Performance of the selected model

Before moving forward with analysis with the help of the highest rated model, the model with only lemmatized nouns and a stop list, there is a need to check if it correctly classifies documents. To do this fully would require labeled documents and would defeat the purpose of using topic modeling. But, it is important to check the classifications of a few documents to have an idea of the reliability of the model’s classifications. Here, a few of the documents identified as containing the topic labeled ’housing policies’ were inspected. The document classified as having the highest probability of this topic can be seen below.

The document is a motion, translated from Swedish. For the original document, see Appendix F. This is deemed to be an accurate classification of a document containing the ’housing policies’ topic. A few other documents were also inspected and deemed to be accurately classified with the ’housing policies’ topic.

Motion to the Riksdag 2010 / 11:C264 The building of cheap tenancies s34010 Proposal for decision in the Riksdag. The Riksdag announces to the Government their opinion of what is presented in the motion about stimulus for the production of tenancies. Motivation. The Reinfeldt government have removed the housing policy goals from before. This was done at the same time as when they removed the support for interest and investment in relation to the construction of new tenancies. The result has been disastrous consequences for the building of tenancies. The pursued politics have failed. What is needed now is politics which defends the tenancy and stimulates the building of tenancies for a reasonable cost. Such politics consists of introducing an investment support for tenancies and a review of the neutrality at the housing market. Stockholm the 26th of October 2010 Ann-Christin Ahlberg (S) Hans Olsson (S) Phia Andersson (S)

A few random documents from each document type were also classified and inspected. For the shorter document types, interpellations, motions and skriftliga frågor, most topics were deemed suitable. An example of this is seen below. The document is of the type skriftliga frågor, and the top four topics for this document are labeled ’Fishing & Culture, ’Environment & Water’, ’Food’ and ’Pollution’. All of these topics are deemed to fit the document. The original document in Swedish can be read in Appendix F.

The 7th of September / Answer to question / 2009/10:99 The Swedish fermented herring. / Agriculture minister Eskil Erlandsson / Peter Hultqvist have asked me what measures I plan to take by reason of the worry for the future of the fermented herring. The question has its origins in the temporary exception Sweden has from the EU’s regulations regarding limits of some toxins in certain fish from the Baltic Sea area, which ends the 31th of Decemeber 2011 / Sweden has together with Finland a time limited exception from the regulation in the EU for highest allowed amount of dioxin and PCB in fish, the exception holds for among others herring from the Baltic Sea. The exception is to a largely based on the fact that Sweden has a well-functioning system for protection of the public health, through information directed to the consumers about the consumption of certain fish species from the Baltic Sea area might need to be limited. / The fermented herring is a part of our food heritage and an important tradition in large parts of Sweden, and I want to protect that. I have therefore personally been in touch with the commission for health and consumer issues, John Dalli, and told him how important the Swedish tradition surrounding fermented herring is. The consumption is also usually very limited in both geographic region and time. / Would the exception end and one does not find another solution it would with all probability mean that all the small-scale fishing at the Baltic Sea coast would cease to exist. I don’t want to participate in that. Instead I want to protect the herring, and if our experts at the agencies makes the assessment that through the present dietary recommendations and other measures one can ensure the public health I will act to find a solution that enables further fishing. / Before the coming negotiation about a continuing exception the government has delegated the National food agency and the National board of fisheries, after consulting with the Environmental protection agency, to investigate what options there is and what the consequences of thes will have. The agencies will leave their final report the 1st of March 2011. / Last but not least I want to emphasize that to solve the problem with pollution in fish from the Baltic Sea the supply of the toxins to

the Baltic Sea must be limited. Sweden actively works with this nationally as well as within the EU and globally. /

When inspecting the classifications of the document it was found that topics which had a high probability were often correct. But topics with a low probability were often not correct. (These topics were still classified as being in the document, just not with a high probability.) The protocols were classified with lots of topics, which is natural because they are from debates and proceedings which contain many different subjects. These topics were often of a more general type, for example about employment and finances. This is similar to the results for the betänkande, SOU and propositions. These document types were summarized. Despite this, the retrieved topics for these documents were deemed suitable but quite broad, usually concerning finances and organizations. However, this might be more due to the specificity of the topics and the nature of the documents than bad classification. The chosen topic model doesn’t have a topic for the finances of the Royal household, for example, which is a very specific topic and therefore a topic concerning finances in general should be good enough. It is also in the nature of these documents to contain lots of words related to finances, they are political documents.