I’ve been playing around with yet another Flickr Commons then and now project, this time using the images of New York from 1935-1938 from the New York Public Library. The process for this has been a little bit different to the previous then and now demonstrations. The images that have been posted don’t have any geo-location metadata (a latitude or longitude) so they can’t be placed directly on a map in the same manner as other Commons photographs. What they do have instead, is very good street addresses in their titles.
The google maps API has geocoding API call that translates a human readable address into a latitude and longitude. So if we pass the title of a photo into the API – let’s say “Willow Street, No. 113, Brooklyn”, it returns the latitude and longitude of “40.6978614, -73.9955804″.
For the demonstration I’m using a KML file. Generating this file is now a 2 step process, import the data from Flickr using their API, pass the title of the photo into the Google Maps API to get the latitude and longitude and merge both results into a KML file.
Of course some of the titles provide ambiguous addresses or don’t provide enough information and don’t automatically return a result. for some of the images I’ve manually tweaked the data that I’ve passed into the geocoding API to obtain a result. The results are by no means perfect, but it’s a pretty good demonstration of what can be achieved from very little data and automating everything.
On November 27 the National Library of New Zealand became the sixteenth institution to join The Commons. In what was perfect timing, within days Google launched their streetview service for New Zealand. Of course I’ve modified my then and now mashup to include the images on Flickr from the National Library of New Zealand. They’ve been busy geotagging their images and it’s all starting to come together and providing some interesting looks into how New Zealand has changed over time. Start exploring New Zealand then and now.
Following on from my previous then and now Flickr commons meets streetview demonstration, I started to think of how could I bring that experience to a user based upon their current location – take out the streetview and replace it with a real life view. Can you provide an immersive experience for a user, giving them only the historical items from a cultural institutions collection, that are relevant to their current location? Imagine being in a location with your laptop or mobile phone, and being able to see exactly what the location you are standing in looked like in the past.
For example – thanks to free wifi from the Apple Store in Sydney on George Street, I built a web application to show me my current location. It’s pretty accurate, but not perfect. In this case it’s showing my location as about 100m from where I actually am (on the corner of King St and George St). I can then display all the images from Flickr Commons that relate to that area. As you can see there are a variety of historic images available and I’ve selected an image showing Martin Place.
From where I am standing on George Street I can see the real life buildings that are shown in the historic photo.
If I then walk down George Street 100 metres I can be in the same environment where the photos were taken and can compare the historic image of my current location on my laptop to the environment I am standing in.
So how does this work?
Up until a few months ago, the only option available was to to guess the location of the user based upon their IP address. This might have been able to give the application the city that a user was in, but it was unlikely to provide it with a more accurate location than that. Recently two plugins based around the W3C Geolocation specification have been developed - Geode from Mozilla labs for Firefox 3 and geolocation functions have been added to Google Gears which is available for a variety of browsers. By using these plugins I can determine a reasonably accurate latitude and longitude for a users location and if a user doesn’t have either of these plugins installed, or for privacy reasons decides not to allow these to broadcast their locations, I can fall back to using the much less accurate IP address lookup.
Once I have a users location, I can use the Flickr API to return all the images that are within a certain radius of the user. If I also use Google Maps as the mapping application, I can also add wikipedia articles from the users current location into the mix.
Try it out
I’ve developed two prototypes, the first one returns historical images from Flickr Commons. Given that there aren’t a vast number of photos in the Commons yet, and even fewer have geolocation information added, unless you are around the Sydney CBD area, your mileage may vary.
The second prototype returns images from Flickr that have a creative commons license. As there are a lot more images available in this category, the chances of getting a result is much greater. For either of these to work you’ll need to download one of the plugins.
These are notes from a talk by Simon Porter from the University of Melbourne at the Libraries Australia Forum 2008.
All you needed to know about a University was a book. Number of pages increase over time from 16 pages in 1870 to 227 pages in 2004. Although the scope remains the same, the size increases. Now the Universty calendar is a brand for an online resource. From the webpage you get sent to a faculty home page. The information isn’t collated in the way it used to be and it is often stored in many places rather than a central repository.
Important contextual framework for history. Structure a history. Because we are now in the online space, we can do different things with it. We can collect stories not from just one individual, but from many individuals and relate them together.
In 2003 the University was disparate systems, with the information replicated all over the place. By 2005 much of the information started to be in one place. By 2006, they could take this information that had been prvate and make it public, giving each academic their own web page showing their information, their publications, their awards and honours.
With the list of publications on their pages they can construct OpenURLs to try and source the publications online. They can then also link to other academics that have worked on the same projects or grants. This is required as part of Government reporting.
Cornell Universities VIVO project. They don’t have the same reporting requirements that we have in Australia, but they’ve build it (using RDF). Expertise island in Ireland is a similar project.
The data has gone from being facts to being identities, not just representing the information that is there, but making an authority. They have responsibilities to present the correct information now that the information is public rather than private.
What about privacy? At the University of Melbourne it was expected that part of your duty was to the public. There are some issues, they have the option of hiding their contact details or making them available.
