Tag Archives: text analysis

Facteaser: a Knime workflow for parsing Factiva outputs

Most of the cool kids in communication and cultural studies these days are studying social media. Fake news on Facebook, Russian bots on Twitter, maladjusted manboys on Reddit — these are the kinds of research topics that are likely to score you a spot in one of the popular sessions at that big conference that everyone will be going to this year. And for the most part, rightly so, since these platforms have become an integral component of the networked public sphere in which popular culture and political discourse now unfold.

But lurking at the back of the conference programme, in the Friday afternoon sessions when the cool kids have already left for the pub or the airport, you might find some old-timers and young misfits who, for one reason or another, continue to study more traditional, less sexy forms of media. Like newspapers, for example. Or television news. Not so long ago, these were the go-to sources of data if you wanted to make claims about the state of public discourse or the public sphere.

If you don’t member member berries, you need to track down episode 268 of South Park.

Never one to follow the cool kids, I structured my whole PhD around a dataset comprising around 24,000 newspaper articles supplemented with texts from similarly uncool sources like media releases and web pages. One reason for choosing this kind of data is that it enabled me to construct a rich timeline of an issue (coal seam gas development in Australia) that reached back to a time before Twitter and Facebook even existed (member?). Another reason is that long-form texts provided good fodder for the computational methods I was interested in exploring. Topic models tends to work best when applied to texts that are much longer than 140 characters, or even the 280 that Twitter now allows. And even if you are interested primarily in social media, mainstream media can be hard to ignore, because it provides so much of the content that people share and react to on social media anyway.

So there are in fact plenty of reasons why you might still want to study texts from newspapers or news websites in the age of social media. But if you want to keep up with your trending colleagues who boast about their datasets of millions of tweets or Facebook posts assembled through the use of official platform APIs (member?), you might be in for some disappointment. Because while news texts also exist in their millions, sometimes even within single consolidated databases, you will rarely find them offered for download in large quantities or in formats that are amenable to computational analyses. The data is all there, but it is effectively just out of reach. Continue reading

A thesis relived: using text analytics to map a PhD journey

 

Your thesis has been deposited.

Is this how four years of toil was supposed to end? Not with a bang, but with a weird sentence from my university’s electronic submission system? In any case, this confirmation message gave me a chuckle and taught me one new thing that could be done to a thesis. A PhD is full of surprises, right till the end.

But to speak of the end could be premature, because more than two months after submission, one thing that my thesis hasn’t been yet is examined. Or if it has been, the examination reports are yet to be deposited back into the collective consciousness of my grad school.

The lack of any news about my thesis is hardly keeping me up at night, but it does make what I am about to do in this post a little awkward. Following Socrates, some people would argue that an unexamined thesis is not worth reliving. At the very least, Socrates might have cautioned against saying too much about a PhD experience that might not yet be over. Well, too bad: I’m throwing that caution to the wind, because what follows is a detailed retrospective of my PhD candidature.

Before anyone starts salivating at the prospect of reading sordid details about about existential crises, cruel supervisors or laboratory disasters, let me be clear that what follows is not a psychodrama or a cautionary tale. Rather, I plan to retrace the scholastic journey that I took through my PhD candidature, primarily by examining what I read, and when.

I know, I know: that sounds really boring. But bear with me, because this post is anything but a literature review. This is a data-driven, animated-GIF-laden, deep-dive into the PhD Experience. Continue reading

Tracking and comparing regional coverage of coal seam gas

In the last post, I started looking at how the level of coverage of specific regions changed over time — an intersection of the Where and When dimensions of the public discourse on coal seam gas. In this post I’ll continue along this line of analysis while also incorporating something from the Who dimension. Specifically, I’ll compare how news and community groups cover specific regions over time.

Regional coverage by news organisations

One of the graphs in my last post compared the ratio of coverage of locations in Queensland to that of locations in New South Wales. Figure 1 below takes this a step further, breaking down the data by region as well. What this graph shows is the level of attention given to each region by the news sources in my database (filtered to ensure complete coverage for the period — see the last post) over time. In this case, I have calculated the “level of attention” for a given region by counting the number of times a location within that region appears in the news coverage, and then aggregating these counts within a moving 90-day window. Stacking the tallies to fill a fixed height, as I have done in Figure 1, reveals the relative importance of each region, regardless of how much news is generated overall (to see how the overall volume of coverage changes over time, see the previous post). The geographic boundaries that I am using are (with a few minor changes) the SA4 level boundaries defined by the Australian Bureau of Statistics. You can see these boundaries by poking around on this page of the ABS website.

The regions in Figure 1 are shaded so that you can see the division at the state level. The darker band of blue across the lower half of the graph corresponds with regions in Queensland. The large lighter band above that corresponds with regions in New South Wales. Above that, you can see smaller bands representing Victoria and Western Australia. (The remaining states are there too, but they have received so little coverage that I haven’t bothered to label them.) I have added labels for as many regions as I can without cluttering up the chart.

Figure 1. Coverage of geographic regions in news stories about coal seam gas, measured by the number of times locations from each region are mentioned in news stories within a moving 90-day window. The blue shadings group the regions by state. Hovering over the image shows a colour scheme suited to identifying individual regions. You can see larger versions of these images by clicking here and here.

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