This paper presents the details and preliminary results of a saliency-based attention mechanism that is part of an architecture designed to detect and recognise traffic signs from a set of images.

If an ‘ideology’, in its broadest sense, is ‘a system of ideas’, semiotics, the study of sign systems, is predestined to make essential contributions to the study of ideologies. The semiotic approach to the study of ideology begins with an investigation of the concept itself, which has changed considerably in the course of its history. Theoretical semiotics has studied signs of ideologies and i...

We present an accurate and efficient system for traffic sign recognition in a real-world driving scene video. The proposed system uses local structure features to achieve high, illumination-invariant accuracy in detection and recognition. We exploit a property of traffic signs, namely, shared boundary shapes, to enhance the speed and accuracy of the detection step. A multi-level SVM structure i...

Power-associative antiflexible algebras have been studied by the author [3] and Kosier [2]. As a matter of terminology, we shall define an algebra as a finite dimensional vector space on which a multiplication is defined in which both distributive laws are satisfied. If A is an algebra over a field F of characteristic not two, then A has an attached algebra A + which is the same additive group ...

Fibrosis is caused by scar tissue formation in internal organs and is associated with 45% of deaths in the United States. Two closely related human serum proteins, serum amyloid P (SAP) and C-reactive protein (CRP), strongly affect fibrosis. In multiple animal models, and in Phase 1 and Phase 2 clinical trials, SAP affects several aspects of the innate immune system to reduce fibrosis, whereas ...

Hence, q is bounded from above and limt→∞ q(t) = q∞ <∞. Note that the function r may change sign. By a solution of () we mean a function x differentiable up to order n which satisfies () on [Tx,∞), Tx ≥ . A solution of () is said to be proper if sup{|x(t)| : t ≥ T} >  for any T ≥ Tx. As usual, a solution x of () is said to be oscillatory if x changes sign for large t. The aim of this pape...

Suppose that the function q(t) in the diierential equation (1) y 00 + q(t)y = 0 is decreasing on (b;1) where b 0. We give conditions on q which ensure that (1) has a pair of solutions y 1 (t); y 2 (t) such that the n-th derivative (n 1) of the function p(t) = y 2 1 (t) + y 2 2 (t) has the sign (?1) n+1 for suuciently large t and that the higher diierences of a sequence related to the zeros of s...

W e consider the complexity of computing Boolean functions b y analog circuits of bounded fan-in, i.e. b y circuits of gates computing real-valued functions, either exactly or as a sign-representation. Sharp upper bounds are obtained for the complexity of the most &@cult n-variable function over certain bases (signrepresentation by arithmetic circuits and exact computation b y piecewise linear ...

The numerical and computational aspects of the overlap formalism in lattice quantum chromodynamics are extremely demanding due to a matrix-vector product that involves the sign function of the hermitian Wilson matrix. In this paper we investigate several methods to compute the product of the matrix sign-function with a vector, in particular Lanczos based methods and partial fraction expansion m...