Alceste

What is Alceste?

Alceste is a textual data analysis software developed by the Society of "Image", together with the National Council for Scientific Research (CNRS). It has been refined over the years and thanks to the observations that stem from the multiple applications made since 1986, when Image was created. Alceste proceeds to a first analysis of the vocabulary of a corpus, and makes the dictionary of these words with their roots and frequencies.

It then cuts the text into homogeneous segments containing a sufficient number of words, and proceeds to a classification of those segments, detecting stronger oppositions. This method allows to extract classes of meanings, composed of more specific words and phrases, the remaining classes represent the main ideas and themes of the corpus. The overall results, ordered according to their relevance, with various graphical representations and analysis reports, allow the user an easy and effective interpretation. Today, Alceste is known and recognized as a high-performance tool, a compact and user-friendly device, essential for decision making and analysis. It handles any type of text in multiple languages and has many applications in different fields.

Alceste 2015 puts Alceste at the forefront of textual data analysis software. The 2015 edition receives many new graphic results, sliding d'icônes. It describes, sorts and automatically synthesizes a text: this is alceste's main objective.

The method used:

The method used by Alceste is a descending hierarchical classification. This is the basis of alceste software. The 2012 edition of Alceste uses, in addition to the descending classification, two other classifications: the ascending classification and the thematic classification (manually operated). The user can use one or more of these applications to optimize the interpretation of the data.

Features:

Alceste software treats all types of text, typed with a word processing program, a scanner or a speech recognition system. It runs on Windows XP, VISTA, 7, 8, and MacOS X (if your Mac contains an Intel processor and an emulated Windows session). Alceste is provided with dictionaries is several languages (French, English, Portuguese, Italian, Spanish and German) allowing you to do processing in several languages. These dictionaries remain open to any modification; The user can add or delete some terms.

Depending on the version, Alceste processes texts up to 100Mb. Alceste is equipped with a panoramic screen that synthesizes the overall results allowing you to scan and have an overview of the results, to compare, select, edit, enlarge, export different results to a final report writing. A graphical factor analysis (FA) module allows users to view, filter, refine, confirm and interpret key results.

Key Features:

• Vocabulary analysis, grammatical categorization, word reduction and dictionary editing.
• Multilingual analysis (French, English, Spanish, German, Italian and Portuguese).
• Ascending and descending classifications, text-mining, full-text indexing.
• Coloring and prioritization of classes in order of importance.
• Permanent access to the original text, interacting with your dictionary
• Analysis of factors in correlations of coordinates and contributions.
• Specific vocabulary of cross variables and correlation of forms.
• Increase the vocabulary curve by grammatical category, word distribution by individual and by class.
• Temporal analysis, proximity disks.
• Cross-tabulation of variables or multilevel, simplified, or advanced words.
• Text cartography by class, by individual, by textual unit.
• Agreement of repeated shapes and segments.
• Comparison of texts through treatments.
• Detailed analysis report, synthesis report, additional overview, individual comparison, reminder.
• AlcesteGraph, AlcesteWriter.
• Parameterization of analysis on two levels: simplified or advanced.
• Synonyms and words to exclude.
• Corpus formatting and cleaning function, variable library.
• Clusters by class, individual and modalities.
• Form networks by class, by variable, and for corpus.

Requirements of sistema:

CPU: 1.8 GHz dual core processor

RAM: 2 GB

HDD / SSD: 50 GB of free space on the main drive

Operating system: Microsoft Windows 10, Microsoft Windows 8 32-bit, Microsoft Windows 7 32-bit and Microsoft Windows Vista 32-bit

Resolution: 1024×768

Supported operating systems

Mac OS X 10.5 x (Leopard), Mac OS X 10.6 (Snow Leopard), Mac OS X 10.7 (Lion), Mac OS X 10.7 (Mountain Lion), OS X 10.9 (Mavericks) and Mac OS X 10.10 (Yosemite)

Hardware requirements

Memory - 1 GB of RAM and more

Free disk space - 50 MB

System type - 32-bit and 64-bit OS