T-LAB Plus 202216 October 2021
was releases on December 16 2022
T-LAB 10, which includes and expands the features of all versions released so far, is now available to be downloaded and also to be purchased.
Here is a short list of the most significant improvements made in this version of the software.
1 – When using the Co-Word Analysis tool, a new interactive dendrogram is available which allows the user to explore the relationships between up 3,000 (three thousand) key-words (see illustrations below).
2 – Now every network graph (force directed graph) available in the T-LAB tools allows the user to highlight the links of each target word on mouse over (see pictures below).
3 – Additionally, both when using the Co-Word Analysis tool and when using the Sequence Analysis tool, a new interactive graph allows the user to dynamically explore the relationship between key-words and the groups to which they belong (see below).
4 – In the new version the available options of the Graph Maker tool, which allows the user to explore various relationships between selected keywords, vary according to the analysis that has been performed previously (see below).
This means that - for example - after performing a thematic analysis or a topic analysis, the user can now explore each cluster/topic by using a 3d PCA (Principal Component Analysis).
5 – Additionally, each time the user edits/modifies a keyword list, he is now enabled to compute and export the TF-IDF values of all items included in his list (see pictures below). In this case, the procedure consists of two steps: (a) computation of the TF-IDF values of a N x M matrix, where ‘N’ are context units (either documents or elementary contexts) and ‘M’ are words (i.e. lemmas); (b) computation of the averaged TF-IDF value of every word within the ‘N’ context units.
6 – Finally, the interactive Word Trees option available through the Concordances tool allows the user to visualize the outputs in three different ways. In fact each root word can be placed either on the left, on the right, or in the centre of its occurrence contexts (see pictures below).