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1answer
38 views

Algorithm for risky investments in banks

I made the following programming question on stack overflow but the users said it was more of math question. Here it is. Situation You start with a fixed amount of money, take it as $\$1000$. You ...
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2answers
84 views

Algorithm to calculate rating based on multiple reviews (using both review score and quantity)

First of all I must state that I am not a mathematician, so please correct me if I use wrong terminology. I am building a web application which needs to calculate the rating for each entity based on ...
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1answer
21 views

Creating a scoring algorithm for voting app

I have just created what I thought to be a good scoring algorithm until I looked at some demo results. It now looks pretty floored though I have a table with a number of images I have another table ...
2
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1answer
40 views

Board Game Score Calculation Suggestions?

My coworkers and I play board games at lunch. We've taken it so seriously that I've written an application to calculate a "player score" based on how you place in each game played. Here's how it ...
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0answers
39 views

Improving the Elo rating system to account for game results

I am looking for a ranking system for office table tennis. The popular option is the Elo rating system http://en.wikipedia.org/wiki/Elo_rating_system. This system is also popular in Chess I believe ...
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1answer
61 views

Rating system for 2 vs 2, 2 vs 1 and 1 vs 1 game

We play in table football in such configurations: 2 vs 2 players 2 vs 1 1 vs 1 Team (consisting of 1 or 2 players) wins the single game when they score 10th goal. I would like to introduce a ...
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1answer
45 views

An algorithm to rate players in team?

I would like to design an algorithm to rate players in a team sport. One team of N players plays a match against another team of N players. The individual players will possibly change, from match to ...
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1answer
39 views

Logistic Scoring Correction

"Consider the logistic curve $f(x)=\frac{1}{1+e^{-bx}}, -1 \leq x \leq 1$. We wish to use this curve to make a scoring correction formula $g(x)$ for an $n$ item test. The domain and range are both ...
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19 views

Determining probability of continuous data given predictions

I am doing an investigation into the math used in ScoreAHit's algorithm. In their documentation page they discuss a value they computed dubbed "harmonic simplicity." Their equation for calculating ...
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2answers
58 views

Percent Error of a Typical Exam

In the Japanese national mathematics exam system, students are asked to work questions and bubble in the last digit of the answer. Thus the "scantron" form has ten possible answers for each question: ...
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1answer
38 views

Tips, tutorials, help for writing an algorithm

I'm struggling with the concepts of writing a formula that will help me tease out certain characteristics of strings I'm comparing. I know this is mathexchange, but bear with me. Essentially, I have ...
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0answers
24 views

Algorithm to evaluate predictions

I am looking for an algorithm* to solve the following problem Scenario I'm observing a sequence of things. Every thing has some arbitrary visible properties and a hidden probability $p$ to turn out ...
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0answers
66 views

How can I turn a hypergeometric p-value into a score?

I have a list of hypergeometric probability values that give me the likelihood of association between two items. For each pair of items, I have used R's ...
2
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1answer
84 views

Formula for Game Score Normalization

My friends and I play a lot of board games together. In an effort to keep track of how we do between each game, we use a simple method to normalize the scores. For example, let's say we have the ...
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1answer
64 views

K Nearest Neighbors classification Special Case with Identical Points

The question is about KNN algorithm for classification - the class labels of training samples are discrete. Suppose that the training set has n points that are ...
3
votes
1answer
68 views

Photo Rating System based of Community 'Likes'

I'm hoping to get some assistance from some math gurus on a troubling problem i'm having with a website. The site has a very large gallery (millions of photos) which are uploaded by users. The users ...
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1answer
42 views

Points Calculator

I'm trying to formulate an equation for a online ranking system, I would like to award points to users based on there rank and the total number of users. I would like something similar to below, where ...
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1answer
25 views

Create range in base of ratio

I have a big problem to calculate votes with my excel documents. I have some field for a project: - minimum estimate in hours (before I start a project I tell how many hours I think to do for this ...
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0answers
30 views

What algorithms do you know for beltway reconstruction?

I've faced the beltway reconstruction problem and I've developed a simple backtrack algorithm, what algorithms do you know for this problem? Beltway Reconstruction Problem: Assume there is a set of ...
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2answers
123 views

Calculate price score

I want to create an algorithm/calculation that helps me figure out if the price on a used vehicle is high or low. My thoughts are that to calculate this i need a critical mass of previous vehicle ...
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1answer
30 views

algorithm to assign points to winning users

I have a set of users who have won a game ('jim', 12), ('james', 54), ('john', 76), ('dave', 22), ('garry', 34), ('stuart', 16) I would to award them a share of ...
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4answers
138 views

What is a good measure of “controversy”, given a support score and opposition score?

Suppose I have a topic or discussion, and a number of "support" and "opposition" points on each side (You can also think of them as "upvotes" and "downvotes") and I want to calculate a score of how ...