Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

  7. current community

    your communities

    more stack exchange communities

    company blog
Open Data Beta

Questions tagged [big-data]

Big data is one or more datasets that together are so large or complex as to require non-traditional techniques to understand.

18 questions
info Newest Frequent Votes Active Unanswered
1
vote
0answers
23 views

Frequency of professions in cities data

I would like to know, is there any database out there, that will list, given a country and city, a list of professions followed by number of people working in that profession, to any degree of detail. ...
1
vote
0answers
16 views

Any open dataset for Geopolitical queries and answers?

I'm searching for queries/questions and answers that can be run and tested on top of the ICEWS and GDELT dataset, so that I could detect whether the query inference engine returns all the expected ...
1
vote
1answer
41 views

How can I flter data from a stream of very large text files?

I have a stream of data being delivered to my Amazon S3 bucket in the form of tab-delimited text. I would like to scan as it comes in to keep a very small subset of the rows from that match certain ...
9
votes
5answers
975 views

How can I reliably host and share large data sets?

Relevant to this answer, I discovered that datahub.io has a 100MB limit on file uploads. I was disappointed to learn this, and it tooks many server errors to realize I should read the FAQ, where I ...
3
votes
2answers
318 views

Publicly available transaction data

I need publicly available transaction data to use for my statistical analysis project. Preferably, it should relate to either: Flight data (arrival, departure, number of seats, locations, etc.) ...
7
votes
2answers
560 views

Real-time data APIs

I've recently started building a home project in Java for which I need lots of data (around 100 events per second). The problem, of course, is that I can't seem to find any publicly available APIs I ...
1
vote
0answers
23 views

Hadoop open source design and implementation

I have a big project to analyse the client’s history, records in order to predict and manage the resources more efficiently. This has to deal with millions of data sets flew from various resources. My ...
2
votes
0answers
37 views

Open data sources similar to the Workplace and Employee Survey (WES)

I've read some interesting analysis papers based on the Workplace and Employee Survey (WES), however it seems the data for this survey is not open to the public: http://www.rdc-cdr.ca/datasets/wes-...
1
vote
2answers
60 views

Big Data and machine learning to Predictive analytics

This is the first time I post a question here. I am a newbie researcher and want to write a report about Big Data influence on machine learning to improve predictive analytics. I looked through Google ...
6
votes
3answers
144 views

Data sets for predicting home value

I'm working on a project for predicting the cost of houses. I'm looking for data sets enumerating the number of schools, hospitals, parks and any other condition that may affect the price of houses (e....
5
votes
1answer
310 views

Dataset of large graphs for classifiction

I want to evaluate a graph kernel designed for large graphs (> 10^6 nodes). Hence, I'm looking for suitable graph data sets, i.e., a set of (huge) graphs and corresponding classes. Any ideas?
3
votes
1answer
108 views

Can anyone suggest a big dataset for the purpose of regression?

I am working on a regression model.I need a big dataset for this purpose. I have already worked with the famous Airlines dataset(http://stat-computing.org/dataexpo/2009/) and the million song dataset (...
7
votes
0answers
108 views

open Big Data to solve cancer epidemiology challenge

I am a doctor and I am coordinator of a project that will call for innovative projects around challenges in the field of Big Data applied to Cancer Epidemiology. The specifity of the projects is to ...
3
votes
5answers
956 views

Looking for a large data set of French data

As I am a French student in IT I have to work on a Big-Data project using French data (the country, not the language). What I'm looking for is a data set of something interesting like weather or ...
6
votes
2answers
840 views

Practice Hadoop?

Can someone guide me in how to learn and practice Hadoop? I want to work on big data in the future and I want to work further in the field. Some datasets, practice tutorials, and guidelines are what I ...
0
votes
3answers
2k views

What's the difference between Open Data and Big Data

Open Data can be Big Data, and Big Data can be Open Data -- but they are not synonymous. What is the major difference between the two?
5
votes
1answer
154 views

Have genetic algorithms been applied to Open Data?

I have become very interested in genetic algorithms or GAs (which are not necessarily related in any way to genetics or genomics; see link). This algorithmic method of searching is very well-suited to ...
17
votes
4answers
899 views

What are the practical limits of releasing open data via bit torrent?

I know that there are political issues (my place of work bans all peer-to-peer software without an explicit waiver), but how well does bit torrent scale for distributing large data collections where ...