Ranking is ordering data from highest to lowest or *vice versa.* For questions about *constructing* scores to use in ranking, please use the "valuation" tag, too.

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How do I visualize participants' rankings of options in order of preference?

I asked people to 'Rank in order which social media platforms you use most', using Google forms. (The ranking $1$ represented the most used.) There were 10 different social media platforms to choose, ...
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18 views

How to analyze ranks as responses?

A client has data where multiple subjects (people) have been presented with with four product alternatives, and after experiencing all four, were asked to rank the products. The data look like ...
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1answer
16 views

comparison of more than two sets of rankings

I have 4 judges who listened to a set of 35 musical auditions. Each judge was then tasked with ranking the auditions from 1-35 in order of performance ability. What test can I use to compare agreement ...
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15 views

Differences between a 100 point grading scale, 10 point grading scale and a 5 point grading scale?

If I am ranking a set of items based on their performance on a set of categories (each of which has a different importance, or weight, in the total score). What are the pros and cons of a 100 point ...
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4 views

How to adjust rank for ad for its recent trend in click-through-rate?

I am building an optimization service for an Adtech company. For ranking ads in terms of performance, I am using formula: Log(impressions)*eCPM. Impressions means the number of times ad was ...
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21 views

ranking based of number of items and value

How to avoid the issue of an item with a single 5-star rating getting a higher average rating than one with (99 5-star ratings and one 4-star rating). How to properly rank based on average star and ...
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1answer
59 views

Analyzing Ranked Data: Correlation and Factor Analysis?

I had survey respondents rank a series of items in order of importance, from 1 to 7. So, if a respondent assigned a score of 1 to one variable, then none of the other variables could get a 1 as well. ...
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1answer
51 views

Ranking batters by average when number of observations (innings) vary

This is my first post here and I'm new to this area so please forgive me if I'm asking a naive question. I want to rank a number of batsmen (e.g., in cricket) by their skill. I'm planning to use ...
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6 views

How to combine probabilities for (partial) set ordering?

Say you have a situation where you can measure related values for a number of parameters (say A, B, C & D) and thus order those values (e.g. A>B>C>D or D>B>A>C). You have a population of ...
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2answers
38 views

TF-IDF versus Cosine Similarity in Document Search

I'm wondering if anyone can help me out or point out some resources to learn more about TF-IDF and document search. I'm trying to implement a basic document search and am trying to better understand ...
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6 views

Calculating parameters for a custom ranking algorithm with no training data

On my site, we want to be able to sort search results for books by hot they are. When a book is added to the site its hotness is set to number of hours since the epoch, purchases, reviews and ...
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3 views

Determining utility from force-ranked responses

I am a product manager at a software company. We are thinking about offering a new reporting feature. There are about 15 different columns that we could display, each providing descriptive statistics ...
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1answer
32 views

How to rank rankings? Two factors - freq and rank but freq has to has much more weight

My respondents has to evaluate number of items (say, 20). Formerly they had to just check three that they liked (like/dislike) and I simply counted the most checked. I 'improved' survey by replacing ...
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11 views

Averaging Rank Sum Weights and Rank Order Centroid

I have calculated Weights of fourteen items using Rank Order Centroid, Rank Sum Method. ...
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17 views

Multi-Competitor Rankings Applied to a Sport

I have data of the form: competition ID | player ID | score What I want is a function that would absoluteHistoricalScoreOfPlayer(all historical scores). What I possibly might need is a Plackett-Luce ...
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0answers
12 views

Extracting latent factor from ranking data

I want to construct a model to link between a set of quantitative engineering parameters (e.g. Sm, Ra) of 9 material samples to a set subjective qualitative rankings of 6 perceived attributes, e.g. ...
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24 views

How to tune parameters of SVM Rank?

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? Below are the different parameters: ...
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0answers
28 views

Confidence intervals for median from Wilcoxon signed rank statistic

We are given the sample $X_1, ..., X_n$ from a common distribution with median $\mu$. Using Wilcoxon's signed rank statistic, how can I construct a confidence interval in terms of the order statistics ...
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27 views

Scoring model/formula to rank based on accuracy of data sources

Let us say i have 5 different data sources. My aim is arrive a score to arrive the accuracy of this data sources. It is like below 1. Refer the section Data confidence calculation in ...
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41 views

How to do ranking with scikit-learn random forest model

I have a training dataset that I've developed, that has the following format: ------------------------------ | User ID | Item | Label | ------------------------------ | 001 | umbrella | 0 ...
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22 views

What algorithm can give me a probability-ranking on text-classifaction problems

I'm trying to classify e-mails using tokens in the text and headers. What I would like to know is which class a new e-mail most likely belongs to. The answer could be more than one class or could ...
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2answers
30 views

Can I use SVM classification probability for ranking?

I have used SVM for finding relevant results, denoting relevant results by class 1 and irrelevant results as class 0. SVM gives a probability of the label assigned. Can I rank the results of class 1, ...
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0answers
11 views

Ranked responses across survey questions

We have a set of arthritis disease activity questions. Patients are given a scenario that describes a disease activity level scenario, like (A)"It is not painful to write" or (B)"It is painful to ...
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35 views

How to sort some variables based on their importance?

I have very little knowledge of statistics so please point me in the right direction if this question has already been answered. I tried searching but don’t know the correct keywords to search for. I ...
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2answers
21 views

Ranking estimation with partial data

Consider a problem where we ask a number of people to select and rank their top three choices out of a number of options. The set of options is the same for everyone, and they all have to rank their ...
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1answer
52 views

How to find similar users by looking at their votes in a community website?

I run a community website with ~1600 users who made 750 000 votes on 100 000 posts. The votes are made on the Likert scale, i.e. from 1 to 5. I want to help users find like-minded people. After some ...
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1answer
47 views

How do I rank companies? [duplicate]

I have some information against each company we deal with. For e.g. number of employees, business volume, average salary, etc. Which technique can I use to rank each company against the others? ...
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1answer
17 views

Ranking performance measure

I have a system able to produce a ranking of some operations according to their anomalous score. I have N anomalous operations inside the dataset, which I expect to be in the first N positions (best ...
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16 views

Measure the Ranking of Variables

What I want to do is compare the ordering of variables determined by the ranking of each variable. For example: Say, I have a rating system that is made up of 5 different ratings - Excellent Good ...
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0answers
25 views

Which stats model to predict rank when participants arrange conditions by rank?

Just a quick clarification: This question is about when participants specify which condition is most X, second most X, third most X, etc. It's not about the researcher converting continuous DV's into ...
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15 views

Confidence in a rank ordering (Fez)

The beautiful indie game Fez has numerous puzzles and centers around cryptic messages that are read to you in an "alien language". At one point, you can enter a village, where all the villagers speak ...
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1answer
23 views

Getting less number of features in weight vectors as were provided for SVM

I have trained a SVM with 18881 features and wanted to know the ranking of features. I tried the method given at http://stackoverflow.com/questions/7390173/svm-equations-from-e1071-r-package for it ...
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2answers
37 views

How to correct for absolute values when looking at relative values?

Apologies if this is a duplicate. I have a website with a large number of URLs, and I also have data on the number of unique page-views and online feedback generated for each URL. I would like to find ...
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1answer
36 views

How do you test for a trend in a series of random variables?

If I want to test whether black mice are heavier than white mice it's pretty easy to set up a t-test where I'm comparing the mean weights of a bunch of mice, but if I wanted to test whether black mice ...
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29 views

repeated measures ranking data

I have a repeated measures design where 180 participants rank their preferences for 12 items at time1, and then undergo an intervention, and then they rank their preferences for the same 12 items ...
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3answers
97 views

Network centrality in a set of networks with shared nodes

I have a set of weighted networks, each represented as a complete graph composed of nodes and connections with weights (see also "weighted networks" on Wikipedia). All networks share the same nodes ...
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0answers
42 views

Algorithm to Rank “Risk Factors” on Individual Level from Logit Regression Scoring

I have a logit regression which predicts the probability of attrition. The equation is roughly: ...
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0answers
21 views

How to merge two ratings into a single one?

I have sixteen parameters which were analyzed on different scales and their absolute weights or ratings are calculated using AHP For Variable1/Parameter ...
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1answer
27 views

Determine whether something is “significantly maximal”

The problem: I have a measure $D_i$ that quantifies how well a single target "feature" can be predicted from a set of (other) features $i$ (similar to an AUC). $D_i$ is computed based on a set of $n$ ...
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0answers
33 views

Statistic for measuring amount of “reordering” between two vectors?

Ok, so here's the motivating situation: I have two pieces of software for which I can feed in an RNA sequence, and get out a numerical value. And while it's clear that one of the pieces of software ...
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1answer
76 views

Weighted Kendall tau rank correlation coefficient

I need to use a measure to compare two rankings: Consider the ground truth as 1,2,3,4,5,6. Let two rankings be R1 and ...
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1answer
45 views

How do search engines generate related searches?

I would like to know how search engines like Bing generate related searches when the user starts typing into the search box. From what I gather, there has to be some sort of a ranking algorithm where ...
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0answers
9 views

Appropriate correction for tests for determining best of family

I have a sample of $N$ instances of a problem (assumed to be independent samples of an infinite population of instances). To each of these instances I apply $M$ methods, and record how quickly they ...
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1answer
37 views

Comparing ranks within groups

I've got data from a psychology research study where participants are given scores for various different situations. I'm looking at comparing the rank of those scores - is the person ranked as 1st in ...
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0answers
35 views

About Bayesian formula and rating system

I'm building a scoring system with score from 0 to 5) and I would like to sort products according to the number of reviews and their scores. After some research on the Internet I have found two ...
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0answers
64 views

How to calculate sample size for poll / ranking

Let's suppose there are Y options to choose from. I'd like to run an experiment with a sample of n participants (from a larger population), each will choose 1 option from the Y alternative according ...
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1answer
6 views

Select the most confident variable that has two features

Suppose now I have a group of students, and for each student two measurements are given: one is the height of the student and the other is the weight of the student. Then my question is how I can ...
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2answers
204 views

How do I estimate P(skill(player1)>skill(player2)) when I know the number of (presumably independent) 'wins' and 'losses' of player1 and player2?

How do I estimate the probability P(skill(player1)>skill(player2)) when all of the following apply: I know the number of wins and losses of player1 and player2. I can assume that the wins and losses ...
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0answers
79 views

Regression analysis of rank data

The dependent variable is Binary data and independent variables are ranks from 1 to 5. What method should I use in order to examine the relationship between these variables? I am analyzing survey ...
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1answer
33 views

Rank individuals according to 3 different scores

I'm looking for a technique that would help me rank individuals according to 3 scores A, B and C (each representing a separate score in 3 specific fields). A, B and C are all normalized value between ...