Optimising the approximation of Average Precision (AP) has been widely studied for image retrieval. Limited by definition AP, such methods consider both negative and positive instances ranking before each instance. However, we claim that only penalizing ones is enough, because loss comes from these instances. To this end, propose a novel loss, namely Penalizing Negative Positive (PNP), which ca...

Background: Recent reports describe EGPA as having two subgroups ANCA positive and negative. Furthermore, there could be differences in terms of clinical features outcomes (1). Objectives: The aim this study was to compare the characteristics patients with those negative ones. Methods: This retrospective, descriptive included 50 (male/female:13/27) from our prospective vasculitis database Octob...

It is conjectured that a hyperbolic knot complement does not contain a closed embedded totally geodesic surface. In this paper, we show that there are no such surfaces in the complements of hyperbolic 3-bridge knots and double torus knots. Some topological criteria for a closed essential surface failing to be totally geodesic are given. Roughly speaking, sufficiently ‘complicated’ surfaces can ...

In this paper, we analyze complemented group Cellular Automata (CA) derived from Linear Hybrid Group CA with rules 60, 102 and 204. We analyze some properties of the CA. And we give rule vectors which determine the state transition of the CA dividing the entire state space into smaller spaces of equal lengths, and find conditions for the complement vectors corresponding to the rule vectors. And...

This paper presents a novel multi-Gb/s multi-mode LDPC decoder architecture and efficient design techniques for gigabit wireless communications. An efficient dynamic and fixed column-shifting scheme is presented for multi-mode architectures. A novel low-complexity local switch is proposed to implement the dynamic and fixed column-shifting scheme. Furthermore, an efficient quantization method an...

The sequential and indeterminate behavior of an end-around-carry (EAC) adder is examined. This behavior is commonly overlooked in the literature. Design modifications to impose determinism are provided. These modifications also eliminate the troublesome negative zero found in the one's complement number system.

Two kinds of configuration schemes about eight and ten single-axis vector magnetometers are put forward on the basis of describing the principle of underwater magnetic field localization. The measurement equations of magnetic field magnitude and gradients are educed on condition of two configuration schemes, and that the calculated precisions of both magnetic field magnitude and gradients are c...

The paper introduces an approach for crosstalk-free bitpermute-complement (BPC) permutations routing in hybrid optical variable-stage shuffle-exchange networks (SENs) of size where N=2, and the number of stages can vary in . The number of stages should be asserted as required by a given BPC permutation for its admissibility. The crosstalk is caused by interacting of two optical signals within t...