Charles Adjetey - Academia.edu (original) (raw)
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Papers by Charles Adjetey
International Journal of Computer Applications, 2013
A B S T R A C T The usage of Computing Technology as a tool for learning is in many forms. In rec... more A B S T R A C T The usage of Computing Technology as a tool for learning is in many forms. In recent times there have been rapid advances in mobile technologies which have brought about a new term called mobile learning Mobile learning. Mobile learning is the use of handheld devices as a means of learning. This paper synthesizes and examines the impact of integrating mobile technology in tertiary education in Ghana for learning.
International Journal of Advanced Computer Science and Applications
Image Retrieval Systems (IRSs) are applications that allow one to retrieve images saved at any lo... more Image Retrieval Systems (IRSs) are applications that allow one to retrieve images saved at any location on a network. Most IRSs make use of reverse lookup to find images stored on the network based on image properties such as size, filename, title, color, texture, shape, and description. This paper provides a technique for obtaining full image document given that the user has some portions of the document under search. To demonstrate the reliability of the proposed technique, we designed a system to implement the algorithm. A combination of Optical Character Recognition (OCR) engine and an improved textmatching algorithm was used in the system implementation. The Tesseract OCR engine and Levenshtein Algorithm was integrated to perform the image search. The extracted text is compared to the text stored in the database. For example, a query result is returned when a significant ratio of 0.15 and above is obtained. The results showed a 100% successful retrieval of the appropriate file base on the match even when partial query images were submitted.
International Journal of Computer Applications
Many factors can be attributed to the high rate of failure in computer programming courses. This ... more Many factors can be attributed to the high rate of failure in computer programming courses. This paper studies the background of students, their fields of study and learning approaches applied to the study of programming courses. It is worth considering as a major factor and necessary to research into the causes of failure of students in programming courses from the learner perspective. Programming courses form part of the core concentration areas for students especially studying Information Technology (IT) and Computer Science as well as those other fields of study sandwiched with IT in an undergraduate degree programs.
Through the use of questionnaires, interviews and focused group, a survey was conducted using one hundred (100) students at the middle and end of the semester. The responses from the three groups of students were compared. Their opinions to the usefulness of their background, field of study and learning approaches toward programming courses were investigated. The needs and concerns about these key factors are highlighted in the survey and discussed thereby leading to the inferences made and then proposed recommendations on the learning approach in relation to the background and field of study of students in computer programming courses in order to improve understanding of programming by students, hence, reducing failure rates.
International Journal of Computer Applications, 2013
A B S T R A C T The usage of Computing Technology as a tool for learning is in many forms. In rec... more A B S T R A C T The usage of Computing Technology as a tool for learning is in many forms. In recent times there have been rapid advances in mobile technologies which have brought about a new term called mobile learning Mobile learning. Mobile learning is the use of handheld devices as a means of learning. This paper synthesizes and examines the impact of integrating mobile technology in tertiary education in Ghana for learning.
International Journal of Advanced Computer Science and Applications
Image Retrieval Systems (IRSs) are applications that allow one to retrieve images saved at any lo... more Image Retrieval Systems (IRSs) are applications that allow one to retrieve images saved at any location on a network. Most IRSs make use of reverse lookup to find images stored on the network based on image properties such as size, filename, title, color, texture, shape, and description. This paper provides a technique for obtaining full image document given that the user has some portions of the document under search. To demonstrate the reliability of the proposed technique, we designed a system to implement the algorithm. A combination of Optical Character Recognition (OCR) engine and an improved textmatching algorithm was used in the system implementation. The Tesseract OCR engine and Levenshtein Algorithm was integrated to perform the image search. The extracted text is compared to the text stored in the database. For example, a query result is returned when a significant ratio of 0.15 and above is obtained. The results showed a 100% successful retrieval of the appropriate file base on the match even when partial query images were submitted.
International Journal of Computer Applications
Many factors can be attributed to the high rate of failure in computer programming courses. This ... more Many factors can be attributed to the high rate of failure in computer programming courses. This paper studies the background of students, their fields of study and learning approaches applied to the study of programming courses. It is worth considering as a major factor and necessary to research into the causes of failure of students in programming courses from the learner perspective. Programming courses form part of the core concentration areas for students especially studying Information Technology (IT) and Computer Science as well as those other fields of study sandwiched with IT in an undergraduate degree programs.
Through the use of questionnaires, interviews and focused group, a survey was conducted using one hundred (100) students at the middle and end of the semester. The responses from the three groups of students were compared. Their opinions to the usefulness of their background, field of study and learning approaches toward programming courses were investigated. The needs and concerns about these key factors are highlighted in the survey and discussed thereby leading to the inferences made and then proposed recommendations on the learning approach in relation to the background and field of study of students in computer programming courses in order to improve understanding of programming by students, hence, reducing failure rates.