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January 2014
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747 Reads
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10 Citations
In this paper, the security issues in online judge systems (OJ) will be discussed. The pros and cons in different sandbox approaches in open source OJs will be analyzed. After that, well explore other possibilities to build a more suitable sandbox for online judge purpose.
June 2012
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29 Reads
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3 Citations
In this paper, the disadvantages in the traditional online judge system were discussed and analyzed. And we introduced two new evaluation methods based on the requirement of the “Data Structure” course. Also in this paper, the advantages of new methods are analyzed.
January 2012
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98 Reads
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2 Citations
In this paper, the disadvantages in traditional item bank are analyzed, and traditional Online Judge is improved to fit the course teaching. Then, Algorithm Design and Analysis course is taken as an example to demonstrate how to apply COOJ to course teaching. After that, COOJ's advantages are analyzed against traditional Online Judge and Web-Based Collaborative Learning Platform.
December 2010
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93 Reads
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2 Citations
In this paper, a specific online judge for automata is designed. System architecture is developed according to it. Model representations, judging strategies and feasibility of automatic judge are also explored. Different judging methods are introduced corresponding to each model, ensures the accuracy and efficiency. The advantages when applied to education are also discussed at the end of this paper.
November 2010
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32 Reads
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2 Citations
This paper presents a method to develop course software aiming at autonomic learning, and introducing The Formal Languages and Automata Course Software as a case to study. Then it lists six patterns in the Finite Automata (FA) to Regular Expression (RE) conversion algorithm for learners at different levels. Finally it summarizes the keys in applying the idea of autonomic learning to course software.
December 2009
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10 Reads
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3 Citations
This paper presents a new concept for Computer Aided Instruction (CAI), Intelligent Course Software (ICS). ICS combines the latest outcome in disciplines of computer science and education. It is designed for both teachers and students, and it treats students as the main part of education activity. It covers all the learning process and can be used during class and after class. Under this concept's guidance, the requirement analysis of ICS is discussed, and implementations of 3 ICSs are mentioned. At last, advantages and disadvantages of ICS are given by comparing with traditional CAI.
... Universidad de Valladolid implements the first public Online Judge System "UVa Online Judge" in 1997 [1]. In 2001, how to apply OJ to the Computer Science education was discussed [2] [3]. ...
January 2012
... To avoid malicious attacks, most judging systems currently employ sandboxes to execute the programs uploaded by users [8]. Developers may require a method to determine whether the use of a sandbox is safe for this purpose. ...
January 2014
... The results of a study show that learner ability and enthusiasm have improved in solving problems using the C language while using the OJ Platform [15]. Two research studies have also shown that practicing programming through POJ platforms improves learners' performance and problem-solving abilities more than existing learning approaches [16,17]. Since POJ platforms play a pivotal role in learning programming, their use has boomed and offer many benefits. ...
June 2012
