Experimental data for test the WPS tier and quality report: results of the quality control service

This dataset contains the results of the WPS tier and quality report presented in the thesis "Automatic evaluation of geospatial data quality using web services". The thesis' main goal was to develop a web service able to evaluate the quality of geospatial datasets using the standardized interface of Web Processing Service (WPS) in a fully automatic way. WPS is an open specification from the Open Geospatial Consortium (OGC) that defines an interface aiming to publish, use, discovery and binding geospatial processes. In the proposed architecture of the quality control service, the WPS tier plays the role of interface between clients and the evaluation procedures. This dataset contains the files used in the experiment to test the implementation of the WPS tier, which includes the quality reports. In order to test the WPS tier, we ran three essays, one for each service developed: (w1) topological consistency service, (w2) completeness service, and (w3) positional accuracy (planimetry) service. These services implement quality evaluation procedures described in the Brazilian standard of geospatial data quality, named CQDG (http://www.geoportal.eb.mil.br/). We tested these services using data from the matching testbed (https://www.nature.com/articles/sdata2017180). These essays are summarized in Fig_Overview_of_requests.png. The first essay, named W1, checked the topological consistency service. There are four requests: w1-01 to w1-04, with their correspondent responses. The W2 essay evaluated the implementation of the completeness service. This essay has four data inputs: (1) Test: the test dataset (matching testbed S7P); (2) Reference: the reference dataset (matching testbed B7P); (3) ScaleDenominator: the scale of test dataset, used in sampling (1:25,000); and (4) SamplingStrategy: the sampling strategy to be adopted when calculating the commission and omission rates. There are six requests: w2-01 to w2-06, with their correspondent responses. The last essay for the WPS tier, named W3, evaluated the implementation of the positional accuracy (planimetry) service, which accomplishes the automatic quality procedures for positional accuracy of planimetry in the Brazilian standard. The output values are: (1) CQDG:301: the value of quality category; (2) ER90: 90% percentile of planimetric errors; and (3) RMS: root mean square (RMS) of planimetric errors. They can be combined into a quality report in ISO 19157-2 XML format. There are 33 requests: w3-01 to w3-03, w3-040 to w3-049, w3-140 to w3-149, w3-240 to w3-249, with their correspondent responses. The first three requests used the dataset S1A (see matching testbed), and the last 30 requests used 10 datasets with random disturbance with a standard displacement of 5 m (see matching testbed).本数据集包含论文《基于Web服务的地理空间数据质量自动评估》中提出的WPS层级与质量评估报告结果。该论文的核心目标是开发一款Web服务，可通过Web处理服务（Web Processing Service, WPS）的标准化接口，以全自动化方式完成地理空间数据集的质量评估。WPS是开放地理空间联盟（Open Geospatial Consortium, OGC）制定的开放规范，定义了用于发布、使用、发现及绑定地理空间处理流程的接口标准。在本次提出的质量控制服务架构中，WPS层级承担了客户端与评估流程之间的接口角色。本数据集包含了用于测试WPS层级实现的实验所用文件，其中涵盖质量评估报告。 为测试WPS层级，我们开展了三项实验，分别对应开发的三项服务：(w1) 拓扑一致性服务、(w2) 完整性服务，以及(w3) 平面位置精度服务。这些服务实现了巴西地理空间数据质量标准CQDG（http://www.geoportal.eb.mil.br/）中规定的质量评估流程。我们采用匹配测试床（https://www.nature.com/articles/sdata2017180）的数据对各项服务进行了测试。各项实验的概况汇总于Fig_Overview_of_requests.png中。 第一项实验命名为W1，用于测试拓扑一致性服务，共包含w1-01至w1-04四项请求及对应的响应结果。 第二项实验W2用于评估完整性服务的实现。该实验包含四项数据输入：(1) 测试集：测试数据集（匹配测试床S7P）；(2) 参考集：参考数据集（匹配测试床B7P）；(3) ScaleDenominator：测试数据集的比例尺分母，用于采样计算（1:25,000）；(4) SamplingStrategy：计算漏检率与误检率时采用的采样策略。该实验共包含w2-01至w2-06六项请求及对应的响应结果。 最后一项针对WPS层级的实验命名为W3，用于评估平面位置精度服务的实现，该服务可执行巴西标准中规定的平面位置精度自动质量评估流程。其输出指标包括：(1) CQDG:301：质量类别数值；(2) ER90：平面位置误差的90%分位数；(3) RMS：均方根误差（Root Mean Square, RMS）。上述结果可整合为符合ISO 19157-2 XML格式的质量报告。该实验共包含33项请求：w3-01至w3-03、w3-040至w3-049、w3-140至w3-149、w3-240至w3-249，及对应的响应结果。其中前三项请求使用数据集S1A（详见匹配测试床），剩余30项请求使用了10组带有随机扰动的数据集，扰动的位移标准差为5米（详见匹配测试床）。