Wednesday, April 14, 2004

Best Place To Get Waxed In Ottawa

Seminars

We echo on this occasion three citations in the field of conferences and meetings related to the programming
  • declarative / functional (in PDF ) and GICA, are to be held in the coming months: 1st European Lisp and Scheme Workshop
  • (Oslo, June 13, 2004)
  • "Lisp has a tradition of Fruitful Providing a basis for language design experiments for many decades. The structure of Lisp, including Common
    Lisp and Scheme as its major dialects of today, makes it easy to extend
    the language or even to implement entirely new dialects without starting
    from scratch. Common Lisp, with the Common Lisp Object System (CLOS), was
    the first object-oriented programming language to receive an ANSI standard
    at the beginning of the 1990's. It is, arguably, the most complete and
    advanced object system of any programming language, and has influenced
    many other object-oriented programming languages that were to follow."
    [ continúa ]


  • Colloquium
    on Implementation of Constraint and LOgic Programming Systems

    (CICLOPS 2004)


    "This workshop aims at discussing and exchanging experience
    on the design, implementation, and optimization of logic, constraint (logic)
    programming systems, and systems intimately related to logic as a means
    to express computations. Experience backed up by real implementations and
    their evaluation will be given preference, as well as descriptions of work
    in progress in that direction."

    [

    continúa ]


    The 14th
    workshop on logic programming environments

    (WLPE' 04)


    "The aim of the workshop is to provide an informal meeting
    for Researchers working on the tools for the Development and analysis of logic programs. This year we want to Emphasize two Aspects: on one hand we want to discuss the presentation, pragmatics and Experience of Such tools, on the Other One, we want to extend the concept of "logic programming" Environments to tools based Developer for Any Language on computational logic (constraints, integration of Paradigms, specification languages, ...)." [ continues ] From the first date (to be held we learned via Bill Clementson's Blog , "Bits and pieces

    (mostly Lisp-related) That I collect from the ether
    ") are available in PDF format

    , the papers (communications, presentations) received so far. As for the

    workshops (workshops, seminars)

    CICLOPS 2004 and WLPE '04 , said to be held under the 20th International Conference on Logic Programming

    (ICLP'04, 6-10 September 2004, Saint-Malo, France) organized by the Association for Logic Programming

    (ALP).

    Manuel Carro and José Manuel Gomez-Perez, two of the organizers and coordinators of the workshops framed in ICLP'04
    to just refer to, are members of the CLIP Lab

    ( The Computational Logic, Languages, Implementation,

    and Parallelism Lab), Faculty of Computer Science, Polytechnic University of Madrid, whose area of \u200b\u200bactivity focuses on general Logic Programming and Constraint Logic Programming
    ( Constraint Logic Programming, CLP) in particular. In this context activity, members of the CLIP Lab
    have developed the Ciao Prolog

    : "[...]

    logic programming environment and restrictions [...] is one of the systems developed
    by the CLIP group. [...] [...] is free software and is currently being used in business applications both in the academic environment [...]. Among the advantages offered by Ciao Prolog highlights its extensibility, which have developed many libraries that add significant functionality to the system, such as constraint solvers, concurrency, distributed programming primitives and intelligent agents, persistence, higher order, objects, interfaces to other programming languages, etc.. As examples we can point the library PILLOW , possibly the most used for interconnection between logic programming systems (and restrictions) and the WWW
    and LPdoc

    a automatic documentation generator for logic programming systems and restrictions, both distributed as software Free. " [ source] Most technical reports (Technical Reports ) produced by members of the CLIP Lab are available for consultation by them sorted interest area and production per year (formats PDF documents are and PS). Unless you are looking for a specific text, from which it becomes aware in advance on which case is more direct and quick search by year the most practical and productive is done through the management and research topic . More information on conferences and seminars co-organized by the laboratory

    the relevant page.

    Wednesday, April 7, 2004

    How To I Prevent New Shoes From Creasing?

    Declarative Logic Programming and Prolog + Schelog

    Schelog is an implementation developed by D. Sitaram it possible to combine pieces of code written in a programming style similar to Prolog (including the main features of this language such as backtracking or reverse, the unification, the court, denial, meta-logical predicates , etc.). Scheme expressions in pure or conventional (Scheme is a language derived from Lisp

    - see previous entry in which we referred to the latter) within the same application: Schelog is an embedding of Prolog-style logic programming in Scheme. "Embedding''Means You Do not Lose Scheme: You use Prolog-style dog and Conventional Scheme code fragments Alongside Each Other. Schelog contains the full repertoire of Prolog features, Including meta-logical and second-order ("set'') predicates, only Those Leaving out features more That Could Easily Be Done Efficiently and more with Scheme subexpressions.
    In Programming in Schelog

    Schelog syntax is the characteristic of Lisp / Scheme (basically consists of nested lists and indented, without commas, as indicated by parentheses, preemption of operation sign arguments, strings in quotation marks, etc..). As an example, below the portion of code needed to compute, recursively, the factorial of a number, in Prolog in the first place, and in Schelog second (recall that factorial of a natural number n is the product of all natural numbers from 1 to n ): factor (0.1): -!. factorial (X, Y): - X1 is X-1, factorial(X1,Y1),
                     Y is X*Y1.

    (define %factorial
      (%rel (x y x1 y1)
        [(0 1) !]
        [(x y) (< x 0) ! %fail]
        [(x y) (%is x1 (- x 1))
               (% Factorial x1 y1) (% is and (* y1 x ))])) Schelog can be considered as a combination between styles of programming paradigms represented by one hand Prolog (logic programming

    dialect of Lisp

    other Scheme ( declarative programming functional). "Programming in Schelog " is an introduction in which the said D. Sitaram addresses the syntax and programming through the implementation that we are commenting. On the other hand, this same author, " Teach Yourself Scheme in Fixnum Days " is a quick guide and introduction to the language Scheme. Finally, we recommend reading a general introduction, referring to the origins of language Scheme: Scheme : small is beautiful - A programming language ideal for teaching dence ( Carlos Coello ). This article was subsequently published (PS

    format compressed in a. Zip) by the author, with the same title and more extensióny deep in the journal Advanced Solutions
    ( numbers 39 and 43, now this publication appears to be unavailable online, although Internet Archive can find multiple copies ). This new extended version of "Scheme: small is beautiful ..." adds to the explanation of the historical and language development Scheme, an introduction, with examples, the essential features and syntax for use, major updates and extensions as well as a final consideration about its utility RESEARCH AND teaching in the field of programming languages \u200b\u200b("Scheme as a teaching tool.")

    Thursday, April 1, 2004

    Manhattan Model : 460668

    Scheme = Lisp and Java-article-

    Not everything will be in the field Prolog declarative programming ... Through Lemonodor , weblog dedicated to language Lisp ( LISt Processing) and its associated technologies (but also address many issues related to robotics), we

     article 

    Lisp and Java (D. Milstein) : "First-class functions Are a Powerful feature of the Lisp programming language. This article describe Some Ways They Can Be Used, and explore how to Approximate Them in Java." Lisp language [1 ] [ 2] [3 ] [ 4] [5 ], developed initially in the late 50's of last century by John McCarthy (see his essay about

    History of Lisp), is undoubtedly a most known and used in the programming paradigm declarative / functional , and basis for the development of languages \u200b\u200band dialects other similar, more advanced features and modern, or just targeted to other areas of application (this is the case, for example, language Logo) . Lisp is a language widely used and extended in the Anglo world, specifically United States, especially through the implementation commom Lisp, and has traditionally been used both in academia and in business, to set process-driven applications of Artificial Intelligence (AI )-of Indeed one can say that was created and developed for this purpose, and is considered by both the "first language IA" - and natural language processing (NLP ), although today it is possible even find, for instance multiple applications, servers

    developed web more about the Lisp language:

    Practical Common Lisp (Peter Seibel). On Lisp (P. Graham). LISP

    First
    (C. Allen, M. Dhagat; another location).

    CLiki, the common lisp wiki . A Concise Introduction to LISP (David L. Matuszek). Common Lisp: A Gentle Introduction to Symbolic Computation (David S. Touretzky).


    Common
    Lisp the Language, 2nd Edition ( otra
    ubicación
    ).


    Lisp
    FAQ
    .


    Early
    LISP History (1956-1959)
    / The
    Influence of the Designer on the Design - J. McCarthy and LISP
    (H.
    Stoyan).


    Lisp
    Lectures (N. Levine).


    LISP
    Tutorial

    (M. Schwarz).




    • Successful Lisp:
      How to Understand and Use Common Lisp (David B. Lamkins).
    • The Common Lisp Cookbook.
    • How to Use Scheme. Writing Scripts and Programs with PLT Scheme (M. Felleisen et al.).
    • Teach Yourself Scheme in Fixnum Days ( D. Sitaram
    • ).
    • To illustrate the examples, the author of Java and Lisp
    • used a dialect of Lisp, called Scheme [
    • 1] [2 ]. The article is published in
    • ONJava.com
    • (whose main entrance We have taken the brief synopsis in English), great source of reference in which to find good articles and other references to the Java language and its many applications. Moreover, ONJava.com is an electronic publication subsumed under the corporate project
    • O'Reilly. Com
    • Tim O'Reilly, dedicated to publishing books, imparting conferences and courses, and web site creation (
    • Resource Centers) and on-line publications (
    • Online Publications : XML.com, Perl.com
    • , etc.) On computer technology and programming languages \u200b\u200b( Perl, Python
    • , C / C + + , XML
    • , . NET , etc.), with a clear focus on those technologies related to the development of web applications under
    • environments.