Keyword frequency in popular tech media

<p><strong>Keywords trending in the tech media (01.2016-03.2019)</strong></p> <p><strong>Sources</strong></p> <ul> <li>Gigaom 0.5%</li> <li>Euractiv 0.9%</li> <li>The Conversation 1.3%</li> <li>Politico Europe 1.3%</li> <li>IEEE Spectrum 1.8%</li> <li>Techforge 4.3%</li> <li>Fastcompany 4.5%</li> <li>The Guardian (Tech) 9.2%</li> <li>Arstechnica 10.0%</li> <li>Reuters 11%</li> <li>Gizmodo 17.5%</li> <li>ZDNet 18.3%</li> <li>The Register 19.5%</li> </ul> <p><strong>Methodology</strong></p> <ul> <li>Frequency of appearances for all unigrams and bigrams in the texts</li> <li>Frequency: number of appearances of every term divided by the number of published articles (for every month and source)</li> <li>This measure reveals how many times an expression has been mentioned on average per article</li> <li>Several media sources: a representative index is calculated with weighted average</li> <li>Average monthly change in the analised term&#39;s frequency is calculated by OLS regressions</li> <li>The dependent variable of the estimation is the frequency index, while the number of months since the beginning of the analysed period (January 2016) is the independent variable</li> <li>The regression coefficient (referred to as coef) shows by how much on average the analysed expression&rsquo;s frequency changed with every observed month (marginal change of the frequency), revealing which keywords had the biggest monthly growth</li> </ul> <p><strong>Files</strong></p> <ul> <li>unigrams: coefs_1weighted_site.csv</li> <li>bigrams: coefs_2weighted_site.csv</li> </ul> <p>&nbsp;</p>