Identifying effective trajectory predictions under the guidance of trajectory anomaly detection model
نویسندگان
چکیده
Trajectory Prediction (TP) is an important research topic in computer vision and robotics fields. Recently, many stochastic TP models have been proposed to deal with this problem achieved better performance than the traditional deterministic trajectory outputs. However, these can generate a number of future trajectories different qualities. They are lack self-evaluation ability, that is, examine rationality their prediction results, thus failing guide users identify high-quality ones from candidate results. This hinders them playing best real applications. In paper, we make up for defect propose TPAD, novel evaluation method based on Anomaly Detection (AD) technique. firstly combine Automated Machine Learning (AutoML) technique experience AD field automatically design effective model. Then, utilize learned model predicted trajectories, screen out good results users. Extensive experimental demonstrate TPAD effectively near-optimal improving models’ practical application effect.
منابع مشابه
Trajectory Boundary Modeling of Time Series for Anomaly Detection
We address the problem of online detection of unanticipated modes of mechanical failure given a small set of time series under normal conditions, with the requirement that the anomaly detection model be manually verifiable and modifiable. We specify a set of time series features, which are linear combinations of the current and past values, and model the allowed feature values by a sequence of ...
متن کاملTrajectory Predictions in Mobile Networks
This paper proposes a mobility model and a neural location predictor (NLP) to predict the location of a mobile host (MH). The seemingly random movement is actually a logical function of the user’s position, speed, acceleration and direction. (x,y) of a coordinate should be treated independently such that NLP can be designed with fewer mathematic operations and achieves high computing efficiency...
متن کاملBézier Curve for Trajectory Guidance
In this paper we present two path planning algorithms based on Bézier curves for autonomous vehicles with waypoints and corridor constraints. Bézier curves have useful properties for the path generation problem. The paper describes how the algorithms apply these properties to generate the reference trajectory for vehicles to satisfy the path constraints. Both algorithms join cubic Bézier curve ...
متن کاملBig Trajectory Data Analysis for Clustering and Anomaly Detection
We’ve been developing a sensor that can acquire positional data. Recently, a position-based big data creation is easy task and trajectory analysis is the highest priority for ”position-based service”. Traffic congestion, marketing mining, and pattern analysis are the one of the examples in trajectory analysis field. In this paper, we propose the trajectory analysis approach for clustering and a...
متن کاملTrajectory Shape Analysis and Anomaly Detection Utilizing Information Theory Tools
In this paper, we propose to improve trajectory shape analysis by explicitly considering the speed attribute of trajectory data, and to successfully achieve anomaly detection. The shape of object motion trajectory is modeled using Kernel Density Estimation (KDE), making use of both the angle attribute of the trajectory and the speed of the moving object. An unsupervised clustering algorithm, ba...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Pattern Recognition
سال: 2023
ISSN: ['1873-5142', '0031-3203']
DOI: https://doi.org/10.1016/j.patcog.2023.109559