With the recent introduction of Spot Instances in the Amazon Elastic Compute Cloud (EC2), users can bid for resources and thus control the balance of reliability versus monetary costs. Mechanisms and tools that deal w...
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Collaborative Filtering (CF) is an important technique for recommendation systems which model and analyzes the preferences of customers for giving reasonable advices. Recently, many applications based on Restricted Bo...
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In order to address the visualized analysis on the multi-dimensional data, this demo paper designs and implements a visualization analysis tool, named as Bizard. Bizard encapsulates the underlying Hadoop Client or XML...
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Improper ordering of sentences in a summary can confuse the reader and deteriorate the readability of the summary. In this paper, we proposed five criterions: the logical-closeness, topical-closeness criterion, chrono...
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Improper ordering of sentences in a summary can confuse the reader and deteriorate the readability of the summary. In this paper, we proposed five criterions: the logical-closeness, topical-closeness criterion, chronology criterion, precedence criterion and succession criterion. We analyse the characteristic of logical-closeness and find the measure of it. We propose an improved agglomerative algorithm based on the five criterions. The experiments show that our method takes effect and is better than other automatic methods.
Classic rateless codes, such as Raptor codes and LT codes are long codes. But special applications such as data storage systems usually require short-length codes (a few hundred in size). In response to this demand, w...
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Classic rateless codes, such as Raptor codes and LT codes are long codes. But special applications such as data storage systems usually require short-length codes (a few hundred in size). In response to this demand, we propose a new construction method of short-length rateless codes. The generator matrix of our proposed coding scheme is a special 0-1 random matrix in which every element is valued independently and identically and has same probability to be valued 1. Based on the proposed short-length rateless codes, a new data redundancy scheme for distributed storage systems is also proposed. Theoretical analysis and numerical simulation show that our method is effective.
A Multiclass classifier is an approach for designing classifiers for an m-class (m>=2) problem using genetic programming (GP). In this paper we proposed two methods named Modified Crossover Method and a Point Mutat...
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Image sharpening is one of the key technologies about image recognition. The purpose of image sharpening technology is to strengthen the image edge and outline of the scenery. There have been many algorithms to be inv...
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Image sharpening is one of the key technologies about image recognition. The purpose of image sharpening technology is to strengthen the image edge and outline of the scenery. There have been many algorithms to be invented, such as gradient reinforcement method, Butterworth high-pass filter method, and image edge detection method based on Prewitt operator, Log operator and Canny operator. In this paper, a right method based on the features of image and the right values for parameters are proposed. Experiment shows that the proposed method has the advantage over other different methods.
Delay tolerant network (DTN) is a common, store-and-forward overlay designed, message-oriented, reliable architecture for high latency, low data rate network model. Because of high latency and low data rate, the tradi...
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Precision fruits system is based on new tools and sources of information provided by modern technologies, such as the global positioning systems (GPS), remote sensing (RS), geographic information system (GIS) and vari...
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In this paper, a nearest neighbor rule is applied to the clustering method based on one-class support vector machines. Although the traditional clustering method inspired the k-means clustering employs the kernel-base...
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