Project success indicators focusing on residential projects: Are schedule performance index and cost performance index accurate measures in earned value?
Bibliographic record
Abstract
As a concept of project control that provides a quantitative measure of schedule and cost information, earned value (EV) can evaluate work progress by identifying potential delays and cost overruns. When EV is used as a construction control technique, the schedule performance index (SPI) and the cost performance index (CPI) are the core factors in the EV system. The standard is only 1, i.e., 1.0 above or below. Though the two indices have important roles in the EV system, those indices do always show the project status exactly; for example, when planned value (PV), EV, and actual cost (AC) are not collected in a timely manner. Additionally, there is no guideline on how each value in SPI and CPI is understood or how to read the hidden meaning behind the construction status. Therefore, this study first speculates about the meaning of the two indices, then suggests a practical application, and finally shows the framework where the two indices apply to various types of construction.
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 distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.002 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.004 | 0.002 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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 teacher head, 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".