1. Zhao, L., Shi, G.: A method for simplifying ship trajectory based on improved Douglas-Peucker algorithm. Ocean Eng. 166, 37–46 (2018)
2. Li, X., et al.: Feature extraction algorithm in consideration of the trend changing of track. J. Comput. Aided Des. Comput. Graph. 28(8), 1341–1349 (2016)
3. Qiao, S.J., et al.: A trajectory feature extraction approach based on spatial coding technique. Sci. Sin. Inform. 47, 1523–1537 (2017). https://doi.org/10.1360/N112017-00008
4. Wu, Q.Y., Wu, Z.F., Zhang, L.P.: A road geometric feature extraction method based on taxi trajectory data. CN108776727A (2018.11.09)
5. Zhu, L., et al.: Study on spatial-semantic trajectory based GPS track behavior signature detection. Comput. Appl. Softw. 31(4), 72-74+87 (2014)