Figure 1
Distribution of the Vlaardingen Culture and Stein group (after: Verhart 2010; base map: © EuroGeographics 2024, map made in QGIS).
Table 1
List of queries entered in AGNES with number of hits.
| START DATE (BCE) | END DATE (BCE) | FREE TEXT QUERY | ENGLISH TRANSLATION | NUMBER OF HITS |
|---|---|---|---|---|
| “vlaardingen cultuur” | vlaardingen culture | 834 | ||
| 3800 | 2000 | “vlaardingen*” | vlaardingen | 2483 |
| “vlaardingen stein wartburg” | vlaardingen-stein-wartburg | 11 | ||
| “vlaardingen stein wartberg” | vlaardingen-stein-wartburg | 4 | ||
| “vlaardingen groep” | vlaardingen group | 265 | ||
| “vlaardingen stein” | vlaardingen-sStein/vlaardingen stein | 98 | ||
| “vlaardingencultuur” | vlaardingen culture | 712 | ||
| “vlaardingengroep” | vlaardingen group | 125 |
Table 2
Relevance of AGNES hits.
| NR. | RELEVANCE |
|---|---|
| 1 | Relevant (report about a Vlaardingen Culture site) unknown |
| 2 | Relevant (report about a Vlaardingen Culture site) known |
| 3 | Relevant (previously unknown Vlaardingen site mentioned in the text) |
| 4 | Relevant (previously unknown Vlaardingen site mentioned in the literature list) |
| 5 | Semi-relevant (Stein site publication, mentioning Vlaardingen Culture in discussion) |
| 6 | Semi-relevant (Vlaardingen Culture mentioned in a discussion) |
| 7 | Semi-relevant (a different Vlaardingen Culture site mentioned in the text based on previous research) |
| 8 | Not relevant (not a report about a Vlaardingen Culture site) |
Table 3
Types of irrelevant hits.
| NUMBER | TYPE OF IRRELEVANT DOCUMENT |
|---|---|
| 1 | Wrong time period |
| 2 | Page listing abbreviations |
| 3 | Page containing research plan (plan van aanpak) |
| 4 | Unknown time period |
| 5 | Page containing list of time periods |
| 6 | Negation (‘no vlaardingen culture’) |
| 7 | Other |
| 8 | Literature list (only) |
| 9 | Coring chart |
| 10 | Database structure |
| 11 | Vlaardingen as a location on a map |
| 12 | Vlaardingen as place name in text |
Table 4
Relevance of AGNES hits totals.
| RELEVANCE | COUNT | % |
|---|---|---|
| Relevant (report about a Vlaardingen Culture site) unknown | 165 | 3.6 |
| Relevant (report about a Vlaardingen Culture site) known | 259 | 5.7 |
| Relevant (previously unknown Vlaardingen site mentioned in the text) | 9 | 0.2 |
| Relevant (previously unknown Vlaardingen site mentioned in the literature list) | 6 | 0.1 |
| Semi-relevant (a different Vlaardingen Culture site mentioned in the text based on previous research) | 1398 | 30.8 |
| Semi-relevant (Stein site publication, mentioning Vlaardingen Culture in discussion) | 65 | 1.4 |
| Semi-relevant (Vlaardingen Culture mentioned in a discussion) | 670 | 14.8 |
| Not relevant (not a report about a Vlaardingen Culture site) | 1960 | 43.2 |
| Total | 4532 | 99.8 |
Table 5
Reasons for irrelevant hits AGNES.
| IRRELEVANCE REASON | COUNT | PERCENTAGE |
|---|---|---|
| Page listing abbreviations | 4 | 0.2% |
| Page containing research plan (plan van aanpak) | 2 | 0.1% |
| Page containing list of time periods | 257 | 13.1% |
| Negation (‘no vlaardingen culture’) | 16 | 0.8% |
| Literature list (only) | 465 | 23.7% |
| Database structure | 302 | 15.4% |
| Vlaardingen as place name in text | 905 | 46.2% |
| Vlaardingen as place name on a map | 8 | 0.4% |
Figure 2
Network representation; two-mode network visualising the relevance of different queries. Network visualising the different queries (grey) and relevant (red), irrelevant (blue), and semi-relevant hits. Nodes are scaled according to their centrality degree (std), links are ranked by weight, visualized in stress minimization layout (graph made in Visone).
Figure 3
Network representation; two-mode network visualising irrelevance types (blue) for different queries (grey), Nodes are scaled according to their centrality degree (std), links are ranked by weight, visualized in stress minimization layout (graph made in Visone).
Table 6
Results per site, newly found sites, previously known sites and sites of which the reports are not in AGNES.
| RESULT PER SITE | COUNT | PERCENTAGE |
|---|---|---|
| Found exclusively in AGNES | 27 | 17.1% |
| Found exclusively indirectly in AGNES | 3 | 1.9% |
| Found previously and in AGNES | 39 | 24.7% |
| Not found in AGNES queries (pdf not present in DANS or ARCHIS) | 76 | 48.1% |
| Not found in AGNES queries (pdf is present in DANS) | 13 | 8.2% |
| Total | 158 | 100% |
Figure 4
Vlaardingen Culture sites plotted according to whether or not they were found in AGNES (basemap: © EuroGeographics 2024, map made in QGIS).
Figure 5
Vlaardingen Culture sites plotted according to their cultural attribution, on the right the supposed border area between the Vlaardingen and Stein group (basemap: © EuroGeographics 2024, map made in QGIS). The sites are plotted according to their cultural attribution, on the left the supposed border area between the Vlaardingen and Stein group.