Software

Mojave: A Recommendation System for Software Upgrades

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Executive Summary

Software upgrades are frequent. Unfortunately, many of the upgrades either fail or misbehave. The authors argue that many of these failures can be avoided for new users of each upgrade by exploiting the characteristics of the upgrade and feedback from the users that have already installed it. To demonstrate that this can be achieved, they build Mojave, the first recommendation system for software upgrades. Mojave leverages data from the existing and new users, machine learning, and static and dynamic source analyses. For each new user, Mojave computes the likelihood that the upgrade will fail for him/her. Based on this value, Mojave recommends for or against the upgrade. They evaluate Mojave for two real upgrade problems with the OpenSSH suite. Initial results show that it provides accurate recommendations.

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