How Does The Dome Camera Work

applied to the extraction information

One of the articles in the latest issue of Byblos

(Electronic Journal of Information Science, n º 20, October-December 2004), is headed title "Test an information extraction system (technical intelligence artificial) in an information center that specializes in plant health. "(the article itself is PDF format

). Written by Ingrid Paz García (Cuba), he describes an expert system applied to the extraction of informació No of scientific articles, whose topics versa in this case plant health. The extraction of information, one of the most important tasks in what has been to be known as mining

data [1

- PDF -] [

2] [3

] [

4] [5 ] or data mining

- added additionally, to techniques classic information retrieval, others specific to the field of artificial intelligence to help capture facts (relevant data) from the retrieved documents. By the way, and in conjunction with data mining , there are many experts who do not like the literal translation "mining data ", preferring expressions adjusted original meaning and use of Anglo-Saxon term such as" data mining "or" data discovery ", for example. The expert system described in Arti , ass, used to extract relevant information from scientific articles and technical content, is referred SEISAV (System Information Extraction Plant Protection), and system is based on the CRYSTAL (University of Massachusetts), oriented treatment of texts in English only, so it has been suitably adapted to work with the specific language of the Castilian language, and equipped with more possibilities of use. Induces (build) automatically rules textual analysis from a previous training (method of "automatic training"), but these rules can be constructed manually by an expert familiar in this type of systems, and application-specific domain (method of "Engineering for Knowledge"). The crystal system is a shell (development environment) originally designed to work under MS-DOS, marketed in Europe by Intelligent Environments. However, new environments ( AM for Windows ) relegate CRYSTAL development as a commercial product in the 90's of last century.

system operation, and some examples of use are clearly explained in the article, quite entertaining, with a level of complexity very affordable even for people without knowledge regarding previous expert systems [1

] [

2] [3

] [ 4] [5 ] [ 6] [7 ], which makes it a highly recommended reading for anyone interested in the implementation of these systems applied to document processing and information management of a significant nature (as opposed to the retrieval and treatment of informació n 'raw').

Dont Do Before And After Wax

reviews of books on logic and demonstration

Proofs and Logic in Solving Book Reviews are listed all the reviews posted on the web of the Mathematical Association of America (MAA Online ), under section Read This! - The MAA Online book review column on papers whose main theme revolves around logic and demonstration and related disciplines of mathematics, such as the theory to set . To find reviews on other topics in the field of study of mathematics, go to

subject index. Also noteworthy are the web

of MAA Online

, brief monthly columns (on the left drop down menu the portal of entry, are listed under "Publications, Columns "), written by various authors on all sorts of topics related to the broad universe of mathematics, such as Keith Devlin, the oldest of all published under the heading Devlin's Angle ; this author, and the issue of logic and deduction, has something interesting, as are the brief comments The mathematics of human Thought , Laws of Thought and

Are Mathematicians Turning Soft? , among others. Updated (07/01/2005): In this month's (January 2005), removed Last Doubts about the proof of the Four Color Theorem , K. Devlin realizes new contributions in the demonstration by computerized systems, the problem of Four Colors [1 ] [ 2 ] [3

], a classic in the field of deductive logic, the mathematical proof

, topology, and combinatorics, and gives an overview of the various conjectures raised this issue over time. This problem can be defined, briefly, by the following statement:

"In a plane or in an area not need more than four colors to color a map so that two neighboring regions, ie, that share a border and not just a point, are not colored the same color " [Source ] John McCarthy, one of the pioneers of Artificial Intelligence, analyzed, Article Coloring Maps and the Kowalski Doctrine

(1982), a program written in Prolog, and its underlying algorithms, which solved this problem by applying the methodology of logic programming to previous mathematical proofs, reached after the problem statement in the second half of the nineteenth century .