Table 6.
Topics extracted by the LDA method.
| Topic interpretation | Key words | Share% | Popularity% |
|---|---|---|---|
| Topic 1 (Retrieval and storage of information via APIs): Usage of integrated APIs in order to accelerate the collection process and provide rapid analytics. | data, use, try, api, get, code, how, column, file | 62.73 | 18.4 |
| Topic 2 (Time series analysis): Analysis and plotting of time series presumably for monitoring the evolution of cases or deaths in a specific timeframe. | case, data, date, try, how, day, country, use, column, number | 50.89 | 14.2 |
| Topic 3 (COVID-19 data visualization): Modeling in maps or in graphs of figures concerning the reported cases, presumably to study the epidemical spreads and examine the pace of transmission. | use, data, code, how, try, map, case, work, plot | 57.84 | 9.7 |
| Topic 4 (Support for code related data analysis): Questions that express the need for other individuals to review a data analysis code snippet and provide suggestions or feedback. | use, value, how, get, data, code, want, try | 51.37 | 6.7 |
| Topic 5 (Data extraction from web elements): Exploitation of web sources in order to retrieve COVID-19 related data found in several web elements. | data, file, try, button, use, download, how, get, code, click, url | 50.95 | 7.1 |
| Topic 6 (Data plotting): Plotting specific data related to COVID-19 (cases, deaths etc.) in multiple ways. | use, data, get, try, how, select, like, want, plot | 58.68 | 6.9 |
| Topic 7 (Text retrieval from online sources (e.g. articles)): Text mining and text scraping from sources that provide detailed reports about the latest developments around COVID-19. | use, code, how, get, article, try, word, list, what, text | 54.88 | 5.4 |
| Topic 8 (Error Handling / Suggestions in website design): Solutions in technical errors and bugs that occur during the development phase of COVID-19 related websites. | try, data, get, code, use, how, error, work, website, want | 58.30 | 5.9 |
| Topic 9 (Suggestions for code enhancements): Suggestions of enhancements that can make code snippets run more efficiently and smartly. | use, data, file, code, work, try, how, would, number | 55.42 | 5.1 |
| Topic 10 (Technical issues on data usage and file creation): Potential obstacles that a specialist could be subjected to when using data or storing information in files. | use, try, data, code, get, file, error, how, work, create | 58.16 | 5.7 |
| Topic 11 (App & Web development / Data updating): Creation of informative mobile applications and websites that may operate as trackers of cases, update data regarding the demographics of the pandemic (deaths, cases etc.). | data, use, try, how, value, get, work, help, app, update | 62.12 | 5.4 |
| Topic 12 (Issues in creating charts): Questions in this topic seek solutions in technical issues regarding chart visualizations. | get, code, line, bar, try, file, chart, how, use | 45.69 | 3.8 |
| Topic 13 (Geostatistics): Plotting of several types of features in interactive maps / Exploration of geographical patterns concerning the number of confirmed cases, deaths or recovered patients. | type, latitude, longitude, feature, coordinates, property, point, median, state, zip code | 26.02 | 1.6 |
| Topic 14(Data for cases/ deaths per country): Issues encountered during the analysis of data concerning cases or deaths distributed for every country. | get, try, use, data, how, death, country, error, show, case | 57.16 | 4.1 |