Questions tagged [data-sets]

Questions asking for real-life or benchmarking data sets.

14 questions with no upvoted or accepted answers
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Describe data structure using equations

Good afternoon. At work I'm currently developing a system which takes user input (well structured) and then stores it in memory to do some processing. The input is basically a dataset formed by ...
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58 views

Algorithm for query comparison

Lets say I have a global dataset and I run queries over those data set. For example my dataset would be #id, #Name, #Employee, #Birthdate, #number_of_children 1, Nick, Nasa, 1982, 1 2, Jack, Exon, ...
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12 views

Raters and subsampling

In order to select questions for an online contest, we get contributors to submit potential questions that they write themselves. Then, out of, say 100 submitted questions, we have to rate them and ...
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0answers
153 views

What is the most efficient algorithm for creating a list of unique values from a list of pairs of value?

Background I have a list of 50 million $A-A_i$ pairs, where $i>1$, and $A$ and $A_i$ are some text. I need to extract the $A$ values from the list, so I get a new list of unique $A$ values.: $$ \...
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0answers
561 views

Algorithms for tabulating/counting/frequency counting?

It is common in data science to receive two equal length vectors (array of dimension 1), say Categories and Weights. We aim to find all unique values of Categories and sum up the corresponding ...
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42 views

Algorithm that shifts points in the x-y plane to maximize distance but keep one axis constant

Suppose I am running an experiment with some subjects, and I obtain some numerical data from them. The subjects are divided into 2 experimental groups. Rather than display the means of each group in a ...
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114 views

Can file entropy be predictable?

I am working on some lossless compression topic and looking on any resources or prior studies on lossless file entropy predictability. Assuming we know type of the file (we can tell its belongs to ...
1
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0answers
44 views

Algorithm for query comparison

Lets say I have a global dataset and I run queries over those data set. For example my dataset would be #id, #Name, #Employee, #Birthdate, #number_of_children 1, Nick, Nasa, 1982, 1 2, Jack, Exon, ...
0
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0answers
24 views

Database that contains timespans of cyber attacks in the web

for a project I need to evaluate a model, that tries to predict wether a certain cyber-attack (i.e. connection to a low level honeypot) is just a random access, a new attack-wave or an already known ...
0
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1answer
34 views

What is a range of an attribute in data mining?

In my data mining course, we are working with a data set. I have to identity the ranges of each attribute. I am given the set of data for all 150 points and i am given the visualization (charts) of ...
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1answer
37 views

Aggregate text data of some particular column

I have a dataset as follows ...
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0answers
70 views

Derivative and integral of experimental data

I have same experimental data with same noise: I have to calculate the derivative and the integral of the function that fit the experimental data. I try with all the function in this page but the ...
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0answers
89 views

Parallel Machine Scheduling test data

I am writing optimization program for unrelated parallel machine scheduling problem on CUDA. Now, the only thing I am missing are some test cases. Does anyone know where I can find such data? I have ...
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0answers
15 views

Dataset Collection

I have to collect Aerial Images (from drones flying at a height of nearly 30m to 40m) of People Gathering in a Group of 3-4. I have manually checked some images on the internet and looked for some ...