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I need to create two dropdowns for an app. One shows all countries the the world, the other is filled with all cities of a selected country in the first dropdown. Is there any web service or database that provides such information?
Given that you found by yourself the answer to your question, I'll give the answer for what you ask in the comment:
Maybe Boxer Text Editor will do the trick:
Large file capacity
edit files up to 2 GB in size
no theoretical limit on the number of open files
line lengths to 32K characters
total editing capacity is limited only by the operating system's virtual
memory capabilities
Desmond
You can get a list of all the countries and all cities per country from a free database from MaxMind.com that is only 33Mb.
http://www.maxmind.com/app/worldcities
Andrew
Part of the "OpenGeoCode.Org" Team
Geonames has several webservices which basically give you programmatic access to that 800m db.
I used the one at http://www.zuzemo.com
It has just about everything you need, countries, regions and cities
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Today many companies are providing analytics based on social media data. In order to do that every company has to get the data from different social networks like twitter, facebook, etc. It would be nice if we could go to one single data provider that would provide us with data of all social networking sites. That way every company doesn't have to build their own data infrastructure and can concentrate on analytics only and not on data fetching. http://www.gnip.com is one such data provider. Does anyone know of any more such data providers?
I can actually think of quite a few data providers like that. Gnip is obviously the big kid in the room...but a few others are:
http://www.datasift.com
http://www.collectiveintellect.com
http://www.spinn3r.com/ (Not as much of an all-encompassing aggregator, but should still work for the purposes you describe)
I'm sure there are others out there, but Gnip & these three (Datasift & Gnip in particular) seem like the biggest data providers of this sort.
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I am relatively new in the field of Data Mining. I am currently doing Some Data preprocessing algorithms such as PCA and min max Normalization. Our professor said we could download the data sets available over the web. But at initial level I want a simple data set with relatively small number of attributes for my algorithm, and would then switch to various complex data sets.
Can anyone provide a link for simple data sets which you must have used in your data mining algorithms? e.g. something pertaining to marks of students, age, height etc or employee data of a company. Any assistance would be greatly appreciated.
Infochimps.com
Researchpipeline.com
More and many more links here: Some Datasets Available on the Web
I used stackoverflow's data for my data mining class.
I am not sure this is going to help or not, but I gathered some websites that provided useful Data when I was working with recommender systems.
Here it is
http://girlincomputerscience.blogspot.com.br/2010/12/datasets.html
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Two parts to this question:
Are there any existing file formats or software libraries that can be used for scoring, archiving and/or analysing cricket games?
Are there any examples of database schemas suitable for recording all of the details of a cricket game?
Cricksheet offers ball-by-ball match data for the recent year in yaml format. The specification of their yaml format can be found here - http://cricsheet.org/format/ .
But, I really don't understand this 3 day thing everyone keeps talking about. Test matches last 5 days, One-day matches last, well, one day and T20 matches last close to 4 hours.
Only exhibition first-class matches or practice matches are played for 3 days, and I am wondering why anyone is talking about it here if that is what they are indeed talking about.
As you will know cricket is a complex game and commentator needs lots of stats to rehash over 3 days or more.
So short of someone sharing proprietary info, you probably better off designing an XML schema(may be) to store the data.
Good luck
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I am looking for recommendations for a screenscraper I need to extract "Contact Us" information from certain web sites.
Any ideas where I can get a good (pref free) screenscarper?
Write your own -- it isn't hard. if you aren't familiar with programming or have a choice for programming languages: use Python the library support for doing scraping great.
As for how to attack the problem their are two popular techniques: use regular expressions, they work best for ad-hoc screen scraping. If your target web-sites are well structured -- read: not ad-hoc -- then use a framework that allows you to work with the DOM.
Navigation and Extraction
These are the two phases of writing a spider. Your spider needs to navigate a website to visit different pages, and it needs to extract information of interest. Both these phases can be driven by either the DOM or RE's
p.s., Since your name indicates .NET -- I should mention that I have written scrapers in C-Sharp -- it's a doddle.
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This is more of a resource question rather than technical one.
I am building a website for a client who needs to categorize photos (motorcycles) and I am looking for a database of models/years/production year.
If anyone knows where I can find such database please let me know.
Here is a database I put together for a Motorcycle website I was working on.
Motorcycle & Scooter Database, Years 1970-2010, 16,000+ records
Here is a link that I was able to find for you. From my experience, it's really hard to find anything free that deals with vehicle database references because of the ever changing makes and models.
DataOneSoftware.com
If the above website doesn't work out for you, then another possiblity would be to see if you can find some of the old VIN lookup books out there and see if there is someway to get a download link or a CD copy of their information.
Good luck on your project.
You can automate an image search (through google image for example) for every make and model you got in the database. This method is error prone and the images have to be checked also manually to see that they are correct. But its an idea.
Also note copyright material and other things like that.
I have found another make-model-year database from here: http://allmotodatabase.com
Not perfect, but very good if you need moto make-model-year DB for some project, plus it contains some additional info (not available for all models though)
This came up when I was searching for one, I decided to scrape bikez.com, it's not complete (atm) but the scraper can be found https://github.com/ibash/bikez_scraper