Alan’s blog

December 13, 2007

Usabilty and Web2.0

Filed under: academic,HCI and usability,web development — alan @ 11:33 am

Nad did a brilliant guest lecture for our undergraduate HCI class at Lancaster on Monday. His slides and blog about the lecture are at Virtual Chaos. He touched on issues of democracy vs. authority of information, dynamic content vs. accessibility and of course increasing issues of privacy on social networking sites. He also had awesome slides to using loads of Flickr photos under creative commons … community content in action not just words! Of course also touched on Web3.0 and future convergence between emergent community phenomena and structured Semantic Web technologies.

November 11, 2007

digging ourselves back from the Semantic Web mire

Filed under: academic,web development — alan @ 10:10 am

Discussions on the Talis Platform Advisory Group prompted me to look at some of the APIs of new Semantic-Web-like services such as Freebase1.

Freebase is interesting as its underlying representation is graph/relationship based like RDF, but its Metaweb Query Language (MQL) uses JSON which is a more programming-like whole and parts representation with arrays and slots. Facebook’s new Data Store API also has objects and associations, but does not use RDF or other obvious web technologies.

So the question is – if the closest things to Semantic Web apps on the internet don’t use SemWeb techology like RDF, SPARQL etc. … are these SemWeb techologies fit for purpose or indeed useful at all?

I think the answer is that (i) partly they are not fit for purpose – caught in a backwater by their history, but (ii) that is like all things and they are what we have got, and (iii) we can use some of the tools of computing to make them work …

(more…)


  1. listen to Talis’ pod cast interview with Jamie Taylor Freebase’s ‘Minister of Information’ (sic). [back]

August 30, 2007

Google’s Vint Cerf avoiding responsibility

Filed under: academic,political,web development — alan @ 6:56 am

Yesterday morning I was on my way into Lancaster and listening to the Today programme. Google’s ‘internet evangelist’ Vint Cerf was being interviewed by John Humphrys and the topic was ‘should the internet be regulated like other media’.1

Not surprisingly Vint Cerf thought not, but I was surprised how well he avoided actually saying so. John Humphrys is experienced and politicians fear him in these early morning interviews, but to be honest he was completely outclassed by Vint Cerf who sidestepped, avoided and generally never addressed the question.

Web 2.0 was the heart of the issue. With end-user content now dominating the internet do service providers such as YouTube (of course owned by Google) have any responsibility for the kinds of material hosted?

This was in the context of videos of ‘happy slappers’ and other violent attacks being posted, but more generally that whereas TV in many countries is limited in the kinds of material it can show, particularly early in the evening when children are more likely to be watching, is limited by a mixture of voluntary and satutory codes. Why not the internet?

Vint Cerf repeatedly re-iterated the same message “Google is law abiding” if content is not legal it is removed. Implicitly the message was “if it is not illegal it is OK”, but as I said he carefully avoided saying so.

The closest point to actually addressing the question was when John Humphrys suggested that technologies could be misused like research for atomic power being used for nuclear weapons (strange I thought it went the other way round?). Vent Cerf’s response was, the standard neutrality of technology stance, that the makers of roads were not responsible for car deaths, strip development … the same argument used by arms dealers, manufacturers of gas guzzling cars, and scientists in every repressive regime in recent history.

According to Cerf if you are a worried parent you need to buy good filtering software; the solution is at the edges of the net … and of course does not involve the likes of Google … who it appears from the context is at the centre?
Now there are very good arguments against regulation both ethical (freedom of expression) and practical (volume of material, international access). The disappointing, and worrying, aspect of this interview was that Google’s key public face was unwilling or unable to constructively enter the debate at all.


  1. “The 0810 Interview: Godfather of the Internet”, BBC4, Today Programme, Wednesday, 29th August 2007 [back]

August 20, 2007

online image manipulation

Filed under: web development — alan @ 7:46 am

I was looking around for online image manipulation programs. I found a few and all seemed quite basic (no real turbocharged web2.0 one), but iaza caught my eye … basic but lots of pictures of the site developer’s Tibetan spaniel Niro!
IAZA - image manipulation and cute doggies!

The other one that seemed interesting was wiredness which is quite basic in functionality, but clearly aiming to be zappy in its interface … and has an API so you can send images to it from other sites for manipulation (what I was looking for).

May 25, 2007

spell with flickr

Filed under: web development — alan @ 7:36 am

I just found a wonderful service spell with flickr that makes images like:

T h3 I S

It is built from a pool of letters on flickr which have been collected independently (there are also pools for digits and punctuation), a lovely example of Web2.0 in action!

I’ve added it to Snip!t, so now if you snip a single word ‘spell with flickr’ gets suggested as an action.

May 13, 2007

tagging … I am not alone … or am I?

Filed under: academic,web development — alan @ 7:50 pm

I’ve noticed that I reuse very few tags … and thought I was just a poor tag-user. However, I read the other day a reference to a paper at the CSCW confernce last year; it reported that the average number of re-uses of a tag was just 1.311 . I thought this meant that most tags are never reused … I am not alone :-)

Having downloaded and read the paper it turns out that this is the average number of users who use a tag – that is most tags are used by only one person, in fact individuals reuse their own tags a lot more … so I am no-good tagger after all :-(

Incidentally, I use ultimate tag warrior plugin for wordpress and it seems OK. Only drawback is that if you want tags displayed with your post, they really get inserted into the post itself. This is not a problem for tags at the end, but would mess up an RSS feed if you like your tags above the post. I guess this is because wordpress does not have a handle for plugins to add things to display loops, so the only way to ensure the tags are displayed are to make them part of the post.

Also Nad sent me a link to a neat tag visualisation by Moritz Stefaner.


  1. Sen, S., Lam, S. K., Rashid, A., Cosley, D., Frankowski, D., Osterhouse, J., Harper, F. M., and Riedl, J. 2006. tagging, communities, vocabulary, evolution. In Proceedings of the 2006 20th Anniversary Conference on Computer Supported Cooperative Work {Banff, Alberta, Canada, November 04 – 08, 2006}. CSCW ’06. ACM Press, New York, NY, 181-190. DOI= http://doi.acm.org/10.1145/1180875.1180904 [back]

March 9, 2007

omnignorance, the future of the web

Filed under: academic,web development — alan @ 7:31 am

The dream of the web seems a form of omniscience, unlmited and universal knowledge available at the vlick ofof a button or least at the click of a Google ‘Seach’ button. However, last night I was on a site that empitomised the problems of the web.

I was pointed to a blog entry about a presentation that the blog said was “Simply the best presentation I’VE EVER SEEN!“. I was intrigued and and followed this to the Identity2.0 site and in particular a page about a keynote at OSCON 2005.

The entry about the talk mentioned ‘Identity2.0′ and ‘digital identity’ so guessed this was something to do with single logins (like MS passport) or open authentication, which has long been an open issue (with many ‘solutions’ but so far little success). However, was this person and this site talking about one of these such as plain open authentication, or something deeper.

Well it is fine for the page about the talk not to say clearly, it is written within the context of the Indetity2.0 site, so I looked for an ‘about’ link or something like that … nothing I stripped the url back to plain identity2.0.com and of course simply got to a stabdard blog front page (I guess rather like this one), with the latest news, but nothing to gove over context or background.

In fact by chasing yet more links to other sites, by half guessing from various abstracts, blog entries, etc. I managed to pick out half a story about what this was about … but why so hard?

This reminds me of the problem I recorded a month or so back when trying to find last week’s (as opposed to yesterday’s) news. Really easy to find the latest item or even the hotest item, but really bad at getting to the background that gives context and turns buzz words into meaning.

At the risk of sounding like a codger at a cafe table, the same is true of much software documentation. If you have seen the software grow and develop over the years it makes sense, but to students trying to make sense of Java packages, AJAX, Mac/Windows APIs, it is like fumbling in the dark. Good signpoosting at every street corner, but no roadmaps.

In all these cases there are real questions we want to ask, this is not like meandering around Flickr or YouTube, travelling just for the journey. However definitive statements (I’ll not say answers) give way to half-overheard conversations in a coffee shop.

It is often said that experts know more and more about less and less untul eventually they know everything about nothing. It seems we are turning into a generation who know less and less about more and more until we know nothing about everthing – omingnorance rules.

January 14, 2007

keeping track of history (Blair, Iraq, and all of us)

Filed under: personal,political — alan @ 8:34 am

I had been struck by Blair’s long-awaited statement about the manner of the execution of saddam, that he belatedely made last Tuesday evening. However, I wanted to be suer of what he said, so yesterday evening attempted to find out. Perhaps I am just too poor a web-user, but I found it incredibly difficult. Google seraches fund many earelier news articles about the fact that he hadnlt said anthing at that stage, and ones from earelier last week saying what he was about to say something and what it would be (now-a-days it seems news is written before the event), but nothing reporting what he said or when he said it (I couldn’t recall the exect day either).Having found earlier or later articles in newspapers and on the BBC I thought it should be easy to trace from them to related ones and hence the statement I was after … but no. While most seem to offer long term “most important stories in 2005″ archives, there does not appear to be an easy way (or possibly any way) to say “what was the BBC online stories for Wednesday January 12th 2007?”.

I did find the ‘number 10‘ site that does have a list of the prime minister’s speaches and statements, but of course not all his statements, just the ones they want you to read!

Eventually yahoo! news came to the rescue (albeit found through Google!) with a more recent article, but with links to background including a guardian online article from last wednesday … which yes! did have the full text of the relevant part of the statement:

As has been very obvious from the comments of other ministers and indeed from my own official spokesman, the manner of the execution of Saddam was completely wrong. But that should not blind us to the crimes he committed against his own people, including the death of hundreds of thousands of innocent Iraqis, one million casualties in the Iran/Iraq war and the use of chemical weapons against his own people, wiping out entire villages.

So the crimes that Saddam committed does not excuse the manner of his execution but the manner of his execution does not excuse the crimes.

Now to be fair, knowing this was accessible I tried an alternative tack and searched inside the guardian site using keywords and was able to find the article that way. Having realised this and did some searches on the bbc site and got the video of the statement. (Once I’d found suitable serach terms!)

So on newspaper and the bbc sites it seems you can do google-style searches, but not (unless I’m still missing something) ask “what was on the news last Wednesday” or (reasonably completely) what are the related articles to this one.

Obviously in a pre-web world I would not expect to be able to do this. I could (and still could) visit the British Library for old copies of newspapers (I assume they keep them) and for the last week possibly the local library. But of course when information is available it is not what you could find that counts, but what is easiest. The information that is available is the information that gets seen. Even in university our students are reluctant to read books as they believe they can find all they need on the web.

Now the reason I wanted to find the Blair statement was the reference to “one million casualties in the Iran/Iraq war”. He was rightly pointing out that the failings of the legal process of his execution should not blind us to the horror of his crimes. Now given the delay I assume the words were well prepared, and yet of three crimes things he noted one was this.

I guess the figure of 1 million sounded good (big numbers always impress), but to mention this without also noting that that war was waged with the complicit and explicit support of many countries including the UK and US seems at best amnesiac and at worst deceptive. Does he really not know this? Or is he simply hoping most who hear it won’t?

I can recall the Iran-Iraq war as a young adult, but those younger will have been in school and even for those around at the time I’m sure the memories get a little fuzzy, so perhaps he can get away with this type of manipulation. Or perhaps it is tht he only partly recalls the events and honestly presents this?

The US involvement is well documented, both in terms of miltary presence in the Gulf at the time, officially neutrally, but with minimal pretense acting against Iran who was then the ‘evil power’. Indeed (recalling my own and Nad’s earlier posts about the execution), in looking for this I found George Washington University’s National Security Archive of declaissified documents. In this there is a photograph of Donald Rumsfeld, then a special envoy from President Reagan, shaking hands with Saddam Hussein. This is not surprising, diplomatc have to do this all the time. Significantly though this meeting was, as the national secturity archives show, shortly after US intelligence had confirmed Iraq’s use of chemical weapons (Blair’s point 3) and discussed this at a presidential level. The US (in full knowledge) then went on to block UN resolutions deploring Iraq use of chemical weapons … initially with UK support. the ful story of UK support, I’m sure is there, but even harder to find … I seem to recall British warships in the gulf, but it was more than 20 years ago!
I an age of instant information, it is amazing that getting the basic facts of ongoing news items is so difficult. I recall a year or so back there was a call for journalists to give more context in theor reporting. However, when interviews a respected journalist insisted that theor job was the news, the changes not the backgrund … but without the background the interpretation of what we hear is different.

If journalists do not see it as their job to give such background and it is still so hard to find elsewhere, then politicians can go on deceiving themselves and their people.

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