UWU Repository :: Browsing by Author "Priyanga, E.A.I."

Browsing by Author "Priyanga, E.A.I."

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Automated Collection of Customer Feedback Using Facial Expression and Machine Learning Techniques
(Uva Wellassa University of Sri Lanka, 2019-02) Jayarathna, H.M.P.P.; Priyanga, E.A.I.; De Silva, B.P.; Karunarathne, K.R.R.; Perera, R.M.; Senanayake, S.H.D.
Today, feedback of customers is crucial for businesses and organizations. It is the main method of identifying the customer service, quality and future improvements of the service. Nowadays most of the modern companies are focusing on digitalized approaches to collect customer feedback where the users can instantly rate the service. In order to take the feedback from customers in a digitalized way, there are some machines and methods available such as happy-or-not feedback machine. Analyzing the feedback is the only way of measuring the performance of the customer service officers. But the main problem of these systems is that they only allow the users to rate the service manually and such that it allows to add expressions as they wish, rendering it unreliable. Also, there is no way to measure the customer service and employees’ performance by computing. There are some methods to measure the customer service, such as crucial customer service metric. This metric can be used to measure the quality of the customer service. But, there is no automated and robust way to measure the customer service. This research introduces a device that applies the theories of the customer service metrics such as customer request volume, first response time, number of replies, customer satisfaction score etc. Machine Learning techniques are used to capture facial expressions and voice detection. The device facilitates measuring of customer service performance of employees autonomously by monitoring the employee involved in customer service and rates their results. The device captures the employees’ expressions and apply the values into the customer service metrics and produces the overall performance. It can measure the real rating of the customer service without the need for customer interaction. This device could be beneficial in any field where customer satisfaction is crucial. The effectiveness of this device are yet to be obtained after being applied on a real world scenario.
Concentration Device for Increasing Productivity Through the Improvement of Pomodoro Technique Using Colour Psychology
(Uva Wellassa University of Sri Lanka, 2019-02) Priyanga, E.A.I.; De Silva, B.P.; Jayarathna, H.M.P.P.; Karunarathne, K.R.R.; Perera, R.M.
Nowadays mobile devices play a considerable role in the technology revolution, and people have been especially addicted to the Social Medias through smart phones. One of the major challenges that people face today is time consumption due to this addiction on these activities in all day. Most of the time children are the major victims of this problem and they cannot keep the concentration on a particular work due to this addiction and this is a reason to reduce brain power as well as the memory losing. At present, some smartphone applications are used to solve the above problems. These applications are supposed to be developed to increase the concentration on work for a particular task to make it true. The major drawback of this mobile applications is losing the concentration, when other unnecessary notifications are appeared suddenly. Also the mind is impelling to use social media and other activities instead of doing current activity. There are several techniques for preserving the concentration such as yoga, build willpower etc. Among them highly recommend technique to increase concentration on work is called Pomodoro technique. Researchers have developed a device that help to retain the concentration on work by using this technique. This device contain RGB led, LED, small speaker and a push button. It is projecting spectrum colors, when the device in the deactivate mode. After pressing the button device follows that technique and make the user concentration on their work. Researchers have improved the technique from this device by using beep sounds and colour changes for each and every ten minutes of working. When worked time is completed device projecting spectrum colors using RGB led. Therefore, it is like a reward for the user. In the future, team members are focused on monitoring the user and make the device as an IOT device to store and get the reports with working statics.
A Customizable Virtual Reality Application for Enhancement of Method of Loci
(Uva Wellassa University of Sri Lanka, 2019-02) Perera, R. M.; Priyanga, E.A.I.; De Silva, B. P.; Karunarathne, K.R.R.; Jayarathna, H.M.P.P.; Senanayake, S.H.D.
The ability of memorizing more information can be considered as a measurement of intelligence, especially in the long-term memory. There are several ways to recall the memory such as mental memory tree, memory map, etc. These methods are based on the visualization of facts. The Loci method is one of the best methods which allows quick recall of information through visualization and the use of spatial memory. This method enables to memorize by linking information with various symbols. However, that method has been proven to be effective for centuries, it is still not widely adopted by most of the people due to the complications of understanding the technique. This difficulty of visualizing and usage of this method renders it less useful to a majority. Various studies on enhancement of method of loci have been done through the years. These studies are not providing customizable approach to the end-user. This research also enhances this application by enabling the end-users with the ability of customizing the solution making it applicable in a broad range. The solution introduced in this research is a Virtual Reality based software application developed using Unity3D Game Engine and Google Cardboard Virtual Reality Software Development Kit. It renders a memory palace along with the ability of customization allowing the user to store information along the palace path. The researchers have developed a mobile application which can be run on any device that supports Google Cardboard Virtual Reality. This application has the potential of aiding the user with the ability of memorizing various information with ease. This can be applied in a wide range of fields such as education and psychological treatment. The researchers have planned to further develop the application allowing users to use various mind palace templates according to their preferences.
Enhancement of English Language Speech and Comprehension Through Means of Virtual Reality for Sri Lankan Context
(Uva Wellassa University of Sri Lanka, 2020) Jayarathna, H.M.P.P.; Priyanga, E.A.I.; Jayasinghe, K.C.; Senanayake, S.H.D.; Wimaladarma, S.T.C.I.; Pathirana, K.P.P.S.
Speaking is one of the essential skills needed to be developed by any English learner. But the English curriculum taught by Sri Lankan schools often focuses on providing English vocabulary, grammar, and comprehension but pay less attention to enhance oral communication skills. This leads to a lack of practice in spoken English. Therefore, that affects a wide spectrum of applications such as business communication, presentation of creative work, etc. Other problems are anxiety, fear, lack of confidence, and nervousness of speaking English. This research focuses on designing a Virtual Reality (VR) based application for the above-mentioned problems and it facilitates a more convenient and yet natural experience through the use of techniques such as VR, Natural Language Processing (NLP), etc. to expand the English oral and understanding ability. This VR based solution will enhance the oral practice of the language and reduce the lack of confidence while improving the speech and comprehensive skills of Sri Lankan school students. Users can practice the application anywhere with common real-world scenarios such as conversing during a doctor’s appointment, buying dresses from a shop, etc. This game-based learning tool helps to evaluate the users and they can get scores according to their performance. At the same time, it facilitates to expand their English speech and comprehension ability. To measure the effectiveness of this application, user evaluation was done as a pre-experimental method with a one-shot case study with the use of pre-test and post-test design. A total of 30 local students following the local English language curriculum between grades eight and ten were selected as a sample for this purpose. The t-test analysis showed a value of 2.34 alongside a table value of 2.131 which depicts a clear correlation between the usage of the application. Significant enhancement of oral and comprehensive skills of the users was observed through the evaluation. Keywords: Virtual reality, Natural language processing, Voice recognition, Speech synthesis, Artificial intelligence
Sixty Seconds Robot - An Effective Development Approach for Robot Programming
(Uva Wellassa University of Sri Lanka, 2018) Priyanga, E.A.I.; Jayarathna, H.M.P.P.; De Silva, B. P.; Senanayake, S.
Nowadays, a lot of people are interested in robotics technology. However, most of them do not have a required knowledge in robotics and pogramming. Therefore, it has become a major barrier for innovations in robotics. However, if the basic process is automated, the entire problem can be solved without wasting programmers' effort and time. There are some visual programming software existed for programming in robotics such as Visuino, GLTINO, XOD.IO, etc. The main problem of those types of advanced software is that the learning difficulties at the beginner level. Some of those tools are not much user-friendly for novice learners. Some of them do not facilitate to identify hardware related errors in the robot. To overcome these barriers, an efficient software tool has been introduced in this research to design the basic structure of a robot. The automated IDE can identify hardware related errors. There are many types of robots, such as line follow, wall detect, arm based, etc. The user can select a template from the IDE for one of the types and customize it. Also, it can be used for tuning sensors, Proportional Integral Derivative (PID) generators, etc. In this solution, the user has only to customize the template, and then the code for Arduino circuit that is generated automatically. Since, this is a full GUI application to do Arduino robotics, this provides a platform for the beginners to learn robotics and make their own projects with less errors. Our future development is mainly focused on developing solid work based on a universal template for more Artificial Intelligent (AI) based robots, radio signal based robots, etc. Ultimately, those extensions can be used in simple applications to more advanced applications such as robot based toys, military tools, drone technology, etc. In addition to that, the researchers have planned to develop a community for that where anyone can create libraries for implemented robotics platforms.

Browsing by Author "Priyanga, E.A.I."

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