Categories
Technology Thoughts where 2.0

Semantics and the GeoWeb

I went along to a very interesting and well delivered presentation in front of it must be said a rather disappointing audience at the British Computer Society in London yesterday evening. “Make Mashups Correct, Complete, Relevant and Revisited” was a presentation originally given by Jonathan Lowe of Giswebsite LLP at Where 2.0, and as Jonathan is a great presenter I was really looking forward to it.

The presentation actually focused on the currently rather specialised area of semantic spatial databases and their potential in powering the mash-ups of the future. He high-lighted some of the darlings of the semantic database industry freebase and True Knowledge, who have developed technology that really demonstrates well the benefits of semantic databases.

The benefits come from having a much more structured data modelling approach than we have become used to on the web, the demo of freebase here is a great example of this, but such a strongly typed approach is also the major weakness of semantic databases at the moment.
Who defines and categorises data into these types and who builds the relationships between database elements. The wiki approach that freebase uses is a great start but ultimately will it scale ?

Semantic databases will become the future way we interact with information online only when their development and maintenance can become automated, in the same way that the creation and analysis of the web indexes behind web search is automated.

In the meantime that make some great demos

Written and submitted from home, using my home 802.11 network.

Categories
Thoughts

Palin for President ?

A heartbeat away? no not that Palin I mean this one.

From http://www.michaelpalinforpresident.com/

Written and submitted from the Google Office, London.

Categories
Thoughts

Anybody else remember this ?

Although my first computer was the famous and popular Sinclair Spectrum, the first computer I actually used was this..

30494095-062C-410F-8CA8-63F99A141E7C.jpg

The Research Machines 380Z, was designed by RM for the schools market, it was never a good looking machine, or anywhere near as successful as the BBC Micro or Apple II, but I will always have a soft spot for it.

This example is from the UK National Museum of Computing based at Bletchley Park, and as highlighted by silicon.com, it is in typical British fashion once again running out of money.

The British establishment has never really appreciated technology or our heritage when it comes to the development of computing, please if you can visit the site and make a donation.

Written and submitted from home, using my home 802.11 network.

Categories
cartography Google Maps Thoughts

Cartography is dead, long live the map makers

Seems like only last year, ah yes it was last year, that the bored press hits upon it annual “shock horror – nobody can read maps” story. This year there is a slightly different spin, due to the input of the British Cartographic Society (BCS) complaining that nobody is creating maps like they used to.. 

Modern online maps and satnavs don’t display as much detail, it is argued by the BCS, missing out features like churches, village greens , etc., of course this is rubbish! Most online maps contain more detail than any traditionally designed map could ever do, but that detail is hidden behind an interactive interface, features are displayed dependent upon the level of zoom (scale) or the purpose of the map itself.

Cartography the craft of compiling maps by selecting the information to be displayed and how it is to be represented in print, has a long history, but the traditional skill is becoming less relevant as the final media used to communicate is rarely paper, hence this desperate cry for attention. 

That’s not to say the principals of design are not important in the creation of “maps” for screen display, indeed one could argue for the need of a “new” cartography which adopts rather than ignores the capabilities of screen based maps to portray information dynamically.

The criticism also fails to take into account the biggest impact of the online revolution as far a mapping is concerned, now anyone with a web browser can be the publisher of maps, you no longer need to be a government institution or a large commercial company to produce a map and publish it to a global audience, Mash-ups anyone ?

Will the people mapping the impact of Hurricane Gustav over the next few days, care that perhaps they don’t have the academic qualifications and experience to call themselves cartographers or will they just get on and share useful information more quickly that could every have been done before ?

As the courses offering to teach cartography close down, there is no dedicated course in cartography taught at any UK university anymore for example, the craft/science of cartography has a choice adapt to a new world or face the same fate as  Coopers, Millrights, Locomotive firemen, and Chimney-sweeps!

“Cor blimey Mary Poppins, they don’t need us cartographers to make their maps anymore and no mistake”

If you think this seems farfetched, there is reason behind my Disney reference..

In the early 1990’s Disney Animation Studios was having great success with movies such as the Lion King, Aladdin and Beauty and the Beast. Indeed they opened up an animation studio as part of the theme park in Florida, so that visitors could see animators working on the next film in production. I visiting this studio two weeks ago on vacation, it was shut down in 2004, when Disney stopped it’s traditional animation efforts, as it began concentrating on its own computer generated efforts and the outputs of the young upstarts at Pixar.

I’m sure at one point the animators of Disney looked at the crude early output of pixar and had similar comments to those of the BCS president, lets hope she and the cartographers she represents are able to adapt to the new technology, as the change is coming and the pixar of the cartographic world is an army of thousands of map-makers contributing to the most detailed global map every produced.. The GeoWeb.

Written and submitted from the BA T5 Lounge at Heathrow Airport, using it’s free 802.11 network.

Categories
Google Maps Ordnance Survey Thoughts

Where is the Path updated.

From the Mapperz blog, news that Bill Chadwick has added the ability to use the Google Earth plugin to his excellent “Where is the Path” application. For a long time this has been in my mind the best OS OpenSpace API site, allowing users to visualise routes using both the excellent OS maps and Google Imagery amongst many other data sets, and then export routes directly to their GPS via the GPX format.

Where is the path

This is just the type of innovative value add that comes from allowing developers access to raw data and server infrastructures, users now have access to a capability that is not present in the OS Get-A-Map service for example. It would be great to see further development of OpenSpace and eventually more favourable licensing terms to see more OS data used in this way, who knows even on Google Maps one day 🙂

Written and submitted from home, using my home 802.11 network.

 

Categories
cartography Thoughts

Cartography and the power of the image

Lisa and I sat down last night and watched the excellent first epsiode of a new BBC series Britain for Above, which uses beautiful aerial photography to illustrate what can best be described as the “Geography of Britain”. This looked fantastic in HD (Virgin media managed to key the one HD channel they supply working for a whole hour !) and I’m sure the series and its website, books and DVD it will be a great success.

This got me thinking as to the widespread appeal of aerial photography, and the contrast with popular perception of cartography. This is driven by the fact that I have two talks to give at the Royal Geographical Society and Society of Cartographers conference in September, and am thinking about the future of cartography.

It’s difficult to imagine Andrew Marr using topographic maps to explain.. the british transport network, or the structure of the city of London on prime time TV, but why is this? Of course the same spatial patterns are represented on a cartographic map, indeed there is much more information of an OS map than an aerial photo, so why are maps not more widely used by the mass media?

In the UK of course there are specific issues to do with licensing mapping, but I think there are two key issues..

Firstly topographic maps need to be interpreted requiring a knowledge of cartographic design standards; a river is a blue line, a major road is a red or green line (depending upon scale) and a motorway is a blue line, (but not the same blue as a river obviously).

maps.png
Image produced from the Ordnance Survey Get-a-map service. Image reproduced with kind permission of Ordnance Survey and Ordnance Survey of Northern Ireland.

Looking at aerial photography either vertical or oblique it is easy to identify natural and man made features based upon our direct experience, the amount of interpretation needed to recognise how a motorway might look from above compared to ground level is relatively small.

image.jpg

Secondly imagery as presented in last nights programme is dynamic, we were rarely presented with still images, instead we saw buses moving through London streets, trains approaching Waterloo station and ships sailing in the English Channel.

In itself, such dynamic content aids in the interpretation of the information presented, but this can be further enhanced as was done so last night by including animations which illustrated changes over a longer period of time.. the GPS traces of flights or taxi’s very well illustrated the economic structure of the UK.

So for cartography this raises an interesting challenge.. how can the art/science of map making really exploit the nature of soon to be dominant medium of electronic communications, rather than the static medium of paper and will the map of the future actually be an image ?

Written and submitted from the Google Office, London.

Categories
Data Policy

The economic half life Geodata

At the ESRI UC Executive submit this weekend, Dirk Kempthorne the US Secretary of the Interior announced that the 35 year old archive of Landsat Imagery held by the USGS would be made available for free public access via the web. Of course how federal data is made available in the US has always been something we Europeans looked upon with some envy despite it’s sometimes poor quality, but it’s important to remember that Remotely Sensed Imagery has always been slightly different, and a less permissive licensing regime has existed around what was seen as a more commercial data set.

So this is great news, but it illustrates an interesting question ? What is the economic half life of geodata, over what period of time does the value of geodata decay ? The Landsat archive is in many ways different to “mapping” data in that the empirical value of data in the form of raw pixel values is still of considerable interest to the scientific community, but from the perspective of visual interpretation how much less valuable is a view of Las Vegas from the late 1980’s compared to one of today.

From a mass-market perspective there is a clear difference in usefulness, for providing a synoptic view of the world today to provide context for other types of information clearly geodata needs to be as current as possible, 10 year old imagery particularly for urban areas is much less useful. But financially how much less valuable.

For most types of commercial geodata this value decay curve is impossible to establish, because of the combination of software like licenses and copyright, so for example Ordnance Survey data in the UK has the same commercial value when it is one day old, one year old and 49 years old, but it then drops to zero as it drops out of copyright.

Alongside the broad argument around making public sector information more open, perhaps it would also be useful to think about the data that will always be commercial, but has a value which decays over time.

Written and submitted from the Google Office, London.

Categories
LINKS Thoughts

Links for 30 July 2008

Placespotting

A interesting idea, a simple game that works like a visual crossword puzzle,  uses the Google Maps infrastructure to create a zoomed in image of an area which you must identify from a global maps using the clue provided. 

So for example, this place is..

  • In the heart of Europa, but not EU
  • This bridge is next to a famous wooden bridge
  • The wooden bridge burnt down in 1993
ESRI UC coverage..
I miss not attending the ESRI UC in Sani Diego, I have many friends who will be attending and have happy memories of past conferences, Google will be there however, so if you are going to the conference pop by and say hi to the googlers enjoying San Diego. For those watching from a distance, join me in following the conference via the Very Spatial Blog feed and Twitter feed

Written and submitted from Madrid Airport, using its kubi 802.11 network.

Categories
Google Maps

If Hitchcock made viral videos about Google Maps..

I’ve just spent the last couple of days the Google Geo Marketing people, and was introduced to and instantly became a fan of a series of videos produced by the vacationeers, a LA based group of video artists.

These were developed independently of Google and are just brilliant..

This is my favourite (please note Daily Mail journalists.. this is a work of fiction), but visit their site to watch them all !


 

Written and submitted from Madrid Airport, using its kubi 802.11 network.

Categories
Apple iphone

Apple censors iPhone forum

Seems more of the ways of the mobile industry is rubbing off on the once shinny Apple brand.

This is a link to a disscussion on one of the Apple forums discussing availbailty of the white iPhone as an upgrade for O2 users in the UK. Only it has been removed…

Thanks to the wonders of the Google Index cache however we can view the original content, and is does not make happy reading for Apple or O2, however the fact that these critical comments have been removed shows poor judgement, and puts Apple in a very poor light.

The final comment by Neil Holmes before the discussion was removed is damming..

So much for Think Different !

Written and submitted from home, using my home 802.11 network.