Visualization techniques of self-organizing maps

نویسنده

  • Frederico Fernandes
چکیده

Neural networks try, in a computing way, to simulate human brain, including its behavior, by making errors and learning and thereby making new discovers. Self-organizing maps are part of a neural network group based on competitive networks where competition is used as a way of learning. They try to find similarities between data, based only on input data, grouping similar data to each other and thereby forming clusters. Selforganizing maps learning it's unsupervised. It can adapt its behavior without any previous knowledge and also, without human intervention. The maps can make connections between the observations that were made and the expected result. Its result enables improvements in future decisions. The main point of this master thesis is the selforganizing maps speed improvement and a presentation of a possible way to visualize large dimensions maps, once the only way to do it, it's by getting to know if the learning process was achieved.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

MailSOM - Visual Exploration of Electronic Mail Archives Using Self-Organizing Maps

Systems for handling large electronic mail archives can leverage Information Visualization techniques to facilitate explorative data analysis. In this paper, we propose to use Self-Organizing Maps as an appropriate tool to manage large volumes of email in personal email archives.

متن کامل

EM Algorithms for Self-Organizing Maps

Self-organizing maps are popular algorithms for unsupervised learning and data visualization. Exploiting the link between vector quantization and mixture modeling, we derive EM algorithms for self-organizing maps with and without missing values. We compare self-organizing maps with the elastic-net approach and explain why the former is better suited for the visualization of high-dimensional dat...

متن کامل

Visualization of Object Oriented Software Measures using Self-Organizing Maps

Role of self-organizing maps in visualization and analysis of software measures is presented and discussed in this paper. We reveal how self-organizing maps can create a user-friendly and interactive visualization tool that helps software designer to inspect various alternatives and get a thorough insight into the structure of the clusters of the software modules and related metrics. We show ho...

متن کامل

Advanced visualization of Self-Organizing Maps with vector fields

Self-Organizing Maps have been applied in various industrial applications and have proven to be a valuable data mining tool. In order to fully benefit from their potential, advanced visualization techniques assist the user in analyzing and interpreting the maps. We propose two new methods for depicting the SOM based on vector fields, namely the Gradient Field and Borderline visualization techni...

متن کامل

ESOM-Maps: tools for clustering, visualization, and classification with Emergent SOM

An overview on the usage of emergent self organizing maps is given. U-Maps visualize the distance structures of high dimensional data sets. P-Maps show their density structures and U*-Maps combine the advantages of the mentioned maps to a visualization suitable to detect nontrivial cluster structures. A concise summary on the usage of Emergent Self-organizing Maps (ESOM) for data mining is give...

متن کامل

Document Clustering and Visualization with Latent Dirichlet Allocation and Self-Organizing Maps

Clustering and visualization of large text document collections aids in browsing, navigation, and information retrieval. We present a document clustering and visualization method based on Latent Dirichlet Allocation and self-organizing maps (LDA-SOM). LDA-SOM clusters documents based on topical content and renders clusters in an intuitive twodimensional format. Document topics are inferred usin...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2011