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Expert System

In: Computers and Technology

Submitted By dragosrazvan29
Words 542
Pages 3
Universitatea „Dunărea de jos” din Galați

Sistem informatic inteligent pentru recomandarea statiunilor

Proiect la disciplina: Sisteme Bazate pe Cunoștințe
Student: ANGHELUTA DRAGOS RAZVAN
Grupa: 22C41B
Profesor îndrumător: Ș.I.dr.ing. Adina COCU

Informatii despre aplicatie

Tema proiectului este recomandarea statiunilor din Romania in functie de anumite caracteristici.Aplicatia poate sugera statiuni din zona montana sau din ceea maritima.Pentru statiunile din zona montana acestea au fost clasificate dupa anumite caracteristici cum ar fi altitudine ,servicii medicale(balneoclimateri,climaterice) si practicarea sporturilor de iarna.Statiunile din zona maritima au fost clasificate dupa anumite caracteristici cum ar fi altitudine si servicii medicale(balneoclimaterice) .

Tehnologii folosite

CLIPS este un acronim pentru C Language Integrated Production System, o unealtă pentru construirea sistemelor expert dezvoltată de NASA în anii 1980. Sintaxa și numele au fost inspirate de OPS (sistem de producție oficial, în engleză Official Production System) creat de Charles Forgy. Primele versiuni de CLIPS au fost dezvoltate începând cu 1984 la NASA-Johnson Space Center (ca o alternativă la sistemul existent numit ART*Inference) până la începutul anilor 1990 când subvenția a încetat din cauza problemelor bugetului Federal, și a unui ordin conform căruia NASA trebuia să cumpere software comercial în loc să-l dezvolte. CLIPS este probabil cea mai folosită unealtă pentru sisteme expert deoarece este rapidă, eficientă și gratuită și incorporează un limbaj de programare complet orientat obiect. Cu toate că acum face parte din domeniul public, este încă actualizat și susținut de autorul original, Gary Riley. CLIPS incorporează un limbaj de programare orientat obiect numit COOL pentru a scrie sisteme expert. Cu toate că este scris în limbajul e programare C, interfața sa seamănă foarte mult cu cea a limbajului de programare Lisp. Se pot scrie extensii în C, iar CLIPS poate fi chemat din C. Ca și alte astfel de limbaje, CLIPS are de-a face cu reguli și fapte. În timpul rulării programelor, existența diferitelor fapte într-o bază de cunoștințe pot face ca o regulă să fie aplicabilă. O regulă aplicabilă este apoi aplicată, adăugându-se astfel noi fapte la baza de cunoștințe. Faptele și regulile sunt create prin definirea lor. JAVA este un limbaj de programare orientat-obiect, puternic tipizat, conceput de către James Gosling la Sun Microsystems (acum filială Oracle) la începutul anilor ʼ90, fiind lansat în 1995. Cele mai multe aplicații distribuite sunt scrise în Java, iar noile evoluții tehnologice permit utilizarea sa și pe dispozitive mobile gen telefon, agenda electronică, palmtop etc. În felul acesta se creează o platformă unică, la nivelul programatorului, deasupra unui mediu eterogen extrem de diversificat. Acesta este utilizat în prezent cu succes și pentru programarea aplicațiilor destinate intranet-urilor. Limbajul împrumută o mare parte din sintaxă de la C și C++, dar are un model al obiectelor mai simplu și prezintă mai puține facilități de nivel jos. Un program Java compilat, corect scris, poate fi rulat fără modificări pe orice platformă care e instalată o mașină virtuală Java (engleză Java Virtual Machine, prescurtat JVM). Acest nivel de portabilitate (inexistent pentru limbaje mai vechi cum ar fi C) este posibil deoarece sursele Java sunt compilate într-un format standard numit cod de octeți (engleză byte-code) care este intermediar între codul mașină (dependent de tipul calculatorului) și codul sursă.

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