle raw features at acceptable memory cost.

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Entropy-punctured Bloom filter feature encoding
published
2026-09-12

The approach targets classical regression on engineered features rather than LLM workloads, and its claimed efficiency gain is plausible at small scale but unquantified and dataset-dependent, so it warrants workload-specific validation before adoption.

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To reduce representational redundancy, we apply entropy-guided puncturing to the Bloom Filter representation, drawing on the general concept of puncturing from coding theory [7]. Let pj denote the empirical activation probability of bit position j across the training samples. The marginal entropy Hj of each bit is [13]

Hj=−[pj​log2​pj+(1−pj)​log2⁡(1−pj)],

equation (1) · §III Methods · proposed method

Given an entropy threshold τ, the retained set of bit positions and its cardinality are

Sτ={j∈{1,…,m}:Hj≥τ},mτ=|Sτ|≤m.

equation (2) · §III Methods · proposed method

To summarize predictive performance relative to representation size, we define predictive efficiency (PE) as

PE=R2B,

equation (5) · §IV Experiments · metric

equations from arXiv HTML · fetched 2026-10-01

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    The method replaces raw or classically compressed tabular features (PCA, random projections) with Bloom filter encodings of quantized features, punctured at low-entropy bit positions, for regression pipelines. It costs an additional encoding, quantization, and entropy-estimation stage plus some predictive fidelity, and it adds implementation complexity to the feature pipeline. It can fail if the entropy estimates from training data do not transfer to production distributions, if the evaluation datasets are not representative of the reader's workload, or if downstream models already handle raw features at acceptable memory cost.

    This is a Paperraft inference. It is not pinned to a verified PDF passage.

    Inspect the source
  2. claim 02Paperraft inference

    Entropy-based puncturing further reduces representation size with minimal loss in predictive fidelity, yielding improved predictive efficiency (R2 per encoded representation size); no multiplicative factor is reported in the abstract.

    This is a Paperraft inference. It is not pinned to a verified PDF passage.

    Inspect the source

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