A. V. Reddy

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A Cube Index Model on multidimensional text database and effective study of Online Analytical Processing (OLAP) over such data had been experimented and found to provide good results. We had proposed a cube index model for unstructured text database derived from the text index structures. There are three kinds of hierarchies on it. They are term hierarchy(More)
Data mining techniques are applied in building software fault prediction models for improving the software quality. Early identification of high-risk modules can assist in quality enhancement efforts to modules that are likely to have a high number of faults. Classification tree models are simple and effective as software quality prediction models, and(More)
We propose a Vector quantization (VQ) based index cube model for content based image retrieval. VQ captures the pixel intensity and the spatial information of the image blocks. An indexing and retrieval algorithm is implemented and different similarity measures are evaluated with the precision and recall curves. It can be used for content based image(More)
In this paper, we explain a novel technique for using vector quantization (VQ) for large scale content based information retrieval of any type of images, not restricted to the compressed domain. The main problem with VQ is the size of the source vectors that is used to generate the global codebook, which represents all images in the database. We have(More)
In Bioinformatics, Planted (l, d)-Motif finding is an important and challenging problem, which has many applications. Generally, it is to locate recurring patterns in the promoter regions of co-expressed or co-regulated genes. As we can't expect the pattern to be exact matching copies owing to biological mutations, the motif finding turns to be an(More)
In bioinformatics, motif finding is one of the most common problems. It is to locate recurring patterns in the sequence of nucleotides or amino acids. The main difficulty of the problem is that the patterns are not exact matches owing to biological mutations. It is NP-complete. Within the literature many solutions have been provided for this challenging(More)
An image index model has been proposed that uses vector quantization (VQ) to index the images. This index structure uses the Hausdorff distortion (HD) to enable faster retrieval of images from an image database. The authors have compared the HD value with the Modified Hausdorff distance (MHD) and Encoding Distortion Distance (EDD). The results show higher(More)