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Question Answering System for an Effective Collaborative Learning ABSTRACT


Question Answering System for an Effective                     Collaborative Learning

ABSTRACT:

The increasing advances of Internet Technologies in all application domains have changed life styles and interactions. With the rapid development of E-Learning, collaborative learning is an important for teaching, learning methods and strategies. Interaction between the students also student with the teacher is important for student to gain knowledge.  In this paper, we introduce an effective question answering Q&A system for collaborative learning, which can act not just like a virtual teacher, but also virtual discussion for student. With the proposed system, brings a new Q&A system, student can attach their question when they want collaborate using collaborative learning capitalize on one another’s resources and skills. Students can ask their questions to the group when they want to collaborate with others, asking one another for information, evaluating one another’s ideas, then each of the answer will compare with encyclopedia data base.

Architecture of Question and Answering System

ARCHITECTURE:

EXISTING SYSTEM:
The existing system has the option to the student can attach their questions, and it directly check through the links, and it does not have the question answering knowledge base concept, acquires knowledge about students and uses the acquired knowledge. It may have the database in an article or a selected topic and it is not updated regularly. When a new question arrives it might be trouble. The students cant  attach their questions to the group when they want to gaining and sharing knowledge with others.

Disadvantage:

Ø   It does not not have an effective question answering Q&A system for collaborative learning.
Ø  Interaction of students and a teacher address a problem, the teacher cannot constantly online every time, and it is not possible for the teacher to deal with lots of question from students.

PROPOSED SYSTEM:
E-learning system, which is proposed here is based on knowledge base system which allows acquires knowledge about students and uses the acquired knowledge In this research, a system for online automatically answering students’ questions in the collaborative learning environment has been designed. The system operated upon the question answering knowledge base. In the knowledge base, pairs of question with its corresponding answer (Q&A sets) were collected through the process of students asking questions and other students will response the question with answering and evaluating one another’s ideas by vote. This representation is then compared with the representations of Wikipedia data base.
Advantage:
Ø  The Question answering knowledge base is the main advantage because it will update whenever the new one come.

Ø   This system has an effective question answering Q&A system for collaborative learning, which can act not just like a virtual teacher, but also virtual discussion for student.



MODULES:
  1. Student Agent Q
Student agent Q- It is interface between student and the system. Student can send his or her question and receive answers. Question analysis, query  generation. Q&A Browsing Component-when student meeting some difficulties or having no difficulties, a student can see what problems other students have encountered in learning now and in the past and see the answers or solutions the teacher offered by browsing the knowledge base.
Answer Generator is Several interfaces have been designed, to let students and teacher is able to interact with the system. The interfaces for the student to ask question and get answers

  1. Student Agent A
Is the component interface between student and the system provides an answer and voting question.In this component also provide similarity machine to match student answer with Wikipedia database, to ensure the answer considering biggest vote not necessary correct answer.

  1. Instructor Agent
Q&A Acquirer -If there is an unanswered question, the questions will temporarily stores at this component. When the teacher gets online, and then will manually answer the question with an interface (Instructor Agent). A new Q&A will be formed and saved to the Q&A knowledge base, after a question replied by the teacher.

  1. Question Answering Knowledge Base
A knowledge base provides a means for collected, organized, shared, searched and utilized information. Q&A knowledge base is a knowledge base where questions corresponding with answer. The knowledge will be accumulated and rich, through the process of student question answer and manually teacher answer.



System Requirements:
Hardware Requirements:

Ø  System                        : Pentium IV 2.4 GHz.
Ø  Hard Disk          : 40 GB.
Ø  Floppy Drive   : 1.44 Mb.
Ø  Monitor           : 15 VGA Colour.
Ø  Mouse             : Logitech.
Ø  Ram                 : 512 Mb.



Software Requirements:

Ø  Operating system        : Windows XP.
Ø  Server                          : WampServer/XampServer.
Ø  Coding Language       : PHP
Ø  Data Base                    : My-SQL


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