Lesson plan
Binary Ordered Compression for Unicode
Binary Ordered Compression for Unicode (BOCU) is a MIME-compatible Unicode compression scheme. BOCU-1 combines the wide applicability of UTF-8 with the compactness of Standard Compression Scheme for Unicode (SCSU). This Unicode encoding is designed to be useful for compressing short strings, and maintains code point order. BOCU-1 is specified in a Unicode Technical Note. For comparison SCSU, was adopted as standard Unicode compression scheme with a byte-to-codepoint ratio similar to language-specific code pages. SCSU has not been widely adopted, as it is not suitable for MIME "text" media types. For example, SCSU cannot be used directly in emails and similar protocols. SCSU requires a complex encoder design for good performance. Usually, the zip, bzip2, and other industry-standard algorithms compact larger amounts of Unicode text more efficiently. Both SCSU and BOCU-1 are IANA registered charsets.
Article summary
Binary Ordered Compression for Unicode (BOCU) is a MIME-compatible Unicode compression scheme. BOCU-1 combines the wide applicability of UTF-8 with the compactness of Standard Compression Scheme for Unicode (SCSU). This Unicode encoding is designed to be useful for compressing short strings, and maintains code point order. BOCU-1 is specified in a Unicode Technical Note. For comparison SCSU, was adopted as standard Unicode compression scheme with a byte-to-codepoint ratio similar to language-specific code pages. SCSU has not been widely adopted, as it is not suitable for MIME "text" media types. For example, SCSU cannot be used directly in emails and similar protocols. SCSU requires a complex encoder design for good performance. Usually, the zip, bzip2, and other industry-standard algorithms compact larger amounts of Unicode text more efficiently. Both SCSU and BOCU-1 are IANA registered charsets.
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Discussion questions
- Summarise the article in your own words. Which single claim would you verify first, and why?
- Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
- If two sources disagreed about one of these facts, what would you need in order to trust one over the other?
Bibliography
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Key claims and bibliography are generated from the same tracked claims and sources as the article page.