unity-design team mailing list archive

[Anup Verma <anupverma20@xxxxxxxxx>]

Can't we give option to the User so that he could choose to search either
according to the application-name or according to the description of the
application.


 ***********************************************************************************************************************************

On 5 October 2011 17:20, Mikkel Kamstrup Erlandsen <
mikkel.kamstrup@xxxxxxxxxxxxx> wrote:

> On 10/04/2011 10:57 AM, Matthew Paul Thomas wrote:
>
>> Mikkel Kamstrup Erlandsen wrote on 03/10/11 14:16:
>> >
>>
>>> On 10/03/2011 03:06 PM, Mikkel Kamstrup Erlandsen wrote:
>>>
>> >>
>>
>>> On 10/03/2011 01:26 PM, Anup Verma wrote:
>>>>
>>> ...
>>>
>>>> Let us search for MultiGet. When I write "Mult" in the search
>>>>> MultiGet appears at the 6th position. As soon as I add 'i', I see
>>>>> that surprisingly, MultiGet now appears at 10th position with some
>>>>> rather irrelevant options before it.
>>>>>
>>>> ...
>>> Looking more into this I realise what the real problem is. The problem
>>> lies in applications which contain the term "multi" as a single token.
>>> Fx. applications which incorrectly spells "multimedia" as
>>> "multi-media".
>>>
>>
>> None of them do.
>>
>
> Thanks
>
>
>
>>  This latter form becomes indexed as two words "multi" and "media".
>>> This gives and exact match on the word "multi" when searching and this
>>> ranks higher than a prefix-match on words such as "MultiGet".
>>>
>>> Academics aside - the fix is still to make sure that any form of match
>>> in the app title scores higher than matches in the description.
>>> ...
>>>
>>
>> I expect that would make things even worse, as MultiGet (which at least
>> has "multi-" in its description) would then face stiffer competition from
>> Auto Multiple Choice, Multiple Screens, Multilingual Terminal,
>> Multiplication Puzzle, Multimedia Systems Selector, etc.
>>
>> But if you'd like to try, feel free to make your own branch, and compare
>> its results with 5.0 on <https://wiki.ubuntu.com/**
>> SoftwareCenter/SearchTesting<https://wiki.ubuntu.com/SoftwareCenter/SearchTesting>
>> >.
>>
>>
>
> As I suggested elsewhere in this thread we may have more luck if we simply
> tokenize CamelCase words. This is unfortunately not very easy to do in
> Xapian, and hacking around it will be likely to have side effects such as
> breaking CJK search.
>
> For someone interested in doing this I'd suggest patching
> Xapian::TermGenerator to add a flag that turns on CamelCase tokenization.
> That will provide an upstreamable solution that will be easy and clean to
> test in Ubuntu applications.
>
> Cheers,
> Mikkel
>
>
>
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