نتایج جستجو برای: moving window

تعداد نتایج: 164322  

2004
Fernanda Ferreira John M. Henderson Michael D. Anes Phillip A. Weeks David K. McFarlane

In 2 experiments, a new technique called the auditory moving window was used to investigate aspects of spoken-language processing. Participants paced their way through spoken sentences divided into word or wordlike segments, and their processing time for each segment was recorded. The 1st experiment demonstrated that high-frequency words in spoken sentences require less time to process than do ...

عباس پور, جواد, معلم, پیمان, معمار مقدم, علیرضا, کاوش تهرانی, مسعود,

The mean shift algorithm is one of the popular methods in visual tracking for non-rigid moving targets. Basically, it is able to locate repeatedly the central mode of a desirable target. Object representation in mean shift algorithm is based on its feature histogram within a non-oriented individual kernel mask. Truly, adjusting of the kernel scale is the most critical challenge in this method. ...

Background: in radiation treatment of moving targets located in thorax region of patient body, the delivered dose does not match with the planned treatment, resulting in some over and under dosage in the tumor volume, as a function of motion magnitude and frequency. Several efforts have been done to investigate the target motion effects on dose distribution in the target and surrounding normal ...

2012
C Khamfongkhruea C Tannanonta S Thongsawad

PURPOSE To investigate the dosimetric accuracy of the sliding window gated IMRT compared with the static treatment, using varying dose rates. MATERIALS AND METHODS This study measured changes in output and diode array response with changing dose rate, verified the precision of the motion table, and measured changes in dose distribution accuracy with film and diodes at two depths with changing...

Journal: :Vision Research 2015
Peng Sun Charles Chubb George Sperling

UNLABELLED In the Barber-Pole Illusion (BPI), a diagonally moving grating is perceived as moving vertically because of the narrow, vertical, rectangular shape of the aperture window through which it is viewed. This strong shape-motion interaction persists through a wide range of parametric variations in the shape of the window, the spatial and temporal frequencies of the moving grating, the con...

2003
Boris Kerkez Michael T. Cox

While manipulating an interface, users often generate a proliferation of windows that overlap with each other and cause disorganization. Given a cluttered screen, many actions are possible to reorganize the configuration including moving and minimizing windows. This paper claims that three types of knowledge xist to aid the user and the system in intelligently reducing the clutter. They are the...

2004
Andrea Frosini Maurice Nivat

A binary matrix can be scanned by moving a fixed rectangular window (submatrix) across it, rather like examining it closely under a microscope. With each viewing, a convenient measurement is the number of 1s visible in the window, which might be thought of as the luminosity of the window. The rectangular scan of the binary matrix is then the collection of these luminosities presented in matrix ...

2007
Marcio Faerman Célio Vinicius N. de Albuquerque Otto Carlos M. B. Duarte

This paper describes a window-based policing mechanism, called Time Slotted Moving Window. Its key idea consists in aggregating the arrival events computation in order to minimize the processing and buffering requirements. Its main characteristics are simplicity, low implementation complexity, memory saving and use of a single low precision timer. Its performance behavior ranges from jumping wi...

Journal: :PVLDB 2015
Viktor Leis Kan Kundhikanjana Alfons Kemper Thomas Neumann

Window functions, also known as analytic OLAP functions, have been part of the SQL standard for more than a decade and are now a widely-used feature. Window functions allow to elegantly express many useful query types including time series analysis, ranking, percentiles, moving averages, and cumulative sums. Formulating such queries in plain SQL-92 is usually both cumbersome and inefficient. De...

Journal: :journal of advances in computer engineering and technology 2015
fatemeh abdi aliasghar safaei

todays, in many modern applications, we search for frequent and repeating patterns in the analyzed data sets. in this search, we look for patterns that frequently appear in data set and mark them as frequent patterns to enable users to make decisions based on these discoveries. most algorithms presented in the context of data stream mining and frequent pattern detection, work either on uncertai...

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