Continuous-variable measurement-device-independent quantum key distribution (CV-MDI-QKD) allows remote parties to share information-theoretical secure keys while defending all the side-channel attacks on measurement devices. However, transmission distance and secret rate are quite limited due high untrusted equivalent excess noise in Gaussian modulation. More particularly, extremely high-effici...

Configurable and scalable continuous variable quantum networks for measurement-based information protocols or multipartite communication schemes can be obtained via parametric down conversion (PDC) in non-linear waveguides. In this work, we exploit symmetric group velocity matching (SGVM) to engineer the properties of squeezed modes PDC. We identify type II PDC a single waveguide as best suited...

The ORB-SLAM2 based on the constant velocity model is difficult to determine search window of reprojection map points when objects are in variable motion, which leads a false matching, with an inaccurate pose estimation or failed tracking. To address challenge above, new method feature point matching proposed this paper, combines reverse optical flow method. First, extended model, and expanded ...

Let H be a graph having edges which has no loops and multiple edges. Complete results about the existence of colored designs CH |CK n with exactly colors, are established for 6 4 and for arbitrary when H is a matching or a star. In all cases when there is a design it can be chosen to be cyclic. Slightly less complete results are obtained when H is a path or a cycle. c © 2002 Elsevier Science B....

We analyze the effects on employment probabilities of job-trainings for unemployed Korean women during January 1999 to March 2000, where the job-trainings suffered substantial dropout problems. Three groups are pairwise compared: the control group with no treatment , the dropout group with a partial treatment, and the treatment group with the full treatment. To control for covariates, three pro...

In this paper, we propose a novel approach to track multiple objects across non-overlapping cameras, which aims at giving each object a unique label during its appearance in the whole multi-camera system. We formulate the problem of the multiclass object recognition as a binary classification problem based on an AdaBoost classifier. As the illumination variance, viewpoint changes, and camera ch...

A new algorithm to search for multiple patterns simultaneously is proposed. The multiple pattern algorithms can be used in many applications that require such type of search and matching. For example, a multipattern matching can be used in lieu of indexing or sorting data in some applications that involve small to medium size datasets. One of its advantages is that no additional search structur...