Site Explorer Server: an integrated, client-server, query system for Web sites Giancarlo Bongiovanni, Flavio Fontana, Stefano Borghetti Dept. Of Computer.

Slides:

Advertisements

Similar presentations

1. XP 2 * The Web is a collection of files that reside on computers, called Web servers. * Web servers are connected to each other through the Internet.

Advertisements

MS Windows 2000 PRO Widely used version of the Microsoft windows operating system Designed for use on computer workstations and portable computers Workstation.

Introduction to HTML, XHTML, and CSS

Review for Vocabulary Section 3 Quiz. What is the amount of data that can be sent in a certain amount of time? What is the amount of data that can be.

Usability Lab 2007 Corso Laboratorio di Basi Dati II Rome, 2007 Enea Usability Lab - C.R. Casaccia, Roma, Italy User Requirements & Cyber Enterprise Web.

Standard 1.02 Investigate uses of the Internet and World Wide Web.

PNS: Personalized Multi-Source News Delivery Georgios Paliouras(1), Mouzakidis Alexandros(1), Christos Ntoutsis(2), Angelos Alexopoulos(3), Christos Skourlas(2)

Macromedia Dreamweaver MX 2004 – Design Professional Dreamweaver GETTING STARTED WITH.

XP New Perspectives on Browser and Basics Tutorial 1 1 Browser and Basics Tutorial 1.

® Microsoft Office 2010 Browser and Basics.

2013 II Summer School September, ENEA, Rome, ITALY Web and multimedia database design Flavio Fontana ENEA Usability Lab, Department of Computer Science,

Google Chrome & Search C Chapter 18. Objectives 1.Use Google Chrome to navigate the Word Wide Web. 2.Manage bookmarks for web pages. 3.Perform basic keyword.

What is the Internet? Internet: The Internet, in simplest terms, is the large group of millions of computers around the world that are all connected to.

Project 1 Introduction to HTML.

Web- and Multimedia-based Information Systems. Assessment Presentation Programming Assignment.

XP Browser and Basics1. XP Browser and Basics2 Learn about Web browser software and Web pages The Web is a collection of files that reside.

Presentation Outline  Project Aims  Introduction of Digital Video Library  Introduction of Our Work  Considerations and Approach  Design and Implementation.

Modern Information Retrieval Chapter 2 Modeling. Can keywords be used to represent a document or a query? keywords as query and matching as query processing.

Internet – Part II. What is the World Wide Web? The World Wide Web is a collection of host machines, which deliver documents, graphics and multi-media.

Copyright 2003 The McGraw-Hill Companies, Inc CHAPTER Application Software computing ESSENTIALS    

Browser and Basics Tutorial 1. Learn about Web browser software and Web pages The Web is a collection of files that reside on computers, called.

Personalized Ontologies for Web Search and Caching Susan Gauch Information and Telecommunications Technology Center Electrical Engineering and Computer.

1st Project Introduction to HTML.

THE BASICS OF THE WEB Davison Web Design. Introduction to the Web Main Ideas The Internet is a worldwide network of hardware. The World Wide Web is part.

HTML 1 Introduction to HTML. 2 Objectives Describe the Internet and its associated key terms Describe the World Wide Web and its associated key terms.

Chapter ONE Introduction to HTML.

The Internet & Web Browsers Business Webpage Design Kelly Seale.

1 Introduction to Web Development. Web Basics The Web consists of computers on the Internet connected to each other in a specific way Used in all levels.

DATA COMMUNICATION DONE BY: ALVIN SAMPATH CARLVIN SAMPATH.

Internet Basics Dr. Norm Friesen June 22, Questions What is the Internet? What is the Web? How are they different? How do they work? How do they.

Tutorial 1: Getting Started with Adobe Dreamweaver CS4.

1 Web Basics Section 1.1 Compare the Internet and the Web Compare Web sites and Web pages Identify Web browser components Describe types of Web sites Section.

Information Need Question Understanding Selecting Sources Information Retrieval and Extraction Answer Determina tion Answer Presentation This work is supported.

Postacademic Interuniversity Course in Information Technology – Module C1p1 Contents Data Communications Applications –File & print serving –Mail –Domain.

Chapter 7 Web Content Mining Xxxxxx. Introduction Web-content mining techniques are used to discover useful information from content on the web – textual.

NASRULLAH KHAN.  Lecturer : Nasrullah   Website :

What is the Internet? Internet: The Internet, in simplest terms, is the large group of millions of computers around the world that are all connected to.

2012 Summer School September, ENEA, Rome, ITALY Web and multimedia database design Flavio Fontana ENEA Usability Lab, Department of Computer Science,

Microsoft Office XP Illustrated Introductory, Enhanced Started with Internet Explorer Getting.

HTML, XHTML, and CSS Sixth Edition Chapter 1 Introduction to HTML, XHTML, and CSS.

XP Browser and Basics COM111 Introduction to Computer Applications.

Information Retrieval

Search Engine using Web Mining COMS E Web Enhanced Information Mgmt Prof. Gail Kaiser Presented By: Rupal Shah (UNI: rrs2146)

NASRULLAH KHAN.  Lecturer : Nasrullah   Website :

The World Wide Web. What is the worldwide web? The content of the worldwide web is held on individual pages which are gathered together to form websites.

HTML Concepts and Techniques Fifth Edition Chapter 1 Introduction to HTML.

CSCI-235 Micro-Computers in Science The Internet and World Wide Web.

The Internet is a Big Collection of Computers and Cables. -"interconnection of computer networks". Millions of personal, business, and governmental.

The Internet What is the Internet? The Internet is a lot of computers over the whole world connected together so that they can share information. It.

Internet Searching the World Wide Web. The Internet and the World Wide Web The Internet is a worldwide collection of networks that allows people to communicate.

Web Design Terminology Unit 2 STEM. 1. Accessibility – a web page or site that address the users limitations or disabilities 2. Active server page (ASP)

Week-6 (Lecture-1) Publishing and Browsing the Web: Publishing: 1. upload the following items on the web Google documents Spreadsheets Presentations drawings.

(class #2) CLICK TO CONTINUE done by T Batchelor.

Introduction to Information Systems SSD1: Introduction to Information Systems Unit 1. The World Wide Web Unit 2. Introduction to Java and Object- Oriented.

HTML PROJECT #1 Project 1 Introduction to HTML. HTML Project 1: Introduction to HTML 2 Project Objectives 1.Describe the Internet and its associated key.

Data mining in web applications

Chapter 10: Web Basics.

Project 1 Introduction to HTML.

Chapter 1 Introduction to HTML.

Warm Handshake with Websites, Servers and Web Servers:

Evolution of Internet.

E-commerce | WWW World Wide Web - Concepts

Project 1 Introduction to HTML.

E-commerce | WWW World Wide Web - Concepts

Web Engineering.

CHAPTER 3 Architectures for Distributed Systems

Microsoft Office Illustrated Introductory, Premium Edition

Web Page Concept and Design :

Introduction of Week 11 Return assignment 9-1 Collect assignment 10-1

Web Mining Department of Computer Science and Engg.

Presentation transcript:

Site Explorer Server: an integrated, client-server, query system for Web sites Giancarlo Bongiovanni, Flavio Fontana, Stefano Borghetti Dept. Of Computer Science, University of Rome, La Sapienza ENEAs Usability Lab Site Explorer Server: an integrated, client-server, query system for Web sites Giancarlo Bongiovanni, Flavio Fontana, Stefano Borghetti Dept. Of Computer Science, University of Rome, La Sapienza ENEAs Usability Lab

Summary: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works Summary: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works

Internet is the biggest and the most widespread network Millions of heterogeneous users Billions of information sources provided by Web Exponantial increasing of Web site count Increasing of network access by end users Increasing of web browser funtionalities Increasing of search engines performs 33 millions in the United States, 1 million and 300 thousand in Germany, 371 thousand in Italy The users that use Internet since more than 3 years are only the 11% Information Search in Internet 158 Milions of accesses in Junary 99 A forecast of 200 millions in 2000 Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works

Users problems related to information search: Many users dont know the Web information model Users have problems to find a valid tools able to locate the relevant information Users have problems to describe searched information using right and concise terms Users have problems to use advanced search tools (i.e. Site Explorer Server is more difficult to use rather than browser) Il problema della ricerca delle informazioni sul Web Issue: Information search in Internet could be a problem for particular type of users? Today a better scenario Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works

Site Explorer v1.1 IR Implementation of a Client/Server tools able to make Web IR using Java, experimented and tested ENEA Tool integrated with browser Analisi dei requisiti dellutente Network service New search and exploration tools New and alternative Web approach to traditional browser Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works

Information Retrieval Systems Struttura generale Gerard Salton, Introduction to modern information retrieval, Ed. 1983, McGraw-Hill, Inc. User Documents Data structure in pre-definded language Result Query Similar Indexing Query formulation by user Indexing process Result formulation Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works

Information Retrieval Systems Formulazione della richiesta Query formulation is a list of terms able to express and summarize the searched argument Boolean Systems combine the terms using boolean operators: and or andnot Extended boolean systems use additional operators: nearness of terms cutting of terms search using particular field In Ranking systems query formulation is made using natural language phrases Operatori booleani Information and retrieval Information or retrieval Information andnot retrieval Examples: Operatori estesi Ranking Information adj retrieval Inform* Information [in titolo] Examples: Uman influence in Information Retrieval systems Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works

Indexing is a process to analyse documents and to provide a short contents rapresentation. Data structure to contains document rapresentation A file where every record describe the releted record with each particular term Information Retrieval Systems Indicizzazione Rapresentation is based on a keyword vector. These keywords are choosen by a manual process or are extracted by an authomatic process Example: Information Retrieval Data Structure & Algorithms Example: List, tree, index file, etc. Terms vector Data structures Example: Iverted indexing Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works

In traditional IRS the result is a potential relevant document list Explicit measure of relevance level (score) Information Retrieval Systems Formulazione e presentazione del risultato William B. Frakes, Ricardo Baeza- Yates, Information Retrieval Data Structure & Algorithms, Ed. 1992, Prentice Hall, Inc. Gerard Salton, Introduction to modern information retrieval, Ed. 1983, McGraw-Hill, Inc. Documents ordinated by relevance level Resuls order Dynamic presentation (results manipulation) Graphic and direct method presentations Use of windows (different way to present the results) Multimedia integration New features Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works

Information Retrieval Systems Calcolo dello score Compute of a term weght for a document Term frequence in the document * term relevance weigth in the collection Key point in score compute Compute the score: Boolean system: use SOP method Ranking system: use particular formula. Information Retrieval Systems Calcolo dello score Score compute is focused to measure the relevance of specific terms in specific documents A method to weight the term relevance in the whole document collection Frequence normalization for particular document collection Example: (Sparck Jones, 1972) (Dennis, 1967) Example: (Croft, 1983) (Harman, 1986) Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works

I motori di ricerca Web interface (Query and results) Index DB Authomatic indexing system SIMILAR Web pages New functionality in the most popular search engine: Sites classification Integration of new advanced search services to search information in particular format (picture, sounds, MP3, etc.) not much search engines provide a document score Migration from search service to on-line seller guides Media Matrix - June 1999 Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works

Source: FIND/ITPD, III, Gennaio NII project, supported by DOIT, MOEA Internet Da trentanni ad oggi 30 years 1969 First transmission on ARPANET 1978 ufficialization of TCP/IP 1991 World Wide Web 1992 ISOC 1983 NSFNet 1999 Inet99 Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works

30 years 1969 First transmission on ARPANET 1978 ufficialization of TCP/IP 1991 World Wide Web 1992 ISOC 1983 NSFNet 1999 Inet99 Source: FIND/ITPD, III, Gennaio NII project, supported by DOIT, MOEA Internet Da trentanni ad oggi Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works

Source: FIND/ITPD, III, Gennaio NII project, supported by DOIT, MOEA Internet Da trentanni ad oggi 30 years 1969 First transmission on ARPANET 1978 ufficialization of TCP/IP 1991 World Wide Web 1992 ISOC 1983 NSFNet 1999 Inet99 Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works

Source: FIND/ITPD, III, Gennaio NII project, supported by DOIT, MOEA Internet Da trentanni ad oggi 30 years 1969 First transmission on ARPANET 1978 ufficialization of TCP/IP 1991 World Wide Web 1992 ISOC 1983 NSFNet 1999 Inet99 Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works

Future Tracks: Research and technologies Educational The Public Administration E-commerce Internet Verso il domani Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works

Site Explorer Server v2.0 Java Main features Multithread Object-oriented Dynamic Portable Platform independence Technologies Applet High functionalities for networking Oriented to Graphic User Interfaces implementation Oriented to Client/Server systems implementation Client Server Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works

Site Explorer Server v2.0 Obiettivi able to work directly on Web able to helps the user to find interesting documents on Web Goals - To implement a new system: able to integrate: search functions alternative approach rather than browser management functions user position to access to the Web etherogeneous data using a unique way. with an high usability degree Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works

Site Explorer Server v.2.0. AClient/Server system, implemented using Java, able to make automatic Web site analyse, and to provide, as result, the tree site structure where the root node represents the site home-page. Focused on information search and retreiving by keywords search approach an easy information-filtering service a score computation service user management Site Explorer Server v2.0 INTERNET Web site User Interface Site Explorer Server A network service An accessible (open to everybody) open and multi-platform service Additional features Client Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works

Internet Web site #1 Web site #2 Web site #n HTTP SEP HTTP Server (SES) SEC Browser(SEJA) SEJA applet Windows User 2 Unix User 3 Mac-OS User mUser 1 Client/Server system The Server (SES) is a Java application The Client (SEJA) is a Java applet SES and SEJA speak using a dedicated Application layer protocol (SEP) Site Explorer Server v2.0 Architettura esterna e configurazione Technical features Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works

Query selector process HTTP connection process Links extraction process Contents extraction process Keywords analisys process Score process Result builder Result-display process Web sites USER Site Explorer Server v2.0 Funzionamento e processi Client user interface Next sites page Query Result Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works

Site Explorer Server v2.0 Main Connection request (client) ComunicatorFunction manager RetrieverUser manager Internet Query (client) Results (client) Site analyser Page analyser full-text document analyse Links cheking using connection requests HTML 4 oriented Site Explorer Server v2.0 Sottocomponenti del SES Features Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works

Three score level: Level 1 score. Its based only on the keywords items inside the Web page. Level 2 score. Its also based on the keywords distribution inside the whole Web site. Level 3 score. Its based also on the position of keywords items inside the Web page structure. Site Explorer Server v2.0 Lo score di Site Explorer Server Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works

Site Explorer Server v2.0 Site Explorer Java Applet GUI Tree structure area Retrieved object in Web site Multimedia area Textual area Displayed result Menù-bar Tool-bar State indicator State bar

Site Explorer Server v2.0 Site Explorer Java Applet GUI

Site Explorer Server v2.0 Site exploration Connessione al server

Site Explorer Server v2.0 Site exploration Indicatore di connessine attiva

Site Explorer Server v2.0 Site exploration New site analyse request

Site Explorer Server v2.0 Site exploration Use of a favorite site analyse request

Site Explorer Server v2.0 Site exploration Use of a pre-defined site analyse request

Site Explorer Server v2.0 Site exploration Receiving result

Site Explorer Server v2.0 Site exploration Results navigation Relevat page indicator Score level

Site Explorer Server v2.0 Site exploration Results browsing

Site Explorer Server v2.0 Site exploration

Site Explorer Server v2.0 Il pilot-center Lo Usability Lab (Ulab), istituito nel 1992 presso il pilot- center del progetto ESPRIT III VENUS e svolge unattività di Ricerca & Sviluppo nel campo delle interfacce visuali avanzate a basi di dati e sistemi informativi multimediali in rete. Macchine di sviluppo e test: Intel Pentium II 350Mhz / Windows 98 (Netlab) Intel Pentium MMX 166Mhz / Windows 95 (Fontanaulab) AMD K6 300Mhz/ Windows 98 (Ulab) Sun Sparc Station 5 / Unix Solaris 2.5 (Venus) Sun Sparc Station 10 / Unix Solaris 2.5 (Dafne) Strumenti software: JDK v1.1.6, JDK v1.1.7, JDK v1.1.7a, JDK v1.17b, JDK Edit+, Netbeans Java Swing v1.0.3, Java Media Framework v1.1 Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works

A strong system good/exellent usability degree A good response time (Analyse and result build) Site Explorer Server v2.0 Conclusion and experimental results 50 users selected using ENEA/VENUS methodology: random user. Occassional system use. Professional users: System user related to their work. Expert user. Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works

Site Explorer Server v2.0 ENEA applications G7 Global-Inventory project A project data card collection Site search engine vs Site Explorer Server G7 Global-Inventory project A project data card collection Site search engine vs Site Explorer Server Plus - Prosoma LinkUp Service A multimedia data card collection Plus - Prosoma LinkUp Service A multimedia data card collection Experimental sites: ULAB sites Experimental sites: ULAB sites Future testing: Virtual Lab Site FAD Future testing: Virtual Lab Site FAD Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works

Site Explorer Server v2.0 e altri sistemi esistenti LinkBot - Analisi dei link Site Explorer - Costruzione di un albero per un singolo sito SurfMap JavaNavigator PersonalSearch: applet come motore di ricerca per un sito Virgilio - Funzione di ricerca su un sito MerzeScope: applet di navigazione su un grafo con funzione di ricerca per un solo sito Esplorazione dei link Applet per navigazione su mappa Ricerca su un sito Navigazione su mappa e funzione di ricerca HyperSystem Net40 - esplora un sito e ne da una rappresentazione ad albero permettendo la navigazione Esplorazione e rappresentazio ne di un sito Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works

The insertion of a new system agent able to make automatic off-line Web site analysis to suggest to the user, using his profile information, a set of query about specific themes. Site Explorer Server v2.0 Future works A totally modular internal architecture to be able to add new modules and news functions in the simplest and most dynamic way. The implementation of a user profile system based on the users interests constantly updateable by a feed-back technique. Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works Index: Introduction Information Retrieval Systems and keyword score Search engines Internet now and the future Java Site Explorer Server v2.0 Conclusion and experimental results Future works