I don't understand... if a=1000 and b = 100, then
a-b=900 so 1 - | a - b | = 1-900 = -899 That doesn't make sense as a similarity score... Your posited measure seems only applicable when |a-b|<=1, which indeed would be the case if a and b lie in [-1.1] -- Ben On Sat, Feb 22, 2014 at 10:56 AM, Piaget Modeler <[email protected]>wrote: > A and B are any two numbers that can be represented computationally. > > We are looking for the similarity of any two numbers as part of a larger > similarity based matching scheme. The function Aaron provided will allow > the similarity to be computed in the range 0 .. +1 which is fine. As long > as it's between -1 and +1 it will do. > > Cheers, > > Michael. > > ------------------------------ > Date: Sat, 22 Feb 2014 09:54:20 +0800 > > Subject: Re: [agi] Numeric Similarity > From: [email protected] > To: [email protected] > > > I assume your numbers a and b are between -1 and 1? you didn't mention > that in your original email ! ... > > On Fri, Feb 21, 2014 at 10:02 PM, Piaget Modeler < > [email protected]> wrote: > > Thanks to all respondents. > > In the end I found a classic numeric similarity metric: 1 - | a - b | > > It's not ideal since numeric scores can dominate other attribute scores. > Ergo, I have to devise a good weighting scheme. > > Nothing's perfect I suppose. > > Cheers, > > ~ PM > > > *AGI* | Archives <https://www.listbox.com/member/archive/303/=now> > <https://www.listbox.com/member/archive/rss/303/212726-deec6279> | > Modify<https://www.listbox.com/member/?&;>Your Subscription > <http://www.listbox.com> > > > > > -- > Ben Goertzel, PhD > http://goertzel.org > > "In an insane world, the sane man must appear to be insane". -- Capt. > James T. Kirk > *AGI* | Archives <https://www.listbox.com/member/archive/303/=now> > <https://www.listbox.com/member/archive/rss/303/19999924-4a978ccc> | > Modify <https://www.listbox.com/member/?&;> Your Subscription > <http://www.listbox.com> > *AGI* | Archives <https://www.listbox.com/member/archive/303/=now> > <https://www.listbox.com/member/archive/rss/303/212726-deec6279> | > Modify<https://www.listbox.com/member/?&;>Your Subscription > <http://www.listbox.com> > -- Ben Goertzel, PhD http://goertzel.org "In an insane world, the sane man must appear to be insane". -- Capt. James T. Kirk ------------------------------------------- AGI Archives: https://www.listbox.com/member/archive/303/=now RSS Feed: https://www.listbox.com/member/archive/rss/303/21088071-f452e424 Modify Your Subscription: https://www.listbox.com/member/?member_id=21088071&id_secret=21088071-58d57657 Powered by Listbox: http://www.listbox.com
