A semantic approach for building pervasive spaces
Bibliographic record
Abstract
Large and pervasive sensing, communications, and computing infrastructures are enabling the realization of pervasive spaces. Enabling such spaces, however, encompasses a set of challenges. First, programming each application such that it connects to each sensor and it interprets the data being sensed requires a concentration of expertise that is rarely available. Second, achieving a wise and fair usage of the infrastructures is impossible with current approaches due to their lack of awareness of domain and application semantics. This paper summarizes a PhD dissertation that focuses on designing and implementing a middleware that addresses these challenges and overcomes the limitations of previous approaches by featuring a distributed streaming architecture and by being aware of the semantics of the space and applications. Namely, we focus on (i) the design and implementation of the overall system architecture and its underlying programming and execution model, (ii) a set of mechanisms to provide the right level of abstraction to applications, and (iii) a set of mechanisms that are able to protect privacy due to the inclusion of semantics in the middleware.
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 | 0.003 | 0.004 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.002 |
| Bibliometrics | 0.002 | 0.002 |
| Science and technology studies | 0.003 | 0.009 |
| Scholarly communication | 0.007 | 0.014 |
| Open science | 0.003 | 0.005 |
| Research integrity | 0.003 | 0.004 |
| Insufficient payload (model declined to judge) | 0.004 | 0.001 |
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".