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首页> 外文期刊>Canadian Journal of Mathematics >Testing the Spatial Accuracy of Address-Based Geocoding for Gunshot Locations
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Testing the Spatial Accuracy of Address-Based Geocoding for Gunshot Locations

机译:测试基于地址的地理编码的空间准确性,用于枪声位置

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摘要

We assess the positional accuracy of address-based geocoding of shooting incidents relative to the location recorded via acoustic gunshot detection technology. This provides a test of the accuracy of typical address-based geocoding methods used in crime analysis, as well as evidence for how much accuracy one gains when using sensors. Examining more than 1,000 shooting incidents in Wilmington, North Carolina, we find that the majority of address-based incidents are quite accurate, on average within 60 feet of the actual location (using a street centerline geocoder) or within 90 feet (using Google rooftop geocoding). Based on the incident narrative, however, we identify a subset of transcription errors in over 10 percent of the cases that increases the distance between the true shooting location and that geocoded using address data. This suggests that mechanisms to prevent human errors might be more frugal than those relying on sensors in geocoding shooting incidents.
机译:我们评估了相对于通过声学枪门检测技术记录的位置的拍摄事件的地理地理编码的位置准确性。 这提供了在犯罪分析中使用的基于典型地址的地理编码方法的准确性的测试,以及使用传感器时一个增益的准确性的证据。 在北卡罗来纳州威尔明顿检查了1000多人射击事件,我们发现大多数基于地址的事件都是非常准确的,平均在实际位置的60英尺范围内(使用街道中心线地理域)或90英尺(使用Google Rooftop 地理编码)。 然而,根据事件叙述,我们确定超过10%的转录错误子集,这些情况增加了真正的拍摄位置与使用地址数据的地理编码之间的距离。 这表明防止人类错误的机制可能比依赖地理划分射击事件中的传感器更节俭。

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