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072-31
072-31

... From a data analysis point of view this results in the creation of a data set that contains a large number of fields that may be associated with the warranty target field. In this case, the fields are the scale-weighted frequencies of terms that are associated with the target warranty code. Because ...
Data Representation Methods
Data Representation Methods

... are true and false. • The complement of a boolean variable x is denoted x. • A literal is a boolean variable or the complement of a boolean variable. • A clause is the logical or of two or more literals. • Let x1, x2, x3, …, xn be n boolean variables. ...
The Necessity of MetaBias in MetaHeuristics.
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ppt - TAMU Computer Science Faculty Pages

... Least square and robust estimator (initialization) treat inliers and outliers equally, as a whole. Robust estimator tries to extract the outliers in the later iteration, while fitting inliers and extracting outliers should be in the same process. Why not randomly choose data subset to fit – RANSAC. ...
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... - Neurons become less dependent on output of connected neurons. - Forces network to learn more robust features that are useful to more subsets of neurons. - Like averaging over many different trained networks with different random initializations. - Except cheaper to train. [Nielson] ...
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Deep Learning - UCF Computer Science

... • Some (a half of) neurons in a fully connected layer become inactive whose outputs will not participate in the forward pass and backpropagation. • Every time a neural network with reduced complexity is generated to process the input signals forwards, or updated by backpropagation. ...
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... hypothesis fro each element in the test set. One way to get around this is to construct different hypotheses for each test example. Potentially better results, but more computation needed at evaluation time. We can use this in either a supervised or unsupervised setting. ...
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Bayesian Challenges in Integrated Catchment Modelling

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Rachel Greenstadt Department of Computer Science Drexel

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Introduction to Bayesian Networks A Three Day Tutorial

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Problems with computational methods in population

... using the sophisticated theory and technology now available. Since these methods are likely to be widely applied by people who are not experts in computational statistics, it is particularly important to develop methods which are easily used to produce reliable results. This piece aims to describe o ...
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Quo vadis, computational intelligence

... with high level cognition, dealing with such problems as understanding of language, problem solving, reasoning, planning and knowledge engineering at the symbolic level. Knowledge has complex structure, the main problems are ...
Quo vadis, computational intelligence?
Quo vadis, computational intelligence?

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Pattern recognition

Pattern recognition is a branch of machine learning that focuses on the recognition of patterns and regularities in data, although it is in some cases considered to be nearly synonymous with machine learning. Pattern recognition systems are in many cases trained from labeled ""training"" data (supervised learning), but when no labeled data are available other algorithms can be used to discover previously unknown patterns (unsupervised learning).The terms pattern recognition, machine learning, data mining and knowledge discovery in databases (KDD) are hard to separate, as they largely overlap in their scope. Machine learning is the common term for supervised learning methods and originates from artificial intelligence, whereas KDD and data mining have a larger focus on unsupervised methods and stronger connection to business use. Pattern recognition has its origins in engineering, and the term is popular in the context of computer vision: a leading computer vision conference is named Conference on Computer Vision and Pattern Recognition. In pattern recognition, there may be a higher interest to formalize, explain and visualize the pattern, while machine learning traditionally focuses on maximizing the recognition rates. Yet, all of these domains have evolved substantially from their roots in artificial intelligence, engineering and statistics, and they've become increasingly similar by integrating developments and ideas from each other.In machine learning, pattern recognition is the assignment of a label to a given input value. In statistics, discriminant analysis was introduced for this same purpose in 1936. An example of pattern recognition is classification, which attempts to assign each input value to one of a given set of classes (for example, determine whether a given email is ""spam"" or ""non-spam""). However, pattern recognition is a more general problem that encompasses other types of output as well. Other examples are regression, which assigns a real-valued output to each input; sequence labeling, which assigns a class to each member of a sequence of values (for example, part of speech tagging, which assigns a part of speech to each word in an input sentence); and parsing, which assigns a parse tree to an input sentence, describing the syntactic structure of the sentence.Pattern recognition algorithms generally aim to provide a reasonable answer for all possible inputs and to perform ""most likely"" matching of the inputs, taking into account their statistical variation. This is opposed to pattern matching algorithms, which look for exact matches in the input with pre-existing patterns. A common example of a pattern-matching algorithm is regular expression matching, which looks for patterns of a given sort in textual data and is included in the search capabilities of many text editors and word processors. In contrast to pattern recognition, pattern matching is generally not considered a type of machine learning, although pattern-matching algorithms (especially with fairly general, carefully tailored patterns) can sometimes succeed in providing similar-quality output of the sort provided by pattern-recognition algorithms.
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