Questions tagged [data-sets]

Questions asking for real-life or benchmarking data sets.

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27 views

Help on creating a rather complex SQL query

I have a rather simple database structure with the following two tables (create table): ...
9 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 ...
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 ...
31 views

Aggregate text data of some particular column

I have a dataset as follows ...
34 views

point clouds in machine learning

What is the purpose of point clouds in machine learning? Consider the following suggestion: Say I have a table (per year) of records (such as days) each of which is made of n real numbers such as ...
76 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.:  \...
29 views

Abstract Data Types and their Implementation [closed]

I wanted to know if there is good resource to learn about the ADTs like set ADT, list, array, boolean etc and their implementation.
80 views

Describe briefly how analogue data differs from digital data.

I was wondering if you could help me to understand the difference between analogue and digital data. I looked it up online but couldn't find a proper answer. If for any reason this is the wrong site ...
66 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 ...
168 views

499 views

Where I can I find Pre Trained CNN Datasets for Facial Emotion Recognition?

I am working on a project that involves recognising emotion from images. There are two parts in the project: One where I will generate features from images using API's and then classify the emotion ...
76 views

What is the metadata in microblogging platform?

I'm reading papers regarding microblog credibility perception of non-text cues. Tweeting is believing? Understanding microblog credibility perceptions by Morris et al., 2012 Microblog Credibility ...
893 views

About the MNIST data-set

Is this known as a fact or from some analysis that the MNIST data-set is almost as if its sampled from some low (~10?) dimensional manifold? Is there a locally linear embedding to a low-dimensional ...
109 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 ...
87 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 ...
85 views

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 ...
283 views

Interesting small SAT problems?

I'm noodling around with making a hardware SAT solver on an FPGA, and I'm wondering if there are any interesting SAT problems smaller than, say, 50 variables both to stay within the limits of the FPGA ...
46 views

How to parse data in a text file? [closed]

I had a question about altering a text file. I have data in the following format. 1 a,b,c 2 d,e 3 a, l, m,n Note that some of them have spaces after the coma ...
21 views

benchmark data set for Metareasoning problem

I am developing algorithm for solving following problem: Given a set of items with unknown feature(s) (but know distribution of feature(s)). Algorithm must choose what items to measure(every measure ...
40 views

Semantic information collections on the web. (Semantic Wikipedia)

There are lots of technologies supporting semantic information markup even as wiki software. I am wondering if there is any kind of broad information collection project like Wikipedia which features ...
183 views

Relative Importance in Graph Theory [closed]

I am working on an algorithm that ranks a set of nodes in a graph with respect to how relative this node is to other predefined nodes (I call them query nodes). The way how the algorithm works is ...
684 views

Automatically generate meaningful queries for a data table

My field of research is not Database or AI. But I have some problems to solve, and would like to know which branch this kind of problems belong to, and what are the results. The main question is: ...
2k views

How to filter a very, very large file

I have a very large unsorted file, 1000GB, of ID pairs ID:ABC123 ID:ABC124 ID:ABC123 ID:ABC124 ID:ABC123 ID:ABA122 ID:ABC124 ID:ABC123 ID:ABC124 ID:ABC126 I would like to filter the file for 1) ...
272 views

What are good counter-examples when training an apple classifier? [closed]

I am doing a project in order to recognize an apple. (I am using Emgucv with Visual Studio 2010 C#, if that's relevant). My project is a classification (is or is not an apple). I have 2000 images of ...
4k views

What is the best way to index lookups on a 2D array of integers that is boundless in x and y?

Lets say you have a data model that consists of a 2D grid of integer points. This grid is sparsely populated and boundless in x and y (up to the max of a 32-bit integer). What is the best way to ...
102 views

Environment requirement in training image dataset for classifier

I have a question about preparing the dataset of positive samples for a cascaded classifier that will be used for object detection. As positive samples, I have been given 3 sets of images: a set of ...
40 views

Access to publicly available project with all the artefacts (files) created during the development [closed]

Does anyone know where I could get an access to a project that contains all the artefacts (documents) that were created during the development? So I would like to get all the word, pdf, power designer,...
836 views

Looking for dynamic network data sets [closed]

There are a number of collections of network (or graph) data sets freely available on the web, e.g. http://snap.stanford.edu/data/index.html http://www.cc.gatech.edu/dimacs10/downloads.shtml I am ...
80 views

Are there repositories of automatically generated (spam) webpages?

I'm interested to see if I can use machine learning/network analysis methods to automatically detect automatically generated (spam) webpages. I'm particularly interested in webpages that look ...
2k views

How is sound input and output data converted to use with machine learning networks?

Suppose one has a couple of .wav files with English spoken words, multiple ones for each word, and for each such set there exists a transcription of their right output, the pronunciation as ascii text....
483 views

Maximum variance and useful information of dataset

I am reading through PCA and it says that the maximum variance principal component has most of the information. Can we apply that to any data set? If a data set has n attributes and most of the ...
57 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, ...
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, ...
54 views

Pool of photos for term extraction

I need a pool of photos (if possible with description) for my project. I mainly have to perform term extraction for semantic searching. Is there something available out there that is made available ...
132 views

Seeking “gold standard” to evaluate accuracy of network clustering algorithm

I'm currently looking at network clustering algorithms (we're currently looking at both directed and undirected, unweighted networks). The algorithms we've tried produce visually nice clusters. ...
108 views

Where can I find the data of the computer experiments in the book “Neural Networks and Learning Machines”?

The book "Neural Networks and Learning Machines" by Simon Haykin has many computer experiments to which many exercises are related. But there seems to be no data for these experiments available online....