Dictionary building

The option Dictionary building opens a window in which the user can carry out some operations on the corpus dictionary.

The user can rename or group the avalaible lemmas (see option '3' below); furthermore he can export the dictionary (see option '4' below); or import a customized dictionary (see option '5' below).

The starting point is a table (the Corpus Dictionary) that reports the following information:

- word/lemma correspondences;
- word occurrences;
- some labels which refer to the automatic lemmatization (see the "INF" column).

Before any intervention, by selecting a specific word and by using the right click of the mouse, the user can check the concordances (Key-Word-in-Context) which interests him (see the above option '2'). In any case, after clicking the "keyword selection" tab, the customized settings must be selected (see the above option '1').

The possible operations, even though different in their goals (revision of the lemmatizations and/or applications of grids for content analysis), all give a reorganization of the T-LAB database, thus creating different tables used to analyse data. Therefore all operations must be done for the words (lemmas or categories) considered to be interesting for the subsequent analyses. T-LAB, in fact, makes a further option available, Key Words Selection, with which users can decide which lemmas to "keep" and which to "discard".

The two functions (Dictionary Building and Key Words Selection) are strongly interconnected and the user can easily move from one to the other, also in order to change one's choices.

In Dictionary building there are two operating modalities:

- one which allows you to move the selected words (click) to the box on the right and, afterwards, re-denominating them by using the option "replace" (N.B.: In this case, the new label can be chosen from the selected lemmas. See the above option '3') or by typing a new label in the appropriate box;

- the other by using the "import a dictionary" option when the user intends to apply his list for classifying the words (See the above option '5').

N.B.: The right-click in the Rename / Group box enables a context menu which allows three operations: a) verify the concordances (Key-Word-in-Context) of the selected item; b) remove the selected item from the box; c) remove all selected items from the box.

In order to import a customized dictionary, it is required that the user has set up a Dictio.diz or Dictionary.diz file.
These files can be made up of "n" lines, each with a couple of strings separated by the character ";".
The maximum length of a string (word, lemma or category) is 50 characters: neither blank spaces no apostrophes must be included.
For each couple, the first string - on the left - indicates the label (lemma or category) defined by the user, the second indicates the corresponding word (Dictio.diz case) or lemma (Dictionary.diz case) already present in T-LAB dictionary.

These are some examples:

According to the type of file you import, the changes will be as follows:

N.B.:

- Using the option Lemmatized Corpus it is possible to export a copy of the corpus ( .txt file) in which every word will be replaced by the corresponding lemma or category.
- When the dictionary has been modified, the following analyses on the same corpus are available only as customized settings.