KEYWORD EXTRACTION AND TOPIC MODELLING

Three trypes of information has been extracted from open-ended questions, in order to summarize users' answers:

  1. A Wordcloud with the words most frequently used. Though based only on the frequencies of the terms, in many cases they communicate well the terminology used and the areas of action indicated.
  2. Keywords, identified by a TextRank algorithm, coommunicating the most important terms in the answers. Keywords have been limited to single nouns.
  3. Topic modeling , a technique based in this case on Latent Dirichlet Allocation, which clusters the terms into groups that communicate the different "concepts" expressed.

The topic modeling output has been provided through an interactive visualization, including:

  • A distance between the identified topics is shown on the left side. By clicking one of them, the most significant terms of the topic are shown on the right side. Topics can also be explored by using the panel on the top.
  • The most significant terms for each topic appear on the right side. The frequency of each term actually observed from the answers is shown, together with the estimated frequency within the topic.
  • By clicking on each term, the topics in which it appears are interactively shown, with size proportional to the importance of that term in the topic.

Please describe your company (type, customers, number of employees, ...)

Wordcloud

Keywords

Keywords:

azienda - 6.025254346264369
aziende - 2.933260912698412
ricerca - 2.9249917898193756
studio - 2.549671428571428
ospedale - 2.1797007868089766
soci - 2.1523807539682536
studenti - 1.9304253472222221
macchine - 1.7874859486179528
centro - 1.777994834428024
università - 1.7217129629629628
settore - 1.690016723111658
universitario - 1.6075434027777775

Topics

What's your role? Describe it briefly

Wordcloud

Keywords

Keywords:

manager - 4.063599508240298
responsabile - 3.8830032407407398
medico - 3.4281138227513224
gestione - 3.053853538359788
area - 2.6413620866402114
clienti - 2.242087100959469
direttore - 2.159974537037037
sviluppo - 2.0946501818783068
ricerca - 1.893682242063492
servizi - 1.8114725694444447
manutenzione - 1.7739469246031745
consulenza - 1.7078611111111113

Topics

Can you briefly describe your usual working day? E.g. Physical activity, Computer work, Construction site, Travel ...

Wordcloud