ALPACA-advanced linguistic pattern and concept analysis framework for software engineering corpora
Bibliographic record
Abstract
Software engineering corpora often contain domain-specific concepts and linguistic patterns. Popular text analysis tools are not specially designed to analyze such concepts and patterns. In this paper, we introduce ALPACA, a novel, customizable text analysis framework. The main purpose of ALPACA is to analyze topics and their trends in a text corpus. It allows users to define a topic with a few initial domain-specific keywords and expand it into a much larger set. Every single keyword can be expanded into long clauses to describe topics more precisely. ALPACA extracts those clauses by matching text with linguistic patterns, which are long sequences mixing both specific words and part-of-speech tags frequently appeared in the corpus. ALPACA can detect these patterns directly from pre-processed text We present one example demonstrates the use of ALPACA for text corpora of security reports.
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 | 0.008 | 0.022 |
| Meta-epidemiology (narrow) | 0.002 | 0.002 |
| Meta-epidemiology (broad) | 0.001 | 0.003 |
| Bibliometrics | 0.011 | 0.008 |
| Science and technology studies | 0.002 | 0.002 |
| Scholarly communication | 0.006 | 0.007 |
| Open science | 0.003 | 0.005 |
| Research integrity | 0.001 | 0.004 |
| Insufficient payload (model declined to judge) | 0.025 | 0.013 |
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".