For any large-scale distributed system, both communication and data management distill down to the problem of resource discovery. Similarly, the geoweb needs a resource discovery service for users to find the relevant web services that providing data of interest. The Open GIS Consortium (OGC) recommends tackling the question by using Web Catalog Service (CS/W). However, the system provides only...

Abstract Background Upper gastrointestinal white light endoscopy is the most used procedure for assessing upper tract condition and identification of various types lesions. The characteristics lesions may influence subsequent treatment steps. Among these characteristics, size a lesion plays crucial role in determining surveillance interval, appropriate resection method predicting risk malignanc...

هدف: با توجه به اهمیت سرمایه­‌های انسانی سازمان و ویژه استعدادها عنوان مهم­ترین ابزار کسب مزیت رقابتی، هدف از انجام این پژوهش ارائه مدلی برای مدیریت استعداد در صنعت خودرو است.طراحی/ روش‌شناسی/ رویکرد: پژوهش، صورت ترکیبی اکتشافی (کیفی-کمی) شده است. فاز کیفی، اجزای یک مدل روش تحلیل تم شناسایی شد. کمی، اجزاء روابط استخراج استفاده مدلسازی معادلات ساختاری، مورد ارزیابی قرار گرفت تا متغیرهای مرتبط ار...

Enormous quantities of trajectory data are collected from many sources, as GPS devices and mobile phones, as sequences of points. These data can be used in many application domains such as traffic management, urban planing, tourism, and bird migration. However, in most applications a higher level of abstraction should be used instead of sample points. In this paper we present an extension of th...

Earth observation (EO) and simulation data share some core characteristics: they resemble raster data of some spatio-temporal dimensionality; the complete objects are extremely large, well into Teraand Petabyte volumes; data generation and retrieval follow very different access patterns. EO time series additionally share that acquisition/generation happens in time slices. The central standardiz...

Remotely sensed satellite data can provide spatial and temporal coverage for global environmental monitoring. Calibration and validation are very important for more accurate satellite products and can contribute to the detection of climate changes on earth. Calibration and validation of satellite products normally use both ground-based and satellite-based data, which have geospatial metainforma...

Many achievements in web-based geoprocessing focus on logically chaining Open Geospatial Consortium (OGC) web services, for example using Business Process Execution Language to orchestrate web services that are interfaced through the OGC Web Processing Service. For e-Science application in a sensor web environment, how to internally integrate the sensor system, observation, and processes (physi...

Environmental information and services have become a crucial asset in the creation of decission support systems. Unfortunately, this information and services are not usually exposed in an interoperable and standard way, limiting their reusability and impact in the community. Publishing and discovering geospatial information and services on the Web is therefore an important challenge in order to...

Achieving a flexible and efficient geospatial Sensor Observation Service (SOS) is difficult, given the diversity of sensor networks, the heterogeneity of sensor data storage, and the differing requirements of users. This paper describes development of a service-oriented multi-purpose SOS framework. The goal is to create a single method of access to the data by integrating the sensor observation...