Software

Bayesia announces the release of the version 4.1 of BayesiaLab, the leading software in the market of Bayesian networks and Data Mining.

The main new features of this release are:

• Total recasting of the node editor. Structured with thumbnails, this new editor allows now to manage all the properties of the node (color, image, temporal index, observation cost), allows to specify if it belongs to one or more classes of nodes, allows to associate numerical values to its modalities, and also allows to edit its associated comment;

• A constraint editor that allows to introduce some a priori knowledge on the structure of the network by specifying forbidden arcs between nodes or classes of nodes;

• An imputation algorithm that allows to complete the missing values based on the probabilistic law or by choosing the value with the highest probability;

• New inference tools, with the Off-line Inference to compute and save the probability distributions of a set of nodes with respect to a file of cases, the Interactive Inference to set evidences, step by step, based on the values that are described in an observation file, the Interactive Bayesian Updating to use the associated database as an observation file and to update the probability distributions of the parameters of the network;

• An algorithm to reduce the complexity of the too connected Bayesian networks; this algorithm allows then to carry out exact inference on approximate networks;

• and, as usual, increased ergonomics of the interface and performance improvements.

You can consult the newsletter that describes more in details the new functionalities of BayesiaLab 4.1 on our web site: www.bayesia.com/GB/produits/NewsLetter0506.php