Determining the importance of items across sets?












0












$begingroup$


There's a better term for it. Let's say i have a suite of sets - A, B, C, D.



Each set contains any number, in a non-important order, of items - 1,2,3,4,5,6 The items may occur any number (0 or more) of times in a set.



Is there some agreed-upon formula to determine the "most important" item? Or are there algorithms for this?










share|cite|improve this question











$endgroup$












  • $begingroup$
    The question makes no sense unless you tell us your definition of "most important".
    $endgroup$
    – David C. Ullrich
    Jan 10 at 19:18












  • $begingroup$
    @DavidC.Ullrich oh! good one! I don't know, i was honestly hoping there would be an algorithm for that. i'm settling for tf-idf, but is there anything else to consider?
    $endgroup$
    – bharal
    Jan 10 at 19:52












  • $begingroup$
    "an algorithm for that: an algorithm for what?
    $endgroup$
    – David C. Ullrich
    Jan 10 at 22:21
















0












$begingroup$


There's a better term for it. Let's say i have a suite of sets - A, B, C, D.



Each set contains any number, in a non-important order, of items - 1,2,3,4,5,6 The items may occur any number (0 or more) of times in a set.



Is there some agreed-upon formula to determine the "most important" item? Or are there algorithms for this?










share|cite|improve this question











$endgroup$












  • $begingroup$
    The question makes no sense unless you tell us your definition of "most important".
    $endgroup$
    – David C. Ullrich
    Jan 10 at 19:18












  • $begingroup$
    @DavidC.Ullrich oh! good one! I don't know, i was honestly hoping there would be an algorithm for that. i'm settling for tf-idf, but is there anything else to consider?
    $endgroup$
    – bharal
    Jan 10 at 19:52












  • $begingroup$
    "an algorithm for that: an algorithm for what?
    $endgroup$
    – David C. Ullrich
    Jan 10 at 22:21














0












0








0





$begingroup$


There's a better term for it. Let's say i have a suite of sets - A, B, C, D.



Each set contains any number, in a non-important order, of items - 1,2,3,4,5,6 The items may occur any number (0 or more) of times in a set.



Is there some agreed-upon formula to determine the "most important" item? Or are there algorithms for this?










share|cite|improve this question











$endgroup$




There's a better term for it. Let's say i have a suite of sets - A, B, C, D.



Each set contains any number, in a non-important order, of items - 1,2,3,4,5,6 The items may occur any number (0 or more) of times in a set.



Is there some agreed-upon formula to determine the "most important" item? Or are there algorithms for this?







pattern-matching






share|cite|improve this question















share|cite|improve this question













share|cite|improve this question




share|cite|improve this question








edited Jan 10 at 19:18









David C. Ullrich

60k43994




60k43994










asked Jan 10 at 18:33









bharalbharal

1966




1966












  • $begingroup$
    The question makes no sense unless you tell us your definition of "most important".
    $endgroup$
    – David C. Ullrich
    Jan 10 at 19:18












  • $begingroup$
    @DavidC.Ullrich oh! good one! I don't know, i was honestly hoping there would be an algorithm for that. i'm settling for tf-idf, but is there anything else to consider?
    $endgroup$
    – bharal
    Jan 10 at 19:52












  • $begingroup$
    "an algorithm for that: an algorithm for what?
    $endgroup$
    – David C. Ullrich
    Jan 10 at 22:21


















  • $begingroup$
    The question makes no sense unless you tell us your definition of "most important".
    $endgroup$
    – David C. Ullrich
    Jan 10 at 19:18












  • $begingroup$
    @DavidC.Ullrich oh! good one! I don't know, i was honestly hoping there would be an algorithm for that. i'm settling for tf-idf, but is there anything else to consider?
    $endgroup$
    – bharal
    Jan 10 at 19:52












  • $begingroup$
    "an algorithm for that: an algorithm for what?
    $endgroup$
    – David C. Ullrich
    Jan 10 at 22:21
















$begingroup$
The question makes no sense unless you tell us your definition of "most important".
$endgroup$
– David C. Ullrich
Jan 10 at 19:18






$begingroup$
The question makes no sense unless you tell us your definition of "most important".
$endgroup$
– David C. Ullrich
Jan 10 at 19:18














$begingroup$
@DavidC.Ullrich oh! good one! I don't know, i was honestly hoping there would be an algorithm for that. i'm settling for tf-idf, but is there anything else to consider?
$endgroup$
– bharal
Jan 10 at 19:52






$begingroup$
@DavidC.Ullrich oh! good one! I don't know, i was honestly hoping there would be an algorithm for that. i'm settling for tf-idf, but is there anything else to consider?
$endgroup$
– bharal
Jan 10 at 19:52














$begingroup$
"an algorithm for that: an algorithm for what?
$endgroup$
– David C. Ullrich
Jan 10 at 22:21




$begingroup$
"an algorithm for that: an algorithm for what?
$endgroup$
– David C. Ullrich
Jan 10 at 22:21










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