Saturday, September 25, 2010

Unit 4, Multimedia Representation & Storage: Reading Notes

YouTube and libraries: It could be a beautiful relationship, by Paula L. Webb

This article offers great suggests for ways that libraries can use YouTube. As a free service, YouTube could be useful in expanding services. It would help patrons learn new things about library services without necessarily needing the one-on-one assistance of staff. This would free library employees to work on projects helpful to a bigger number of patrons.

Also, YouTube could be a great way for libraries to show off their less traditional assets to people who think libraries are just about books. The examples cited in the article would be great starting points for all culture and knowledge-based institutions looking to extend their reach.

This article doesn’t really take into account how difficult it is to make quality videos, though, or how expensive film equipment can be. That seems like a huge oversight.

Data Compression (Wikipedia)

Before reading this article, I thought all kinds of compression resulted in some loss of data. This article was helpful for pointing out the difference between lossy and lossless compression, especially that lossless compression does not actually destroy any information to make a smaller file. The difference between the two kinds of compression is good to know.

Data Compression Basics

A long but useful article about compression. The practical information will be helpful in the future, especially as it regards the compression of text documents. In archives, it’s important to keep data as pure as possible while also saving on space; it was good to read about how compression can help to meet those needs.

The point that lossy compression preserves information but not data is an interesting distinction.


Imaging Pittsburgh

This was my favorite of this week’s articles. I enjoyed seeing the practical application of online databases, and it was easy to see how compression makes it possible to share so many images in one place. I actually visited the project’s website and looked through the historic photos of my neighborhood, which was a lot of fun. It was useful to experience the user end of the database with the case study knowledge in mind.

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