Tagged Questions

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.

learn more… | top users | synonyms (1)

0
votes
1answer
17 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 ...
1
vote
0answers
7 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 ...
1
vote
0answers
23 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 ...
0
votes
0answers
22 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 ...
0
votes
0answers
24 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 ...
0
votes
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 ...
1
vote
2answers
198 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 ...
1
vote
0answers
50 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 ...
0
votes
1answer
57 views

Analysing ranked data

I had following question in my questionnaire: Rank following factors: price, quality, advertisement, brand, reference from 1 (very important) to 5 (least important) that influenced on your buying ...
1
vote
1answer
30 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 ...
1
vote
1answer
26 views

A/B split/bucket testing with three or more variants

Lets say I have three search engine e.g. search engine A, search engine B and search engine C. Each search engine is given a set of queries Q (e.g. apple,banana,carrot....), this set Q remains the ...
1
vote
0answers
45 views

Hierarchical ordinal regression (or ranking) with prediction constraints on clusters?

I am interested in predicting an ordered outcome of 0,1,2 or 3 (0<1<2<3) for individual responses in a bunch of different clusters. In each cluster $i$ of size $n_i$ there is a single 3, 2 ...
5
votes
2answers
90 views

Metrics for comparing estimated lists to a 'true' list

I'm wondering what the best ways to compare (possibly ranked) lists when we know what the true ranking is and also the variable that decides the ranking. Say this is the top 10 of a certain list, we ...
1
vote
1answer
21 views

rank data in subsets

I have a data asset where one "unique"ID corresponds to multiple cases, shown below. I am looking for a way to create a column ranking each ID by another column but keeping the rank unique for each ...
0
votes
0answers
8 views

Aligned Rank Transform with random factor

In an aligned rank transform preceding a two-way ANOVA, the procedure is: save residuals by performing a standard ANOVA use Aggregate to determine effects for group means (mij for interaction, ai ...
0
votes
0answers
73 views

Calculate rating/score based on multiple criteria to rank data

I extract data related to a movie by sentiment analyzing the reviews. Hence,extracted movie data contains average sentiment values (avg_pos and avg_neg) calculated over multiple reviews, total no of ...
2
votes
0answers
19 views

Rank Order Analysis with Missing Values

I have several survey questions that allow a respondent to choose their top three choices from a set of potential answers--basically "What is the most important, 2nd most important, 3rd most ...
2
votes
1answer
91 views

Rank histogram (or Talagrand Diagram) of precipitation data

Given a dataset of lines containing 6 wind forecast values plus 1 observed (actual) value in each like: ...
1
vote
1answer
22 views

Effect of sample decimal points on power in rank-based tests

I perform different rank-based non-parametric tests (Friedman and Nemenyi) post-hoc and noticed that the decimal places of the samples have a strong effect on their power. Please consider the ...
0
votes
1answer
18 views

How to use a set attributes of an entity at different time snaps to make predictive analysis?

The problem is to come up with a classifier for any task based on a set of attributes of an entity having different values at different times. For instance think about football players and their match ...
1
vote
0answers
11 views

Classification Residual Analysis with rank-based goal

I have a dataset consisting of users, each with a number of items (ranging from 1 to 100). The end-goal is for each user to be able to predict the ranking the of the items according to some other ...
2
votes
0answers
20 views

Stores and ordered rank of products

I have data about popularity of some products in some stores. For each of the stores I have only a ordered rank of best-selling products in them. I need help how to find information about which ...
1
vote
0answers
33 views

categorical feature ranking

I would like to rank categorical features by the order or importance in a classification/regression setting. Input There are two features, which are survey questions: "how is your mood?": four ...
0
votes
0answers
5 views

Ranking of multiple results [duplicate]

I have a four columns data in a table that looks something like this : ...
1
vote
0answers
45 views

probability that a variable is ONE OF the top k out of n when ordered

Suppose ($h_1,h_2,...,h_n$) is an $n\times 1$ vector. Let $h_i=g_iX_i$, where $g_i$ is a non-random variable which can vary across $i$ and $X_i$ is a random variable with Pareto Type I distribution. ...
2
votes
1answer
48 views

Model for probability of song reaching top 10 ranking, over time?

I'm trying to model the probability of a song reaching Billboards top 10 over time. My data has the columns "Day since release", "If reached top 10". For example, [12,1] means the song hit top 10 on ...
0
votes
0answers
11 views

Using multinomial logit to rank observations

I'm trying to devise a model to rank a number of links according to their popularity. The links refer to upcoming events and job offers, and ideally I'd like to have a reasonably simple model that, ...
0
votes
0answers
24 views

Kruskal-Wallis, rank data

I want to perform a Kruskal-Wallis test, but I can't figure out whether this test will automatically rank my data or whether I have to rank it myself before I run the test.
1
vote
1answer
55 views

multivariate sorting / ranking

I have data for 1000 students' performance over 10 different tests on a scale of 0 -100 (a 1000 rows X 10 col matrix). I calculated the mean score and the associated coefficient of variation for each ...
2
votes
0answers
27 views

Predicting Rank of Google Result

I am trying to predict when one website will beat out another on google. I have three variables for each website, a Page Authority (P), a Domain Authority (D), and a Keyword Relevancy (K). What I am ...
1
vote
0answers
18 views

check for players undergoing the maximum/minimum change in time course data?

I have time series data of many variables (This data comes from high throughput biological experiments, which measure the amount of particular biological components such as RNA content of a cell etc., ...
2
votes
0answers
38 views

Average of percentile ranks

I have a number of objects (e.g. students) and their scores (possibly transformed into percentile ranks) across various events (e.g. tests). I would like to identify the students who consistently ...
0
votes
0answers
48 views

How do you verify a rating system?

Let's say I have a database of a lot of (thousands) chess games. In chess, every player have a rating, called ELO that gives an estimation how strong is this player. If we know the the ELO ranking of ...
0
votes
1answer
15 views

Solving feature bias issues in Learning to Rank with implicit feedback

I have a learning to rank system where implicit feedback (from user clicks) is used to determine +ve and -ve examples for the training. The problem is that (obviously) the learner sees only the top ...
1
vote
1answer
77 views

Creating a composite rank of restaurants with some missing data

I have monthly sales data of 500 restaurants for one year. For the same restaurants, I also have customer defection or dissatisfaction rates. I want to create a composite score that can rank ...
2
votes
0answers
33 views

Expectation of probability less than r-th sample in order statistics

(a)how can be r/(n+1)? in my lecture notes, Dist. of r-th order statistics is but i can't figure out how to come out (a) from this equation. any help?
1
vote
0answers
32 views

Generating realizations of sampling distributions

I have a sample of $N$ individuals. I know (assume) that the distribution of species' abundances follows a particular form, e.g., negative binomial. A nested example of these kinds of distributions is ...
1
vote
0answers
28 views

Transforming Rank-Ordered Variable

I am currently working on an archival dataset (General Social Survey 1985). In a measure, participants are asked to rank 5 job characteristics by degree of preference. In other words, participants ...
4
votes
1answer
133 views

A question on a non-parametric estimating equation

This is a question that arose from studying Hogg and Craig "Introduction to Mathematical Statistics",7th edition, pg 568. It is assumed that we have taken a random sample of $X_1,\ldots,X_{n1}$ and ...
0
votes
0answers
32 views

How to create a “universal ranking” from scores across different data sets

I'm trying to do this project that creates a sort of "universal score" across a set of games - if I play a game that gives me a certain score, and I have a friend who plays a different game and has a ...
1
vote
0answers
53 views

Friedman's test to identify best of multiple classifiers on multiple domains

I have several classifiers f_i (i=1..N) and calculated performance measures on multiple domains (D) for each. Thus, there are NxD values. I want to find out (increasing complexity): Is a particular ...
1
vote
0answers
25 views

Calculate Best Content from Rating and Downloads

I'm currently storing the following things in my Database about user submitted content: Downloads: The total Download count of the Content Likes: A user can either like a content or do nothing How ...
3
votes
1answer
26 views

Seeding problem for a 3-way bracket

I apologize in advance if this is not the correct place for this question. I'm going to be running a 36-person tournament in a certain activity, with the first two rounds being 3-way competitions ...
1
vote
0answers
69 views

Learning to Rank: query-dependent vs. query-independent features

I've been doing some reading about learning to rank - specifically lambdaMART - and one thing I am confused about is the role of features. When training a model, should one only use query-dependent ...
1
vote
1answer
184 views

Is there an equivalent to Lower bound of Wilson score confidence interval for variables with more outcome

After reading "How Not to Sort by Average Rating" (http://www.evanmiller.org/how-not-to-sort-by-average-rating.html), I was curious to know if there was the same thing for variables with more than two ...
0
votes
0answers
27 views

Ranking based on multiple parameters

I am xyz organization. I have recruit entry level engineers from 100 colleges. I have their performance, attrition & promotion data for last 3 yrs. I have 4 parameters performance, promotion, ...
0
votes
0answers
15 views

Analysing a rating scale with many predictor variables

My response variable is derived from a question in which respondents expressed a preference score (from 1 (do not like) to 10 (like alot)) for a range of scenarios. I would like to analyse this data ...
1
vote
0answers
20 views

Regularization in unordered vectors

Let suppose we are given two vectors u, v $\in \mathbb{R}^n$ and we want a function that returns $0$ if the ordering of the elements of both vectors are the same or a positive number otherwise, where ...
1
vote
1answer
27 views

How to statistically determine if something appears in the beginning of a vector

I have multiple vectors of letters, in which an entry can appear multiple times. The vectors are of variable length. ACBDEABAEE ACDE ACBDBBDDE I want to ...
0
votes
1answer
84 views

Aggregate ranking from multiple ranked lists

I have multiples lists which are ordered. How do I generate a final list with all elements in all lists ranked by their cumulative rank? I.e. the Final column here: ...