math - What is the best algorithm to calculate the most scored item? -

-

I have music items that are scored by users between 1 and 5, and I run 5 most runs Create Formula Items

But obviously an item that receives 3.5 average scores from different average users of 1000, then more points will be received, only 5 users will get 4.9 average scores ... in other words It seems that if an item is carefully viewed for people to mark it, this indicates that the item is interesting so the parameters for votes in the calculation should be a power. (How much power? I'm not sure, and I'm asking you to get the idea).

I think that in the function we need the following parameters: Vote, VoteCount

< H2> You can use the weighted voting for 5-star system with many voters

(Internet Movie Database) to determine its IMDB's top 250, this calculation Uses. (Note: IMDB uses 10 stars, but formulas are similar to using 5 stars).

The weighted rating (WR) = (v ÷ (v + =) Votes = number of votes for movie = (vote)

  • = Average for movie (average) = (rating)
  • V =
  • M = Minimum votes that must be listed in the top 250 (current 3000)
  • C = Median vote in full report (currently 6.9)
< / Blockquote>


Comments

Post a Comment

Popular posts from this blog

oracle - The fastest way to check if some records in a database table? -

-
I have a big table to work with. I have to see that there are some records whose parent_id is equal to my passing value. Currently I do this by implementing "my_table using select count (*) where parent_id =: id"; If the result> 0, it means that they exist. Because this is a very large table, and I do not care what the actual number of records present, I just want to know if it exists, so I think count (*) Bit is disabled. How do I apply this requirement most quickly? I'm using Oracle 10. # Tips for Hibernation & amp; Tricks It suggests writing in such a way: Integer number = (integer) session .createQuery ("Select Count (*) to ...."). UniqueResult (); I do not know what is the magic of the unique rule? Why does it fast? To compare, select "1 from mytable where parent_id = passId and rowrum", which is more efficient? If you are not interested in the number of records, then there is an EXISTS query one: Select 'y'
Read more

php - multilevel menu with multilevel array -

-
Just ask someone to solve this problem? I want to create a multilevel menu I can not find the right solution generated with multilevel array, it always gets an array_push error My study came from the original idea But still my Can not match the need. This is my MySQL [code] ----- --------------------- --------------- | ID | PARENT_ID | Name | Link | Seq | 1 | 0 | Dashboad | Dashboard / | 1 | 2 | 0 | Menu 1 | Menu 1 / | 2 | 3 | 0 | Menu 2 | Menu 2 / | 3 | 4 | 0 | Menu 3 | Menu 3 / | 4 | 5 | 2 | Joint Add / | 1 | 6 | 3 | Joint Add / | 1 | 7 | 2 | Edit | Edit / | 2 | 8 | 4 | Joint Add / | 1 ------------------------------------------ [/ Code] I want to do something like this in my array array ('dashboard' = & gt; array ('id' = & gt; '' 'Dame' = & gt; 'Dashboard', 'Title' = & gt; 'Dashboard', 'MatchMin' = & gt; Base_URL (). 'Dashboard /', 'Active' => = & Gt; NULL), &
Read more

jQuery UI: Datepicker month format -

-
I am trying to change the format of the month that shows in the popup (not in the date that the picker actually I do not have any choice anywhere to do this, do I like to use a sub-string () or something else? What I normally display is Trying to change: Class = "ui-datepicker-title"> January & lt; / span & gt; ... & lt; / div & gt; Div>
Read more