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Notice bibliographique
Résumé
In this dissertation, we articulate the new Personal Volunteer Computing paradigm, that refines Volunteer Computing by focusing on solutions that are personal to the user on multiple dimensions: they target personal projects, they leverage the participation of volunteers from their personal social network, and they are built into personal tools that can be deployed on personal devices and can be easily maintained by a single developer.We then present Pando, a new and first tool for personal volunteer computing written in and for JavaScript, that distributes the application of a function on a stream of inputs into the browsers of participating devices. Pando dynamically scales to new devices, gracefully tolerates sudden disconnections, and is easy to program because it is based on a declarative concurrent programming paradigm, in which the non-determinism of parallel executions is not observable by users. We follow with a more detailed presentation of the implementation of Pando, based on the new Limiter, StreamLender, and DistributedMap abstractions. Our presentation uses a high-level notation, independent of JavaScript and that simplifies reasoning about concurrent aspects, to introduce all the algorithms that implement the Limiter, StreamLender, and DistributedMap abstractions. Because the concurrent aspects make StreamLender challenging to implement, even with a clear description, we present a run-time verification approach to ensure it is correct. The approach is easy to parallelize, with Pando for example, and quickly generates a large number of random executions to ensure a high-probability of correctness. The combination of clear descriptions and testing strategy should make Pando easy to reimplement in other programming environments.We then present a large scope of applications that we implemented for Pando, based on existing libraries and examples. These applications represent various dataflow patterns and show Pando can be used not only for compute-intensive tasks but also for crowd-processing. We then measure the throughput performance of these applications in three networking scenarios: (1) over a local-area Wi-Fi network, with personal laptop and smartphones, (2) over a virtual private network distributed throughout France, with the Grid5000 nodes, and (3) with a wide-area network throughout Europe on the Internet, with the PlanetLab EU nodes. We show personal devices are competitive in all scenarios, sometimes with older devices competing with newer models, and other times with combinations of personal devices outcompeting remote server nodes. The flexible and easy support of all these scenarios is, to the best of our knowledge, a first in the volunteer computing literature. We then present Genet, a new fat-tree overlay for WebRTC that enables Pando to overcome the limits of WebRTC in the number of connections, and showed the resulting combination of Pando and Genet to be able to scale to a thousand browsers in 30-55 seconds on local networks. Those results are possible because the design of Genet only uses local information to deterministically route the WebRTC connection messages, while ensuring the resulting tree is probabilistically balanced.We conclude by outlining new exciting research directions that take into account the limits to growth our society is currently facing. Compared to the current trends in research, these new directions make smaller whole-system designs done by small teams viable again, but bring a stronger focus on leveraging abundant personal computing devices and taking into account the growing importance of efficiently using renewable electricity sources
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Prédiction distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,002 | 0,000 |
| Science ouverte | 0,009 | 0,035 |
| Intégrité de la recherche | 0,000 | 0,001 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,000 | 0,002 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découle