Let's say users input their top three (or N) preferred baseball positions: // first element of each list being most preferred userA = ["backcatcher", "center field", "short stop"]; userB = ["pitcher", "backcatcher", "center field"]; userC = ["pitcher", "center field", "short stop"]; userD = ["short stop", "backcatcher", "pitcher"]; ... users =...

Is there any case when IDF is better than TF-IDF? As far I understood TF is important to give a weight to a word within a document to match that document with a predefined query. If I'd like just to sort the importance of words in a collection of documents...

Is there a way to create a row_number "on the fly" without ordering by a column? I've got this query : select regexp_substr(',A-B,B-C,C-D', '[^,]+', 1, level) as legs from dual connect by regexp_substr(',A-B,B-C,C-D', '[^,]+', 1, level) is not null And I need to keep the order of my rotation, but...

I'm a CS student doing a report on alternative voting systems. One of the best systems I believe is a ranked vote. For example.. In a presidential election, each president would be ranked 1-5. (IMO the problem with the US system is that only votes for the winner actually count)...

First Create some example data (e1,e2,e3 are types and test is the index name): PUT test/e1/1 { "id":1 "subject": "subject 1" } PUT test/e2/1 { "id":1 "subject": "subject 2" } PUT test/e3/2 { "id":2 "subject": "subject 3" } Now my question is: how can I get just these two data?...

I have a program that takes an input query and ranks the similar documents based on its TFIDF score. The thing is, I want to add some keywords and treat them as the "input" as well. These keywords will be different for each query. For example if the query is...

In Excel there's a function Rank Average (see documentation). I wish to do the same in PHP. Looking online, I find a lot of ranking solutions, but not a lot of those take duplicates into account and when they do, the result I get is not the same as Excel...

I am using SVM Rank, which has multiple parameters, changing whom I am getting a variety of results. Is there some mechanism to tune and get the best parameters, as tuned according to the best results on validation set? Below are the different parameters: Learning Options: -c float -> C:...

I want to know the fastest and most efficient way to compute points and ranking in real time. I'm doing a betting football game (a game where users try to predict the outcome of a game before it). In my country is called "Quiniela". Players put "predictions" just before the...

My goal is to sum the scores with removing the top 2 highest and lowest 2 scores (Row T). I have been trying to figure out how make the number error change to zero, but am having a difficult time. My formula is =(SUM(D9:N9)-LARGE(D9:N9,1)-LARGE(D9:N9,2)-SMALL(D9:N9,1)-SMALL(D9:N9,2)) Your time and help is very...

I have a sequence of numbers and vectors that should be used to evaluate each of the sequence of numbers according to their ranks. Example a <- c(20, 29, 22) b <- c(21, 22, 27) data <- data.frame(cbind(a,b)) c1 <- c(12,23,34,21,33,22,35,3,5,6,7,29,49) c2 <- c(12,23,34,21,33,22,35,3,5,6,7,29,49) How can I check the rank...

I have been analyzing click data from our Google Search Appliance (GSA) Advanced Search Reports (ASR), and I have run into a bit of an issue. I am trying to generate a .csv report that is ordered by a "priority" that determines which queries would benefit from a manual boost...

I'm analyzing some sports data, and I have a set of win/loss records for about 40 teams. I would like to come up with a ranking where each win is weighted by the strength of the opponent. This would have to be some iterative/recursive sort of thing where the weights...

I'm writing a web app where people can add and vote on ideas. When outputting the ideas I want them to be ordered by their total vote count or time added, but always have a rank based on the vote count. This is what I have now: function get_ideas($status, $sortby,...

I have been Working on algorithms and formulas to find out a score for the products available on my ecommerce website.Basically, I want to calculate some kind of score to rank the products when a user searches it. I'll give some background on the criteria i am planning to define...

I am currently researching databases for a scalable game backend. Riak looks very nice from an operational point of view. I can easily see how to model user and game data and statistics in Riak. But I have trouble with leaderboards/ranking lists. Assuming we have millions of players and the...

I am trying to work out the ranking of top 3 users at different organisations and have the data presented horizontally for each user so it can be inputted into our email system to personalise emails. I am able to create a ranking vertically but I am not sure how...

Im using a suggestion from Daniel Vassallo here to rank entries in my mysql table. The suggestion doesn't deal with ties and thats the way I want it as a newer entry does not get a higher rank than an older entry with the same score on my scoreboard that...

I used to search like this: curl -XGET localhost:9200/users/_search but users contains user a,b,c like this: curl -XGET localhost:9200/users/a,b,c/_search users is the first index, a/b/c is type. How to boost type a in this query? Best with sample code, thanks....

I have four formula type questions in a LimeSurvey were the resultants are integers e.g Q-1=23 Q-4=19 Q-7=45 Q-9=24 I need to find the greatest number and its related question # In this case the greatest # is 45 and the question # is Q-7 I have been reading the...