نتایج جستجو برای: continuous data
تعداد نتایج: 2612678 فیلتر نتایج به سال:
A model for missing data in mixed binary and continuous responses, which can be used on cross-sectional data, is presented. In this model response indicator for the binary response can be dependent on the continuous response. A closed form for the likelihood is found. For data with a complicated pattern of missing responses some new residuals are also proposed. The model of multiplicative heter...
The selection and implantation of sufficient and appropriate continuous improvement strategy are the key success factors for improving firm performance and enhancement of competitive advantage on manufacturing industries. As a result special role are given to Continuous improvement programs such as Supply Chain Management (SCM), Six-Sigma, Total Quality Management (TQM), Kaizen, Just-in-Time (J...
در این پایان نامه ابتدا بانیم گروه های توپولوژیکی ونیم توپولوژیکی و گروه های پیرا توپولوژیکی و مفاهیم چند از آنها آشنا می شویم. سپس با بررسی ویژگی های نیم گروه های توپولوژیکی، گروه های پیرا توپولوژیکی در پی شرایطی خواهیم بود اگر یک نیم گروه توپولوژیکی با یک گروه پیرا توپولوژیکی دارای آن باشد، خود یک گروه توپولوژیکی شود. در ادامه نیم گروه های توپولوژیکی معکوس را بررسی ودر پی شرایطی هستیم که نگاش...
Monitoring data streams in real time over distributed streaming environments plays a large role in maintaining situation awareness, which is a great challenge due to huge data volumes and bandwidth limitations. In this monitoring process, transmission cost and value accuracy are two very important but conflicting factors in measuring the efficacy of the system. On one hand, increasing value acc...
Online data or streaming data are getting more and more important for enterprise information systems, e.g. by integrating sensor data and workflows. The continuous flow of data provided e.g. by sensors requires new workflow models addressing the data perspective of these applications, since continuous data is potentially infinite while business process instances are always finite. In this paper...
the subjects of the study are only the tefl teachers and students at gilan university. to obtain the desired data, a questionnaire which was based on the theories and disecussions gathered, was used as the main data gathering instrument. to determine the degree of relationship between variables, covariance and pearson product moment correlation coefficient were the formulas applied. the data we...
abstract: in this thesis, we focus to class of convex optimization problem whose objective function is given as a linear function and a convex function of a linear transformation of the decision variables and whose feasible region is a polytope. we show that there exists an optimal solution to this class of problems on a face of the constraint polytope of feasible region. based on this, we dev...
As most current query processing architectures are already pipelined, it seems logical to apply them to data streams. However, two classes of query operators are impractical for processing long or infinite data streams. Unbounded stateful operators maintain state with no upper bound in size and, so, run out of memory. Blocking operators read an entire input before emitting a single output and, ...
The untapped source of information, extracted from the increasing number of sensors, can be explored to improve and optimize several systems. Yet, hand in hand with this growth goes the increasing difficulty to manage and organize all this new information. The lack of a standard context representation scheme is one of the main struggles in this research area. Conventional methods for extracting...
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