Table 1 Comparison between the old Textpresso system and Textpresso Central

Full text searching

✔

✔

PMC OA corpus

✔

Custom corpus creation

✔

Literature subdivision

✔

Keyword and category searching

✔

✔

Search by paper section

✔

Keyword exclusion, search filters

✔

✔

Category browsing and searching

✔

✔

Sort by relevance or year

✔

✔

Search results viewed within context of full text

✔

Highlight and annotate full text

✔

Customizable annotation interface

✔

Communication with external curation databases

✔

UIMA compliant

✔