Copper prices will edge higher due to labour disputes
Bibliographic record
Abstract
Subject The outlook for copper prices. Significance Having seen prices halve over five years, the copper market has stabilised since the fourth quarter of 2016. The long bear market forced the industry to cut exploration and capital reserves, and demand rebounded in 2016, growing by 1.8%. This year the market has started to tighten as there have been supply disruptions. Impacts Chile’s output could rise in coming years as the government will inject 975 million dollars to bolster state-owned Codelco’s growth. In six years, Rio Tinto and Chinalco found no copper in China and have stopped looking, so China will remain the world’s largest importer. Chile’s miners, reliant on costly coal and gas, are reviewing bids from wind and solar power producers, which may dramatically cut costs. To increase its stake in two Congolese mines, Glencore spent more than 500 million dollars to buy out Israeli financier Dan Gertler.
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 | 0.002 | 0.007 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| Bibliometrics | 0.001 | 0.002 |
| Science and technology studies | 0.005 | 0.002 |
| Scholarly communication | 0.009 | 0.005 |
| Open science | 0.001 | 0.003 |
| Research integrity | 0.004 | 0.004 |
| Insufficient payload (model declined to judge) | 0.237 | 0.089 |
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".