A General Framework for Fair Regression

Fairness, through its many forms and definitions, has become an important issue facing the machine learning community. In this work, we consider how to incorporate group fairness constraints in kernel regression methods, applicable to Gaussian processes, support vector machines, neural network regression and decision tree regression. Further, we focus on examining the effect of incorporating these constraints in decision tree regression, with direct applications to random forests and boosted trees amongst other widespread popular inference techniques. We show that the order of complexity of memory and computation is preserved for such models and tightly bound the expected perturbations to the model in terms of the number of leaves of the trees. Importantly, the approach works on trained models and hence can be easily applied to models in current use and group labels are only required on training data.Comment: 8 pages, 4 figures, 2 pages reference

The Tango Tokio

[Verse 1] Way out West, all over the golden gate, They’ve a tango, gee, but it’s simply great! Oh! oh! oh! oh! it’s the nicest tune, I know, It is called the Japanese glide away; You should see those Japanese slide away, When they play it, ev’rybody starts to sway it: [Chorus] Oh, oh, you Jap, little Jap, little Jap, little Japanese! Oh, oh, you cute little yap, little yap, little yapanese! How we live to see you prance, When they play that tango dance; It just puts us in a trance Oh, pinky panky poo, pinky panky poo! Oh, oh, you sly little, sly little, sly little Japaneses! You are a fly little, fly little, fly little Japanese! Tho’ you sometimes make us mad, If you want to make us glad, Do that teasing Tango Tokio. [Verse 2] When you hear that Tokio Tango tune, You’ll go dip, dip, dippy and pretty soon You’ll start swaying, just like this and just like that; You’ll imagine you are in Tokio, You will go clean clean off your kokio, If you know it, all day long you’d want to do it: [Chorus

What An Army Of Men We\u27d Have If They Ever Drafted The Girls

https://digitalcommons.library.umaine.edu/mmb-vp/4499/thumbnail.jp

All Aboard For Home Sweet Home

https://digitalcommons.library.umaine.edu/mmb-vp/4679/thumbnail.jp

Impact of multiscale dynamical processes and mixing on the chemical composition of the upper troposphere and lower stratosphere during the Intercontinental Chemical Transport Experiment–North America

We use high-frequency in situ observations made from the DC8 to examine fine-scale tracer structure and correlations observed in the upper troposphere and lower stratosphere during INTEX-NA. Two flights of the NASA DC-8 are compared and contrasted. Chemical data from the DC-8 flight on 18 July show evidence for interleaving and mixing of polluted and stratospheric air masses in the vicinity of the subtropical jet in the upper troposphere, while on 2 August the DC-8 flew through a polluted upper troposphere and a lowermost stratosphere that showed evidence of an intrusion of polluted air. We compare data from both flights with RAQMS 3-D global meteorological and chemical model fields to establish dynamical context and to diagnose processes regulating the degree of mixing on each day. We also use trajectory mapping of the model fields to show that filamentary structure due to upstream strain deformation contributes to tracer variability observed in the upper troposphere. An Eulerian measure of strain versus rotation in the large-scale flow is found useful in predicting filamentary structure in the vicinity of the jet. Higher-frequency (6–24 km) tracer variability is attributed to buoyancy wave oscillations in the vicinity of the jet, whose turbulent dissipation leads to efficient mixing across tracer gradients

Feasibility and acceptability of remote smartphone cognitive testing in frontotemporal dementia research

INTRODUCTION: Remote smartphone assessments of cognition, speech/language, and motor functioning in frontotemporal dementia (FTD) could enable decentralized clinical trials and improve access to research. We studied the feasibility and acceptability of remote smartphone data collection in FTD research using the ALLFTD Mobile App (ALLFTD-mApp). METHODS: A diagnostically mixed sample of 214 participants with FTD or from familial FTD kindreds (asymptomatic: CDR®+NACC-FTLD = 0 [ RESULTS: It was feasible for participants to complete the ALLFTD-mApp on their own smartphones. Participants reported high smartphone familiarity, completed ∼ 70% of tasks, and considered the time commitment acceptable (98% of respondents). Greater disease severity was associated with poorer performance across several tests. DISCUSSION: These findings suggest that the ALLFTD-mApp study protocol is feasible and acceptable for remote FTD research. HIGHLIGHTS: The ALLFTD Mobile App is a smartphone-based platform for remote, self-administered data collection.The ALLFTD Mobile App consists of a comprehensive battery of surveys and tests of executive functioning, memory, speech and language, and motor abilities.Remote digital data collection using the ALLFTD Mobile App was feasible in a multicenter research consortium that studies FTD. Data was collected in healthy controls and participants with a range of diagnoses, particularly FTD spectrum disorders.Remote digital data collection was well accepted by participants with a variety of diagnoses

One-dimensional spin-anisotropic kinetic Ising model subject to quenched disorder

Large-scale Monte Carlo simulations are used to explore the effect of quenched disorder on one dimensional, non-equilibrium kinetic Ising models with locally broken spin symmetry, at zero temperature (the symmetry is broken through spin-flip rates that differ for '+' and '-' spins). The model is found to exhibit a continuous phase transition to an absorbing state. The associated critical behavior is studied at zero branching rate of kinks, through analysis spreading of '+' and '-' spins and, of the kink density. Impurities exert a strong effect on the critical behavior only for a particular choice of parameters, corresponding to the strongly spin-anisotropic kinetic Ising model introduced by Majumdar et al. Typically, disorder effects become evident for impurity strengths such that diffusion is nearly blocked. In this regime, the critical behavior is similar to that arising, for example, in the one-dimensional diluted contact process, with Griffiths-like behavior for the kink density. We find variable cluster exponents, which obey a hyperscaling relation, and are similar to those reported by Cafiero et al. We also show that the isotropic two-component AB -> 0 model is insensitive to reaction-disorder, and that only logarithmic corrections arise, induced by strong disorder in the diffusion rate.Comment: 10 pages, 13 figures. Final, accepted form in PRE, including a new table summarizing the molde

3D numerical modelling of underground excavations in a faulted rock mass using the Boundary Elements Method (BEM)

This paper presents a 3D-numerical modelling technique for underground excavations in a faulted rock mass. The displacement discontinuity method is used to solve the differential equation of the problem. A presentation of this method is given in the first part of the paper. The second aspect of this paper is concerned with the verification of the new code by comparison with the results obtained from commercial numerical codes UDEC (distinct elements) and CESAR (finites elements). Case study involving a coal mining panel excavation in a faulted rock mass is presented to demonstrate the application of the code to practical mine problems.Ce papier présente le développement d'un code de modélisation numérique permettant de calculer les contraintes induites par une exploitation souterraine en présence de failles. La méthode des discontinuités de déplacement est utilisée pour résoudre l'équation différentielle du problème. Une présentation de cette méthode et son utilisation pour modéliser des veines et des failles sont présentées dans la première partie de cet article. Ensuite, une vérification de ce code, par comparaison aux codes de calculs UDEC (éléments distincts) et CEASR (éléments finis), est proposée. Enfin, une étude de cas portant sur l'exploitation d'un nouveau panneau en présence de failles dans la mine de Provence (Sud de la France) est menée pour confronter les résultats obtenus à un cas réel

My Own Venetian Rose

https://digitalcommons.library.umaine.edu/mmb-vp/2220/thumbnail.jp

The Nondeterministic Waiting Time Algorithm: A Review

We present briefly the Nondeterministic Waiting Time algorithm. Our technique for the simulation of biochemical reaction networks has the ability to mimic the Gillespie Algorithm for some networks and solutions to ordinary differential equations for other networks, depending on the rules of the system, the kinetic rates and numbers of molecules. We provide a full description of the algorithm as well as specifics on its implementation. Some results for two well-known models are reported. We have used the algorithm to explore Fas-mediated apoptosis models in cancerous and HIV-1 infected T cells