Uncertainty-Based Map Matching: The Space-Time Prism and k-Shortest Path Algorithm
نویسندگان
چکیده
منابع مشابه
Uncertainty-Based Map Matching: The Space-Time Prism and k-Shortest Path Algorithm
Location-aware devices can be used to record the positions of moving objects for further spatio-temporal data analysis. For instance, we can analyze the routes followed by a person or a group of people, to discover hidden patterns in trajectory data. Typically, the positions of moving objects are registered by GPS devices, and most of the time, the recorded positions do not match the road actua...
متن کاملTruncating Shortest Path Search for Efficient Map-Matching
We study the problem of map-matching, or finding the route on a road network from a trace of noisy and sparse observed points, particularly when a huge number of points are given. The algorithms based on Hidden Markov Models (HMMs) are known to achieve high accuracy for noisy and sparse data but suffer from high computational cost. We find that the bottleneck of the HMM-based map-matching is in...
متن کاملThe Application of K–Shortest Path Algorithm in Multicast Routing
Abstract. There have been many heuristic algorithms finding multicast trees proposed over the past few years. The necessity for finding a better and more suitable algorithm is still a current and important challenge. The article presents a new multicast routing algorithm for finding a multicast tree in packet networks. The objective of the K-Shortest Path Multicast Algorithm (KSPMA) is to minim...
متن کاملK shortest path algorithms
This paper is focussed on algorithms to solve the k-shortest path problem. Three codes were described and compared on rand and grid networks using random generators available on http://www.dis.uniroma1.it/∼challenge9 Codes were also tested on the USA road networks available on the same URL address. One million paths were ranked in less than 3 seconds on random instances with 10 000 nodes and 10...
متن کاملA Landmark Algorithm for the Time-Dependent Shortest Path Problem
The shortest path problem is one of the most classical problem in combinatorial optimization problem which, given an edge-weighted graph and two vertices, asks to find a path between the two vertices of the minimum length. In this thesis, we consider a generalization of the shortest path problem in which the edge length is time-variable, which we call the time-dependent shortest path problem. T...
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: ISPRS International Journal of Geo-Information
سال: 2016
ISSN: 2220-9964
DOI: 10.3390/ijgi5110204