I need to categorize domains into different categories that offer the best use of a domain name. Like categorizing 'gamez.com' as a gaming portal. Is there any service that offers classificat...

I am trying to categorize a numeric variable (age) into groups defined by intervals so it will not be continuous. I have this code: data$agegrp(data$age >= 40 & data$age <= 49) <- 3 da...

I would like to a categorize numeric variable in my data.frame object with the use of dplyr (and have no idea how to do it). Without dplyr, I would probably do something like: df <- data.frame...

I have a DataFrame where I want to change several columns from type 'object' to 'category'. I can change several columns at the same time for float, dftest[['col3', 'col4', 'col5', 'col6']] = \ ...

I have doubt in calculating IDF (Inverse Document Frequency) in document categorization. I have more than one category with multiple documents for training. I am calculating IDF for each term in a ...

I am getting familiar with NLTK and text categorization by Jacob Perkins's book "Python Text Processing with NLTK 2.0 Cookbook". My corpus documents/texts each consists of a paragraph of text, so ...

I'm trying to associate categories to products. The way I've implemented it so far is Class Product has_many :categorizations has_many :categories, through: :categorizations . Class Categor...

Does anybody know of good open-source text-categorization models? I know about Stanford Classifier, Weka, Mallet, etc. but all of them require training. I need to classify news articles into Sport...

If I am using R to plot. How can I assign a particular shape to data points belonging to one category (using the pch argument to plot()) based on a column in my data frame that has the categorical ...

I have a list of user queries to solr from a website (100's of thousands of them). My requirement is to return all the queries, in the given list, that are true for a document. I know I could index...

I have a series of CSV files of timestamped coordinates (X, Y, and Z in mm). What would be the simplest way to extract motion data from them? Measurables The information I'd like to extract include...

I find the concept of 'integration testing' confusing. There seems to be quite a few explanations and scopes: Functional/acceptance testing (e.g. testing the user interface with for example, Sele...

I have a table that looks something like this: ID | Keyword | Category | Sub-Category | Sub-Sub-Category | Sub-Sub-Sub-Category Do i need to split it up in two tables (a keyword table and a categ...

My large (120gb) music collection contains many duplicate songs, and I've been trying to fingerprint tracks in the hopes of detecting duplicates. And since I'm a CS Major I'm very curious as to wha...