Questions tagged [data-sets]

Questions asking for real-life or benchmarking data sets.

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How to feed videos to a neural network

I have been coding and testing Neural Networks for a while but as of now I have only used IMAGE datasets. (i.e. I have M training images and N testing images). Some datasets are video datasets. The ...
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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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1answer
31 views
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28 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 ...
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48 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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1answer
51 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 ...
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1answer
28 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.
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63 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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1answer
111 views

Entropy and Information Gain for multi attributes

Is there any way that for specific dataset I can measure entropy and information gain for two or more attributes together? Let's say we have the following dataset: $\begin{array}{cccccc|c} x1 & ...
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2answers
67 views

create large data sets for machine learning

I am trying to research a new topic using machine learning. The problem is, I have a very small dataset, consisting of 5 months of data. I have been told that my dataset is too small. I want to know ...
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0answers
409 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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1answer
79 views

Classes of outer totalistic cellular automata

I'm wondering if anyone knows of any place where the Wolfram classifications of many outer totalistic cellular automata have been catalogued. The classes of a few examples are given in A New Kind of ...
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35 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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33 views

which paper to take that would best fit to becoming a data scientist? [closed]

My name is Webber from Auckland, New Zealand. I am currently in my second year studying the bachelor of computer and information science. I have chosen to do a double major in computational ...
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1answer
186 views

Method for finding correlation between data sets

Let's say that I have $N$ data sets where I have data points at some fixed frequency, such as "daily". What would be a good method for finding correlation between any of the data sets, or choosing a ...
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1answer
486 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 ...
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1answer
75 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 ...
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1answer
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 ...
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1answer
831 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 ...
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0answers
108 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 ...
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86 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
79 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 ...
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2answers
268 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 ...
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1answer
44 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 ...
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0answers
784 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 ...
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1answer
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 ...
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2answers
178 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 ...
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2answers
3k views

Where to get graphs to test my search algorithms against?

I am implementing a set of path finding algorithms such as Dijkstra's, Depth First, etc. At first I used a couple of self made graphs, but now I'd like to take the challenge a bit further and thus I'...
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1answer
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 ...
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1answer
678 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: ...
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2answers
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) ...
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1answer
268 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 ...
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5answers
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 ...
3
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1answer
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 ...
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1answer
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,...
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1answer
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....
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1answer
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 ...
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1answer
451 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 ...
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0answers
43 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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0answers
56 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, ...
3
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1answer
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. ...
2
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1answer
104 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....
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4answers
3k views

CPU frequency per year

I know that since ~2004, Moore's law stopped working for CPU clock speed. I'm looking for a graph showing this, but am unable to find it: most charts out there show the transistor count or the ...