# Boosting results by date **URL:** \ **Category:** Elasticsearch\ **Created:** [September 5, 2011, 3:51pm UTC](https://discuss.elastic.co/t/boosting-results-by-date/5312 "2011-09-05T15:51:36Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![Tania](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/tania/32/3123_2.png) [@Tania](https://discuss.elastic.co/u/Tania)\ **Post date:** [September 5, 2011, 3:51pm UTC](https://discuss.elastic.co/t/boosting-results-by-date/5312/1 "2011-09-05T15:51:36Z")
Hi all, I posted this topic one month ago but there were no related replies. I am interested in boosting my results by more recent date, this is, modifying they score so as to _newer documents have a slightly bigger score than older ones_ (notice that I _don't mean sorting by date_). I do know that I can't modify the score in runtime, so it becomes quite difficult. I have discovered new features in ES so it may be easier to achieve it right now. Maybe I could use a _boosting query_ to enhance the more recent ones and to demote the older ones. Is it a good idea? Any help is appreciated! Thanks! Tania ---
**Author:** ![philwhln](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/philwhln/32/3121_2.png) [@philwhln](https://discuss.elastic.co/u/philwhln)\ **Post date:** [September 5, 2011, 4:50pm UTC](https://discuss.elastic.co/t/boosting-results-by-date/5312/2 "2011-09-05T16:50:40Z")
Hi Tania, Doing this at a fine grain level will be harder than doing this roughly. For instance, you could do this by month by storing a month field (eg. "201101".."201112", "201001".."201012", "200901".."200912") and boosting this field at query time on the terms closest to today. For instance, today I'd boost "201109" the most, "201108" a little less and "201107" a little less still. You can do this at a more granular level, but it means passing more query terms to the search. Cheers, Phil On Mon, Sep 5, 2011 at 8:51 AM, Tania [yosoythania@hotmail.com](mailto:yosoythania@hotmail.com) wrote: > Hi all, > I posted this topic one month ago but there were no related replies. I am > interested in boosting my results by more recent date, this > is, modifying they score so as to _newer documents have a slightly bigger > score than older ones_ (notice that I _don't mean sorting by > date_). > I do know that I can't modify the score in runtime, so it becomes quite > difficult. > I have discovered new features in ES so it may be easier to achieve it > right now. Maybe I could use a _boosting query_ to enhance the more recent > ones and to demote the older ones. Is it a good idea? > Any help is appreciated! Thanks! > Tania ---
**Author:** ![Joel\_Abrahamsson](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/joel_abrahamsson/32/1924_2.png) [@Joel\_Abrahamsson](https://discuss.elastic.co/u/Joel_Abrahamsson)\ **Post date:** [September 5, 2011, 5:01pm UTC](https://discuss.elastic.co/t/boosting-results-by-date/5312/3 "2011-09-05T17:01:04Z")
Hi, I'm not sure about the performance, but maybe a custom\_score query could be used with a script that (roughly) divides the \_score with the result of the current day minus the days in the date field? /Joel On 5 Sep, 18:50, Phil Whelan [phil...@gmail.com](mailto:phil...@gmail.com) wrote: > Hi Tania, > > Doing this at a fine grain level will be harder than doing this roughly. > > For instance, you could do this by month by storing a month field (eg. > "201101".."201112", "201001".."201012", "200901".."200912") and boosting > this field at query time on the terms closest to today. For instance, today > I'd boost "201109" the most, "201108" a little less and "201107" a little > less still. > > You can do this at a more granular level, but it means passing more query > terms to the search. > > Cheers, > Phil > > On Mon, Sep 5, 2011 at 8:51 AM, Tania [yosoytha...@hotmail.com](mailto:yosoytha...@hotmail.com) wrote: > > > Hi all, > > I posted this topic one month ago but there were no related replies. I am > > interested in boosting my results by more recent date, this > > is, modifying they score so as to _newer documents have a slightly bigger > > score than older ones_ (notice that I _don't mean sorting by > > date_). > > I do know that I can't modify the score in runtime, so it becomes quite > > difficult. > > I have discovered new features in ES so it may be easier to achieve it > > right now. Maybe I could use a _boosting query_ to enhance the more recent > > ones and to demote the older ones. Is it a good idea? > > Any help is appreciated! Thanks! > > Tania ---
**Author:** ![Tania](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/tania/32/3123_2.png) [@Tania](https://discuss.elastic.co/u/Tania)\ **Post date:** [September 6, 2011, 7:18am UTC](https://discuss.elastic.co/t/boosting-results-by-date/5312/4 "2011-09-06T07:18:22Z")
Yes, my first intention was to use custom\_score but the performance was extremely poor. I would check boosting queries according to Phil's answer. Thanks a lot guys! I would post when I find an appropriate solution. ---
**Author:** ![kimchy](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kimchy/32/44952_2.png) [@kimchy](https://discuss.elastic.co/u/kimchy)\ **Post date:** [September 6, 2011, 10:15am UTC](https://discuss.elastic.co/t/boosting-results-by-date/5312/5 "2011-09-06T10:15:59Z")
What was the formula that you used to boost by date in this case? On Tue, Sep 6, 2011 at 10:18 AM, Tania [yosoythania@hotmail.com](mailto:yosoythania@hotmail.com) wrote: > Yes, my first intention was to use custom\_score but the performance was > extremely poor. > I would check boosting queries according to Phil's answer. Thanks a lot > guys! I would post when I find an appropriate solution. ---
**Author:** ![Rob\_Masters](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/rob_masters/32/2737_2.png) [@Rob\_Masters](https://discuss.elastic.co/u/Rob_Masters)\ **Post date:** [August 23, 2012, 2:24pm UTC](https://discuss.elastic.co/t/boosting-results-by-date/5312/6 "2012-08-23T14:24:49Z")
Hi Tania, apologies for bumping an old question but I'm trying to achieve exactly the same thing[http://stackoverflow.com/questions/12091365/is-it-possible-to-boost-newest-items-using-elasticsearch-foqelasticabundle](http://stackoverflow.com/questions/12091365/is-it-possible-to-boost-newest-items-using-elasticsearch-foqelasticabundle) at the moment and haven't found any examples of this, which I'd have thought is a very common requirement. Would you mind sharing what your solution was, assuming you found one and that you can remember that far back. Thanks On Tuesday, 6 September 2011 08:18:22 UTC+1, Tania wrote: > Yes, my first intention was to use custom\_score but the performance was > extremely poor. > I would check boosting queries according to Phil's answer. Thanks a lot > guys! I would post when I find an appropriate solution. -- ---
**Author:** ![Rob\_Masters](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/rob_masters/32/2737_2.png) [@Rob\_Masters](https://discuss.elastic.co/u/Rob_Masters)\ **Post date:** [September 6, 2012, 12:18pm UTC](https://discuss.elastic.co/t/boosting-results-by-date/5312/7 "2012-09-06T12:18:19Z")
Solution: > On Thursday, 23 August 2012 15:24:49 UTC+1, Rob Masters wrote: > Hi Tania, apologies for bumping an old question but I'm trying to achieve exactly > the same thing[http://stackoverflow.com/questions/12091365/is-it-possible-to-boost-newest-items-using-elasticsearch-foqelasticabundle](http://stackoverflow.com/questions/12091365/is-it-possible-to-boost-newest-items-using-elasticsearch-foqelasticabundle) at > the moment and haven't found any examples of this, which I'd have thought > is a very common requirement. Would you mind sharing what your solution > was, assuming you found one and that you can remember that far back. > > Thanks > > On Tuesday, 6 September 2011 08:18:22 UTC+1, Tania wrote: > > > Yes, my first intention was to use custom\_score but the performance was > > extremely poor. > > I would check boosting queries according to Phil's answer. Thanks a lot > > guys! I would post when I find an appropriate solution. -- ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 3:13am UTC](https://discuss.elastic.co/t/boosting-results-by-date/5312/8 "2017-07-06T03:13:55Z")