AWS t4.large dedicated instance[^25]. The crawler, the text analyzers and the interface all run locally. A total amount of 166K tweets and press mentions were gathered, with a maximum of 6.6K mentions in a single day. The interface was public and offered real-time results refreshed each 15 minutes. We can see from the volume of the data, that this was a low latency monitoring. Even if there were a lot of events to track, the local nature of most of them explains the little impact they have in social media.

Political Domain {#isv2018:success:pol}
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Talaia was used to track citizen opinions during the electoral Basque electoral campaign of September 2016. The crawling was carried out during the election campaign period, starting on September 8th (23:59pm) and finishing on September 23th (23:59pm). It offers useful insights for political analysis such as sympathy rankings, the evolution of the opinions over time, most relevant messages, etc.

The system ran on a server with a Intel Xeon 4 core processor (E5530) at 2.4 GHz and 16GB RAM. MySQL databases are locally stored in the server. The crawler, text analyzers and the interface all run locally. A total amount of 4.25M tweets and press mentions 