Long Tan

We don’t have enough information about this author to calculate their statistics. If you think this is an error let us know.
Learn More
In this paper, the hydraulic and heat-transfer properties of two sets of artificially fractured granite samples are investigated. First, the morphological information is determined using 3D modelling technology. The area ratio is used to describe the roughness of the fracture surface. Second, the hydraulic properties of fractured granite are tested by(More)
N-list and B-list have simply been proven to be highly effective for mining frequent itemsets. The main problem of the two novel structures is that they both need to encode each node of pre-order (or start order) and post-order (or finish order) code. This causes excessive memory consumption to mine frequent itemsets. In this paper, we propose SO-Sets based(More)
PPC-Tree and N-list have been proven to be very efficient and been used in mining frequent itemsets widely. The main problem of the novel structures is that the way of First Constructing Last Encoding method is adopted in the tree-building phase. This causes excessive time consumption to mine frequent itemsets. In this paper, we propose SFO-Set based on(More)
  • Long Tan
  • 2015
Because of the shortcomings of the traditional K-means algorithm which is sensitive to select the initial clustering centers and easy converges to local optimization, the paper proposes An Clustering K-means Algorithm Based on Improved the Particle Swarm Optimization Algorithm. The algorithm uses a powerful global search capability of the Particle Swarm(More)
  • 1