Temporal indeterminacy is an inherent problem which arises when capturing and manipulating temporal data in many application areas. As such, representation and manipulation of timestamps with indeterminacy is a requirement for these applications. We present an extension of Allen’s thirteen interval relationships to indeterminate temporal intervals based on a novel representation for indetermina...

The interval graph for a set of intervals on a line consists of one vertex for each interval, and an edge for each intersecting pair of intervals. A probe interval graph is a variant that is motivated by an application to genomics, where the intervals are partitioned into two sets: probes and non-probes. The graph has an edge between two vertices if they intersect and at least one of them is a ...

A supervised classification method for time series, even multivariable, is proposed. It is based on boosting very simple classifiers. They are formed only by one literal. The used predicates, such as “always” and “sometime” operate over temporal intervals and regions in the dominion of the values of the variable. These regions are obtained previously, using discretization techniques. The experi...

We introduce a new motion blur computation method for ray tracing that provides an analytical approximation of motion blurred visibility per ray. Rather than relying on timestamped rays and Monte Carlo sampling to resolve the motion blur, we associate a time interval with rays and directly evaluate when and where each ray intersects with animated object faces. Based on our simplifications, the ...

OBJECTIVE: To test the hypothesis that children with a previous history of concussion have a longer duration of symptoms after a repeat concussion than those without such a history. METHODS: Prospective cohort study of consecutive patients 11 to 22 years old presenting to the emergency department of a children’s hospital with an acute concussion. The main outcome measure was time to symptom res...

This paper presents an application of Point-Interval logic (PIL) for the problem of planning timesensitive aspects of a mission. The logic incorporates both point and interval structures of time associated with mission activities and also provides for qualitative and quantitative descriptions of temporal requirements among mission activities. An algorithm is presented that extends the inference...

In this paper we study the problem of find optimal feedback control that can keep an agent within an interval for at least a certain amount of expected time with the least energy. The dynamics of the agent are subject to the perturbation of random noises, and thus are given by a stochastic differential equation. By formulating the problem as an optimal control problem, we propose a solution by ...

As papers often may belong to more than a single category, we apologize if some authors feel they have been “misplaced,” but we tried to maintain equilibrium among the different categories without being unfaithful to the authors’ main message. It has been a great pleasure to be involved in this Research Topic as much progress has been made in exploring the temporal horizons of the mind and brai...

Reasoning about and with time has never been studied extensively in the context of cognitive architectures. We present a temporal reasoning system that can make accurate predictions for two classic interval estimation experiments by Rakitin et al. (1998) and Penney et al. (2000). The system is implemented as an additional module for ACT-R. In combination with ACT-R’s other mechanisms, it makes ...

This paper presents the design, architecture, and operation of a precision time interval and frequency counter made as a small, portable instrument with USB interface. Thanks to the use of advanced time interpolators designed in a CMOS chip, the precision (standard deviation) below 35 ps was obtained at measured time interval from 0 to 200 ms. The frequency can be measured up to 3.5 GHz. The de...