نتایج جستجو برای: hierarchical binary tree
تعداد نتایج: 365730 فیلتر نتایج به سال:
While a tracking system is unaware of the identity of any object it tracks, the identity remains the same for the entire tracking sequence. Our system leverages this information by accumulating joint cooccurrences of the representations within the sequence. These joint co-occurrence statistics are then used to create a hierarchical binary-tree classification of the representations. This method ...
problem is known as bisecting divisive clustering. Note that by recursively using a divisive bisecting clustering procedure, the dataset can be partitioned into any given number of clusters. Interestingly enough, the clusters so-obtained are structured as a hierarchical binary tree (or a binary taxonomy). This is the reason why the bisecting divisive approach is very attractive in many applicat...
Most of the group key management schemes focus on reducing the update messages. Majority of the groups are dynamic in nature and large. To assuage the scalability problem, various key structures have been proposed. In dynamic multicast groups, key updates are complicated since group members join and leave at any time. Hierarchical tree structure is suitable for maintaining multicast group membe...
The purpose of this study is to identify and explain hierarchical structure of knowledge in basketball game that can be applied to the entire formal tree model in sport games with the ball. Structural approach was used in the analysis of knowledge in basketball game. Here knowledge is shown as a hierarchical structured binary tree. The basic categories of the tree in this hypothetical model fro...
In this work, an image representation based on Binary Partition Tree is proposed for object detection in hyperspectral images. This hierarchical region-based representation can be interpreted as a set of hierarchical regions stored in a tree structure, which succeeds in presenting: (i) the decomposition of the image in terms of coherent regions and (ii) the inclusion relations of the regions in...
1389-1286/$ see front matter 2012 Elsevier B.V http://dx.doi.org/10.1016/j.comnet.2012.04.014 ⇑ Corresponding author. Tel.: +82 2 3277 3403; fa E-mail address: [email protected] (H. Lim). Packet classification is one of the most challenging functions in Internet routers since it involves a multi-dimensional search that should be performed at wire-speed. Hierarchical packet classification is an ef...
A binary space partitioning (bsp) tree represents a recursive, hierarchical subdivision of d-dimensional space into convex subspaces. BSP trees provide a computational representation of space that provides both a search structure and a representation of geometry. Constructing a bsp tree consists of partitioning a subspace by means of a hyperplane, which intersects the interior of that subspace,...
This paper proposes a novel algorithm of hierarchical divisive clustering, which generates a multi-branch tree, not a binary one, as its output. In order to use the algorithm for clustering large document sets, a spherical kmeans clustering algorithm based on a cosine measure is adopted for partitioning recursively the document set from the top to bottom. Also, by selecting automatically the nu...
Conventional sentiment analysis usually neglects semantic information between (sub-)clauses, as it merely implements so-called bag-of-words approaches, where the sentiment of individual words is aggregated independently of the document structure. Instead, we advance sentiment analysis by the use of rhetoric structure theory (RST), which provides a hierarchical representation of texts at documen...
In this work we introduce a new hierarchical surface decomposition method for multiscale analysis of surface meshes. In contrast to other multiresolution methods, our approach relies on spectral properties of the surface to build a binary hierarchical decomposition. Namely, we utilize the first nontrivial eigenfunction of the Laplace-Beltrami operator to recursively decompose the surface. For t...
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