Abstract Visualization is crucial for analyzing the turbulent combustion simulation. Time-varying data allows us to investigate evolution process of flow field. To study effects, we calculated enstrophy field since high region can display valuable features, and extract components based on these features. We isolated large track their behaviors characterized them using volume spatial locations, ...

We (ICTNET team) participated in Web Track of TREC2009, and in this paper, we summarize our work on Diversity task of Web Track, which is new in this year. The goal of the diversity task is to return a ranked list of pages that together provide complete coverage for a query, while avoiding excessive redundancy in the result list. For this task, we cluster the results of ad hoc task, and rerank ...

Algorithms for synchronous track-to-track fusion (T2TF) have been widely studied. For the optimal T2TF, it is critical to take into account the crosscovariances between tracks of the same target due to (i) the common process noise, and (ii) information feedback [2]. The optimal memoryless (without memory–“woM”) T2TF with no information feedback (T2TFwoMnf) was studied in [3], [11]. In [15], the...

In this thesis we generalise the notion of level planar graphs in two directions: track planarity and radial planarity. Our main results are linear time algorithms both for the planarity test and for the computation of an embedding, and thus a drawing. Our algorithms use and generalise PQ-trees, which are a data structure for efficient planarity tests. A graph is a level graph, if it has a part...

The problem of track-to-track association (T2TA)– a prerequisite for the fusion of tracks–has been considered initially in the literature for tracks described by kinematic states [1]. More recently, it has been generalized to include additional (continuous valued) feature and (discrete valued) attribute variables which pertain to those tracks.1 These approaches allow the search for the maximum ...