swi prolog

The inventor of the GNU Prolog array Prolog design is a scholar at the University of Marseille, France. In order to maintain its pure language and Academic characteristics, the original Prolog has no arrays and no explicit data types. This is not necessarily a good thing for the actual needs of Using Prolog, because in

Learning notes for building an Expert System Using Prolog (2) II. the inference engine using PROLOG has a built-in backward chain inference engine, which is used to implement some functions of the expert system. The rules of PROLOG indicate knowledge, and the inference engine is used to obtain answers. Each rule has a general goal and multiple sub-goals. The infe

(x):-Witch (x).The query is as follows:?-Magic (house_elf).?-wizard (Harry).?-Magic (Wizard).?-Magic (' McGonagall ').?-Magic (Hermione).and draw a search tree of Magic (Hermione).My answers and explanations:1.?-Magic (house_elf). My Prolog implementation will make an error on this issue, because the wizard does not implement this predicate, but the query as a whole is invalid because it is neither a fact nor a push to export;2.?-wizard (Harry). My

programming is telling the machine what you want and letting the machine figure out how to do it. ( this is a very difficult thing to imagine for programmers who are used to the imperative language, but we'll give an example to illustrate this "smart") declarative programming to describe the nature of the object, so that the computer understands the goal, not the process. Declarative programming does not need to tell the computer the problem area to avoid the attendant side effects. Instruction

Ii. Under WAMIt has been imperative for decades. Functional or logical language compilers are broken down in several steps. In particular, an abstract machine is used as a high-levelSource codeAnd low-level executable targetsCodeThe intermediate layer between them. In fact, since Pascal and p-code, the abstract machine has been emphasizing as the backbone of the compilation process. The logic language is no exception here. compiling a Prolog Into a wa

Using off-the-shelf pagesA little trick.In the VIP development environment, you can test your code at any time without having to compile it into an EXE file.For example, to see the execution results of the VIP built-in predicate filenameext, you can write in a blank. Pro file:GOAL filenameext ("Prolog.exe", Name,ext), filenameext (NewName, "Prolog.exe", ". Err").Then click the Menu "Project | Test Goal ", you will see the following results:Name=

Http://blog.csdn.net/lawme/archive/2008/10/17/3089770.aspx 6. briefly explain the statements related to GTK-Server This is a basic knowledge of PROLOG syntax and usage. refer to the following tutorial. Http://www.csupomona.edu /~ Jrfisher/www/prolog_tutorial/contents.html For the internal predicates of GNU Prolog, see Http://www.gprolog.org/manual/gprolog.html (1) automatically executed statements After th

: identity, but also pay attention to whether to use chunked Transfer Encoding ( Segmented transfer)Something, some say that the direct spread to SAX parser can be filtered out. Of course I used the SAX,JAXP found not to filter out. Environment for document testing: Java 7 + xerces sax. All exception stacksOrg.xml.sax.SAXParseException; linenumber:1; columnnumber:1; Content is not allowed in prolog.at org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException (Unknown Source ) at Org.ap

Installing Erlang is relatively simpleDownload the Erlang compressed packageInput tar-zxvf compressed package to decompressEnter the extracted directory and enter./configureAfter./configure is executed, enter makeEnter make install.Enter ERL at run time to enter interactive Command Line ModeProlog I installed swing-PROLOG and a GNU Prolog, But I didn't install it.Installing swing-

To write a simple expert system, we plan to use the PROLOG Language in a short time. Reference: tyros73.pdf (Tutorial document on the official website. Many of the following content will be referenced since then. For short, tyros PS: it seems that it is not much simpler -_-! ), AI tutorial, two slides on Baidu Library IDE: Visual Prolog (vip ps: Taobao ...) 1. Install and run VIP Download the Personal Editi

Study Notes on building an Expert System Using Prolog (4) Iv. Description It is said that one of the important functions of the expert system is self-explanation of its behavior. This means that users can ask questions to the expert system at any time during the consultation process, why is it giving a certain answer, and the system will give an explanation according to certain rules. 1. Meaning of the interpretation function for users The user does

Introduction acknowledgment 1. symbol conventions 1.1 keyboard character 1.2 mode specification 1.3 Development and operation system 1.4 function prototype 1.5 compliant with ISO Standard 2. Vocabulary 3. How to Run prolog3.1 getting started 3.2 read Program 3.3 insert 3.4 query and command 3.5 syntax error 3.6 undefined predicate 3.7 program execution and interrupt 3.8 exit from top layer 3.9 nested execution rest 3.10 save and restore program status 3.11 sicstus

Use Prolog to knock the code, feel comfortable.Prolog programming paradigm, the degree of abstraction is much higher than the middle, low-level C language and so on. Tap the code of the source length, at least 50% less than the C language savings.Moreover, Prolog's syntax is simple, the symbol choice is natural and reasonable, the eye-pleasing degree is much higher than its "close relative" Erlang.Visual Prolog