Cover Letter

  • Generally speaking, I think I almost achieved my goal for ESOL 5010. Before I learning this course, all I know about English writing is how to squeeze out some sentences on a certain structure (maybe it is what GRE writing is), the process is aimless and boring, and the outcome is full of mistakes.

    However, after a semester’s writing class, I begin to catch a clue of how to write in English, especially on academic articles. Repeatedly revising do help me realize which parts should I put more attention than the others. Some mistakes are subconscious and they are hard to correct without certain training, but this course offered an opportunity to focus on the weakness, so I think my writing skill really get improved in some aspects.

    Grammar knowledge was acknowledged through the lecture, games, and the quiz. Even though it could not be avoided, I believe it’s less than before. In addition, the grammar log also helps a lot, since it is impressive to select the mistakes and review it sometime.

     

    What is more important is that I get familiar with different kinds of academic writing format. During each iteration, we focus on one type of academic writing; after discuss and peer review, we not only know the weakness of our own writing, but also the advantage and disadvantage points from others.

    In my view, the writing strengths I got is the logical analysis. I prefer to describe anything in a logical way, and to discover inner causes and results. But I think the areas I still need to focus on in future writing is the grammar and the format.

    To get a further improvement in these areas, I decide to read more academic articles and go through the “Writing Reference”, besides, this book is really helpful when you try to focus on one certain grammar mistake.

    From the proposal in my field, I believe that it could prove I get the basic ability to write academic English in Computer Science. Even though there are a lot more to improve, I could express my idea in an organized and formal way.

    Finally, I feel lucky to have Mrs.Dayna’s class, which is interesting and very helpful.  Her kind and patience are the main reasons I could get improved in English writing.

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Critique of “3D Computer Graphics”

Critique                                      Yilin Gu

 

The book “3D Computer Graphics”, which was first published in 1989, was written by Alan Watt, a famous author in the field of computer graphics and image. This book mainly deals with the processes involved in converting a mathematical or geometric description of an object into a visualization that simulates the appearance of a real object. In this book, the author offered a lot of brilliant ideals on the Algorithms in computer graphics and deeply analyzed each step during the process when creating a 3D picture on a 2D screen, carrying out the most classical methods coping with complicated image projection and rending, which I appreciate a lot. However, I think what needs to be improved is that this book should contain more details and practical experiments, so that readers could better understand the methods and thoughts discussed inside.

 

One significant aspect in this book is that for certain problems, the author provided different accesses which could complement to each other. For example, when dealing with the problem of hidden surface removing, which aimed at hiding the back object by the front object, the author introduced two methods. One is Z-buffer, and the other is BSP trees. The advantage of Z-buffer is its simplicity of implementation. A Z-buffer theory only finds the minimum z value of each interior polygon point which shares the same x and y coordinator.  But this method has kind of a big memory requirement. While the BSP tree requires less memory and performs well by storing the location of each object. So in the real project, readers could choose the more suitable solution to cope with the hidden face problem.

The other valuable aspect of this book is its vivified and understandable inset pictures and figures. Since it is a book discussing 3D Graphics, it contains a lot of images to explain the method and the effect after the method being implemented. Drawing these pictures allows the readers quickly follow the track of some complicated method, especially for the contents that could hardly be described by words. Take the chapter introducing the mapping techniques for example, the author gave the readers many pictures to illustrate how the 2D object could be mapped into 3D space, which make the whole process accessible and easy understood.

The part which needs to be improved in this book is that the author should add more practical use of these methods talked in this book. Like the ray tracing strategies, the author only presented the mathematic solution which is still hard for readers to implement this theory.

The same situation occurs also in the chapter Geometric shadows, to put the algorithms into real code is a tough work for most of the readers.

 

All in all, even though some parts or method of this book are hard for readers to implement directly, it is still a good tool book for the people who want to get access into the 3D computer graphics field.

Reference:

[1] Alan. Watt. 3D Computer Graphics (third edition). ADDISON-WESLEY, 2000,pp.189-202

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Summary of “A Multi-layer Approach to Music Description”

Summary of “A Multi-layer Approach to Music Description”

 

This paper titled “A Multi-layer Approach to Music Description”, by Lucas A. Ludovico, was published in February 2009. This paper focuses on introducing a new format to comprehensively represent music. The author compared the XML-based format with the traditional file formats, and drew the conclusion that the traditional format to digital music was limited by combining different aspects of music together, such as scores and audio tracks. while the new approach built a multi-layer system which could gain perfect performance on representing music. What are the advantages of the XML-based format in terms of music representation? The author lists various explanations, including good capability of describing entities without overloading information, well-organized structure and independency allowed, and extensibility which is foundation for further development of music language.

 

The main discussion in this publication is around the key features of MusicXML. The author deeply analyzed this new format and classified the characters into two parts. The first one is the multi-layer structure. This new format employs six different layers to represent information: general, logical, structural, notational, performance, and audio. The author used figures and the simplified code to clarify these terminologies. The second one is the spine of XML-format, which constitutes a list of music events that are sorted and labeled in order to allow reference from other layers. This important aspect creates synchronization among contents disposed in many layers, which could perform the heterogeneous music information well.

 

The author concludes that comparable to other traditional file formats, the XML-based format has been designed to achieve a comprehensive description of music, content interoperability, and deliverability. On the one hand, this way of encoding music pays special attention to on-line accessibility. On the other hand, the format is meant to provide an integrated and evolved fruition of music, thus representing a new approach to music delivery and enjoyment.

 

Reference

Luca.A. Ludovico. “a Multi-layer Approach to Music Description”, via Comelico 39/41-I-20135 Milano, Italy,2009

 

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Paper Analysis of “a Multi-layer Approach to Music Description”

Summary:

This paper, a Multi-layer Approach to Music Description, focuses on introducing a new XML-based format, IEEE 1599, which describes heterogeneous music content in a comprehensive way. It proposed that this new approach is able to combine music symbols, printed scores, audio tracks, computer-driven performances, catalogue metadata, text and graphic contents in a single file, and make them mutually synchronized within the same framework. Compared to the traditional format to digitizing music, such as AAC, MP3, and PCM, which are limited in combining different aspects together such as score, audio tracks, and computer performances, the IEEE 1559 XML-format could be a comprehensive representation of music. The author believes that the future development of this format could have a positive and wide effect on music entertainment, music composition and progress of music as a whole. This paper is targeted at the experts who are doing research in computer music or musical pedagogy.

 

Organization

 

This paper has a direct thesis in the abstract located in the beginning of the whole paper: ”The article aims at describing this approach for the description of heterogeneous music-related contents, and providing guidelines to understand key concepts of IEEE 1599 standard”[1]. In addition, the whole paper is divided into three sections “Introduction”, ”Representing Heterogeneous Music-related Information” ,and “IEEE1599 A New Standard for Music”, and they are organized in a logical way.

The author begins with a brief introduction to music information, which is specialized by its intrinsically heterogeneous, as it involves numbers of different medias and different descriptions. This characteristic makes a comprehensive representation of music information complicated.

This problem brings out the need to explore an effective way to encode and perform music, which is discussed in the following section.

Section 2 stress on the exist accesses to represent either symbolic or multimedia information. The author takes numbers of file formats for example to illustrate this point. Even though such formats could represent a certain kind of music information, they are characterized by an intrinsic limitation. Actually, while they can describe music data or metadata for scores, audio tracks, and computer performances of music pieces, they are not able to encode all these aspects together. There comes the need to bring out a general music description capable of dealing with heterogeneous music-related information, and it must include all symbolic documents. In the final of this section, the author also discussed the main goal of IEEE 1599, which could cope with the previous problems respectively.

After deeply analyzing the nature of music and the desire to build a new approach to better describe music information, Section3 gives a comprehensive explanation of IEEE 1599, which is organized by two parts, the first one accounts the Definition and Brief history of the new standard, the other one puts emphasis on the key features. In the first part, it introduced XML, which is a formal meta-language suitable for declarative representations. Several advantages of XML are listed, and as these aspects have an important counterpart in music language, this makes the XML to an effective way to represent music information. In the second part, this paper focuses on each advantage mentioned above, and utilizes figures and comprehensive illustrations to tell how the XML format encoding and performing music information.

The content of neighbored part is coherent and logically related, which render the whole article well-organized without apparent divisions between each part.

 

Research

 

As the author analyzed how the XML-format is better suitable for music information description, logical explanations and reference figures are given to support.  As for this essay, the main purpose is to introduce the new format and how it meets the current needs for music. There is no certain research on the theory; instead, the author analyzes the problem and relative solution step by step, and draws a conclusion in the end that the XML-format is the most suitable way to represent music information. This paper uses IEEE style, which can be seen from the way they do quotations.

 

Style

As for the style, the authors use both present and past tenses. Present tenses are used in analysis of the problem and the solution, while past tenses are employed when it cites the XML language history. They also choose 3th person plural for stating, since it is a report to introduce a new format. By third person stating, it is easy for the author to tell the readers the essence of the problems and the advantages of the XML-format. An example in section3:”In conclusion, an XML-based language allows inherent readability, extensibility and durability”[1].

The author uses contraction between the formal format and the XML-format to better illustrate that the new format had an important counterpart in music information representation.

As for the flow of the article, various transitions are included in the paper between paragraphs, sentence and words. Prepositional phrases, such as “first”, “finally”, and “in conclusion” was used in paragraph-level transitions. “In order to” ,and “as stated before” show the coherence among words and statements. The paper has several topic sentences, which locating at the beginning of each paragraph.

 

Conclusion:

I think it is a well-written paper, as it conveys the topic comprehensively and exactly to the readers step by step. It has a clear clue of analyzing problems: it points out the main challenge for representing music information, and raises solutions respectively. At the end of the article, it turned out that the XML-format is the most suitable solution for the problem.

I like it a lot, as I can learn the expression of complicated problems, how to divide problems into separate parts and to get well-organized in the whole paper.

 

Reference

[1]Luca.A. Ludovico.IEEE1599:a Multi-layer Approach to Music Description.via Comelico 39/41-I-20135 Milano, Italy

 

 

 

 

 

 

Summary:

 

This paper, a Multi-layer Approach to Music Description, focuses on introducing a new XML-based format, IEEE 1599, which describes heterogeneous music content in a comprehensive way. It proposed that this new approach is able to combine music symbols, printed scores, audio tracks, computer-driven performances, catalogue metadata, text and graphic contents in a single file, and make them mutually synchronized within the same framework. Compared to the traditional format to digitizing music, such as AAC, MP3, and PCM, which are limited in combining different aspects together such as score, audio tracks, and computer performances, the IEEE 1559 XML-format could be a comprehensive representation of music. The author believes that the future development of this format could have a positive and wide effect on music entertainment, music composition and progress of music as a whole. This paper is targeted at the experts who are doing research in computer music or musical pedagogy.

 

Organization

 

This paper has a direct thesis in the abstract located in the beginning of the whole paper: ”The article aims at describing this approach for the description of heterogeneous music-related contents, and providing guidelines to understand key concepts of IEEE 1599 standard”[1]. In addition, the whole paper is divided into three sections “Introduction”, ”Representing Heterogeneous Music-related Information” ,and “IEEE1599 A New Standard for Music”, and they are organized in a logical way.

The author begins with a brief introduction to music information, which is specialized by its intrinsically heterogeneous, as it involves numbers of different medias and different descriptions. This characteristic makes a comprehensive representation of music information complicated.

This problem brings out the need to explore an effective way to encode and perform music, which is discussed in the following section.

Section 2 stress on the exist accesses to represent either symbolic or multimedia information. The author takes numbers of file formats for example to illustrate this point. Even though such formats could represent a certain kind of music information, they are characterized by an intrinsic limitation. Actually, while they can describe music data or metadata for scores, audio tracks, and computer performances of music pieces, they are not able to encode all these aspects together. There comes the need to bring out a general music description capable of dealing with heterogeneous music-related information, and it must include all symbolic documents. In the final of this section, the author also discussed the main goal of IEEE 1599, which could cope with the previous problems respectively.

After deeply analyzing the nature of music and the desire to build a new approach to better describe music information, Section3 gives a comprehensive explanation of IEEE 1599, which is organized by two parts, the first one accounts the Definition and Brief history of the new standard, the other one puts emphasis on the key features. In the first part, it introduced XML, which is a formal meta-language suitable for declarative representations. Several advantages of XML are listed, and as these aspects have an important counterpart in music language, this makes the XML to an effective way to represent music information. In the second part, this paper focuses on each advantage mentioned above, and utilizes figures and comprehensive illustrations to tell how the XML format encoding and performing music information.

The content of neighbored part is coherent and logically related, which render the whole article well-organized without apparent divisions between each part.

 

Research

 

As the author analyzed how the XML-format is better suitable for music information description, logical explanations and reference figures are given to support.  As for this essay, the main purpose is to introduce the new format and how it meets the current needs for music. There is no certain research on the theory; instead, the author analyzes the problem and relative solution step by step, and draws a conclusion in the end that the XML-format is the most suitable way to represent music information. This paper uses IEEE style, which can be seen from the way they do quotations.

 

Style

As for the style, the authors use both present and past tenses. Present tenses are used in analysis of the problem and the solution, while past tenses are employed when it cites the XML language history. They also choose 3th person plural for stating, since it is a report to introduce a new format. By third person stating, it is easy for the author to tell the readers the essence of the problems and the advantages of the XML-format. An example in section3:”In conclusion, an XML-based language allows inherent readability, extensibility and durability”[1].

The author uses contraction between the formal format and the XML-format to better illustrate that the new format had an important counterpart in music information representation.

As for the flow of the article, various transitions are included in the paper between paragraphs, sentence and words. Prepositional phrases, such as “first”, “finally”, and “in conclusion” was used in paragraph-level transitions. “In order to” ,and “as stated before” show the coherence among words and statements. The paper has several topic sentences, which locating at the beginning of each paragraph.

 

Conclusion:

I think it is a well-written paper, as it conveys the topic comprehensively and exactly to the readers step by step. It has a clear clue of analyzing problems: it points out the main challenge for representing music information, and raises solutions respectively. At the end of the article, it turned out that the XML-format is the most suitable solution for the problem.

I like it a lot, as I can learn the expression of complicated problems, how to divide problems into separate parts and to get well-organized in the whole paper.

 

Reference

[1]Luca.A. Ludovico.IEEE1599:a Multi-layer Approach to Music Description.via Comelico 39/41-I-20135 Milano, Italy

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Hello world!

Welcome to WordPress.com. After you read this, you should delete and write your own post, with a new title above. Or hit Add New on the left (of the admin dashboard) to start a fresh post.

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