File Transfer Web Application

Aim is to develop a web application using java web framework. Description: Develop a web application in 3 tier architecture involving user interface, controller and database. The user interface will be a web page hosted on a server. The web page consists of both static and dynamic content. All the data required for the application is stored in database tables. Controller accesses the data from the database and provides it to the user through user interface (web page). Web page: The webpage serves as user interface to the application. Web page is developed using Jsp, HTML, Java Script and Ajax. Controller: The controller serves as the communicating interface between web page and database. Controller serves the data to the user based on the user request. Controller is developed using Java 7, Java Servlets, and JDBC. Database: Database is used to store all the required data for the application. Database tables are designed according to requirement and developed using SQL. Server: Server is used to host the application. The developed web application is deployed onto server. Apache Tomcat is the application server for the application. Environment: Java 7, HTML, Java Script, JDBC, Ajax, Apache Tomcat, Derby Database, SQL

Real time speech translator

This document is written to report on my work on the Real Time Voice Translator Project, the project I carried out as my final thesis project during the academic year 2007‐2008. During this period I have been working in the Research and Development Center (RDC) for Mobile Applications, a department of the Czech Technical University (CTU) in Prague. In the RDC I was a member of the Automatic Call Center Project (ACC Project) team, and within it, I was assigned to carry out the Real Time Voice Translator Project. The Automatic Call Center Project (ACC Project), now renamed to Voice2Web Project, is a project carried out by the Research and Development Center. The RDC is a department inside the Electro Technical Faculty of the CTU that carries out Research and Development projects regrding the Information Technologies (IT). Some of its partners are IBM, Vodafone and Ericson, who the RDC is doing projects for.  The ACC Project began on 2007 and its aim is to develop Voice Applications, within the IBM and RDC agreement, using IBM Voice Technologies and whatever open standards or open source software. IBM is an ACC Project partner and provides financing for it. It also provides hardware and software licenses to the ACC Project and gives us support. The members of the ACC Project are developing several Voice Applications at the same time, all them following the ACC Project purposes.   Although this document is focused on the Real Time Voice Translator Project, it will also explain in the introduction some aspects of the ACC Project. This is because the Real Time Voice Translator Project has a lot of points in common with it and it is worth, to understand it well, understand some points of the ACC Project as well. 

RACOFI: A Rule-Applying Collaborative Filtering System

In this paper we give an overview of the RACOFI (Rule-Applying Collaborative Filtering) multidimensional rating system and its related technologies. This will be exemplified with RACOFI Music, an implemented collaboration agent that assists on-line users in the rating and recommendation of audio (Learning) Objects. It lets users rate contemporary Canadian music in the five dimensions of impression, lyrics, music, originality, and production. The collaborative filtering algorithms STI Pearson, STIN2, and the Per Item Average algorithms are then employed together with RuleML-based rules to recommend music objects that best match user queries. RACOFI has been on-line since August 2003 at http://racofi.elg.ca.

Secure telemedicine system for home health care

This thesis describes a low-cost telemedicine system that provides home based patient care by linking patients with skilled nurses at the home care agency. The system employs compact vital signs sensors and a two-way real-time video conference over telephone lines. It stores the patient\u27s medical records, still images and enforces clinical pathways during the televisits. Physicians, paramedics, and nurses can then have access to these records from anywhere, securely, through a Web browser.;This document discusses the underlying technologies, the features implemented in the prototype, and the methodologies used in developing the software. The prototype uses the Enterprise Java Bean [EJB] architecture and emphasizes security and scalability. Preliminary experience of its use is presented. A performance analysis of the system\u27s behavior if it were scaled up has also been done

Web Auction System

Auctions are perhaps the oldest market places in history. For centuries, people were allowed to place a price on an item for sale. The person who pledged the highest amount won. Although there were no legal contracts and laws in place, the underlying concept remained the same; both buyer and seller gained something from the transaction. This Computer Science Masters project is aimed at designing an online auction system that is scalable, robust, and flexible to meet the increasing demands of secure and efficient transactions. This project proposes the use of a three-tier architecture system to conduct online auctions in order to ensure reliability, flexibility and scalability. The system uses HTML and JSP for the front end, WebLogic server as the middle tier, and Oracle as the backend database. This online auction system is built to ensure smooth and efficient transactions between buyers and sellers. This report describes the basic concepts underlying auctions, specifically online auctions. The report goes on to explain in detail the design and logic of the system by incorporating figures and screen shots for illustration

Long Term Assessment of Object Strength in a Web Service as Managed by the Garbage Collection in Java Based Services

Garbage collection is proving to be an important feature that supports high-performance web services, especially those running data-intensive applications. Due to the use of the object-oriented paradigm, many applications have increasingly opted for the dynamic memory allocation method of assigning their objects in computer memory. During program execution, the application allocates its objects to a memory space called a heap and constantly references these objects within that memory space. With the passage of time, if the objects are not referenced, they become weak/dead to the extent that they can no longer be referenced by an application which allocated them. In such a scenario, the application is required to allocate new objects to a heap in order to continue performing its functions. And, there must be a garbage collection mechanism to remove the dead/weak (unreferenced) objects from the memory heap so that the memory space can be reclaimed and dynamically allocated to other application objects. Java as a Virtual machine, performs memory allocation and reclamation by itself thereby allowing the programmer to concentrate only on the functionality of the application. In other words, the developer is not concerned about how the memory will be managed during the program execution because that will be the duty of the Java language executing on Java Virtual machine. Therefore, for Java to effectively manage the computer memory, it uses five garbage collection mechanisms which will be explained in detail in the introduction section. Most of the garbage collections are triggered based on the objects’ lifetime predictions set by the developer of the garbage collection algorithms. None or very few consider the strength of the objects that are no longer referenced in the heap. For example, some objects may still be strong enough that they can be referenced by the application but they are collected anyway because they have reached their predicted age threshold. Garbage collection mechanisms also vary when used in a different framework other than the traditional (standalone) one. For example, garbage collection in distributed systems becomes more complicated as compared to the traditional garbage collection performed in standalone systems. Similarly, garbage collection in a web-service framework has slight differences as compared to the local/standalone systems due to the inclusion of web service technology elements. In this paper, the goal is to strive to determine the strength of objects that are no longer referenced by an application in a web service as managed by Java-based services; in relation to the performance of a web application