Article history: Received 8 December 2011 Received in revised form 24 May 2012 Accepted 26 September 2012 Available online 6 October 2012

DEFINITION Given a semi-structured data set D, a path query identifies nodes of interest by specifying the path lead to the nodes and the predicates associated with nodes along the path. The path is identified by specifying the labels of the nodes to be navigated and structural relationship (parent-child or ancestor-descendant) among the nodes. A predicate can be a path query itself, relative t...

investigation of soil properties like cation exchange capacity (cec) plays important roles in study of environmental reaserches as the spatial and temporal variability of this property have been led to development of indirect methods in estimation of this soil characteristic. pedotransfer functions (ptfs) provide an alternative by estimating soil parameters from more readily available soil data...

We introduce a statistical model for microarray gene expression data that comprises data calibration, the quantification of differential expression, and the quantification of measurement error. In particular, we derive a transformation h for intensity measurements, and a difference statistic Deltah whose variance is approximately constant along the whole intensity range. This forms a basis for ...

According to the sensing principle of coded structured light, and the characteristics of broad complication and high parameters request, a new coded structured light mathematics model and measurement method is proposed, which can simply and quickly obtain depth information of targets. Model is simulated by computer. It can gain the offset and deformation of pattern images based on different mod...

this study has two main purposes including examining the structural model of leadership stereotype, leadership competency, and achievement motivation in leadership role and investigating the moderating effects of gender on the overall model. using a sample of 303 extension agents from three jihad-e-agriculture organizations of tehran, kermanshah, and khorasan razavi provinces in iran, we conduc...

Recent study of complex graphs has revealed that not all of them are made equal. Man-made and naturally-formed graphs exhibit structural regularity and have common degree distributions that differ a great deal from the random graphs of Erdos-Renyi. A coincident discovery, made in the machine learning community, is that several multivariate prediction problems can be solved with greater accuracy...

introduction: feedback cards are recommended as a feasible tool for structured written feedback delivery in clinical education while effectiveness of this tool on the medical students’ performance is still questionable. the purpose of this study was to compare the effects of structured written feedback by cards as well as verbal feedback versus verbal feedback alone on the clinical performance ...

This paper aims at investigating the integration of structured data into a semi-structured environment. In particular, it introduces the Cyclic Structure Converter (CSC) system that performs this task. In CSC, correspondence assertions and integration rules provide the adequate intelligence to reconcile the (possible) heterogeneous semantics relative to involved information sources. CSC has als...