---
Ron Hitchens {[email protected]} +44 7879 358212
On Aug 20, 2013, at 7:26 PM, Jason Hunter <[email protected]> wrote:
> MarkMail did #1 but has the downside as you list. You can eliminate the
> downside by upping quality over time and adjusting down the quality weight on
> the search. (That assumes you don't have any other factors in the quality
> calculation except recency.) Maybe once in a while reset things globally so
> the numbers don't get ridiculous.
>
> MarkLogic 7 adds scoring to range index values, which is what you really
> want.
I'll take it. But I've got to get to 6 before I can get to 7.
Why was MarkLogic 6 afraid of MarkLogic 7? Because 7 8 9.
Sorry.
> Sent from my iPhone
>
> On Aug 20, 2013, at 11:10 AM, Ron Hitchens <[email protected]> wrote:
>
>>
>> What are the techniques out there for giving newer documents
>> higher relevance? My target is MarkLogic 5.x, but 6.x may be in
>> play before long.
>>
>> There are two schemes that I am aware of, neither of which feels
>> very elegant:
>>
>> 1) Give documents a high quality value when ingested. Periodically
>> crawl the content and for any document with positive quality, reduce
>> its quality according to some algorithm until the quality reaches zero.
>>
>> This gives the best control over "freshness", but has the disadvantage
>> of causing potentially large numbers of updates on each pass with the
>> attendant merges and disk I/O & CPU load.
>>
>> 2) Replicate the "real" query n times, each and-ed with a time-based
>> query against the insertion date. All of these are or-ed together
>> with descending weights for older dates.
>>
>> This does't require changing documents to tweak their freshness. But
>> it also means you have a stair-step function of n-steps, which may not
>> be very precise - and which wouldn't scale very well for large values
>> of n. And unfortunately, since the queries would be time-based, you
>> can't pre-register them ahead of time.
>>
>> Any other clever techniques that you've used?
>>
>> ---
>> Ron Hitchens {[email protected]} +44 7879 358212
>>
>>
>>
>>
>> _______________________________________________
>> General mailing list
>> [email protected]
>> http://developer.marklogic.com/mailman/listinfo/general
> _______________________________________________
> General mailing list
> [email protected]
> http://developer.marklogic.com/mailman/listinfo/general
_______________________________________________
General mailing list
[email protected]
http://developer.marklogic.com/mailman/listinfo/general
