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artificial-intelligence (29)



Charlemagne
Charlemagne is a genetic programming application that includes both a commandline client and an interactive console mode. It is written in Python and Lisp, and is user extensible to some degree in both languages. It features built-in input-output mapping support and provides the ability to define complex fitness calculations in Lisp or Python.

Dbacl
'dbacl' is a digramic Bayesian text classifier. Given some text, it calculates the posterior probabilities that the input resembles one of any number of previously learned document collections. It can be used to sort incoming email into arbitrary categories such as spam, work, and play, or simply to distinguish an English text from a French text. It fully supports international character sets, and uses sophisticated statistical models based on the Maximum Entropy Principle.

Deduce
'Deduce' is an artificial intelligence program which accepts natural language sentences as input. These sentences describe properties and relationships between objects, (for example, "Spot is a dog", "A liquid will evaporate", or "Water does not flow uphill"). The user can then ask questions against that input, to which Deduce will attempt to answer using deductive reasoning techniques.

Dinrhiw2
Primary aim of the dinrhiw is to be linear algebra library and machine learning library. For this reason dinrhiw implements PCA and neural network codes. Currently, the neural network code only supports:

  • hamiltonian monte carlo sampling (HMC) and simple bayesian neural network
  • second order L-BFGS search
  • gradient descent (backpropagation)

As well as mathematical routines for arbitrary precision mathematics, hermite curve interpolation and many other things.

Discrete Event Calculus Reasoner
The Discrete Event Calculus Reasoner allows a programmer to add common-sense reasoning capabilities to programs. It supports deduction/temporal projection, abduction/planning, postdiction, and model finding. It allows default reasoning about action, change, space, and mental states. It is based on the event calculus, a comprehensive and highly usable logic-based formalism. It helps applications understand the world, make inferences, adapt to unexpected situations, and be more flexible.

FANN
Fast Artificial Neural Network Library (fann) implements multi-layer feedforward networks that support both fully connected and sparsely connected networks. It supports execution in fixed point arithmetic to allow for fast execution on systems with no floating point processor. To overcome the problems of integer overflow, the library calculates a position of the decimal point after training and guarantees that integer overflow cannot occur with this decimal point. FANN is designed to be fast, versatile, and easy to use. Several benchmarks have been executed to test its performance. It is significantly faster than other libraries on systems without a floating point processor, and comparable to other highly optimized libraries on systems with a floating point processor.

GNOWSYS Heckert gnu.small.png
GNOWSYS is an acronym for "Gnowledge Networking and Organizing SYStem." It is a web based object oriented database server with each object provided by an unique URL. GNOWSYS is a tool to construct and store persistently a Gnowledge Base (GB). The GB consists of the following three groups of constructor classes (system and temporal classes under development):

PredicateGroup: relationType, relation, functionType, function

Object Group: metaType, class, object (with provision to have classes and objects of declarative, procedural, encapsulated, temporal etc.)

Structure Group: systemType, system, flowType, flow, processType, process

GNOWSYS indexes data and metadata of objects in a catalogue for faster queries. Optionally, data can remain anywhere on the Internet (only the metadata stays in the database). Surrogates of procedures (classes, functions, and system calls) can also be installed in the database as special objects. These procedures execute as web services, so users can design applications without writing program in any programming language by specifying the semantics of a program and mapping the elements of the program to the surrogates of procedures is sufficient for GNOWSYS to test the application design.

Gneural Network Heckert gnu.small.png
Gneural Network is the GNU package which implements a programmable neural network. The current version, 0.9.1, has the following features:

  • A scripting language is available which allows users to define their own neural network without having to know anything about coding.
  • Advanced programmers can use the methods/routines inside the code for their own purposes.
  • When defining the neurons of a network, it is possible to choose among various discriminant and activation functions, etc.
  • Different methods to train a neural network are available, such as genetic algorithms, multi-scale Monte Carlo optimizers, simulated annealing, and others.
  • Several training methods can run in parallel on clusters.
  • Neural networks can be saved once trained for later use.
  • The code is truly cross platform since it is entirely developed in C and does not depend on any external library.

The network can now learn tasks defined by the user. An example of script defining a simple network which fits a curve is given. We plan to deliver more advanced features very soon. In particular, we are already spending efforts to implement recurrent networks. We also plan to implement learning reinforcement techniques and apply Gneural Network for deep learning applications. We will release the data along with the trained network.

Ikaros
'Ikaros' is a framework for writing and running component-based simulators. It is currently used for simulations of brain areas and learning models, but is general enough to be easily used for any discrete-time simulation. A simulation consists of modules connected in the simulator, with connections specified in an XML file. There are socket-based hooks for adding a GUI. The package contains a number of modules and complete documentation for working with the framework.

Infovore
Infovore is designed to merge large data sets such as Freebase and DBpedia, producing 100% valid RDF output at high speed because it uses the Hadoop Framework

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