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Reddy, A. V.
- Locally Global Codebook for Image Retrieval and Clustering Using Vector Quantization
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Authors
Affiliations
1 Department of Computer Applications, National Institute of Technology, Tiruchirappalli, IN
1 Department of Computer Applications, National Institute of Technology, Tiruchirappalli, IN
Source
ICTACT Journal on Image and Video Processing, Vol 2, No 4 (2012), Pagination: 397-404Abstract
In this paper, the incremental codebook generation process, which is a technique for representing a database of images as a single codebook, that captures the content of all the images is proposed. Vector quantization (VQ) is used for creating the codebook of the image. The main problem with VQ is the size of the training sequence that is used to generate the global codebook. This paper explains a method, where the local codebooks are generated for each image. Then, the locally global codebook for the images is computed from the local codebooks by the incremental process. In order to handle large number of images of similar classes, a new method of incrementally creating locally global codebook based on hierarchy of image classes is also explained. It gives an automated representation of the image database compared to the previous work of selecting a random set of representative images, to compute the global codebook. The locally global codebook is used to cluster the images using the encoding distortion. This codebook helps to match images, and retrieve images that are similar to it by comparing the encoding distortion. The precision and recall curve and mean average precision gives better results than the previous works. The classification error is reduced as the distortion is always the smallest for similar images.Keywords
Vector Quantization, Codebook Generation, Content Based Image Retrieval, Cube Index Model, Image Clustering.
- Performance Enhancement of Flow Shop Scheduling Using Data Mining
Abstract Views :166 |
PDF Views:0
Authors
Affiliations
1 National Institute of Technology, Trichirappalli, IN
2 National Institute of Technology, Warangal, AP, IN
1 National Institute of Technology, Trichirappalli, IN
2 National Institute of Technology, Warangal, AP, IN
Source
Manufacturing Technology Today, Vol 6, No 8 (2007), Pagination: 17-23Abstract
Data Mining aims at discovering knowledge consisting of rules describing properties of data. In this paper, the optimized schedules for a flow shop scheduling problem are generated by the metaheuristic methods. The optimal schedules are used to generate the training set by identifying the predictor attributes affecting the schedules. The classifier model is generated based on decision tree induction by discretising the data in the training set based on chi2 algorithm. The classifier model is tested by applying for the new set of problems. The optimized schedule is generated by the classifier model is comparatively equal to that of the scheduling done by the metaheuristic methods. The sees tool is used for performing the data mining classification. Thus the rules generated by the Data Mining classifier allows the production managers to easily take decisions regarding the flow shop scheduling based on various objective functions and constraints.- Formulation and Evaluation of Vilazodone Sublingual Tablets by using Lyophilization Technique
Abstract Views :188 |
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Authors
Affiliations
1 JNTUA, Ananthapuramu, Andhra Pradesh, IN
2 Anwarul Uloom College of Pharmacy, New Mallepally, Hyderabad, Telangana., IN
3 Adept Pharma and Bioscience Excellence, Balanagar, RR Dist., Telangana, IN
4 VEMU Institute of Technology, P. Kothakota, Chittoor, Andhra Pradesh, IN
1 JNTUA, Ananthapuramu, Andhra Pradesh, IN
2 Anwarul Uloom College of Pharmacy, New Mallepally, Hyderabad, Telangana., IN
3 Adept Pharma and Bioscience Excellence, Balanagar, RR Dist., Telangana, IN
4 VEMU Institute of Technology, P. Kothakota, Chittoor, Andhra Pradesh, IN
Source
Research Journal of Pharmacy and Technology, Vol 11, No 1 (2018), Pagination: 267-274Abstract
Vilazodone is approved for treatment of acute episodes of major depression (Major Depressive Disorder (MDD). It is a BCS Class - II drug, offer challenges in developing a drug product with adequate bioavailability. The aim of present investigation was to formulate and evaluate vilazodone sublingual tablets using poloxamer 407 as a carrier by lyophilized solid dispersion technique.The lyophilized solid dispersion of vilazodone prepared by poloxamer 407 (1:5) showed more than 85% drug release within 5 min, so it was used for the development of sublingual tablets by direct compression technique. The physicochemical, solid-state properties, dissolution behaviour of lyophilized solid dispersion as well as sublingual tablets were evaluated. Finally, the bioavailability studies of the prepared tablets were performed by sublingual administration to rabbits. The sublingual tablets showed a higher in vitrodis solution rate and bioavailability compared with the commercial tablets. It is evident from the results herein that the developed sublingual tablets provide a promising drug delivery system in drug development, owing to their excellent performance of a rapid onset of action and improved bioavailability.Keywords
Vilazodone, Lyophilization, Sublingual, Dissolution.References
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