edge detection in biomedical images using self organizing maps

... to date concerning the detection of pigment network are described thereupon In[36], Fleming et al carry out the detection of the pigment network using the Steger curvilinear lines detection algorithm ... tested with 106 images, obtaining 95.4% accuracy in the detection of APN This is an interesting method in the detection of APN, however it does not deal with the problem of discerning between“Pigment ... the origin in this cause In [39], Grana et al undertake the detection of the pigment network using Gaussian derivative kernels for the detection of the net edges and by means of Fisher linear discriminant

Ngày tải lên: 01/11/2022, 09:47

... group documents or terms into meaningful clusters Topic modeling, on the other hand, focuses on finding coherent keywords for describing topics appearing in a set of documents In addition, there have ... resulting in the final set of 159,676 themes, each containing 10 or more documents Under the current settings, a total time spent for com-puting themes is 25.4 h (22.6 h for comcom-puting initial ... SVD-based latent semantic indexing [19] Two models that combine document clustering and topic modeling are the clus-tering topic model, CTM [20], and multigrain clustering topic model, MGCTM [15],

Ngày tải lên: 25/11/2020, 14:04

... Core-point detection based on edge maps in fingerprint images J Electron Imaging 2009;18(1):1–4 [22] Mohammadi S, Farajzadeh A Reference point and orientation detection of fingerprints In: Second international ... fingerprints classification and uses, Federal Bureau of Investigation; 2006. [15] Weng D, Yin Y, Yang D Singular point detection based on multi-resolution in fingerprint images Neurocomputing 2011;74: ... novel algorithm for detecting singular points from fingerprint images IEEE Trans Pattern Anal Mach Int 2009;31(7):1239–50. [20] Le T, Van H Fingerprint reference point detection for image retrieval

Ngày tải lên: 02/11/2022, 10:47

... when using K Nearest Neighbors in original Paysim (a(AS€(L à n1 H111 re 58Table 4.25: The Result when using LR in original Paysim dataset 60Table 4.26: The Result when using SVM in original ... when using LR in original Credit Card dataset 32Table 4.8: The Result when using SVM in original Credit Card dataset 33Table 4.9: The result when running KNN with balanced Credit Card dataset usingRandom ... precision and working with the fraudulentinspected cases - Operational Efficiency: The data-driven system is built in a combination of various domains including machine learning, deep learning, mathematics

Ngày tải lên: 02/10/2024, 03:58

... 2002 Haykin S., Self-organizing maps, Neural networks - A comprehensive foundation, 2nd edition, Prentice-Hall, 1999 Kohonen T., Self-Organizing Maps, Third, extended edition, Springer, 2001 ... partials and incomplete Results reported in the literature and examined in this paper were also obtained considering a medium degree of dynamism, but by modifying the instance by hand, by treating demands ... adding to the classical objective and constraints of the standard VRP a supplementary objective which consists of minimizing the average customer waiting time In a dynamic setting the waiting

Ngày tải lên: 20/06/2014, 07:20

... the drainage basin given in m. 3 Perimeter of the drainage basin (Pb) The length of the basin border measured in km. 4 Total length of the channels within the drainage basin (Lc) Measured in km ... dynamics The inherent power of self organizing maps to conserve the complexity of the systems they model and self–organize their internal structure was employed, in order to improve knowledge in the ... An index of basin ruggedness (Melton, 1965, Church and Mark, 1980) calculated by the following formula: M=RbAb-0.5 8 Drainage basin slope (Sb) Obtained using the following equation : 10 Drainage

Ngày tải lên: 20/06/2014, 07:20

... logical decisions using the knowledge from the knowledge base and information from the data base Forward chaining and backward chaining are two popular reasoning mechanisms used by the inference mechanism ... through the previous training patterns The most popular architecture for unsupervised learning is the self-organizing map, which is discussed next 3.3 Self-Organizing Maps 3.3.1 Introduction The ... be trained with successive input patterns Contrast that with an unsupervised learning rule, where the training set consists only of input training patterns Here the network is being trained without

Ngày tải lên: 16/10/2015, 11:58

... clusters in the beginning and 4ne-grained input discrimination towards the end of the learning process In combining these principles ofSOMtraining, we may write the learning rule as given in Expression ... requirements within a single model In this paper we present the growing hierarchical self-organizing map (GHSOM), a neural network model based on the self-organizing map The main feature of this ... within the framework of SOM usage In order to overcome these two limitations of self-organizing maps we propose a novel neural network architecture, i.e the growing hierarchical self-organizing

Ngày tải lên: 16/01/2018, 15:25

... Effect of Training Data Size In order to allow for rapid examination of multi-ple feature combinations, we restricted the size of the training set (S) to maintain manageable train-ing times With ... identifying semanti-cally inconsistent error words In the future, we plan to continue improving our system by considering smarter trainable combina-tion techniques and by separating the training ... this assumption by taking the best-performing feature sets from Table 5 and training new models using twice the training data {S=4000} The results are shown in Table 6 In each case, the improvements

Ngày tải lên: 17/03/2014, 00:20

... supervised Initially, the rubber was only planted in state farms according to regulations concerning altitude, Trang 23the smallholders received training in planting, maintaining and tapping the ... to an overall price increase The price increase displayed in Figure 1 is mainly due to an increased oil price and an increased demand for rubber in Asia, but especially in China Figure 2 shows ... and income diversification of the farmers are mainly unknown Historically, heavy governmental promotion of rubber already occurred in the Chinese province Yunnan bordering with Laos Beginning in

Ngày tải lên: 17/03/2014, 11:20

... spiralling patterns abound — one wall drawing e.g shows a Karman vortex street — displaying that swirling water inspired the inhabitants of the place [11] Water certainly was central in Minoan ... the Institute of Technology in Stuttgart in 1952 [31] One of the objectives of these experiments was to investigate the possibility of using different kinds of pipes with rotating water, in order ... 3Modelling Tools In this chapter we will try to define some theoretical tools and models that can be useful for addressing problems with self-organizing flow, or more generally, for focusing on

Ngày tải lên: 04/06/2014, 12:43

... is typical of a group of similar input vectors defining a cluster Both the clusters and the associated prototypes are obtained using a specific learning or training algorithm All classifiers are ... step all the input vectors are included in the training set, except for one It serves to test the classifier when its training is finished This procedure is repeated so that each input vector ... recently in the framework of ATR using feature vectors extracted from ISAR images This classifier, called SART (supervised ART), has the structure of a self-organizing neural network and com-bines

Ngày tải lên: 22/06/2014, 23:20

... Assignment in Open Source Software Development using Self- Organizing Development using Self- Organizing Maps Open Source SoftwareMaps 67 67 Table Reference vector 68 68 Self Organizing Maps - Applications ... Assignment in A Method for Project Member Role Assignment in Open Source Software Development using Self- Organizing Development using Self- Organizing Maps Open Source SoftwareMaps 65 65 66 66 Self Organizing ... Assignment in A Method for Project Member Role Assignment in Open Source Software Development using Self- Organizing Development using Self- Organizing Maps Open Source SoftwareMaps 63 63 Results We defined...

Ngày tải lên: 28/04/2014, 10:14

... Colorfulness Measuring the brightness using a light meter and a gray card, controlling the exposure using the aperture and shutter speed settings, and darkroom printing with dodging and burning are basic ... example in Fig 2, loneliness is depicted using a man in the frame, increasing its appeal, while the lack of the person makes the photograph uninteresting and is likely to cause poorer ratings from ... former eliminates irrelevant features before training the classifier, the latter chooses features using the classifier itself as an integral part of the selection process In this work, we combine these...

Ngày tải lên: 07/03/2014, 17:20

... possible intensity changes In [14], using numerical optimization, optimal operators are preliminary derived for ridge and roof edges, and then specialized for step edges In [15], the edge detection ... statistical inference problem Other interesting approaches to edge detection, especially for noisy information fusion scenarios, are proposed in [16, 17] In [18], we have proposed a preliminary analytical ... Sastry, “Distributed environmental monitorning using random sensor networks,” in Proceedings of the 2nd International Workshop on Information Processing in Sensor Networks, pp 582–592, Palo Alto,...

Ngày tải lên: 21/06/2014, 17:20

... using communications when needed (communicative) and using redundant computations to reduce communications (independent), obtaining similar results in both cases Here, the processing time using ... results have indicated that using just one GPU we can obtain parallel performance results which are equivalent to those obtained using tens of nodes in a cluster, thus significantly reducing the weight ... nodes in the system are running In general terms, the maintenance costs for a cluster with P processing nodes is similar to the maintenance costs for P independent machines However, the maintenance...

Ngày tải lên: 21/06/2014, 18:20

... Multiplexed detection of proteins in cell lysate using high-density microarrays (a) Cyclic voltammogram of an individual microelectrode protected with an mPEG protein-inhibiting layer (black line), ... the introduction of a single cysteine residue at the amino terminus, enabling attachment to gold electrodes via S-Au bonds (see [26] for further details) This cysteine residue is the only cysteine ... by insertion of oligonucleotides encoding the CDK-interacting peptide sequences derived from the thioredoxin-based peptide aptamers of Colas et al [17] into restriction sites in the open reading...

Ngày tải lên: 06/08/2014, 18:21

... Sciences and Engineering and the Systems Biomedicine Graduate program for financial support Author details Centre for Process Systems Engineering, Department of Chemical Engineering, University ... modularity is defined as the fraction of all edges that lie within communities minus the expected value of the same quantity in a graph in which the vertices have the same degrees but edges are placed ... for module detection that is capable of handling large size networks and (ii) incorporating strategies for dealing systematically with the problem of a resolution limit in module detection through...

Ngày tải lên: 12/08/2014, 17:20

... create a mapping for this window using histogram equalization technique Interpolate green layer mappings in order to assemble final image For each window Extract four neighboring mapping functions ... map the input pixel green layer intensities to output green layer intensities In order to eliminate artificially induced boundary, input image is divided into 64x64 partially overlapping windows ... image into windows of size 64x64 NumRows=M/64; 39 NumCols=N/64 Process each window using histogram equalization a) extract a 64x64 window b) make a histogram for this window using 256 bins c)...

Ngày tải lên: 02/10/2015, 12:56

... of an object, a post processing step is required, which is called edge linking The simplest approach of edge linking is to examine the neighboring edge pixels If the edges have similar magnitude ... the input pixel) we superimpose the structuring element on top of the input image so that the origin of the structuring element coincides with the input pixel coordinates If for every pixel in ... then a link can be established between these two edges Generally speaking, edge linking is quite computationally expensive and not very reliable One solution is to make the edge linking semiautomatic...

Ngày tải lên: 05/10/2015, 21:23