Bibliographic record
Abstract
Increased investment in the mining sector in Africa is often presented as a key strategy to leverage growth and development on the continent. The reforms introduced to this end in the 1980s and 1990s have indeed contributed significantly to an increase in investment. According to a United Nations Conference on Trade and Development (UNCTAD) study, by 2004 foreign direct investment (FDI) in mining in Africa had reached US$15 billion annually, representing 15 per cent of the global total, up from 5 per cent during the mid-1980s (UNCTAD, 2005, p. 39). These investments boosted the role of the mining sector in mineral-rich economies. As suggested by a World Bank study, gold mining contributed 2.9 per cent of Mali’s gross domestic product (GDP) in 1994, increasing to 12.7 per cent in 2002, and gold’s contribution to Mali’s total exports increased from 18 per cent in 1996 to 65.4 per cent in 2002 (World Bank, 2005, p. 24). These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.002 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.006 | 0.005 |
| Open science | 0.002 | 0.004 |
| Research integrity | 0.003 | 0.002 |
| Insufficient payload (model declined to judge) | 0.470 | 0.295 |
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; the direct Gemma label and the distilled Codex classifier agree on what is shown here.
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".