18Fall CS PHD文书求改求批判~
544215
这是我写的PS，然后找了一个工作室帮改了一下，求大家修改意见~
[align="left"]My intense interests in computer science are driven by the passion I have to understand how technology gadgets work. From an early age I have been studying programming and creating software programs. My time is consumed by computer learning and the choice of enrolling in computer science in undergraduate school came naturally to me. [/align][align="left"]
[/align][align="left"]I will receive a bachelor degree in computer science and technology from the University of Electronic Science and Technology next summer. The school ranks among the best in computer science in China and my academic performance has been outstanding. I have not only received several scholarships and competitive awards for my efforts, but also have significant research and internship experience to help make the transition to Ph.D. studies easier. Two of my research papers are in the process of being published.[/align][align="left"]
[/align][align="left"]Last year I joined the Zebra laboratory and contributed to the FlexBM project. My research involved a dual-scheme block management solution for distributed systems that would combine the benefits of EC coding and replication, serving as a supplement to existing Hadoop-like solutions that suffer from either excessive storage overhead or degraded reads. My specific tasks on the project included performing experiments on the modified Hadoop system to evaluate performance of the FlexBM by comparing with previous studies such as HDFS-RAID. The experimental results indicated evident effects of this adaptive block management policy on accelerating task execution, and at the same time the storage overhead was reasonable.[/align][align="left"]
[/align][align="left"]More recently, I carried out a major research project to speculate the I/O behavior of distributed applications in a lightweight way, aiming to alleviate deficiencies of existing I/O profiling frameworks such as shortage of portability and being costly. Based on the empirical observation of the connection between metadata access and data I/O, SwiftIO was found as a meaningful solution from the correlation through extensive experiments. After I initially experienced some setbacks with my approach, with the assistance of my supervisor, ways around the unresolved issues were realized. I used a series of MapReduce applications, did extensive testing, and made refinements in my processes to get to where the experiments were able to prove strong linear correlation between data I/O volume and metadata access metrics on distributed storage systems. Concurrently, a prototype implementation of SwiftIO algorithm verified the feasibility of predicting I/O behavior accurately through metadata access in a lightweight manner with extremely low overhead. My research has been submitted to a high-end academic conference, and could potentially have positive outcomes for I/O profiling technologies.[/align][align="left"]
[/align][align="left"]Apart from my research experiences, I also have involved myself in quite a few internships. Two years ago, I worked for Brithon as a full-stack software developer. My specific tasks were on the online appointment scheduling service (BirchPress) for the development of a CRM module using ReactJS and PHP. Currently I am working part-time on a project called Overseas New Life, and my primary obligation is being in charge of a WeChat bot service that provides auxiliary functions for online merchants to serve their customers. Two particular challenges in this position that I have overcome involve the integration of the bot framework into the server, and the memory leak issue. Since the framework we used was designed for clients, changes were required before applying it to the backend application that holds multiple users simultaneously. I successfully developed the server-side bot platform by applying multithreading and co-routine, enabling the server to handle numerous bots of different users with customized configurations. As well, by limiting the message queue, and reusing instances via Redis-based session, the memory leak problem was mitigated, allowing the server to operate smoothly. [/align][align="left"]
[/align][align="left"]My experiences in research and internship work not only have expanded and enhanced my skills and ability to learn, but they have also let me recognize some of the trends occurring in technology. I realize that we have entered an era of mobile internet and big data, where people become increasingly dependent on connected electronics, while data is being collected for making further changes for our convenience. Moreover, it is my opinion that advances in technology such as artificial intelligence and augmented reality require reliable underlying systems to support them. As applications continue to expand, demands on high performance and robust distributed systems will increase. At the same time, there will be ever more challenges for making optimizations on distributed systems regarding performance and efficiency because of limited budgets of startups, finite resources of energy and the physical limits on transistors.[/align][align="left"]
[/align][align="left"]The Ph.D. program in computer science at University of XXX will not only prepare me for a rapidly changing world but also give a meaningful way for me to make contributions to society. It is my hope to work in the XXXX lab to be involved with the most advanced research on distributed systems. XXXX has an impressive set of accomplishments, and I am intrigued by the research being done on reliability and performance improvements concerning distributed storage. My specific research interests closely align with those of Professor ####, such as the topic of SSD optimizations and crash consistency. My long term career aspirations are to use the knowledge I gain to work for a large internet company or cloud service provider as a researcher and provide solutions for the digital world of our future.[/align][align="left"]
[/align][align="left"]I am confident of excelling and making positive contributions to your department’s research initiatives. Thank you for your consideration of my application.[/align][align="left"]
[/align][align="left"]
[/align][align="left"]Wei Su[/align][align="left"]Prospective PhD Student[/align]
[align="left"]My intense interests in computer science are driven by the passion I have to understand how technology gadgets work. From an early age I have been studying programming and creating software programs. My time is consumed by computer learning and the choice of enrolling in computer science in undergraduate school came naturally to me. [/align][align="left"]
[/align][align="left"]I will receive a bachelor degree in computer science and technology from the University of Electronic Science and Technology next summer. The school ranks among the best in computer science in China and my academic performance has been outstanding. I have not only received several scholarships and competitive awards for my efforts, but also have significant research and internship experience to help make the transition to Ph.D. studies easier. Two of my research papers are in the process of being published.[/align][align="left"]
[/align][align="left"]Last year I joined the Zebra laboratory and contributed to the FlexBM project. My research involved a dual-scheme block management solution for distributed systems that would combine the benefits of EC coding and replication, serving as a supplement to existing Hadoop-like solutions that suffer from either excessive storage overhead or degraded reads. My specific tasks on the project included performing experiments on the modified Hadoop system to evaluate performance of the FlexBM by comparing with previous studies such as HDFS-RAID. The experimental results indicated evident effects of this adaptive block management policy on accelerating task execution, and at the same time the storage overhead was reasonable.[/align][align="left"]
[/align][align="left"]More recently, I carried out a major research project to speculate the I/O behavior of distributed applications in a lightweight way, aiming to alleviate deficiencies of existing I/O profiling frameworks such as shortage of portability and being costly. Based on the empirical observation of the connection between metadata access and data I/O, SwiftIO was found as a meaningful solution from the correlation through extensive experiments. After I initially experienced some setbacks with my approach, with the assistance of my supervisor, ways around the unresolved issues were realized. I used a series of MapReduce applications, did extensive testing, and made refinements in my processes to get to where the experiments were able to prove strong linear correlation between data I/O volume and metadata access metrics on distributed storage systems. Concurrently, a prototype implementation of SwiftIO algorithm verified the feasibility of predicting I/O behavior accurately through metadata access in a lightweight manner with extremely low overhead. My research has been submitted to a high-end academic conference, and could potentially have positive outcomes for I/O profiling technologies.[/align][align="left"]
[/align][align="left"]Apart from my research experiences, I also have involved myself in quite a few internships. Two years ago, I worked for Brithon as a full-stack software developer. My specific tasks were on the online appointment scheduling service (BirchPress) for the development of a CRM module using ReactJS and PHP. Currently I am working part-time on a project called Overseas New Life, and my primary obligation is being in charge of a WeChat bot service that provides auxiliary functions for online merchants to serve their customers. Two particular challenges in this position that I have overcome involve the integration of the bot framework into the server, and the memory leak issue. Since the framework we used was designed for clients, changes were required before applying it to the backend application that holds multiple users simultaneously. I successfully developed the server-side bot platform by applying multithreading and co-routine, enabling the server to handle numerous bots of different users with customized configurations. As well, by limiting the message queue, and reusing instances via Redis-based session, the memory leak problem was mitigated, allowing the server to operate smoothly. [/align][align="left"]
[/align][align="left"]My experiences in research and internship work not only have expanded and enhanced my skills and ability to learn, but they have also let me recognize some of the trends occurring in technology. I realize that we have entered an era of mobile internet and big data, where people become increasingly dependent on connected electronics, while data is being collected for making further changes for our convenience. Moreover, it is my opinion that advances in technology such as artificial intelligence and augmented reality require reliable underlying systems to support them. As applications continue to expand, demands on high performance and robust distributed systems will increase. At the same time, there will be ever more challenges for making optimizations on distributed systems regarding performance and efficiency because of limited budgets of startups, finite resources of energy and the physical limits on transistors.[/align][align="left"]
[/align][align="left"]The Ph.D. program in computer science at University of XXX will not only prepare me for a rapidly changing world but also give a meaningful way for me to make contributions to society. It is my hope to work in the XXXX lab to be involved with the most advanced research on distributed systems. XXXX has an impressive set of accomplishments, and I am intrigued by the research being done on reliability and performance improvements concerning distributed storage. My specific research interests closely align with those of Professor ####, such as the topic of SSD optimizations and crash consistency. My long term career aspirations are to use the knowledge I gain to work for a large internet company or cloud service provider as a researcher and provide solutions for the digital world of our future.[/align][align="left"]
[/align][align="left"]I am confident of excelling and making positive contributions to your department’s research initiatives. Thank you for your consideration of my application.[/align][align="left"]
[/align][align="left"]
[/align][align="left"]Wei Su[/align][align="left"]Prospective PhD Student[/align]
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