Browsing by Author "Yifiru, Martha"

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    Application of Amharic Speech Recognition System to Command and Control Computer: An Experiment with Microsoft Word
    (Addis Ababa University, 2003-07) Yifiru, Martha; Birru, Tesfaye (PhD); Berehanu, Solomon (PhD)
    This stud y explored the possibility of developing Amharic speech input interface to command and control Microsoft Word . Toward s this end, literature were reviewed on speech recogn ition, application of speech recognition, HMM and its application in speech rec ignition , Amharic speech recognition, HTK and human-computer interaction. Speech input interface require s speech recognition system. To develop and te st the required Amharic speech recognition system speech data were recorded from 26 people (10 female and 16 male) in the age range of 20 to 35 . 76 .9% of the recorded data were used to train the recognizer and the remaining data were us ed for testing the performance of recognizer. Two (fixed variance and variable variance based models) HMM-based , speak er independent, small vocab unary, isolated Amharic word recognizer were enveloped . The perform acne of these recognizer was tested using the test data. Although both of them recognized all the test data correctly, the performance of recognizer with variable variance performed better than the recognizer with fix ed variance in live environment. Thus, the recognizer with variable variance was further consid ered for the development of the prototype Amharic speech input interface system. Speech input interface requires communication interface that sends the recognized command word to the application, Microsoft Word in this case . In this stud y the communication interface was written using Visual Basic 6. To test the perform an e of the system as a whole, 18 randomly selected command words were given to 6 people (3 command words for each) and these people were asked to command Microsoft Word orally. The system performed 16 commands accurately and only two command words were wrongly recognized and thus Microsoft Word performed wrong actions. Fin all y, the prototype speech input int interface m d eve loped in this experiment was integrated with Microsoft Word as a Macro for regular use. The result of the experiment showed the feasibility of developing Amharic speech input interface. Based on the res ult of the study and what ha s been learn ed in the course of the re search recommend at ions for further study were forwarded.
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    Application of Amharic Speech Recognition System to Command and Control Computer: an Experiment with Microsoft Word
    (Addis Ababa University, 2003-07) Yifiru, Martha; Birru, Tesfaye; Berehanu, Solomon; Taddesse, Kinfe
    This study explored the possibility of developing Amharic speech input interface to command and control Microsoft Word. Towards this end, literature were reviewed on speech recognition, application of speech recognition, HMM and its application in speech recognition, Amharic speech recognition, HTK and human-computer interaction. Speech input interface requires speech recognition system. To develop and test the required Amharic speech recognition system speech data were recorded from 26 people (10 female and 16 male) in the age range of 20 to 35. 76.9% of the recorded data were used to train the recognizers and the remaining data were used for testing the performance of recognizers. Two (fixed variance and variable variance based models) HMM-based, speaker independent, small vocabulary, isolated Amharic word recognizers were developed. The performance of these recognizers was tested using the test data. Although both of them recognized all the test data correctly, the performance of recognizer with variable variance performed better than the recognizer with fixed variance in live environment. Thus, the recognizer with variable variance was further considered for the development of the prototype Amharic speech input interface system. Speech input interface requires communication interface that sends the recognized command word to the application, Microsoft Word in this case. In this study the communication interface was written using Visual Basic 6. To test the performance of the system as a whole, 18 randomly selected command words were given to 6 people (3 command words for each) and these people were asked to command Microsoft Word orally. The system performed 16 commands accurately and only two command words were wrongly recognized and thus Microsoft Word performed wrong actions. Finally, the prototype speech input interface system developed in this experiment was integrated with Microsoft Word as a Macro for regular use. The result of the experiment showed the feasibility of developing Amharic speech input interface. Based on the result of the study and what has been learned in the course of the research recommendations for further study were forwarded.
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    ASSESSING THE USAGE OF ICT: IN ETHIOPIAN MANAGEMENT INSTITUTE
    (2017-10-02) Tesfaye, Natnael; Yifiru, Martha
    These days managements in every organization are operating in highly dynamic and competitive environment. Thus, the current management training institutions are starting to understand the relevance and importance of information and communication technology. They are beginning to appreciate the use of ICT in any organization. This study tried to assess the current day to day usage of information and communication technology (ICT) and by how much work burden is resolved using ICT in Ethiopian management institute. Objective: The general objective of this study is to assess the usage of information and communication technology in Ethiopian management institute. Methodology: this study adopted a descriptive survey research design. The target population under the study was the employee of Ethiopian management institute. To this end, the necessary data were collected from 46 core employee (development program department) and 53 support employee (IT department, Audit, HRM, Women and youth, PR, Accounting and finance, Procurement and supply management and strategic) were included in this study. Self administered questionnaires and interviews were used and SPSS version 21 was utilized to analyze quantitative data, frequency and percentage were used to illustrate the study population. Conclusion: gaps or problems identified in assessing the usage of ICT were the institute have computers and some other ICT equipment like copiers, printers and scanners the major barrier to use ICT is lack of skill and unaware of what ICT equipments are found in their institute Recommendation: the study recommended that administrators should work hard to ensure the institute is equipped with latest ICT equipment that could be useful in promoting e- learning and should also consider regular training session to improve the usage of ICT. Further research direction also recommended enhancing usage of ICT in Ethiopian management institute.
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    ASSESSMENT OF ERP SOFTWARE UTILIZATION IN ETHIOPIA CONSTRUCTION DESIGN AND SUPERVISION WORKS CORPORATION
    (Addis Ababa University, 2017-05-03) W/Mariam, Netsanet; Yifiru, Martha
    Enterprise resources planning (ERP)-a software architecture that facilitates the flow of information among the different functions within an enterprise and provides the backbone for an enterprise-wide information system. At the core of this enterprise software there is a central database which draws data from and feeds data into an integrated application that operate on a common computing platform, thus standardizing business processes and data definitions into a unified environment. Therefore, the major objective of this study is to assess the challenges of implementing Enterprise resources planning (EPR) in Ethiopia Water and Energy Design and Supervision Works. As result, the research has a descriptive nature which elaborates the existing phenomenon as it exists. Specifically, for the assessment of ERP implementation and challenges in Water and Energy Design and Supervision Works in this study the Simple random sampling method was applied. Besides, supervisors and officers who are involving in ERP implementation were data source. The data was collected using questionnaires from a sample population and interview was conducted for managers. Accordingly, 120 employees were taken as a sample by using simple random sampling technique and accordingly questionnaires were distributed. The collected data was analyzed using SPSS (Statistical Package for the Social Sciences) version 20. Consequently, results show that the deployed ERP system is positively perceived and used by the organization. In addition, problems which hinder the practice of the system were identified. As a result, lack of awareness, shortage of training conflicts of interest among departments and poor IT infrastructures are among the major problems. Hence, the researcher has recommended that the company should re-consider its system utilization, since there are important features not yet utilized. Moreover, the company should also revisit whether in considering the required business requirements through customization, In addition the organization has to implement adequate training and development in order to equip end-users. Finally, the organization informing the user about ERP in advance provide adequate training, ensure the commitment of senior managers, reduce the level of conflict among department, and build IT infrastructure are among the major solutions that help the organization to address ERP implementation challenge.