Minerals and stones in Italy
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Sicily is famous for its mineral resources, including sulfur, celestite, gypsum, zeolite, obsidian, rock salt, and pumice stone. Sulfur mining was important historically due to demand for sulfuric acid production. Celestite mining extracts strontium carbonate used in television and monitor screens. Gypsum has various construction and decorative uses when milled and dried. Zeolite and pumice stone have cosmetic and industrial applications due to their unique properties.
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Ever-changing customer expectations demand more modern digital experiences, and the bank needed to find a solution that could provide real-time data to its customer channels with low latency and operating costs. Join this session to learn how Citizens is leveraging Precisely to replicate mainframe data to its customer channels and deliver on their “modern digital bank” experiences.
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Folding is a recent technique for building efficient recursive SNARKs. Several elegant folding protocols have been proposed, such as Nova, Supernova, Hypernova, Protostar, and others. However, all of them rely on an additively homomorphic commitment scheme based on discrete log, and are therefore not post-quantum secure. In this work we present LatticeFold, the first lattice-based folding protocol based on the Module SIS problem. This folding protocol naturally leads to an efficient recursive lattice-based SNARK and an efficient PCD scheme. LatticeFold supports folding low-degree relations, such as R1CS, as well as high-degree relations, such as CCS. The key challenge is to construct a secure folding protocol that works with the Ajtai commitment scheme. The difficulty, is ensuring that extracted witnesses are low norm through many rounds of folding. We present a novel technique using the sumcheck protocol to ensure that extracted witnesses are always low norm no matter how many rounds of folding are used. Our evaluation of the final proof system suggests that it is as performant as Hypernova, while providing post-quantum security.
Paper Link: https://eprint.iacr.org/2024/257
Main news related to the CCS TSI 2023 (2023/1695)
An English 🇬🇧 translation of a presentation to the speech I gave about the main changes brought by CCS TSI 2023 at the biggest Czech conference on Communications and signalling systems on Railways, which was held in Clarion Hotel Olomouc from 7th to 9th November 2023 (konferenceszt.cz). Attended by around 500 participants and 200 on-line followers.
The original Czech 🇨🇿 version of the presentation can be found here: https://www.slideshare.net/slideshow/hlavni-novinky-souvisejici-s-ccs-tsi-2023-2023-1695/269688092 .
The videorecording (in Czech) from the presentation is available here: https://youtu.be/WzjJWm4IyPk?si=SImb06tuXGb30BEH .
Mutation Testing for Task-Oriented Chatbots
Conversational agents, or chatbots, are increasingly used to access all sorts of services using natural language. While open-domain chatbots - like ChatGPT - can converse on any topic, task-oriented chatbots - the focus of this paper - are designed for specific tasks, like booking a flight, obtaining customer support, or setting an appointment. Like any other software, task-oriented chatbots need to be properly tested, usually by defining and executing test scenarios (i.e., sequences of user-chatbot interactions). However, there is currently a lack of methods to quantify the completeness and strength of such test scenarios, which can lead to low-quality tests, and hence to buggy chatbots.
To fill this gap, we propose adapting mutation testing (MuT) for task-oriented chatbots. To this end, we introduce a set of mutation operators that emulate faults in chatbot designs, an architecture that enables MuT on chatbots built using heterogeneous technologies, and a practical realisation as an Eclipse plugin. Moreover, we evaluate the applicability, effectiveness and efficiency of our approach on open-source chatbots, with promising results.
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Minerals and stones in Italy
- 1. THE EURORAINBOW OF SCHOOLS GREECE 18-23 MARCH 2012 STONES AND MINERAL RESOURCES IN SICILY
- 2. MINERAL RESOURCES IN SICILY • Central Sicily is famous worldwide for its mines of sulfur and splendid specimens, still unmatched in the world for their beauty, of sulfur, celestite and gypsum. • In the ‘700 development of the chemical industry in France and England with great demand for sulfuric acid for the production of soda, increased the demands of sulfur, stimulating research and the opening of new mines. It was used in medicine but also in the gunpowder weapons industry.
- 3. SULPHUR
- 7. Sicily is also famous for some zeolite to be found in the western part of the island • Zeolite is a strange material. If you spray water on it begins to radiate heat up to 80 degrees, then dry out and quickly return to the initial position, ready to heat up again. No wonder her name means "boiling stone".
- 8. CELESTITE • Celestite (or celestite) is a mineral consisting essentially of strontium sulphate (SrSO 4)is located in the limestone soils and sediments associated with gypsum, anhydrite, halite and sulfur. • It is s extracted to obtain strontium carbonate which is used as special glass screens for televisions and monitors.
- 9. GYPSUM
- 10. • Gypsum is a typical mineral which is formed by direct precipitation from supersaturated waters. • Gypsum, milled and dried, is used in construction, sculpture, stationery and, in the noble varieties of colored alabaster, as a decorative stone
- 11. OBSIDIAN • Obsidian is an igneous rock that is generated due to the rapid cooling of magma brought to the surface by volcanic eruptions. It is used to make necklaces and precious weapon points.
- 12. ROCK SALT
- 13. PUMICE STONE • Pumice is an igneous explosive rock,very light for the very high porosity. It is the only rock that floats in water. It is used in cosmetics (known as pumice stone) and in the industrial laundry (stone wash). The building industry uses it as an acoustic and thermal insulation