Trajectory grouping structure

K Buchin, M Buchin, M van Kreveld… - … and Data Structures, 2013 - Springer
trajectories of these entities, we define and model a structure … We present the first complete
study of trajectory group evolve… Secondly, we consider the grouping structure at continuous …

Trajectory grouping structure under geodesic distance

I Kostitsyna, M van Kreveld, M Löffler… - 31st International …, 2015 - drops.dagstuhl.de
trajectory grouping structure. Significantly extending the work of Buchin et al. [WADS 2013]
into a realistic setting, we show that the trajectory grouping structure … be in one group. In case …

Group-based trajectory modeling: an overview

DS Nagin - Handbook of quantitative criminology, 2010 - Springer
… Unconditional models estimate two key features of the population distribution of trajectory
parameters – their mean and covariance structure. The former defines average growth within …

Trajectory clustering: a partition-and-group framework

JG Lee, J Han, KY Whang - Proceedings of the 2007 ACM SIGMOD …, 2007 - dl.acm.org
trajectories from a trajectory database. Based on this partition-and-group framework, we
develop a trajectory … Our algorithm consists of two phases: partitioning and grouping. For the first …

Group-based trajectory modeling in clinical research

DS Nagin, CL Odgers - Annual review of clinical psychology, 2010 - annualreviews.org
… For those conducting group-based analyses in a structural equation modeling framework,
we also recommend a review of reporting guidelines and principles summarized by McDonald …

Trajectory grouping with curvature regularization for tubular structure tracking

L Liu, D Chen, M Shu, B Li, H Shu… - … on Image Processing, 2021 - ieeexplore.ieee.org
… two trajectories which likely belong to the same tubular structure. … trajectories, especially
when extracting long structures. In … gap between two neighbouring trajectories using a curvature-…

A survey on trajectory clustering analysis

J Bian, D Tian, Y Tang, D Tao - arXiv preprint arXiv:1802.06971, 2018 - arxiv.org
… Existing trajectory clustering methods can be grouped into three categories: unsupervised, …
Furthermore, DNN keeps the structural relationships between trajectories in [128], and mines …

TraClass trajectory classification using hierarchical region-based and trajectory-based clustering

JG Lee, J Han, X Li, H Gonzalez - Proceedings of the VLDB Endowment, 2008 - dl.acm.org
… At the final stage of the grouping phase, a model called a representative trajectory, which is
… , TraClass uses a multi-resolution grid structure, which quantizes the domain space into a …

Group diagrams for representing trajectories

M Buchin, B Kilgus, A Kölzsch - Proceedings of the 11th ACM …, 2018 - dl.acm.org
… As such the grouping structure is well suited for grouping entities moving together, but not …
form a group in the grouping structure, even though individual commuters in this group may be …

Action recognition using discriminative structured trajectory groups

I Atmosukarto, N Ahuja… - 2015 IEEE Winter …, 2015 - ieeexplore.ieee.org
… instances with latent class variables; iii) We design a graph kernel from spatio-temporal
structure … (2) where gia is the mean group position for trajectory group a for video i, similarly for …