Browsing by Author "Gallage, M"

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    item: Article-Abstract
    Building a WordNet for Sinhala
    Wijesiri, I; Gallage, M; Gunathilaka, B; Lakjeewa, M; Wimalasuriya, DC; Dias, G; Paranavithana, R; De Silva, N
    Sinhala is one of the official languages of Sri Lanka and is used by over 19 million people. It belongs to the Indo-Aryan branch of the In-do-European languages and its origins date back to at least 2000 years. It has developed into its current form over a long period of time with influences from a wide variety of lan-guages including Tamil, Portuguese and Eng-lish. As for any other language, a WordNet is extremely important for Sinhala to take it into the digital era. This paper is based on the pro-ject to develop a WordNet for Sinhala based on the English (Princeton) WordNet. It de-scribes how we overcame the challenges in adding Sinhala specific characteristics which were deemed important by Sinhala language experts to the WordNet while keeping the structure of the original English WordNet. It also presents the details of the crowdsourcing system we developed as a part of the project - consisting of a NoSQL database in the backend and a web-based frontend. We con-clude by discussing the possibility of adapting this architecture for other languages and the road ahead for the Sinhala WordNet and Sin-hala NLP.
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    item: Thesis-Full-text
    Development of energy centre cooling plant
    Gallage, M; Udawatta, L
    This work study reviews the conceptual development of optimization strategies of an Energy Centre based on operational task of daily thermal load contours and interaction of weather profiles of the environment in the selected area of the project. The weather profile analysis was primarily done by the interactive plotting of temperature/humidity sensor data against historical data. Gray Model was also employed in order to predict much accurate data patterns in the fuzzy areas of weather prediction process. However, by introduction of genetic algorithm on the historical samples would able to predict the anticipated weather profile more accurately and thereby the thermal load required for the future trend on the following day. The current thermal energy storage (TES) technologies and their applications using the traditionally available methods are the common practice of any ice storage design in the industry; however in this analysis dedicated low freezing media (Glycol) is used to chill the common chilled media (water) and also the chilled media is used as storage medium with phase change. Latent heat storage on the other hand, is a young and developing technology which has found considerable interest in recent times due to its operational advantages of smaller temperature swing, smaller size and lower weight per unit of storage capacity. Design methodology and its prime results of simulation show the effectiveness of the proposed solution for an Energy Centre for efficient operation.