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Autore principale: Diehl, Joscha
Natura: Preprint
Pubblicazione: 2025
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Accesso online:https://arxiv.org/abs/2504.05274
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author Diehl, Joscha
author_facet Diehl, Joscha
contents Aggregation of time-series or image data over subsets of the domain is a fundamental task in data science. We show that many known aggregation operations can be interpreted as (double) functors on appropriate (double) categories. Such functorial aggregations are amenable to parallel implementation via straightforward extensions of Blelloch's parallel scan algorithm. In addition to providing a unified viewpoint on existing operations, it allows us to propose new aggregation operations for time-series and image data.
format Preprint
id arxiv_https___arxiv_org_abs_2504_05274
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Aggregating time-series and image data: functors and double functors
Diehl, Joscha
Category Theory
Machine Learning
18D05 68W10
Aggregation of time-series or image data over subsets of the domain is a fundamental task in data science. We show that many known aggregation operations can be interpreted as (double) functors on appropriate (double) categories. Such functorial aggregations are amenable to parallel implementation via straightforward extensions of Blelloch's parallel scan algorithm. In addition to providing a unified viewpoint on existing operations, it allows us to propose new aggregation operations for time-series and image data.
title Aggregating time-series and image data: functors and double functors
topic Category Theory
Machine Learning
18D05 68W10
url https://arxiv.org/abs/2504.05274