Spatial Models for Crowdsourced Internet Access Network Performance Measurements
- URL: http://arxiv.org/abs/2405.11138v2
- Date: Tue, 21 May 2024 13:10:51 GMT
- Title: Spatial Models for Crowdsourced Internet Access Network Performance Measurements
- Authors: Taveesh Sharma, Paul Schmitt, Francesco Bronzino, Nick Feamster, Nicole Marwell,
- Abstract summary: Policymakers often rely on large-scale, crowdsourced measurement datasets to assess the distribution of access network performance.
We apply and evaluate a series of statistical techniques to aggregate Internet performance over a geographic region.
Our work highlights an urgent need for more sophisticated strategies in understanding and addressing Internet access disparities.
- Score: 6.921364920053057
- License: http://creativecommons.org/licenses/by-sa/4.0/
- Abstract: Despite significant investments in access network infrastructure, universal access to high-quality Internet connectivity remains a challenge. Policymakers often rely on large-scale, crowdsourced measurement datasets to assess the distribution of access network performance across geographic areas. These decisions typically rest on the assumption that Internet performance is uniformly distributed within predefined social boundaries, such as zip codes, census tracts, or community areas. However, this assumption may not be valid for two reasons: (1) crowdsourced measurements often exhibit non-uniform sampling densities within geographic areas; and (2) predefined social boundaries may not align with the actual boundaries of Internet infrastructure. In this paper, we model Internet performance as a spatial process. We apply and evaluate a series of statistical techniques to: (1) aggregate Internet performance over a geographic region; (2) overlay interpolated maps with various sampling boundary choices; and (3) spatially cluster boundary units to identify areas with similar performance characteristics. We evaluated the effectiveness of these using a 17-month-long crowdsourced dataset from Ookla Speedtest. We evaluate several leading interpolation methods at varying spatial scales. Further, we examine the similarity between the resulting boundaries for smaller realizations of the dataset. Our findings suggest that our combination of techniques achieves a 56% gain in similarity score over traditional methods that rely on aggregates over raw measurement values for performance summarization. Our work highlights an urgent need for more sophisticated strategies in understanding and addressing Internet access disparities.
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