78 research outputs found

    Anomalous event detection for pinger data

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    The PingER (Ping End-to-end Reporting) Malaysia is an extension of the main PingER project with the objective to monitor and collect data of internet performance specifically for sites in Malaysia and also to cover the region of South East Asia. PingER Malaysia initiative is collaboration between SLAC (Stanford Linear Accelerator Center), National University of Sciences and Technology, University Malaysia Sarawak, University Technology Malaysia and University of Malaya. Apart from the main goal of data collection and monitoring of Internet performance, another equally important goal of the PingER Malaysia initiative is to create as much as research opportunity as possible in order to solve existing problems, and/or improve current performance one of which is anomalous event detections for PingER data. This project investigates into detecting anomalous event found on PingER data by calculating standard average between two points and comparing it with threshold value through step-by-step phases: (I) define research problem, (2) review the literature, (3) formulate hypothesis, (4) design research, (5) collect data, (6) analyze data and (7) interpret and report via Research methodology. At the end of this project, an anomalous event detection framework that able to display result of number of anomalous event detected on extracted PingER data monitored from University Malaysia Sarawak using pinger.unimas.my node located at latitude of 1.4653 and longitude of 110.4274. The framework is also able to visualize anomalous event detection result in table and graph through a simple web interface for reporting purpose by PingER system administrator(s}. This project is certainly important to allow human intervention onto PingER project in order to take necessary measurement by knowing and analyzing anomalous event taking place on time series graph of PingER project as each anomalous event reflect a defect during the transmission of packets from pingER. unimas.my to different sites around the world that can be a disaster to network performance

    A Study On Ketamine Abusers In Georgetown, Kuala Lumpur And Johor Bahru

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    Ketamine N-methyl-D-aspartat (NMDA) merupakan agen anestetik, digunakan secara luas sebagai ‘club-drug’. Sehingga kini, tiada data mengenai demografi sosio pengguna ketamine di Malaysia. Ketamine an N-methyl-D-aspartate (NMDA) is an anaesthetic agent, widely used as a club-drug. To date, there is no data on the socio-demographic characteristics of ketamine users in Malaysia

    Anomalous event detection for pinger data

    Get PDF
    The PingER (Ping End-to-end Reporting) Malaysia is an extension of the main PingER project with the objective to monitor and collect data of Internet performance specifically for sites in Malaysia and also to cover the region of South East Asia. PingER Malaysia initiative is collaboration between SLAC (Stanford Linear Accelerator Center), National University of Sciences and Technology, University Malaysia Sarawak, University Technology Malaysia and University of Malaya. Apart from the main goal of data collection and monitoring of Internet performance, another equally important goal of the PingER Malaysia initiative is to create as much as research opportunity as possible in order to solve existing problems, and/or improve current performance one of which is anomalous event detections for PingER data. This project investigates into detecting anomalous event found on PingER data by calculating standard average between two points and comparing it with threshold value through step-by-step phases: (1) Define research problem, (2) Review the literature, (3) Formulate hypothesis, (4) Design research, (5) Collect data, (6) Analyze data and (7) Interpret and report via Research methodology. At the end of the completion of this project, an anomalous event detection framework that able to display result of number of anomalous event detected on extracted PingER data monitored from University Malaysia Sarawak using pinger.unimas.my node located at latitude of 1.4653 and longitude of 110.4274. The framework is also able to visualize anomalous event detection result in table and graph through a simple web interface for reporting purpose by PingER system administrator(s). This project is certainly important to allow human intervention onto PingER project in order to take necessary measurement by knowing and analyzing anomalous event taking place on time series graph of PingER project as each anomalous event reflect a defect during the transmission of packets from pingER.unimas.my to different sites around the world that can be a disaster to network performance

    Media Sosial dan Dampak Positif Menurut Islam

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    Perkembangan teknologi pada masa kini menyumbang kemudahan dalam penggunaan saluran Internet dan menjurus dalam bidang komunikasi seharian. Antara contoh aplikasi yang melibatkan komunikasi secara talian adalah seperti Facebook, Blog, Twitter, dan Whatsapp. Secara umumnya, penglibatan penggunaan media sosial pada masa kini ingin melihat apakah implikasi yang berlaku terhadap proses komunikasi dan interaksi yang mampu mewujudkan kemudahan antara masyarakat. Tujuan kajian ini dijalankan untuk memantau peranan media sosial terhadap masyarakat yang sedang bergiat dalam menggunakan media sosial sebagai bahan berinteraksi dan komunikasi dalam seharian. Teori Penyelidikan ini juga penting untuk memberi panduan dalam menganalisis sejauh mana kepuasan masyarakat dalam penggunaan media sosial. Hasil kajian menunjukkan bahawa tujuan mereka menggunakan media sosial dalam bahagian interaksi untuk mengelakkan rasa kesunyian, mengeratkan hubungan antara sesama mereka, dan mencari hiburan dalam talian. Selain itu, terdapat implikasi yang baik dalam penggunaan media sosial terhadap masyarakat menurut Islam dan juga implikasi negatif yang mungkin membawa padah terhadap masyarakat kita pada masa kini

    A phantom assessment of achievable contouring concordance across multiple treatment planning systems

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    In this paper, the highest level of inter- and intra-observer conformity achievable with different treatment planning systems (TPSs), contouring tools, shapes, and sites have been established for metrics including the Dice similarity coefficient (DICE) and Hausdorff Distance. High conformity values, e.g. DICEBreast_Shape = 0.99 ± 0.01, were achieved. Decreasing image resolution decreased contouring conformity

    Comparison of magnetic resonance imaging and computed tomography for breast target volume delineation in prone and supine positions

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    Purpose To\ua0determine whether T2-weighted MRI improves seroma cavity (SC) and whole breast (WB) interobserver conformity for radiation therapy purposes, compared with the gold standard of CT, both in the prone and supine positions. Methods and Materials Eleven observers (2 radiologists and 9 radiation oncologists) delineated SC and WB clinical target volumes (CTVs) on T2-weighted MRI and CT supine and prone scans (4 scans per patient) for 33 patient datasets. Individual observer's volumes were compared using the Dice similarity coefficient, volume overlap index, center of mass shift, and Hausdorff distances. An average cavity visualization score was also determined. Results Imaging modality did not affect interobserver variation for WB CTVs. Prone WB CTVs were larger in volume and more conformal than supine CTVs (on both MRI and CT). Seroma cavity volumes were larger on CT than on MRI. Seroma cavity volumes proved to be comparable in interobserver conformity in both modalities (volume overlap index of 0.57\ua0(95% Confidence Interval (CI) 0.54-0.60) for CT supine and 0.52\ua0(95% CI 0.48-0.56) for MRI supine, 0.56\ua0(95% CI 0.53-0.59) for CT prone and 0.55\ua0(95% CI 0.51-0.59) for MRI prone); however, after registering modalities together the intermodality variation (Dice similarity coefficient of 0.41\ua0(95% CI 0.36-0.46) for supine and 0.38\ua0(0.34-0.42) for prone) was larger than the interobserver variability for SC, despite the location typically remaining constant. Conclusions Magnetic resonance imaging interobserver variation was comparable to CT for the WB CTV and SC delineation, in both prone and supine positions. Although the cavity visualization score and interobserver concordance was not significantly higher for MRI than for CT, the SCs were smaller on MRI, potentially owing to clearer SC definition, especially on T2-weighted MR images

    The effectiveness of effective microorganisms in treating wastewater

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    This paper present the studies on the effectiveness of using effective microorganisms (EM) in treating wastewater by using molasses, honey and sugar as a solution on activating it. It also determined the removal efficiency and also compared the three types of EM solutions in removing pollutants from the wastewater sample. EM is a group of 250 bacteria mainly consist of three types of microbes that are yeast, lactic acid, and photosynthetic bacteria. It is widely used for the purpose of wastewater treatment and purification that contribute to the significant of reduction on the water quality parameters such as chemical oxygen demand (COD), pH value, biological oxygen demand (BOD), total suspended solids, turbidity, ammoniacal nitrogen, oil & grease, and heavy metals. The EM was produced accurately and was activated by using sugar, honey and molasses. The sample of the wastewater was collected from morning market of Taman Tas, Kuantan. The data showed by using activated EM with molasses, the percentage of BOD removal was 43.64%, COD removal was 84.01%, TSS removal was 55.17%, zinc removal was 72.5%, and nickel removal was 90.28%. Furthermore, the data also showed by using activated EM with honey, the percentage of BOD removal was 38.37%, COD removal was 81.95%, TSS removal was 62.07%, zinc removal was 67.5%, and nickel removal was 84.72%. On the other hand, it also showed by using activated EM with sugar, the percentage of BOD removal was 30.93%, COD removal was 78.73%, TSS removal was 72.41%, zinc removal was 62.5%, and nickel removal was 81.9%. Moreover, all of the activated effective microorganisms removed 100% the oil & grease, and ammoniacal nitrogen from the wastewater. The results showed that the removal efficiency of the three types of activated effective microorganisms were successful. The study indicated that the treatment process using EM was effective

    The relationship between survivor syndromes and job satisfaction and employees’ performance during mergers in RHB Asset Management

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    Merger is a complex and challenging process for an organization to undertake. A number of studies have described the psychological, attitudinal, and behavioral effects of mergers on survivors which revealed that it was important to take care of the remaining employee’s emotions and feelings and most importantly to ensure that they satisfy with what the firms done for them .This study investigates the relationship between survivor syndromes and job satisfaction and employees’ performance during mergers. The aim for present study is firstly, to examine the level of survivors syndromes which consist of six important emotions; fear job loss and insecurity, reduced risk taking and motivation, thirst for information loss of trust and confidence on employer, unfairness and depression, anxiety and fatigue; secondly, to examine the level of job satisfaction and employee performance during mergers; thirdly, to identify the relationship between survivor syndromes and job satisfaction and employee performance in the context of merger. Using quantitative design research, data was collected through survey questionnaires from a sample of 132 employees/bankers from RHB Asset Management Johor Bahru branch. The analysis we carried out using descriptive and inferential statistic. The findings of the study indicate that, three of the variables; survivor syndromes, job satisfaction and employees’ performance were moderate level during mergers in RHBAM. However, the correlation results between these three variables were no significantly correlated each other’s. Due to the post-merger period over time, the result suggested no influence between survivors’ emotions and job satisfaction and employee performance in RHBAM, which mean survivors’ job satisfaction and performance no longer impact or recover from the merger event. This has contributed new finding in future towards the body of literature especially in terms of determining the level of survivor syndromes towards job satisfaction and employees performance between pre-merger and post-merger period
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