Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Comparison between ad hoc information extraction and standard IE.
| Ad hoc IE | Standard IE | |
|---|---|---|
| Scope | specific concept | entire domain |
| Development effort | low | high |
| Promptness | fast | slow |
| Adaptability by user | yes | no |
| Accuracy | lower | higher |
| Confidence | low | high |
