Although an optimistic approach has been shown to be better suited than locking protocols for real-time database systems (RTDBS), it has the problems of unnecessary restarts and heavy restart overhead. In this paper we identify the unnecessary restart problem in OCC-TI (Optimistic Concurrency Control with Time Intervals), propose a solution to this problem and demonstrate that the solution will...

Although higher-order rewrite systems (HRS) seem to have a first-order flavor, the direct translation into first-order rewrite systems, using e.g. explicit substitutions, is by no means trivial. In this paper, we explore a two-stage approach, by showing how higher-order pattern rewrite systems, and in fact a somewhat more general class, can be expressed by conditional first-order rewriting in t...

Several approaches have already been employed to “sense” affective information from text, but none of those ever considered the cognitive and appraisal structure of individual emotions. Hence this paper aims at interpreting the cognitive theory of emotions known as the OCC emotion model, from a linguistic standpoint. The paper provides rules for the OCC emotion types for the task of sensing aff...

this study sougth to the effect of occ pulp fractionation on produced paper strength properties improvement. using a pressure screen, occ pulp was devided to tow distinct fractions of accept ratio (short fibers) and reject ratio (long fibers) in accordance with optimum condition of fractionation based on the previous studies. in the next stage, long fiber stream was refined and recombined with ...

Orthogonal Cross Cylinder (OCC) mapping and segmentation based modeling methods have been implemented for constructing the image-based navigation system in this paper. The OCC mapping method eliminates the singularity effect caused in the environment maps and shows an almost even amount of area for the environment occupied by a single texel. A full-view image from a fixed point-of-view can be o...

BACKGROUND The incidence of oral cavity cancer (OCC) is not well documented because it is rarely described in accord with the anatomic definition but is usually grouped with oropharyngeal subsites. We studied the incidence of OCC in developed and in developing countries. METHODS The age-standardized and age-specific incidence rates of OCC were calculated for the period 1998-2002, using the to...

In this paper we describe compressed indexes that support pattern matching queries for strings with wildcards. For a constant size alphabet our data structure uses O(n log n) bits for any ε > 0 and reports all occ occurrences of a wildcard string in O(m + σ · μ(n) + occ) time, where μ(n) = o(log log logn), σ is the alphabet size, m is the number of alphabet symbols and g is the number of wildca...

Visible light communication (VLC) is an emerging technology that provides ubiquitous connectivity by complementing radio frequency for the fifth-generation (5G) wireless and beyond. However, inadequacies in modulation bandwidth of light-emitting diode (LED) reduce achievable data rate image sensor-based VLC, also known as optical camera (OCC). Hence, densely deployed OCC networks, multiple chan...