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Questions tagged [ranking]

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

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Ranking users by mean daily message count and least variation

I would like to rank users of a text and voice communication app by the number of messages sent, the amount of time spent on voice calls and number of interactions. This ranking should be updated in ...
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8 views

Models for ranking possible classifications by confidence

What are good means of finding the various highest confidences or likelihoods for a (say) hundred possible outcomes of a classification problem? Inputs belong to only one class, unlike document ...
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1answer
21 views

Is ordinal regression a classification or a ranking problem?

I’m confused, in wikipedia, ordinal regression is also referred as ordinal classification. Which makes sense since ordinal variables are in the end just categorical. On the other hand, ordinal ...
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30 views

How to determine bang-for-buck apart from just $/TB

Firstly, I'm no expert on statistics or any of the fancy jargon so please pardon my ignorance and use of layman terms! Also, forgive me if this is not the right forum to post my question. So I've ...
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2answers
28 views

Evaluate methods across datasets based on distance metrics

I want to evaluate $n$ methods, says $M_1,\cdots,M_n$ on $m$ datasets $D_1, \ldots, D_m$. For each method $M$, I have a score function $f(M,D) \in [0, \infty)$ for dataset $D$. A perfect method will ...
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27 views

How to derive a ranking function from observations

I have a employee dataset with the following 5 details. projects completed customer ratings number of bugs reported customer complaints profit I want to rank ...
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21 views

Seeking a general solution to confidence intervals around ranks

Often test takers are ranked based on their test scores (e.g., people taking a civil service exam) and often those test scores are rounded before being ranked, producing many ties). How might I go ...
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9 views

How to plot Ranked Linear Regression values in original data plot?

Left Image Shows original EUR/USD values and the corresponding Regression line based on the original values. Right Image Shows the ranked values and ist corresponding ranked Regression line. Values ...
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1answer
44 views

How to convert classification features into a ranking function?

I am using 3 features (x1, x2, x3) for binary classification. All my feature values are in 0 to 1 range (unit range). I obtained how important each feature was in classification as follows (i.e. <...
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1answer
20 views

Average rank with different number of ranked items

Say I have a set of my top 100 favorite movies from a list of 1000 possible choices $$ \{M_1,M_2,..., M_{100}\} $$ And have asked my friends to guess my top movies by ranking them in order of ...
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1answer
18 views

Is Using Differnet Evaluators for Head-to-Head Competing Grants a Fair Process?

We evaluate around 100 grant proposals each year using a team of 15 evaluators who all use the same criteria. 100 grant proposals is a lot for any one evaluator to do and they are experiencing ...
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1answer
33 views

Crew selection: ranking rowers by letting them race against each other

Seat selection is a common practice in competitive rowing and I would be curious about more solid statistical underpinnings: there are more rowers in a team than the 8 seats in the crew boat. So the ...
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15 views

Proxy for Mahalanobis distance when n < p? [duplicate]

I'm working on a ranking problem where I want to measure the distance between a collection of query points (as a group) and each target point in my database. Each query point is part of the set of ...
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49 views

How to derive a ranking function by analysing feature correlations

I am analysing some employee details to find the efficiency of the employees. Ideally I want some rankings to rank them based on these features. My features include; current salary projects ...
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2answers
109 views

How to interpret / metric Lasso regression coefficients

Edited Question, since it was a duplicate I used Matlab to make a lasso model for my data that has 41 predictors and 1 response variable, and perhaps I used more variables that I need too or maybe ...
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11 views

ranking unrelated items

I am trying to rank some related/unrelated items and asking for your help in the identification of a solution. Let assume that we ask a person whether he likes fruits and vegetables, and he replied ...
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13 views

How to penalize for empty fields in DataFrame?

I have to calculate the consistency of racing car drivers during the whole season. My DataFrame consists of 10 columns (10 circuit names) and for each of those columns I have the standard deviation in ...
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17 views

Statistical methods for assigning weights based on rank differences?

I have encountered methodological problem in my pursuit of my master's degree, and I hope you can help! I know exactly what I want to do, but I do not know which statistical area this is related to. I ...
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19 views

How to evaluate the performance of ranking methods of items with binary and multiple labels?

I hope that you're all fine. I have two different datasets: Dataset 1 has 10 samples: 4 labelled as 'positive' and 6 as 'negative'. Dataset 2 has 10 samples: 3 labelled as 'high', 4 labelled as '...
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1answer
22 views

convert ranking to points value

I am trying to take several 'ranking' lists add weighted values and come up with a net score to compare. Take the PGA tour players. I would like to take putting, driving and chipping and convert rank ...
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33 views

Ranking based on 2 measures

Please help me what method should I used to find the best performing schools as some schools have nearly 1000 students attended exam where as for some schools nearly 100 students attended. How can I ...
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0answers
10 views

Ranking Metric for 3 elements [Not in the information retrieval sense]

I'm working on a problem which requires me to rank 3 products based on the preferences (i.e. how much a user likes them). Let's say products are A, B, and C I have the ground truth: A > B > C i.e. ...
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29 views

Rank non-normally distributed sets of integers: long read sequencing and phase blocks

I have about 20 arrays of empirical integer values, which are each not normally distributed, with long tails. I am looking for a 'sane and sound' metric on how to sort these distributions, "with ...
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16 views

interpreting rank difference trend

I am doing some research utilizing popularity ranks in periodic data. I've been able to model the rank data using Zipf Law effectively. I am interested in understanding how the rank changes, as well. ...
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8 views

Multilevel generalized linear model (MGLM) with rank dependant variable : Specification issues

I am currently trying to estimate a multilevel generalized linear model (MGLM) on rank data using clmm function from "ordinal" R package. My dependant variable is a ranking variable repeatidly ...
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22 views

Comparing a predicted order of events to actual order of events

Sorry about my somewhat limited knowledge of statistics, it's just this is a tad too complex for my knowledge of the subject. I'm running a competition where entrants are told what events happen, and ...
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2answers
48 views

Developing a simple scoring system for client performance

I was hoping someone can point me in the right direction to develop a simple scoring system or algorithm on clients revenue performance over a period of time. I have over 400 clients with their ...
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18 views

What is the best method to rank elements with multiple attributes

This is Kumar, the fire beast monk. The left numbers are the base stats, the green numbers are the stats provided by the equip runes. Depending on your runes you can make your monster more stronger. ...
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13 views

Theoretically is it better to sample with or without replacement to approximate a rank test?

Let's say we want to do a rank test since we do not know the exact distribution. Say we have 3 different sample sizes. Which of the following tests (exact permutation, sample with replacement, sample ...
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9 views

% variation on 1/x function

My data (X) is the rank position of units sales (y). Eg. x=1 top seller, x=1000 is the 1000th top seller I know that sales number can be estimated by: units(x) = $N_0x^{(-0.5)}$ Now I would ...
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39 views

What statistical tools are available to remove bias from a dataset?

Three managers report to me. They have done appraisal of staff under them giving them a percentage. I have to sign-off those ratings but I face two major issues: The managers have a certain way of ...
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0answers
26 views

Ranking on a 3 point scale

Apologies in advance, my background is in CS rather than statistics, so I may use some terms improperly. I have a data set of a few thousand items scored on a 3 point scale, which my research ...
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33 views

Correlation of two values with opposite rank/rating

Consider the following set: ...
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1answer
35 views

Which metric to use in an ordering problem? auPR / ROC / Lift?

I need to order Users from most likely to perform a binary action X in the next n days, to ...
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6 views

Understanding percentile computation [duplicate]

I understand percentile in the context of test scores with many examples (eg. you SAT score falls in the 99th percentile), but I am not sure I understand percentile in the following context and what ...
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40 views

Statistical test on likert and ranking data

I have data in which survey participants hand to rank (Rank 1 to 3) three specific products. They also answered some 5 point Likert scale questions (from 1: “Strongly Agree” to 5:“Strongly disagree”) ...
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77 views

Weighted Empirical Cumulative Distribution Function (CFD): order values before or after weighting? [before]

My input data are some observations of a continuous variable, let's say the number of kilometers of motorbikes. I did a survey and I collected some observations. Somehow, I computed weights for all ...
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83 views

LAMBDAMART model gives low training score for queries having large number of candidate documents

I am using LAMBDAMART as the learning to rank algorithm to rank relevant documents for a given query.The model performs well for the queries having lower number(300-400) of candidate documents.However ...
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19 views

From unsupervised clustering to a weighted average?

I am in the process of writing my master's thesis, and have stumbled (as one often do..) upon an area of statistics that I am not familiar with. My setup is, that I initially have 2 features which I ...
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42 views

Sorting By User Ratings - Overlapping Wilson Confidence Intervals

I'm working on a personal project to rank user ratings on a 5 star scale and have implemented Evan Miller's often-referenced Wilson Score Interval calculation with the help of this comment. My data ...
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1answer
22 views

testing whether categorical distributions differ

i have data on how a large population (N ~ 1e8) is distributed into (many) categories (i.e. i have count of instances in each category). some categories have low ...
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7 views

Ordered aggregated choices given users preferences

I have an issue creating an ordered list by preferences. Let's say I have 3 users (u1, u2, u3) and 10 topics (t1,...,t10). Each ...
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27 views

Help analyzing data ranked on a scale

So, I thought it would be interesting to try an experiment with my family. I baked 13 different kinds cookies this year, and then told my 8 family members to rank from each cookie from 1-13. Is there ...
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how do I determine a ranking from votes by multiple members of a group

I'm having 8 members of a group choose their favorite 12 items from a list in order from 1 to 12. How do I analyze their data and determine the group items' ranking from 1 to 12 ? 1 is most favorite ...
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80 views

Analyze Ranking Data

I've some data from an experiment. Users had to use 4 different applications and had to rank these 4 applications in regards to "best overall", "easiest to use", "safest to use" using 1 for the best ...
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30 views

Why does rank correlation only depend on copula, and not on the margins, if the margins are continuous

I read that for continuous margins, then Rank correlation only depend on copula and not on the margins. However, it is not the case for the non-continuous margins. Is that because the Kendall's tau (...
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25 views

Number of unique values for rank correlation to be valid

Are there any recommendations on a minimum number of unique rank values per variable for either rank correlation coefficient or significance of this coefficient to be valid. Is it recommended to ...
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0answers
58 views

How to correlate movie taste?

I am looking for the best known way to correlate movie taste, i.e. to determine which people out of a large pool deviate the least from your own movie scores. One site with this purpose is Criticker. ...
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1answer
30 views

What model should I use?

I was having a discussion with my father about building an index that ranks cities as a function of multiple variables. For example, ranking n=20 cities based on $$$/SQFT and air quality. I would ...
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21 views

How to compare the rankings of two groups?

I'm trying to compare the rankings of two different groups (states that voted Democrat and states that voted Republican). What test should I use? Based on some googling, it seems that I should be ...