198,963 research outputs found
Transductive Multi-View Zero-Shot Learning
No full text(c) 2012. The copyright of this document resides with its authors.
It may be distributed unchanged freely in print or electronic forms
Unsupervised learning of generative topic saliency for person re-identification
No full text(c) 2014. The copyright of this document resides with its authors.
It may be distributed unchanged freely in print or electronic forms.© 2014. The copyright of this document resides with its authors. Existing approaches to person re-identification (re-id) are dominated by supervised learning based methods which focus on learning optimal similarity distance metrics. However, supervised learning based models require a large number of manually labelled pairs of person images across every pair of camera views. This thus limits their ability to scale to large camera networks. To overcome this problem, this paper proposes a novel unsupervised re-id modelling approach by exploring generative probabilistic topic modelling. Given abundant unlabelled data, our topic model learns to simultaneously both (1) discover localised person foreground appearance saliency (salient image patches) that are more informative for re-id matching, and (2) remove busy background clutters surrounding a person. Extensive experiments are carried out to demonstrate that the proposed model outperforms existing unsupervised learning re-id methods with significantly simplified model complexity. In the meantime, it still retains comparable re-id accuracy when compared to the state-of-the-art supervised re-id methods but without any need for pair-wise labelled training data
A discussion of morphological differences within Claassenia qingzanga Xiang, Huo & Du, 2022 (Plecoptera: Perlidae) based on molecular data and a redescription of C. magna Wu, 1948
No full textXiang, Ya-Nan, Huo, Qing-Bo, Du, Yu-Zhou (2022): A discussion of morphological differences within Claassenia qingzanga Xiang, Huo & Du, 2022 (Plecoptera: Perlidae) based on molecular data and a redescription of C. magna Wu, 1948. Zootaxa 5141 (3): 287-294, DOI: 10.11646/zootaxa.5141.3.
FIGURE 6 in A discussion of morphological differences within Claassenia qingzanga Xiang, Huo & Du, 2022 (Plecoptera: Perlidae) based on molecular data and a redescription of C. magna Wu, 1948
No full textFIGURE 6. Claassenia magna Wu, 1948. A. Female head and pronotum, dorsal view; B. Female terminalia, dorsal view; C. Female terminalia, ventral view.Published as part of Xiang, Ya-Nan, Huo, Qing-Bo & Du, Yu-Zhou, 2022, A discussion of morphological differences within Claassenia qingzanga Xiang, Huo & Du, 2022 (Plecoptera: Perlidae) based on molecular data and a redescription of C. magna Wu, 1948, pp. 287-294 in Zootaxa 5141 (3) on page 291, DOI: 10.11646/zootaxa.5141.3.6, http://zenodo.org/record/659280
FIGURE 2 in A discussion of morphological differences within Claassenia qingzanga Xiang, Huo & Du, 2022 (Plecoptera: Perlidae) based on molecular data and a redescription of C. magna Wu, 1948
No full textFIGURE 2. Claassenia magna Wu, 1948. Male head and pronotum, dorsal view.Published as part of Xiang, Ya-Nan, Huo, Qing-Bo & Du, Yu-Zhou, 2022, A discussion of morphological differences within Claassenia qingzanga Xiang, Huo & Du, 2022 (Plecoptera: Perlidae) based on molecular data and a redescription of C. magna Wu, 1948, pp. 287-294 in Zootaxa 5141 (3) on page 289, DOI: 10.11646/zootaxa.5141.3.6, http://zenodo.org/record/659280
FIGURE 4 in A discussion of morphological differences within Claassenia qingzanga Xiang, Huo & Du, 2022 (Plecoptera: Perlidae) based on molecular data and a redescription of C. magna Wu, 1948
No full textFIGURE 4. Claassenia magna Wu, 1948. A. Aedeagus, dorsal view; B. Aedeagus, ventral view.Published as part of Xiang, Ya-Nan, Huo, Qing-Bo & Du, Yu-Zhou, 2022, A discussion of morphological differences within Claassenia qingzanga Xiang, Huo & Du, 2022 (Plecoptera: Perlidae) based on molecular data and a redescription of C. magna Wu, 1948, pp. 287-294 in Zootaxa 5141 (3) on page 290, DOI: 10.11646/zootaxa.5141.3.6, http://zenodo.org/record/659280
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Critical behavior in the low-energy spin fluctuations in high-T-c superconductors
No full textWe study the spin fluctuations of pure and Zn-substituted La2 – x Sr x CuO4 using the muon spin relaxation technique. Superconductivity is found to coexist with low-frequency spin fluctuations over a large region of the superconducting phase diagram. The characteristic temperature of spin fluctuations detected by SR decreases with increasing x and vanishes above a critical doping x c 0.19. This value of x c coincides with the doping at which the normal state pseudogap extrapolates to zero. These results are discussed in terms of a quantum transition that separates the superconducting phase diagram of high-temperature superconductors into two distinct ground states
Data for: Petrography, REEs and isotopes (C, O and Sr) constraints on the origin of Ordovician Majiagou Formation dolomite in the Yangshuiwu area, Jizhong Depression, North China Platform
No full textThe data include rare earth elements, isotopes (C, O and Sr) about the Ordovician Majiagou Formation carbonate rocks in the Yangshuiwu area, Jizhong Depression, North China Platform
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