Such a problem is of minor importance for the 'known-item' seeking mode, where search engines seem to perform well.
The proposed scheme uses a proximate time-optimal servomechanism in the track seeking mode, and a robust perfect tracking (RPT) controller in the track following mode.
In this section, we address the query formulation problem and introduce a service that assists searchers pick the most suitable terms for formalizing their requests regardless of the seeking mode to which they engage every time.
It is interesting to observe that 66.67 % of the participants who concluded their search session in one step (i.e., answered "No" to question Q.3) engaged themselves to the "known-item" seeking mode.
For rooms with the splayed planes, the sought mode frequencies can precisely be calculated in real time on a personal computer, by taking from 11 to 13 basis functions along each coordinate axis.
Every cat has its′ own position composed of M dimensions, velocities for each dimension, a fitness value which represents the accommodation of the cat to the fitness function, and a flag to identify whether the cat is in seeking mode or tracing mode.
Fig. 9 Distribution of responses to Q.4 (i.e., origin of query refinement terms) across Spencer's seeking modes.
In the course of our study, we built a query construction service that assists searchers who engage in the above seeking modes.
Additionally, the combination of answers to Q.4 and Q.1 draws interesting conclusions about the origin of the terms that have been employed to reformulate an initial query across Spencer's different seeking modes [25].
Studies published from 2005 to 2014 with a prespecified protocol (how AF was ascertained, diligence with which medical records were sought, modes of clinical assessment, and follow-up of patient subgroups) analyzing the epidemiology of AF exclusively in the general population were considered.
