Winnow efficiently trains and operates any number of unique Bayesian (Naive Bayes) classifiers on large sets of content. It has very high performance and works with very small training and unbalanced training sets. It has been used to power an innovative Web feed reader that uses smart tags, which learn and find the content you want to see, from more sources than you can follow with traditional feed readers. It works particularly well with Ruby and Ruby on Rails.
protective protects active records from being destroyed in a declarative way: < protect_if :attachments, "Record has attachments and cannot be destroyed" > . Of course, you may pass the name of any defined method. If its result evaluates to present?, the record is not going to be destroyed. No exception is thrown, but a message is added to the errors object of your model. This may then be used further on.
setiQuest is a project that empowers earthlings everywhere to become active participants in the search for cosmic company. It includes two software systems. SonATA detects the evidence of extra-terrestrial technology in data that has been collected, and SetiQuest Explorer is an Android app through which anyone can access the same telescope data and visually detect evidence of alien technology.
Dudle is an online scheduling application. Users are able to schedule events (such as telephone conferences and meetings) or run opinion polls (for example, to find out which sort of coffee people like the most). Unlike most other similar applications, Dudle offers enhanced access control settings, which minimizes trust assumptions in the polling server.
GraphicsMagick is a robust collection of tools and libraries which support reading, writing, and manipulating an image in over 90 major formats including popular formats like DPX, DICOM, BMP, GIF, JPEG, JPEG-2000, PDF, PNG, PNM, SVG, and TIFF. A high-quality 2D renderer is included, which provides a subset of SVG capabilities. C, C++, Perl, Tcl, and Ruby are supported. Originally based on ImageMagick, GraphicsMagick focuses on performance, minimizing bugs, and providing stable APIs and ABIs. It runs on all modern variants of Unix, Windows, and Mac OS X.
bgpfeeder is a program to feed a BGPv4 speaker with an infrequently changing list of static internal routes. It is used at Bytemark to rearrange routing information from the "network organizer" database, to avoid staff having to log in to core routers to effect common routing changes. It is also used to communicate with transit providers to communicate "black hole" information about traffic that should not be passed on to the routers.