Discover the world's scientific knowledge

Dear Researchers, could you please tell me how I can find the best number of clusters in FCM method? My data set has 3 dimension.

What changes should we make for the fcm function in matlab to get penalized fcm? Or any approach to implement penalized fcm for brain tumour segmentation?

Hi All

could someone told me what is the good measure to evaluate the results of cluster algorithm for feature selection?. I am working in gene expression data clustering and I need to measure the quality of the clustered features?  is there any software that can do this?

please advice 

I am perform to research paper to enhance sting algorithm, can you help me in this topic to handle of problem the corner, vertical, and horizontal shapes for output result for this cluster.

Hello All,

I need to test the performance of a clustering algorithm that 

takes as an entry an (x,y) value

What i should do?

E.g. the Fisher's Iris dataset gives very clear clusters. I am looking for more publicly available well-clustered datasets.

What is the criteria for Conditional FCM algorithm (program) to terminate when used for centre selection in RBFNN?

Hello, please i need to know how to compute the intra-cluster density or quality for fuzzy clusters ?

I want to describe through the example.

I do have four sentences:

Sentence 1

Sentence 2

Sentence 3

Sentence 4

.....................................................................

I develop the features and apply to Fuzzy clustering algorithm. I get the membership value for each sentences.

Sentence 1 0.2 0.4 0.4

Sentence 2 0.08 0.9 0.02

Sentence 3 0.15 0.35 0.6

Sentence 4 0.12 0.08 0.8

..........................................................................

I do have golden standard data:

Group A

Sentence 1

Sentence 2

Group B

Sentence 2

Sentence 3

Sentence 4

Group C

Sentence 1

Sentence 3

Sentence 4

.............................................................................

Now, my question is how to compare the membership value that is obtained for each sentence to the golden standard.

I found numerous internal evaluation applicable to DBSCAN. Some researchers said that there is no available internal evaluation for DBSCAN, while some papers utilized the indexes such as DBI, DUNN, or S_Dbw.

Can I use the classical indexes for the internal evaluation of DBSCAN? Or, are there any limitations or challenges to apply those metrics?