ERU - 2011

Permanent URI for this collectionhttp://192.248.9.226/handle/123/14688

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item: Conference-Extended-Abstract
A system for automatic music transcription
(2011) Abeykoon, H; Kaushalya, T; Akram, N; Weerawarana, S; De Silva, C; Dissanayaka, A
Music notations can be considered as very important information for musicians as well as for music fans, To recreate music which WOJ heard before, one has to know the musical notes which were included in that music recording. For many years computer scientists and engineers have tried to come up with various techniques to automate the task of finding out musical notes from a music recording. Many digital formats which facilitate storing and encoding of music information exist. Many statistical methods have been proposed in literature. But implementation specific detail is very scarce. With this paper we try to address that issue. In this research study, we have implemented a system to systematically address the challenges in performing automatic music transcription.
item: Conference-Extended-Abstract
AI techniques for decision making systems : a survey
Buddhika, KT; Jayamanne, DP; Wijegunawardana, PP; Gunasekera, RC; Perera, AS
Accurate Decision Making is a key aspect of a successful business organization. Manual decision making has become exceedingly difficult because of the availability of large data volumes and business complexity. This survey paper is intended to identify different technologies that have potential to be used in decision making systems, analyze current approaches which utilize those technologies and discuss advantages and disadvantages in using them for decision making in travel industry. The main decision making technologies involved in this paper are Artificial Neural Networks, Decision trees and Neuro-fuzzy systems.
item: Conference-Extended-Abstract
An analysis of BPMN 2.0 as a business process execution language
(2011) Sooriyabandara, E; Jayawardena, I; Gallaba, K; Pavalanathan, U; Pathirage, M; Nanayakkara, V;
The use of process modeling concepts in business scenarios enables designers to specify process requirements 0 in terms of interactions, enacted by human agents. Inter-operation of Business Processes at the human level, c rather than the software engine level, can be solved with the standardization of the Business Process Mode1 n and Notation (BPMN). BPMN 2.0 is a step forward for the whole business process management community j because it introduces not only a standard graphical notation, but also concise execution semantics for process ( execution, that can be used to enable the real execution of business processes which are modeled using it. ; In this paper, we analyze BPMN 2.0 standard with regard to its expressiveness as a Business Process , Execution Language and propose an implementation of a native BPMN 2.0 execution engine using Apache ODE's JACOB framework.
item: Conference-Extended-Abstract
An investigation on relationship between third party logistics user and provider at FMCG industry in Sri Lanka
(2011) Sugathadasa, PTRS; Rajapaksha, SS
The aim of this research is to investigate the relationship between Third Party Logistics (3PLJ user and provider at Fast Moving Consumer Goods (FMCG) industry in Sri Lanka from the users' perspective. The empirical research is used to investigate the user satisfaction on • Information technology in terms of using web enabled communication, IT based customer order management and IT based distribution management • Supply chain security in terms of providing physical security for material goods, providing information security and monitor environmental conditions associated with shipments • Green supply chain practices in terms of improving transportation efficiency and thereby reducing carbon emission, reducing the use of non recyclable materials and using energy efficient distribution centers. And it further investigates as to how information technology, supply chain security and green supply chain practices are affecting to the level of relationship between third party logistics user and provider. The results showed that 3PL users are satisfied with the above three factors provided by the 3PL providers in Sri Lanka. With the high level of satisfaction, these factors are affecting to the relationship between 3PL user and provider. The results of this study provide useful information especially for iPL providers to improve their services. Providers can be aware of the most frequently used services, the potential trends so that they can develop their capabilities for the future requirements.
item: Conference-Extended-Abstract
Analysis of strategic factors for the Sri Lankan textile and apparel industry
(2011) Wickramasinghe, GLD; Abdullah, N
The present study explores the perception of managers on Strength, Weaknesses, Opportunities and Threats (SWOT) of the Sri Lankan Textile and apparel Industry. It is believed that the success or failure of the strategic decisions mainly depend on the accurate analysis of strategic factors. The objective of the study was to investigate the perception of mangers on strategic factors of the apparel firms which affect their short term, medium term as well as long term businesses decisions and their day to day decision making processes. The population of the study consisted of textile and apparel firms operating in Sri Lanka. The twenty seven questions comprised all 4 categories of the SWOT were used for the questionnaire. Respondents were asked whether they agreed, disagreed or neutral to the statements developed based on SWOT. The questionnaire was sent to 100 textile and apparel firms. A random sample of 82 top level managers who were involved in decision making process of the above mentioned firms responded to the survey questionnaire. Statistical analysis was conducted to analyze the data. A series of interviews were also conducted across business entrepreneurs, top managers and executives in the industry. Results showed that the SWOT factors and their ranking. vary with the time and the factors that were considered few years back as strength has now been converted to weaknesses and some or the opportunities the industry enjoyed such as GSP+ has no longer an opportunity, but considered as a threat by some of the respondents.
item: Conference-Extended-Abstract
Application of genetic algorithm to optimize cut-order planning solutions in apparel industry
(2011) Abeysooriya, RP; Fernando, TGI
The fabric cutting process acts as the second major cost contributor of the apparel manufacturing process due to the high expenditure on marker making, fabric spreading and cutting, which is about 5-10% of the total manufacturing cost. Researchers highlight that an effective cut order plan results in reducing the abovementioned cost factors of cutting process, thereby reducing the entire manufacturing cost, to a greater extent. This study aims on optimizing the cut order plan solutions using Genetic Algorithm (GA) principles. Optimization algorithm was proposed based on GA principles and the computer-based program was introduced to execute the algorithm, under MATLAB environment. The performance of proposed algorithm was then compared with respect to the available methodologies of generating cut-order plans available in Sri Lankan Apparel industry.
item: Conference-Extended-Abstract
Application of near field communication: lounge access in air travel
(2011) Dantanarayana, NV; Jayasinghe, WGR; Sinthuja, R; Weeraddana, DM; Dias, SAD
Near Field Communication (NFC) is an emerging technology for short range wireless communication. Based on Radio Frequency Identification (RFID) technologyNFC provides a medium for the identi fication protocols that validate secure data transfer. It is designed to enable the exchange of various types of information between two NFC enabled devices in close proximity. NFC is considered to be useful in many areas namely payment, peer-to-peer communication, service initiation etc. In this paper we discuss how NFC is appliedfor access control. Since NFC is expected to be widely used in air travel in the near future, we focus our scope on using NFC for controlling access in a business class lounge at an airport. The design and implementation of different aspects have been carried out to maintain the effectiveness of access control and reduced cost. Features of the system ensure a unique personalized experience for the users.
item: Conference-Extended-Abstract
Augmented reality for mobile devices to show information of exhibits at a museum
(2011) Abeysinghe, C; Jayasiri, V; Sandaruwan, K; Wijerathna, B; Pasqual, AA
Augmented Reality (AR) is one of the emerging technologies being used for enhancing user experience in many applications. Specific devices for various tasks are been replaced by Smart Phones making them a unique platform to implement all functionalities in one device. In this paper we present a real-time AR framework for mobile devices that takes into consideration key technical challenges such as limited processing power and battery life. The framework is having four separate modules, Marker Detection, Identification, Camera pose calculation and Embedding visual information. A 2D pattern called a marker is used to uniquely identify the objects. The marker in the camera view is detected and tracked so that information contained in the marker is exploited. Tracked four corners of the marker are used to calculate the 6 DOF of camera position, which is further processed to place 3D graphics on the real scene with accurate rotation and translation. To demonstrate the capabilities of our AR Framework we have developed an application for iPhones, which highlights significant information in exhibits.
item: Conference-Extended-Abstract
Automated management information system for vehicle maintenance and repair workshop
(2011) Meharuban, M; Tennakoon, HB; Fernando, MSD
In a regular vehicle maintenance and repair workshop, service details, employee details and invoice details are manually maintained in paper and hence prone to human errors. Farther, the customer is required to provide vehicle details and customer information each time a customer comes to get a service from the workshop. During the time the vehicle is in the workshop, lot of details need to he collected from the labourers and supervisors, which are then manually entered in to systems. Accurate accounting and billing, the assessment of the actual labour cost, assurance of timely attendance to the issues and monitoring the progress are issues. The objective of this eMIS project is to automate such tasks. eMIS minimizes the manual entries thereby minimizing the human errors, ultimately leading to customer satisfaction. The automation of the eMIS system is achieved using RFID technology based solutions. eMIS provides subsystems to manage the proper use of spare parts, employees of the workshop and their attendance to tasks, and remote monitoring by the management as well as customers. eMIS system is currently being tested in a real environment.
item: Conference-Extended-Abstract
Automated teleprompter
(2011) Paris, MMSA; Udayanga, GWGKAN; Weerakoon, WMTCB; Mihiran, KWC
This project is focused on automating the current manual teleprompting system to achieve higher usability. Teleprompting is one of the most widely used techniques in many broadcasting systems. Nowadays, it is handled manually by a person. Our purpose is to automate the teleprompting scenario, so that less manual intervention is needed to operate the process. The project mainly consists of two sections; Teleprompter Automation and Graphical implementation for sign language to illustrate the speeches for the handicaps.
item: Conference-Extended-Abstract
AxiCo2: concurrency coordination runtime on top of -e Axis2
(2011) Bandara, L; Mudannayaka, S; Gunawardena, V; Weerasooriya, C; Perera, S
AxiCo2 is an Application Programming Interface designed to simplify the implementation of concurrency in local environment as well as in the invocation of web services. AxiCo2 thereby reduces many inherent difficulties undergone by developers in programming multi-threaded applications. The higher level Application Programming Interface provided by AxiCo2 hides complexities associated with concurrency constructs and web service invocations. As a framework for concurrency and coordination among threads, AxiCo2 provides a means of asynchronous communication among threads using "Ports ". AxiCo2 has a thread pool within itself eliminating inherent overheads of thread per task approach. Apart from being a high level Application Programming Interface to hide complexities of concurrency, AxiCo2 provides means to the developer to configure applications to respond to partial success through the variety of Receivers provided. Our main focus in this paper is to present the underlying concepts of AxiCo2. -
item: Conference-Extended-Abstract
Banana fibre extraction and use as a filler in natural rubber compounds
(2011) Lokubalasooriya, SU; Egodage, SM; Premachandra, BAJK
In this study banana fibres were extracted using three processes and advantages/drawbacks are discussed according to yield, extraction time, quality and properties of banana fibres obtained by each process. Three parts of banana tree (i.e. stem, mid rib and leaves) of two different types of banana trees (i.e. Seeni hesel and Aanamalu) have been analyzed. Two series of filled natural rubber compounds were prepared by changing flier loading from 0-50 phr using banana fibre and carbon black as fillers and physical properties were examined. Hardness increased with both banana fibre and carbon black loading. However, tensile strength decreased with banana fibre loading, while they increased with carbon black loading. These results suggested that the banana fibre could not be added as a reinforcing filler to replace carbon black in rubber compounds. However it can be added to rubber compounds as a diluent filler.
item: Conference-Full-text
Capacitance method based handheld device to measure the moisture content of static grain
(2011) Maxworth, AS; Porambage, PL; Mallawa, MTBP; Dias, KNG; Jayasinghe, JAKS
Quality of the grain depends on the interna! moisture content. Capacitance method was used to determine the moisture content of static grain with accuracy of ±0.9%. This paper represents the characteristics and operation of a handheld device which was made to give real-time moisture content readings based on the capacitance of the grain with the above accuracy for paddy.
item: Conference-Extended-Abstract
Cross domain authentication with open ID for web-services
(2011) Siriwardena, P; Attenayake, S; Mahagederawatte, H; Wijekoon, S; Wijenayake, D; Dias, G
Cross domain authentication for web services is important when web services in one organization are accessed from another. This paper presents the implementations of cross domain authentication in web service environment with OpenID. OpenID integration for web-services enables authentication to web-services regardless of the domains requester and resource provider belong to. It enables wider use of web-services among users since OpenID has become quite popular. It also enhances the security aspect in web service authentication, since it eliminated the use passwords for authentication between requester and resource provider.
item: Conference-Full-text
deBas: a sinhala Interactive voice response (IVR) system
(2011) Nallathamby, JD; Kariyawasam, KKR; Pullaperuma, HD; Vithana, DC; Jayasena, S
Although there are widely used Interactive Voice Response (IVR) systems in many languages today, there is no Sinhala language IVR system yet. This paper talks about deBas IVR: a complete Sinhala IVR with automatic speech recognition (ASR) and text-to-speech (TTS) synthesis modules that work in compliance with Media Resource Control Protocol (MRCP). It discusses some background literature, the process taken, the overall design and implementation aspects and the future work that can be carried out in this area. In the ASR component, training the acoustic model is done with SphinxTrain, and decoding with PocketSphinx, which are based on Hidden Markov Models (HMM). In the TTS component, AMoRA Sinhala TTS knowledge base is used, which uses Festival speech synthesis engine and a female diphonic voice, built using Festvox voice building tools. Asterisk is used as the IVR gateway and dial-plan interpreter. MRCPv2 protocol has been followed in developing the speech resources, which uses Session Initiation Protocol (SIP) for establishing controlled connections to external media streaming devices and Real-time Transport Protocol (RTP) for media delivery. The language model of the ASR component has been restricted to digits from 0-9 that are commonly used in IVR systems and the set of words used for our demo application. The Word-Error-Rate and the Sentence-Error- Rate of the ASR component are reported to be 31.4% and 54% respectively, as observed in our experiments. In addition to these, we also introduce a new intonation model that can be applied to any existing Sinhala diphonic voices.
item: Conference-Extended-Abstract
Demand side management for micro grids through smart meters
(2011) Wettasinghe, WADSL; Widisinghe, HR; Wijayasekara, PDDS; Wijesekara, SRMDTS; Hemapala, KTMU
A microgrid is a small scale power system consisting of distributed small power facilities such as solar power, wind power and micro-turbines. Because of some merits such as an eco-friendly system, good quality power supply and energy security, the microgrid has been researched and encouraged actively in many countries.For commercialization, the effective operation for the micro grid is very important. Microgrid power generation satisfies the power requirement of considerable number of off-grid consumers. Therefore consumers are limited to a low power usage. A Demand Side Management (DSM) system can be used for better power distribution among the consumers which is not in use nowadays. In this project the authors have made a network among consumers through Smart meters which are providing the ability to measure the real time power consumption and send those usage stats to the central server.
item: Conference-Full-text
Demand side management for micro grids throughs Smart meters
(2011) Widisinghe, HR; Wijayasekara, SRMDTS; Wettasinghe, WADSL; Hemapala, KTMU; Wijayasekara, PDDS
A microgrid is a small scale power system consisting of distributed small power facilities such as solar power, wind power and micro-turbines. Because of some merits such as an eco-friendly system, good quality power supply and energy security, the microgrid has been researched and encouraged actively in many countries. For commercialization, the effective operation for the microgrid is very important. Microgrid power generation satisfies the power requirement of considerable number of off-grid consumers. Therefore consumers are limited to a low power usage. A Demand Side Management (DSM) system can be used for better power distribution among the consumers which is not in use nowadays. In this project the authors have made a network among consumers through Smart meters which are providing the ability to measure the real time power consumption and send those usage stats to the central server.
item: Conference-Full-text
Developing a mobile robot simulator platform to test control applications
Weerasiriwardhane, CSDA; Siriwardhane, KAKT; Dassanayake, VPC
Most people are interested in building robots yet few try to simulate them in a computer to test and analyse the behaviours of robots prior to actually testing them physically. Our objective is to promote robot simulation and produce a tool that can aid in testing the robot control algorithms easier than testing on real robots, and record behavioural data of the robot more comprehensively. More emphasis is given to reducing variants caused by slip and friction to obtain more realistic results.
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Development of a 2DOF lower extremity exoskeleton robot
(2011) Rajapakse, KD; Suluxon, K; Perera, AMCK; Gopura, RARC; Lalitharathne, SWHMTD; Hemapala, KTMU;
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Development of an empirical model of a helically coiled steam generator for waste heat recovery
(2011) Premalhilake, MRLT; Rajapaksha, RPAKS; Hewa Bettage, MS; Perera, KKCK; Perera, PABAR; Ranaweera, RAMP
Discussions are going on today in many forums analyzing correlations between engineering applications and environmental pollutions. As a result of that, novel concepts such as green engineering have appeared in the engineering scenario. This paper describes a procedure developed for designing a helically coiled steam generator (SG) for recovering heat from the flue gas of a furnace. The design was applied to the lead melting furnace operating at Associated Battery Manufacturers (Ceylon) Ltd (ABM), Ratmalana, Sri Lanka, Most available literature deals with experimental investigations regarding correlations for heat transfer coefficients and pressure drops in helically coiled heat exchangers for both single phase and two phase flow regions. The paper presents a systematic procedure for designing a helically coiled SG through this case study.

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