定向边缘式挖掘常规航线,以从旅行轨迹中更好地识别交通模式
1Department of Information Science and Technology, Zhejiang Shuren University, Hangzhou, Zhejiang Province, P. R.China.
PloS one
|December 18, 2025
概括
本研究引入了一种分析GPS轨迹数据的新算法,以识别常规旅行路线和运输方式. 该方法显著提高了路线提取和模式识别的准确性,优于现有技术.
科学领域:
- * 计算科学与工程 * 计算科学与工程
- * 数据科学和分析
- * 运输科学 运输科学
背景情况:
- *轨迹分析对于理解用户运输行为至关重要.
- *现有的路线挖掘和运输模式识别方法在准确性和效率方面存在局限性.
- * 全球定位系统 (GPS) 轨迹数据为移动模式提供了丰富的见解.
研究的目的:
- *为GPS轨迹数据开发一个方向感知常规路线挖掘算法.
- *为了提高常规旅行路线提取和运输方式识别的准确性.
- *为分析复杂的用户移动模式提供强大的方法.
主要方法:
- *系统地处理GPS轨迹数据,包括预处理和停留区域检测.
- *通过路线聚类对异常轨迹进行细分,并提取频繁的定向边缘.
- * 整合停车率特征以区分运输方式 (例如,公共交通与私人车辆).
主要成果:
- * 与基于规则,CNN和DBSCAN方法相比,拟议的算法可显著降低平均绝对百分比误差 (MAPE) 56%,49%和32%.
- * 在常规路线提取和运输方式识别方面都表现出更高的准确性.
- *根据Geolife数据集验证,覆盖了208名用户的135万公里.
结论:
- *方向感知算法有效地构建用户的常规旅行路线,并识别运输方式.
- * 该方法在准确性方面比现有算法提供了实质性的改进.
- *为动态交通预测和个性化路线建议等应用提供了宝贵的支持.
相关概念视频
Profile Leveling and Cross Sections
2.3K
Profile leveling and cross-sections are surveying methods used to determine and document terrain elevations for infrastructure projects such as highways, railroads, canals, and pipelines. These methods provide data for earthwork planning and alignment of proposed routes. Profile leveling involves measuring elevations along a fixed line to create a vertical terrain profile. A surveyor sets up a leveling instrument at the benchmark (BM) and records a backsight (BS) to determine the...
2.3K
Design Example: Traverse Angle Computations
453
Traverse angle computations are a critical component of surveying, used to compute the internal angles within a closed traverse. A traverse consists of a series of connected lines forming a closed loop, often used for land boundary delineation or mapping. Calculating the internal angles ensures accuracy in the traverse geometry and is essential for checking survey data integrity.The process begins with known azimuths and bearings of the traverse sides. Internal angles at each vertex are...
453
Adjusting a Traverse
477
In the site survey of a four-sided traverse, internal angles are essential to ensure geometric accuracy. The survey revealed that the sum of the measured internal angles was 359 degrees and 48 minutes, which is 12 minutes less than the expected 360 degrees. This discrepancy signals an error likely arising from measurement inaccuracies during the fieldwork.To rectify this error, the adjustment process involved distributing the 12-minute shortfall equally across the four internal angles. By...
477
Design Example: Marking Boundaries of a Site Using a Compass
373
Marking site boundaries using a compass is a precise surveying technique that ensures the accuracy of boundary delineation. The process begins by using provided site details, including the bearings and lengths of each boundary line. The initial step involves calculating latitudes and departures for all sides of the site. This computation verifies that the traverse is free of errors, ensuring a closed and accurate boundary.The process starts at a known point, such as Point A, which is often...
373
Methods of Obtaining Topography
550
Topography involves measuring and mapping land elevations, natural features, and artificial structures to create accurate representations of the terrain. Topographic surveying relies on traditional and modern methods, each with distinct advantages and limitations.Traditional Surveying Methods:Transit stadia surveys and plane table surveys were widely used traditional surveying methods. These techniques relied on instruments like theodolites and stadia rods for measuring distances and angles,...
550
Design Example: Alignment of a Road Line Using GIS
471
The alignment of a road line using Geographic Information Systems (GIS) is a critical process in civil engineering, combining advanced technology with practical decision-making. This methodology begins with the collection of geospatial data, including information on land cover, geomorphology, drainage patterns, slope, and contour details. Such data is typically acquired through satellite imagery and GIS tools, offering a comprehensive understanding of the terrain.Once the data is gathered, it...
471


