University of California

About: University of California is a education organization based out in Oakland, California, United States. It is known for research contribution in the topics: Population & Layer (electronics). The organization has 55175 authors who have published 52933 publications receiving 1491169 citations. The organization is also known as: UC & University of California System.

Cardinal Welfare, Individualistic Ethics, and Interpersonal Comparisons of Utility

Abstract: The naive concept of social welfare as a sum of intuitively measurable and comparable individual cardinal utilities has been found unable to withstand the methodological criticism of the Pareto school. Professor Bergson2 has therefore recommended its replacement by the more general concept of. a social welfare function, defined as an arbitrary mathematical function of economic (and other social) variables, of a form freely chosen according to one’s personal ethical (or political) value judgments. Of course, in this terminology everybody will have a social welfare function of his own, different from that of everybody else except to the extent to which different individuals’ value judgments happen to coincide with one another. Actually, owing to the prevalence of individualistic value judgments in our society, it has been generally agreed that a social welfare function should be an increasing function of the utilities of individuals: if a certain situation, X, is preferred by an individual to another situation, y, and if none of the other individuals prefers Y to X, then X should be regarded as socially preferable to y. But no other restriction is to be imposed on the mathematical form of a social welfare function.

Colorful Image Colorization

Abstract: Given a grayscale photograph as input, this paper attacks the problem of hallucinating a plausible color version of the photograph. This problem is clearly underconstrained, so previous approaches have either relied on significant user interaction or resulted in desaturated colorizations. We propose a fully automatic approach that produces vibrant and realistic colorizations. We embrace the underlying uncertainty of the problem by posing it as a classification task and use class-rebalancing at training time to increase the diversity of colors in the result. The system is implemented as a feed-forward pass in a CNN at test time and is trained on over a million color images. We evaluate our algorithm using a “colorization Turing test,” asking human participants to choose between a generated and ground truth color image. Our method successfully fools humans on 32 % of the trials, significantly higher than previous methods. Moreover, we show that colorization can be a powerful pretext task for self-supervised feature learning, acting as a cross-channel encoder. This approach results in state-of-the-art performance on several feature learning benchmarks.

Stress response syndromes

Abstract: The signs and symptoms of response to a stressful life event are expressed in two predominant phases: the intrusive state, characterized by unbidden ideas and feelings and even compulsive actions, and the denial state, characterized by emotional numbing and constriction of ideation. In this review of stress-response syndromes, I will outline those phases, discuss the DSM-III (American Psychiatric Association, 1980) diagnoses for stressresponse disorders, and consider the mutual etiologic effects of stressful life events, psychiatric disorders, and preexisting conflicts or functional deficits. Guidelines for brief dynamic psychotherapy for patients who need more than transient support are presented.

Jupyter Notebooks – a publishing format for reproducible computational workflows

Abstract: It is increasingly necessary for researchers in all fields to write computer code, and in order to reproduce research results, it is important that this code is published. We present Jupyter notebooks, a document format for publishing code, results and explanations in a form that is both readable and executable. We discuss various tools and use cases for notebook documents.