INTEGRATED PEST MANAGEMENT PRESCRIPTION Canada thistle
Bibliographic record
Abstract
Canada thistle (Cirsium arvense) is a perennial, which grows from 3 to 6 feet in height and has an extensive underground root system. Flowers are small, numerous and lavender to white in color. The flower heads grow on the tips of branches, male and female flowers are found on different plants, and both must be present to produce viable seeds. Viable seeds can remain dormant in the soil for up to 20 years. Leaves are long and narrow, deeply lobed with sharp, yellow spines on the edges. Canada thistle spreads by seed and aggressive, creeping, horizontal roots (rhizomes) that can extend 15 feet and vertical roots 6-15 feet deep. Nearly all parts of the root can produce buds that develop into shoots that grow and form new plants. Root segments as small as 1/8 to 3/8 inch in length and 1/16 inch in diameter can produce new plants. Impacts: Canada thistle is highly invasive. It can spread quickly to form dense patches, crowding out forage grasses by up to 60 percent. Canada thistle competes with crops,
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.018 | 0.002 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".