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I need to use Python to download tweets (probably in the order of the tens of thousands) from past periods. Should I use the streaming API? Do you have any reference to suggest? Thanks
Streaming API do not deal with past periods, you should use search/tweets. Be aware of fact that it returns up to 3200 tweets. Also, from the docs
Search API is not meant to be an exhaustive source of Tweets. Not all
Tweets will be indexed or made available via the search interface.
For the reference, list libraries to deal with API can be found there.
Like they said, you cannot retrieve past tweets from their streaming API. You can try to look for free datasets like these ones (but it is quite difficult that the dataset that you find fits your needs):
http://www.infochimps.com/datasets/twitter-census-developer-tools-mapping-from-twitter-user-search-
http://www.sananalytics.com/lab/twitter-sentiment/
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I want to create an iOS app that can show the bike stations and their availability(how many bikes are available in each station) from a website and I want to know how can I do it (which request?...)
There are plenty of ways you can do that.
First you should investigate if the BIKE Data Website offers a Web Service that you can utilize ? I suspect not. Then you create your Own Web service (I think it will be ideal to create REST - http/JSON) type service since that is lighter in comparison to the SOAP.
In your Service You will need to do a HTTP Request on the URL where the data is, html will be returned from the page, then look through the html and parse and get the data you need and return values to your app.
I hope this provides a pointer.
Thanks
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This may be off topic but if anyone can help or point me in the right direction.....or the correct place to put this question?
Can anyone suggest a good Automated Web Scraping program for use on a windows machine?
I would like to be able to automate the process and set it to be able to "scrape" the site every 5 mins or so and have the resulting xml exported to another website or database?
If the actual process is taking too long, those 10 seconds or more likely to being the network latency rather than actual parsing and scraping its self. If that is the case, you probably want to have them executing in parallel rather than sequentially if you have not already done so.
It would help if you had a more specific issue as there is several ways about going about this. You could have it still parsing on the phone. If that is too problematic for whatever reason, in my opinion, I would instead build a separate HTTP REST server for the phone client to have it interact with to get the data it requires.
There is many ways about going about this, and these are simply recommendations. If you want a more specific answer, you'll need a more specific question. Consider then asking a more speific programming issue if you run into one.
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EDIT:
How would you represent a graph (undirected) in ruby. Some example might help. Or is There any class or something to make it easier?
Original Question:
Similar: Tree and graph data structures in ruby
But its years old.
So my question is
Is there any gem or library for representing graphs. I need to implement a undirected graph for busstops to find a shortest distance.
I have looked at GRATR and Graphy. But they are no longer maintained and possibly outdated. (I'm not sure).
If possible something which will support on ruby 2.0.0
Or should i write my own classes for the graph repsentation and if so i think i would need an adjanceny list. How to implement that aswell.
Thanks in advance
RubyTree is a general purpose tree data structure for Ruby. We've found it to be quite useful across many contexts.
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I currently use parse.com to manage users. They have a great API, decent backend for me to manage stuff. But I'd prefer to host my own data.
The server backend, I could whip that up in php very easily. But I'm struggling to find a decent library/framework on the iOS side of things to replicate what Parse's framework does.
To do things like easy login/logout, having a user 'cached' with a saved file, easy to use methods for using blocks to send data in the background. Any clues as to where to look or what to search for to find a similar open source library that I can integrate with my own systems?
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Please tell me where I can find video tutorials of Ab-Initio ETL Data Ware Housing tool.
I surfed in google but i did not find any materials.
Thanks in Advance.
I doubt you will be able to fine these anywhere other then contacting Ab Initio directly. They do not readily share their documentation.
Abinitio have a full non-disclosure policy with their customers. You wont find much freely available on the internet. If you want training in Abinitio (and you are a customer of theirs) then I suggest you contact them directly.