Compare More Nuanced:Pairwise Alignment Bilinear Network For Few-shot Fine-grained Learning

The recognition ability of human beings is developed in a progressive way. Usually, children learn to discriminate various objects from coarse to fine-grained with limited supervision. Inspired by this learning process, we propose a simple yet effective model for the Few-Shot Fine-Grained (FSFG) recognition, which tries to tackle the challenging fine-grained recognition task using meta-learning. The proposed method, named Pairwise Alignment Bilinear Network (PABN), is an end-to-end deep neural network. Unlike traditional deep bilinear networks for fine-grained classification, which adopt the self-bilinear pooling to capture the subtle features of images, the proposed model uses a novel pairwise bilinear pooling to compare the nuanced differences between base images and query images for learning a deep distance metric. In order to match base image features with query image features, we design feature alignment losses before the proposed pairwise bilinear pooling. Experiment results on four fine-grained classification datasets and one generic few-shot dataset demonstrate that the proposed model outperforms both the state-ofthe-art few-shot fine-grained and general few-shot methods.Comment: ICME 2019 Ora

Review on the study of intraocular lens dislocation

Dislocation of intraocular lens(IOL)is one complication of cataract extraction and posterior chamber IOL implantation. The reasons for IOL dislocation include incompletion of lens capsule cut, unevenness of capsulorhexis, break of zonules and/or posterior capsule, remain of lens cortex, capsule contraction, drag of exudate and organize strap, after cataract, trauma, etc. And the treatments for IOL dislocation include simple IOL reposition, capsular tension ring(CTR)implantation, anterior chamber IOL implantation, suspensory IOL implantation, IOL dislodgment, vitrectomy, etc

Cross-cultural validation of the Chinese cultural value scale in tourism

This study aims to validate the Chinese Cultural Value Scale in Tourism (CCV-T) across cultures, using a sample of 405 Australian tourists. Through the application of Confirmatory Composite Analysis (CCA) within Partial Least Squares Structural Equation Modelling (PLS-SEM), the study demonstrates that the CCV-T scale exhibits excellent measurement qualities, including indicator reliability, construct reliability, convergent validity, discriminant validity, and nomological validity. The CCV-T scale comprises five dimensions: Life and Leisure Enjoyment (LLE), Filial Piety and Relationship (FPR), Self-fulfilment, Righteousness, and Humanity, consisting of 17 measurement items. The findings indicate that this scale is suitable for use with Australian tourists, representing a Western cultural context. Moreover, the CCV-T scale demonstrates its potential as a universal tool for measuring cultural values in tourism, applicable across various cultural and national contexts. This makes it a valuable instrument for future cross-cultural studies focusing on cultural values within the realm of tourism. This study makes a significant contribution to the field of cultural value studies in tourism by establishing a scale that is valid across different cultures. Industry professionals and policymakers can utilize this scale and its dimensions for purposes such as tourism product development and policy creation

The Υ(1S)\Upsilon(1S) leptonic decay using the principle of maximum conformality

In the paper, we study the $\Upsilon(1S)$ leptonic decay width $\Gamma(\Upsilon(1S)\to \ell^+\ell^-)$ by using the principle of maximum conformality (PMC) scale-setting approach. The PMC adopts the renormalization group equation to set the correct momentum flow of the process, whose value is independent to the choice of the renormalization scale and its prediction thus avoids the conventional renormalization scale ambiguities. Using the known next-to-next-to-next-to-leading order perturbative series together with the PMC single scale-setting approach, we do obtain a renormalization scale independent decay width, $\Gamma_{\Upsilon(1S) \to e^+ e^-} = 1.262^{+0.195}_{-0.175}$ keV, where the error is squared average of those from $\alpha_s(M_{Z})=0.1181\pm0.0011$, $m_b=4.93\pm0.03$ GeV and the choices of factorization scales within $\pm 10\%$ of their central values. To compare with the result under conventional scale-setting approach, this decay width agrees with the experimental value within errors, indicating the importance of a proper scale-setting approach.Comment: 6 pages, 4 figure