نتایج جستجو برای: گراف های غیر چرخشی سودار dag
تعداد نتایج: 499970 فیلتر نتایج به سال:
Many computational solutions can be expressed as Directed Acyclic Graph (DAG), in which nodes represent tasks to be executed and edges represent precedence constraints among tasks. A Cluster of processors is a shared resource among several users and hence the need for a scheduler which deals with multi-user jobs presented as DAGs. The scheduler must find the number of processors to be allotted ...
The functions and morphology of cellular membranes are intimately related and depend not only on their protein content but also on the repertoire of lipids that comprise them. In the absence of in vivo data on lipid asymmetry in endomembranes, it has been argued that motors, scaffolding proteins or integral membrane proteins rather than non-lamellar bilayer lipids such as diacylglycerol (DAG), ...
Rationale: Fetuses that develop in diabetic mothers have a higher incidence of birth defects that include cardiovascular defects, but the signaling pathways that mediate these developmental effects are poorly understood. It is reasonable to hypothesize that diabetic maternal effects are mediated by 1 or more pathways activated downstream of aberrant glucose metabolism, because poorly controlled...
Differential regulation of primary and memory CD8 T cell immune responses by diacylglycerol kinases.
The manipulation of signals downstream of the TCR can have profound consequences for T cell development, function, and homeostasis. Diacylglycerol (DAG) produced after TCR stimulation functions as a secondary messenger and mediates the signaling to Ras-MEK-Erk and NF-κB pathways in T cells. DAG kinases (DGKs) convert DAG into phosphatidic acid, resulting in termination of DAG signaling. In this...
We extend the language of influence diagrams to cope with decision scenarios where the order of decisions and observations is not determined. As the ordering of decisions is dependent on the evidence, a step-strategy of such a scenario is a sequence of dependent choices of the next action. A strategy is a step-strategy together with selection functions for decision actions. The structure of a s...
معرفی پوچی گراف /رابطه ی بین پوچی و ساختار گراف/ بررسی طیف ضرب کرونا/ بررسی یک ضرب جدید و طیف آن/ بررسی پوچی گرافهای دارای رأس برشی محاسبه پوچی چند دسته از دندریمرها/پوچی گراف هایی با یک درخت آویزان/ محاسبه ی پوچی یک گراف تک دور با استفاده از عدد تطابقی آن/تعیین گراف هایی با پوچی ماکزیمم
To build a Bayesian network, one may directly construct a directed acyclic graph (DAG) based on causal relationship of the domain variables. However, it may be necessary in many applications to construct a DAG from conditional independencies (CIs). In this paper, we characterize CIs that can be represented by a perfect DAG and suggest an algorithm to construct such a DAG, provided that the give...
مقدمه: به دلیل وجود عوامل خطر فراوان و ریسک زیاد در مراکز صنعتی فرآیندی، از چندین لایه حفاظتی جهت کاهش خطر و ریسک استفاده می شود. تعیین سطوح یکپارچگی ایمنی برای سیستم های امنیتی مجهز به ابزار دقیق کمک می کند تا از ایمنی کلی فرآیند اطمینان حاصل شود. یکی از روش های تعیین سطح یکپارچگی ایمنی، ریسک گراف است. روش ریسک گراف علی رغم سادگی آن روشی کیفی و وابسته به نظرات شخصی متخصصان است. .روش کار: در ای...
Directed acyclic graph (DAG) models are popular tools for describing causal relationships and for guiding attempts to learn them from data. In particular, they appear to supply a means of extracting causal conclusions from probabilistic conditional independence properties inferred from purely observational data. I take a critical look at this enterprise, and suggest that it is in need of more, ...
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