Repulsion Loss: Detecting Pedestrians in a Crowd

Detecting individual pedestrians in a crowd remains a challenging problem since the pedestrians often gather together and occlude each other in real-world scenarios. In this paper, we first explore how a state-of-the-art pedestrian detector is harmed by crowd occlusion via experimentation, providing insights into the crowd occlusion problem. Then, we propose a novel bounding box regression loss specifically designed for crowd scenes, termed repulsion loss. This loss is driven by two motivations: the attraction by target, and the repulsion by other surrounding objects. The repulsion term prevents the proposal from shifting to surrounding objects thus leading to more crowd-robust localization. Our detector trained by repulsion loss outperforms all the state-of-the-art methods with a significant improvement in occlusion cases.Comment: Accepted to IEEE Conference on Computer Vision and Pattern Recognition (CVPR) 201

Interdimensional degeneracies for a quantum NN-body system in DD dimensions

Complete spectrum of exact interdimensional degeneracies for a quantum $N$-body system in $D$-dimensions is presented by the method of generalized spherical harmonic polynomials. In an $N$-body system all the states with angular momentum $[\mu+n]$ in $(D-2n)$ dimensions are degenerate where $[\mu]$ and $D$ are given and $n$ is an arbitrary integer if the representation $[\mu+n]$ exists for the SO($D-2n$) group and $D-2n\geq N$. There is an exceptional interdimensional degeneracy for an $N$-body system between the state with zero angular momentum in $D=N-1$ dimensions and the state with zero angular momentum in $D=N+1$ dimensions.Comment: 8 pages, no figure, RevTex, Accepted by EuroPhys.Let

Age Differences in Consumer Financial Capability

The purpose of this study is to examine age differences in financial capability. Financial capability is measured by five variables: objective financial literacy, subjective financial literacy, desirable financial behavior, perceived financial capability, and a financial capability index. Financial capability is expected to increase with age. Specifically, we expect older consumers to demonstrate higher levels of both objective and subjective financial literacy, more desirable financial behaviors, a higher level of perceived financial capability, and a higher score on the financial capability index. Data from the 2012 National Financial Capability Study in the U.S. was used to examine the associations between age groups and financial capability variables. One-way ANOVAs were used to examine age differences in financial capability variables. Then multiple regressions were used to examine age differences after controlling for socio-demographic and financial variables. The results indicated that age differences in four financial capability variables showed similar patterns. Young adults aged 18-24 had the lowest scores on objective financial literacy, subjective financial literacy, perceived financial capability, and the financial capability index. The results have implications for consumer educators to provide effective financial education for all age groups. This article is protected by copyright. All rights reserved