Transparency has long been held up as the solution to the societal harms caused by digital platforms’ use of algorithms. However, what transparency means, how to create meaningful transparency, and what behaviors can be altered through transparency are all ambiguous legal and policy questions. This paper argues for beginning with clarifying the desired outcome (the “why”) before focusing on transparency processes and tactics (the “how”). Moving beyond analyses of the ways algorithms impact human lives, this research articulates an approach that tests and implements the right set of transparency tactics aligned to specific predefined behavioral outcomes we want to see on digital platforms. To elaborate on this approach, three specific desirable behavioral outcomes are highlighted, to which potential transparency tactics are then mapped. No single set of transparency tactics can solve all the harms possible from digital platforms, making such an outcomes‐focused transparency tactic selection approach the best suited to the constantly‐evolving nature of algorithms, digital platforms, and our societies.This article is protected by copyright. All rights reserved.
Abstract. To calibrate three-axis magnetic compass in complex conditions, an ellipsoid fitting algorithm is proposed in this paper, which is based on genetic algorithm searching for intersecting plane. First, by intersecting ellipsoid surface with a plane equation covering the whole space, the corresponding elliptic equation could be obtained. Then, using minimum sum of squares of the distance between data points and the fitting ellipsoid as the index, the three-dimensional magnetic compass data are fitted with the ellipse constraint. The adoption to the genetic algorithm is followed to search for the optimal intersecting plane equation, thus obtaining the optimal correction parameters of magnetic compass. Based on a series of tests, the static azimuth accuracy and dynamic azimuth accuracy can reach 0.46 degree and 0.68 degree respectively. This proposed method has high calibration accuracy and can meet the application requirements of magnetic compass.
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