Sufficient conditions for a real-valued Gaussian random field X = {X(t), t ∈ RN} with stationary increments to be strongly locally nondeterministic are proven. As applications, small ball probability estimates, Hausdorff measure of the sample paths, sharp Hölder conditions and tail probability estimates for the local times of Gaussian random fields are established. Running head: Strong Local No...

Conventional vision-based robotic systems that must operate quickly require high video frame rates and consequently high computational costs. Visual response latencies are lower-bound by the frame period, e.g., 20 ms for 50 Hz frame rate. This paper shows how an asynchronous neuromorphic dynamic vision sensor (DVS) silicon retina is used to build a fast self-calibrating robotic goalie, which of...

We examined human navigational principles for intercepting a projected object and tested their application in the design of navigational algorithms for mobile robots. These perceptual principles utilize a viewer-based geometry that allows the robot to approach the target without need of time-consuming calculations to determine the world coordinates of either itself or the target. Human research...

The ability to plan and execute goal specific actions in varied, unexpected settings is a central requirement of intelligent agents. In this paper, we explore how an agent can be equipped with an internal model of the dynamics of the external world, and how it can use this model to plan novel actions by running multiple internal simulations (“visual imagination”). Our models directly process ra...

In this paper I study the relation between real wage rigidity (RWR) and nominal price and wage rigidities. I show that in a standard DSGE model RWR is mainly affected by the two nominal rigidities and not by the other structural parameters. The degree of RWR is, however, considerably influenced by the modelling assumption (e.g. Calvo vs. Taylor wage contracts and the clustering of contracts). I...

One of the latest algorithms for computing similarities between nodes in a graph is Random Walk with Restart (RWR). However, on a document co-citation network for similar document search, computing transition probabilities remains difficult. To solve the problem, this paper proposes a Random Walk with Wait and Restart (RWWR) algorithm, which contains a new technique for adjusting the transition...

The first known observations of dermal ridges were made by Nehemiah Grew (1641-1712) who wrote in the Philosophical Transactions of 1684 "For if any one will but take the pains, with an indifferent Glass, to survey the Palm ot his Hand very well washed with a Ball; he may perceive innumerable little Ridges, of equal bigness and distance, and everywhere running parallel one with another. And esp...

With recent advances in radio-frequency identification (RFID), wireless sensor networks, and Web services, physical things are becoming an integral part of the emerging ubiquitous Web. Finding correlations of ubiquitous things is a crucial prerequisite for many important applications such as things search, discovery, classification, recommendation, and composition. This article presents DisCor-...

ABSTRACT Given a time-evolving graph, how can we track similarity between nodes in a fast and accurate way, with theoretical guarantees on the convergence and the error? Random Walk with Restart (RWR) is a popular measure to estimate the similarity between nodes and has been exploited in numerous applications. Many real-world graphs are dynamic with frequent insertion/deletion of edges; thus, t...