We propose an automatic algorithm, named SDI, for the segmentation of skin lesions in dermoscopic images, articulated into three main steps: selection of the image ROI, selection of the segmentation band, and segmentation. We present extensive experimental results achieved by the SDI algorithm on the lesion segmentation dataset made available for the ISIC 2017 challenge on Skin Lesion Analysis ...

Mục tiêu: Đánh giá bộ mẫu ngoại kiểm định lượng HBV-DNA trong huyết tương đông khô bằng 06 phương pháp xét nghiệm được đơn vị sử dụng chương trình kiểm. Phương nghiên cứu: Nghiên cứu cắt ngang trên các chứa thực hiện tại Đơn tham gia 6 thông dụng. Kết quả: Định 168 ở nồng độ khác nhau cho kết quả 166 có chỉ số lệch chuẩn (SDI) mức chấp nhận (|SDI|<2), 1 thuộc lô S4 2<|SDI|<3 và S6 SDI ...

In order to forecast the geological disaster, a forecasting model of geological disasters in Hefei area has been established. The model is based on raster data model. Because that the data from local SDI are vector data, some pretreatment must be done before they are used in the forecasting model. Some data, such as geological data, meteorological data and precipitation, has been translated int...

This research project was one of a number concerned with mechanized information retrieval carried out at INSPEC and supported by grants from, originally, the Department of Education and Science's Office for Scientific and Technical Information (OSTI) and, later, the British Library Research and Development Department (BLRDD). The first project, in the period 1967-69, had investigated the perfor...

Metadata are "data about data", that is to say, they describe the content, quality, condition, and other characteristics of data in order to help a person to locate and understand data. Nevertheless, maybe one of the main problems for launching a Spatial Data Infrastructure (SDI) is to have appropriate and well-defined contents for its catalogues, that is to say metadata. The creation of metada...

Technological development and increasing awareness of geodata and its use has caused an explosion of digital content. However, this was not accompanied by dissemination and accessibility measures. Spatial Data Infrastructures (SDIs), allowing extensive reuse of geoinformation, may offer a solution. SDIs face organisational, technological, legal, cultural and linguistic challenges. The enrichmen...

The role that the development of Spatial Data Infrastructure initiatives is playing within the modern world is changing. Initially SDIs were implemented as a mechanism to facilitate access and sharing of spatial data hosted in distributed GISs. Users however now require precise spatial information in real time about real world objects and the ability to develop and implement cross-jurisdictiona...

Building on abstract reference models, the Open Geospatial Consortium (OGC) has established standards for storing, discovering, and processing geographical information. These standards act as basis for the implementation of specific services and Spatial Data Infrastructures (SDI). Research on geo-semantics plays an increasing role to support complex queries and retrieval across heterogeneous in...

Spatial Data Infrastructure (SDI) is an important concept for sharing spatial data across the web. With cumulative techniques with spatial cloud computing and fog computing, SDI has the greater potential and has been emerged as a tool for processing, analysis and transmission of spatial data. The Fog computing is a paradigm where Fog devices help to increase throughput and reduce latency at the...