Tuesday, March 30, 2004

Nadine Jansen Terhes Videó

About

Following the style of which until recently was the design of my blog

sister, little more than a month is changed ProLog appearance IR, although for different reasons-the same as during this time have maintained "silence" this area of \u200b\u200bpublication, so far has not made an explicit reference to this circumstance. Basically the redesign work has been to remove the tables as system layout, and make the latter entirely to CSS . The advantage of having the page structured in this way, regardless of maso least meet the standards existing the fact is that they are completely separate blocks of content from presentation itself, and thus more easily introduce future changes in style and appearance. In fact the style that you can see at this time intend to be provisional, since among other issues, and in its present configuration, may have some display problems in Internet Explorer (not!), Follow n is the screen resolution used.

Also I have in mind a future change hosting and publishing system (" WordPress ?) In the short term, if time and the desire to allow ... In any case, the important thing, and what it is, issues of style aside, is to offer interesting content, and in this sense I hope, "put the batteries" hereinafter, and that I've expanded over intervals publication, combines Although statistics show me that, rather than regular and loyal users, the profile of visitors to this site corresponds to accessing people, a significantly majority to through search engines (Google in particular, how could it be otherwise, at least today) and metasearch, and search the corresponding equations-some very interesting and surprising, indeed, whose analysis allows the time to establish if there is an appropriate match between the topics commonly addressed and searches equivalent to those issues by users. Well, now time to clarify the meaning and significance of the event which currently shares the spotlight with the top of the page: "Algorithm = Logic + Control." This "equation" very general, has made a fortune when explicit, graphic and condensed form, the principles and rationale implicit in the logic programming paradigm (associated with this scheme, so particular, logic programming with constraints), and in general in the analysis software, and it is not the title of an article in which author Robert Kowalski explains his notion of declarative programming in general and logical in particular, early development for the years when it was published. The full review of this paper is as follows: Kowalski, R. (1979), "Algorithm = logic + control, Communications of the ACM, 22 (7), pp. 424-436. [complete reference ] The full text PDF format is available in digital library of ACM , although access is limited to paying subscribers . It is freely accessible the record, the summary and the bibliography accompanying the text. The article was later republished in the work Programming Languages: A Grand Tour (3 rd edition, E. Horwitz ed., Computer Science Press: Maryland, 1986, pp. 480-492).

) and how the program should address this objective (the

how , the control). In this sense, the paradigm of logic programming, and in general the paradigm of declarative programming (which includes on one hand, functional programming - Haskell, Lisp , etc .- and other logic programming), clearly focuses on facilitating

what we want to do the program-its target of pre-, which

how you must do to achieve it, which does not exclude the existence of powerful control structures such as those which are represented in Prolog, by the mechanisms of instantiation of variables, and check

unification of structures, recursion

and backtracking

or reverse, to name the most important.
Chapter "Pandora's Box A = L + C and its variants", page 84 and following the notes of BC Ruiz Jiménez,
Course Notes for Advanced Declarative Programming (University of Málaga
, PDF format document

) provides a good EXPLANATION n the meaning and implications of the formula Kowalski. Indeed, in this paper can find a very clear articulation of synergy and symbiosis between certain projects provide programming paradigm represented in part by the language Prolog, and a number of approaches (functional, oriented objects etc.), as we mentioned in the previous annotation (" =" Logic Programming Prolog? ") concerning a notice published in Lambda the Ultimate . See paragraphs about "Logic Programming" and "Integrating logic and functional paradigms." Returning to the explanation of the equation Kowalski, interrupted by the reference in paragraph above, we can say that in Prolog, and given the characteristics of this programming language, the user is primarily concerned to implement the "logic" of programs (consisting mainly of the knowledge base, inference rules, and queries), as control mechanisms cited ; we were before, those who determine how solve specific objective program, implemented through a series of algorithms and mechanisms that work in-house, whose characteristics depend on the interpreter used last ( remember that Prolog is an interpreted language, if While some implementations allow certain instructions to pre-compile). arises at this point, associating with

control logic , the idea of \u200b\u200bconstraint programming and Constraint Programming to provide more controlled evaluation of control mechanisms, the scheme logic programming and thus to fully satisfying the maximum Kowalski, thus giving rise to the Constraint Logic Programming and Constraint Logic Programming (CLP). Some documents on constraint programming in general: Constraint Programming (M. Wallace, also in PS format, see especially section 2.1.1 . Algorithm = Logic + Control ). Constraint Programming (lecture notes of Professor Jia-Huai You ).

On-line guide to Constraint Programming

(R. Bartak, also the author of Guide to Prolog Programming ). on Constraint Logic Programming in particular see for example the following texts: An Introductory Course on Constraint Logic Programming (M. Carro et al. ).

Constraint Logic Programming - An Informal Introduction

(T. Frühwirth et al. ; format

PS). Constraint Logic Programming: A Survey (J. Jaffar, MJ Mayer, PS format).

Constraint Logic Programming


La
Programmation Logique et par Contraintes
    (L. Jean-Michel en
  • Lambda
    Systems ).


    Algunas opiniones e interpretaciones al respecto de la "fórmula"
    que venimos comentando:



  • "The basic property of a declarative programming language is
    that a program is a theory in some suitable logic. This property immediately
    gives a precise meaning to programs written in the language. From a programmers
    point of the basic property is that programming is lifted to a higher level
    of abstraction. At this higher level of abstraction the programmer can
    concentrate stating on What Is To Be computed , Not Necessarily how it is to Be computed. In Kowalski's Terms WHERE algorithm = logic + control, the programmer Gives the logic But Not Necessarily the control. " Olof Torgersson
  • in
  • A Note on Declarative Programming Paradigms and the Future of Definitional Programming (text in HTML
  • is a shortened version of the original PS
  • format)
  • "The formula isn't required, and it Will not Be Until someone Proposes specifying a precise and Generally Accepted notion of how control is to Be added to an expression of the logic of a program. Nevertheless, the idea is attractive, and I believe it Can Be Made to work for Some interesting class of programs. It is analogous to my comparison of epistemology and heuristics or Chomsky's competence and performance. " John McCarthy in Coloring Maps and the Kowalski Doctrine
  • In any case it offers a fairly detailed explanation of the expression n "Algorithm = Logic + Control" and its meaning in relation to logic programming, in another text of the Kowalski, Logic Problem Solving for (North-Holland Elsevier, 1979), specifically in Chapter 5,
  • The Procedural Interpretation of Horn Clauses (PDF format , page 125 and following, although in fact the chapter ; whole chapter deals with this issue.) The chapters in this book, very affordable level, and full text are available in PDF in
  • personal page R.
  • Kowalski, which is also a selection of his latest literature and the preliminary draft chapters of the new book he is preparing How to be Artificially Intelligent - the Logical Way , which addresses the fundamental principles of computer logic, and implementation problems of everyday life. Kowalski will end by emphasizing that, along with Alain
  • Colmerauer
, one of the key figures in the development creacióny logic programming in general and Prolog in particular. Colmerauer, which since the late 60's of last century had been working on the processing and natural language processing through the application of computational logic, makes contact with Kowalski in 1971 to hear their work in relation to the Show No automatic theorem (theorem proving

) and the resolution method
SL (SL-resolution ), and fruit of this collaboration produced the first effective development of programming language No logic Prolog. Throughout this process, along with other notes autobiographical, is explained briefly in the same Kowalski in the text
A Short Story of My Life and Work .

Monday, March 29, 2004

Cool Facebook Profile Image

Kowalski formula = "Logic Programming Prolog?

The reference the tutorial "The Logic Programming Paradigm and Prolog " of
Apt KR (University of Amsterdam, document formats
PS; really is Chapter 15 of the book " Concepts in Programming Languages \u200b\u200b
"), is now bringing Lambda the Ultimate interesting comments that should not be missed by anyone interested in this programming language and logic programming in general. For example, Peter Van Roy , Catholic University of Louvain (Belgium), a leading researcher in programming language implementations in the domains of declarative programming, logic, and with restrictions, among others, criticizes
-in a clear reference to own
Apt

- el, in his opinion, excessive "absorption" by some developers ... "[...] There is a Certain class of logic programmers choose to ignore anything Who That Does Not Fit Into The cozy little world of Prolog-style logic programming. " [Source ] ... almost exclusively interested in the logic programming paradigm when it is confined to Prolog and other languages \u200b\u200bare very similar (so they reach the equation implicitly assume logic programming Prolog = ), without considering other lines of development and investigation n that, based on the foundations and contributions of this paradigm, seek complement the shortcomings and limitations of Prolog "pure" when it comes to represent and solve certain problems and computational approaches. As an example of the routes in developing novel alternative programming systems, "unrelated" or related to some extent with the logic programming paradigm, we can cite the

Project Mercury, the Mozart programming system , language logic / functional Curry, etc., etc. also very interesting commentary N. Krishnaswami, in response to a question from another participant says succinctly, with an example, what is the constraint programming [ 1] [2

constraint programming (CP) that in the paradigm logical / declarative leads to Constraint Logic Programming

or Constraint Logic Programming (CLP). The discussion on the terms mentioned at the beginning of this entry, raised by Peter Van Roy, of course continues the thread of reference made Lambda the Ultimate, so I can only recommend reading the new comments that will arise out of previous .

Wednesday, March 3, 2004

North Face Austin Tx Outlet

"Spam" as a metaphor of a living organism

Interesting article on the Generation5 "

Application of Biological Metaphors for Identifying and Killing Spam
" (S. Evans). Is the topic? creation of an anti-spam filter Artificial Neural Networks (ANN, Artificial Neural Networks

). As introduccióny theoretical argument, the author makes an interesting analogy, the phenomenon of spam as a living ( Spam as a Living Organism), in constant evolution and adaptation " medium "(in this case the email and streaming media formats and through Internet), governed by its own laws of" natural fit. " Complete with C # source code, this article looks at how to Identify a Variety of spam using biological metaphors Such as neural networks. [ source] The article includes the source code of the filter, downloadable in a zip file, and developed in C #

language. Like all RNA , this code requires previous training to operate correctly, as explained in the text ( Training the Networks) . In the results section, we are informed that, in tests, has obtained a ruling just over 1000 emails analyzed. On another issues, not very far in any case, and in Generation5 , se
publico hace ya varias semanas otro artículo que me gustaría
destacar: " Intelligence
- Artificial and Otherwise
" (Bruce L. Toy):


This paper presents a model of artificial intelligence, based
on an XML
memory structure, a logic architecture of divisible processor functions,
and real-time sensor integration.  It incorporates learning, consciousness,
creativity, and growth in a framework that can be used to understand human
behavior, build an independent intelligent entity, or integrate a large-scale
computer network into an intelligent system.

[

fuente ] Using XML to implement the memory structure of the working model based on IA

features. Since the abstract of the article just quoted is sufficiently clear and expressive, I do not think we should add anything else about it except to recommend its reading.

Monday, March 1, 2004

Klucz Seryjny Do Mount&blade 1011 Pl

An Introduction to Prolog "for" Hackers "...?

Through pjorge , I find the recent publication of A Prolog Introduction for Hackers . In passing reference has helped me to know Kuro5hin.org " ... Collaborative site about technology and culture, Both separately and in Their Interactions. (

source).

..." is simply an introduction to this language, very general, so that I can not understand that depict the "hackers" in the subject ... certainly, as I pointed Ander Donosti.org something this must have been as incomprehensible to mention ... General and brief, I repeat, although the exposure time sufficiently clear and complete, this little tutorial is however quite suitable for those who just know some (or all) of the Prolog language and are interested in acquiring basic. Perhaps it is missing a reference longest essential procedures such as cutting, denial, recursive techniques and battery parameters, using dynamic predicates, etc.

are also highly recommended reading the many comments raised about this little tutorial (over 100 at the time of writing), with emphasis, in my view, which is entitled "Benefits of the Prolog mindset ... ", but anyway, should not miss any, many of them are simple criticism Maso less informed, about the methods rites or demerits of the language Prolog, while in other cases these contributions additional, very pertinent questions about little or nothing covered in the tutorial that we are commenting, or simply report interesting resources related to that language. In turn, in comments

to pjorge annotation, JJ gives a somewhat surprising, and in my opinion biased and wrong, about the Prolog language, which in any case is answered by great success by Akuma ...
also refer to the tutorial

" A Prolog Introduction ... " and also, in the comments section can read some interesting opinions. Noted that Peter Van Roy

outlining several tutorials, notes and introductions to Prolog. In some cases these are electronic versions of monographs dedicated to this programming language. The order of the words is random, does not imply any level of importance or anything: In Castilian

Mathematical Logic Introduction - Mathematical Logic and Applications (SV Chapa Vergara). Introduction to Prolog (J. Suarez Sanz).

Logic Programming ( V. Iniestra ). Knowledge representation in intelligent systems (G. Fernandez).

Knowledge Representation (E. Morales, LE Sucar).

Prolog Tutorial (partial translation of the manual DECSYSTEM-10 Prolog system). Prolog Tutorials Programming

in Castilian

(A. Fernández Pineda). Style Guide Prolog programming (PR Borges). Introduction to Prolog. Logic Programming Prolog (by Wintermute). Prolog

(M. Salas Zúñiga, E. Uraga Serratos).

Guide to
Prolog Programming

(R. Barták).






En otros idiomas




  • La
    Programmation Logique et le langage Prolog
  • (P. Nugues).



  • Introduction
    à Prolog
  • (C. Solnon).



  • Manuale
    Prolog (G. Adorni et al.
  • ).



  • Méta
    Interpréteurs en Prolog
  • (
  • L.
    Jean-Michel ).


  • Tutorial
    de Prolog (Claudio Cesar de Sá).


  • Zur
    Entstehung der Programmiersprache Prolog ( D.
    Schmitt
  • ).



  • Introdução
    à Prolog Programação
  • (Luiz AM Palazzo).
  • This is by no means a complete list of everything you can find on the internet about this language. In English, and also in Castilian, are enough notes and lecture notes for college courses, usually quality and depth of analysis far superior to that found in the introductions and tutorials that just mention, while we let your reference later.