[jira] Commented: (LUCENE-965) Implement a state-of-the-art retrieval function in Lucene

2007-07-28 Thread Charlie Zhao (JIRA)
[ https://issues.apache.org/jira/browse/LUCENE-965?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12516185 ] Charlie Zhao commented on LUCENE-965: - Regarding the approach to compute avgDL, this patch goes like this

[jira] Commented: (LUCENE-965) Implement a state-of-the-art retrieval function in Lucene

2007-07-26 Thread Charlie Zhao (JIRA)
[ https://issues.apache.org/jira/browse/LUCENE-965?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12515833 ] Charlie Zhao commented on LUCENE-965: - Document Length and Average Document Length are sort of speed

[jira] Commented: (LUCENE-965) Implement a state-of-the-art retrieval function in Lucene

2007-07-26 Thread Charlie Zhao (JIRA)
[ https://issues.apache.org/jira/browse/LUCENE-965?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12515783 ] Charlie Zhao commented on LUCENE-965: - Hello Hui: Thank you for contributing your axiomatic retrieval function

Lucene 2.0 similarity scoring formula

2006-05-01 Thread Charlie
Hello, Will 2.0's similarity scoring formula remain the same as the following? \sum_{t in q} tf(t in d) * idf(t) * boost(t.field in d) * lengthNorm(t.field in d) or what exactly it will be? -- Best regards, Charlie ---

Re[2]: (byte)((i & 0x7f) | 0x80) == (byte)(i | 0x80)

2006-04-26 Thread Charlie
ok, thanks for your reply. But I thought Method: public void writeVInt(int i) is not about UTF-8, it is about how to write an int in variable length. Is it included as a part of future unicode character writing? -- Best regards, Charlie --- >> I thought >> >> (byte)

(byte)((i & 0x7f) | 0x80) == (byte)(i | 0x80)

2006-04-26 Thread Charlie
that line to writeByte((byte)(i | 0x80)); and may speed up a little bit. Correct me if (i & 0x7f) is necessary. Thank you. -- Best regards, Charlie - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands

when and how to use GCJIndexInput, GCJDirectory

2006-04-11 Thread Charlie
does not use ant.) I am quite confused fundamentally by the purpose of those GCJ files when try to understand the lucene implementation. Your explanation is highly appreciated. Charlie - To unsubscribe, e-mail: [EMAIL PROTECTED

Jbuilder to build lucene, package gnu.gcj does not exist

2006-04-11 Thread Charlie
gh JBuilder. e.g. How to set up Lucene's development environment? ? Why use GCJ? Appreciated. Charlie - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]