403 research outputs found
Gluon Fusion induced Zg and Zgg Productions in the Standard Model at the LHC
We report calculations of the gluon induced Zg and Zgg productions in the
Standard Model at the LHC operating at both 7 TeV and 14 TeV collision energy.
We present total cross sections and differential distributions of the processes
and compare them with the leading and next-to-leading order QCD pp -> Z+1 jet,
Z+2 jets results. Our results show that the gluon induced Zg and Zgg
productions contribute to pp -> Z+1 jet, Z+2 jets at 1% level.Comment: 8 pages, 5 figure
Tracking without Label: Unsupervised Multiple Object Tracking via Contrastive Similarity Learning
Unsupervised learning is a challenging task due to the lack of labels.
Multiple Object Tracking (MOT), which inevitably suffers from mutual object
interference, occlusion, etc., is even more difficult without label
supervision. In this paper, we explore the latent consistency of sample
features across video frames and propose an Unsupervised Contrastive Similarity
Learning method, named UCSL, including three contrast modules: self-contrast,
cross-contrast, and ambiguity contrast. Specifically, i) self-contrast uses
intra-frame direct and inter-frame indirect contrast to obtain discriminative
representations by maximizing self-similarity. ii) Cross-contrast aligns cross-
and continuous-frame matching results, mitigating the persistent negative
effect caused by object occlusion. And iii) ambiguity contrast matches
ambiguous objects with each other to further increase the certainty of
subsequent object association through an implicit manner. On existing
benchmarks, our method outperforms the existing unsupervised methods using only
limited help from ReID head, and even provides higher accuracy than lots of
fully supervised methods
Diagnosis of a malayan filariasis case using a shotgun diagnostic metagenomics assay
Typing of blast hits after analyzing subcutaneous tissue sample and details of the phylogenetic MEGAN output. (DOC 198 kb
An Evaluation of the Effectiveness of the Use of Social Media by United Way of Westchester and Putnam
- …