Sajjad Fouladvand

39 Questions 82 Answers 0 Followers

Questions related from Sajjad Fouladvand

I have an accepted paper in a conference. They will published papers in a volume by IEEE Press as post-proceedings. What exactly is a post-procedeeng?

I have an accepted paper in an international conference. They are going to published all accepted papers in a volume by IEEE Press as post-proceedings. What exactly is an IEEE...

05 May 2015 9,304 1 View

Any advice on detection and molecular classification of birds using molecular detector DNA Barcoding ?

I'm intrigued if there exist a way to do this project "Detecting and molecular classification of lightweight birds using a molecular detector DNA Barcoding" using pattern recognition and machine...

03 March 2015 8,763 3 View

What is the bests ways for getting a high score in GRE exam?

I've read 504 words, essential words for toefl and1100 words. I'm going to take the GRE exam in 7 or 8 month (I just wanna apply for fall 2016 and so I guess I'd better take the exam in 7 or 8...

12 December 2014 3,584 2 View

How can we use Cross Validation methods for both parameter optimization and error evaluation simultaneously?

I want to build a machine learning model and unfortunately I have a limit and small number of samples for both training and testing phase. I've always used a validation set for parameter...

12 December 2014 8,181 10 View

I'm creating a data set for machine learning tasks. How should I decide on the number of samples in the data set?

I'm gathering data and trying to generate a data set. I'm wondering how should I decide on the number of samples. How many samples should be measured. Besides, any other recommendation about...

11 November 2014 6,368 18 View

What are the best methods for discretization of continuous features?

I'm looking for a strong method to discretization of continuous features. I prefer implemented methods with prepared libraries or functions. Thanks in advanced

11 November 2014 695 13 View

Does anybody know an ISI journal with quick process in the area of natural computing, artificial immune systems, biologically inspired algorithm?

I'll appreciate if somebody introduces me a good ISI journal with quick process time. My paper is in the field of artificial immune system, biologically inspired algorithm, natural computing,...

11 November 2014 9,935 2 View

Which are the most efficient feature selection methods for one-class classification problems?

I want to rank features in a one-class classification problem. I'm looking for proper feature selection methods for one-class classification problems. Thanks in advance.

10 October 2014 4,125 17 View

How should we deal with the lack of training data in a machine learning task?

I want to work on a machine learning and pattern recognition task, but the size of data set is small and there are only 43 samples for both training and testing purposes. How about the bagging...

10 October 2014 4,878 15 View

What are the most interesting application of image processing, machine learning and pattern recognition in medicine these days?

Image Processing and machine learning concepts has been widely used in medicine. I'm going to work on the use of Artificial Intelligence techniques (preferably image processing and machine...

09 September 2014 803 5 View

Do you know any ISI journal related to pattern recognition, machine learning, signal processing and natural computing ?

I'll appreciate if you inform me about journals with a short reviewing process at most 7 or 8 month. Thanks in advanced

06 June 2014 5,159 1 View

What is a good start to do a good research?

I’m eager to start a research in the field of Machine learning and Image Processing (especially Gaussian process, GMM). I'm wondering how should I start my quest. How can I find a professor who...

02 February 2014 7,998 4 View

Which of the following figures represent a SVM with linear kenrel, a SVM with gaussian kernel and sigma=1, a SVM with gaussian kernel and sigma=0.25?

Besides, I'll appreciate if one's introduce me an useful tutorial on SVM. I do't need mathematical tutorial or practical tutorial. I'm looking for general concepts. A tutorial with graphical...

02 February 2014 2,524 2 View

Do you have any exercises using pattern recognition and machine learning?

I'm preparing for an exam and looking for some exercises with solutions about pattern recognition and machine learning specially in the field of : SVM, Bayes, Decision Tree, Overfitting and...

02 February 2014 563 8 View

What is the effect of removing all training data except support vectors from our trainset?

Suppose we remove all train data except support vector data. How it would affect the SVM answer (Decision Boundary)?

01 January 2014 9,907 8 View

Which of the following learners are consistent with training data and why? 1NN, KNN, Candidate Elimination, ID3?

According to Tom Mitchel (Machine Learning, 1997): We will say that a learning algorithm is a consistent learner provided it outputs a hypothesis that commits zero errors over the training examples.

01 January 2014 6,816 2 View

What are the features of a successful application to a PhD position with funding?

I've already finished my M.Sc in Artificial Intelligence. I'm eager to apply for a PhD position in one of my favorite fields. I'm wondering which features are important for professors to accept an...

11 November 2013 7,666 7 View

Why do some journals ask for your own referees?

Some journals want you to introduce some referees. How do the referees' comments affect the final decision? What happens If I can not find an expert?

10 October 2013 1,061 6 View

Are there any rules for selecting base learners in a Bagging model? Should the base models be the same?

I'm reading about the bagging systems. After creating M data set using Bootsrapping we should train base models on these M data sets. How about base models? In Weka when I select bagging...

10 October 2013 884 2 View

What can be the reason behind adaboost M1 in Weka being inactive for my data set?

I'm going to perform AdaboostM1 on a data set but Adaboost option is inactive.

10 October 2013 8,248 2 View

In anomaly detection using Gaussian Mixture Model the final decision about new samples should be based on Probabilities Distribution Function values?

Assume we fit a GMM on a train set which contains normal samples. I'm wondering if we can use probability density function (which is a linear combination of component densities) in order to decide...

09 September 2013 7,270 10 View

Can someone recommend an efficient feature selection methods in a database?

I'm encounter with a very high dimension classification problem. I'm looking for an efficient feature selection (or extraction) method.

07 July 2013 5,563 14 View

What are new trends in Web Page classification?

Does anybody know a good review or a beneficial article?How about the data set?Is there any popular data set? For example in Intrusion Detection System, the researchers usually use KDDCup or...

07 July 2013 2,924 0 View

Does anybody know an ISI journal with a quick review process?

It should cover the mobile robot navigation or neural network and fuzzy system fields, if possible? This is my first article and I'm looking for a journal with low impact factor and with a quick...

07 July 2013 448 10 View

Does anybody know an ISI journal with impact factor less than 1 which covers the intrusion detection system field?

I've written an article about intrusion detection systems using machine learning and pattern recognition techniques. I'm looking for a good conference or ISI journal. My professor said look for...

06 June 2013 7,814 2 View

What is the exact difference between Hybrid Intrusion Detection and Misuse Detection?

An IDS which combine some classifiers using Majority Voting and divide samples to Normal and Abnormal (without reporting any information about attack types), is it a hybrid intrusion detection...

06 June 2013 4,626 8 View

Probabilities values in a Gaussian Mixture Model are very very big. Is it possible? Or they should be in [0,1]?

Probabilities values in a Gaussian Mixture Model are very very big. Some of them are pretty small(like 8E-10) and some of them are very big(like 8E+50). I tried both Netlab and gmdistribution...

05 May 2013 4,758 17 View

What does the Clonal Selection do in the test phase of a machine learning system? Does it act just in training phase?

I use Clonal Selection algorithm in an negative selection algorithm. It is said that using Clonal Selection algorithm can bring about adaptivity in the system (for example a negative selection...

05 May 2013 8,034 0 View

Is there a useful data set in web page classification field?

I'm looking for a beneficial data set for web page classification application. Do you know a good data set?

04 April 2013 585 5 View

Increasing "nu" parameter in One-Class SVM (I'm using LIBSVM) causes underfitting and a small value for "nu" causes overfitting . Am I right?

The parameter nu is an upper bound in the fraction of training points outside the estimated region. So I think decreasing nu can cause overfitting and increasing nu can cause underfitting. Is it...

04 April 2013 6,774 11 View

What is the gating network in the mixture of expert methods? How is the training phase of a gating network?

In the mixture of expert methods there is a gating network which produces weight for base classifiers results. I'm wondering how should I create a gating network? Where does the training data for...

03 March 2013 4,969 2 View

What are the best normalization methods (Z-Score, Min-Max, etc.)? How would you choose a data normalization method?

03 March 2013 8,612 26 View

Accuracy for base classifiers are 0.85, 0.90, 0.70 percent. A simple combination method (voting) enhances accuracy up to 0.99%. Is this reasonable?

03 March 2013 6,087 14 View

Is it OK using receiver operating characteristic (ROC) analysis in order to find proper parameters in a one-class classification problem?

In negative selection algorithm how we should find proper parameters like affinity threshold?

02 February 2013 7,982 13 View

If I used data normalization (x-mean(x))/std(x) for training data, would I use train Mean and Standard Deviation to normalize test data?

I've normalized training data using mean and standard deviation of training data. Now in testing phase, should I use mean and standard deviation of the test data or train data?

02 February 2013 1,186 14 View

In Gaussian Mixture Model Classification, the probabilities for test data and the proper threshold for classification are very small. Is it a problem?

I've implemented a GMM for one class of the data. Then I performed ROC analysis and the diagram is not bad. I achieved 83% accuracy with a threshold but the problem is that the threshold is pretty...

01 January 2013 8,423 4 View

I'm implementing Gaussian Mixture Model and EM algorithm using a matlab toolbox called Netlab. I get an error when I choose full covariance matrix.

I'm trying to implement Gaussian Mixture Model and EM algorithm using a matlab toolbox called Netlab. It uses EM algorithem in order to find the parameters of gaussian components. When I use...

12 December 2012 3,624 10 View

I want to use the "princomp" function of Matlab but this function gives the eigenvalues in a sorted array.

I want to use the "princomp" function of Matlab but this function gives the eigenvalues in a sorted array. This way I can't find out which column corresponds to which eigenvalue. For Matlab, m =...

12 December 2012 7,500 1 View

How would I implement an Intrusion Detection System using an Artificial Immune System?

What are you ideas about Danger Theory Algorithm? There are some algorithms to model and implement Artificial Immune System like Negative Selection and Clonal selection and recently Danger Theory....

10 October 2012 230 29 View