Filters








406 Hits in 2.0 sec

Dafny: Statically Verifying Functional Correctness [article]

Rachel Gauci
2014 arXiv   pre-print
This report presents the Dafny language and verifier, with a focus on describing the main features of the language, including pre- and postconditions, assertions, loop invariants, termination metrics,  ...  Examples of Dafny code are provided to illustrate the use of each feature, and an overview of how Dafny translates programming code into a mathematical proof of functional verification is presented.  ...  Section 4 is more literature-oriented, with references to good resources for getting started with Dafny and and a mention of similar specification languages.  ... 
arXiv:1412.4395v1 fatcat:ej7xuj3vwbh5dfvbnud75z5kxi

Using Dafny, an Automatic Program Verifier [chapter]

Luke Herbert, K. Rustan M. Leino, Jose Quaresma
2012 Lecture Notes in Computer Science  
The key language constructs, and various system limits, are illustrated through the development of a simple Dafny program.  ...  These lecture notes present Dafny, an automated program verication system that is based on the concept of dynamic frames and is capable of producing .NET executables.  ...  Acknowledgments We are indebted to the reviewers, who gave a lot of themselves to take us through various drafts of these lecture notes. Thank you!  ... 
doi:10.1007/978-3-642-35746-6_6 fatcat:haqtso2chjfi7d7aydebidsofy

Mechanised Verification Patterns for Dafny [chapter]

Gudmund Grov, Yuhui Lin, Vytautas Tumas
2016 Lecture Notes in Computer Science  
In previous work, we have developed a tactic language for Dafny, where users can encode their verification patterns and re-apply them for several proof tasks [16] .  ...  In Dafny, the program text is used to both specify and implement programs in the same language [24] .  ...  This tactic language is a meta-language for Dafny, where evaluation of a tactic works at the Dafny level: it takes a Dafny program with tactics and tactic applications, evaluates the applications and produces  ... 
doi:10.1007/978-3-319-48989-6_20 fatcat:4dcra7l3jndzxpigi6clumja7i

Guided Fast Local Search for speeding up a financial forecasting algorithm

Ming Shao, Dafni Smonou, Michael Kampouridis, Edward Tsang
2014 2014 IEEE Conference on Computational Intelligence for Financial Engineering & Economics (CIFEr)  
Guided Local Search is a powerful meta-heuristic algorithm that has been applied to a successful Genetic Programming Financial Forecasting tool called EDDIE.  ...  This paper presents an attempt to deal with this issue by combining Guided Local Search with Fast Local Search, an algorithm that has shown in the past to be able to significantly reduce the computational  ...  This paper presented work on the application of Fast Local Search (FLS) algorithm to a meta-heuristic called Guided Local Search (GLS), which was originally applied to a Genetic Programming (GP) financial  ... 
doi:10.1109/cifer.2014.6924091 dblp:conf/cifer/ShaoSKT14 fatcat:q66ac4thurghnpvsfpm6ql3jkm

Signatures for Solar Axions/WISPs [article]

Konstantin Zioutas, Theodoros Vafeiadis, Mary Tsagri, Yannis K Semertzidis, Thomas Papaevangelou, Theopisti Dafni, Vassilis Anastassopoulos
2010 arXiv   pre-print
We present atypical axion signatures, which depict solar axions with a rest mass max ~17 meV/c2. Then, the Sun has been for decades the overlooked harbinger of new particle physics.  ...  The atmospheric temperature, instead of decreasing, starts rising again, up to 1-2 MK, and this all of a sudden within only ∼100 km.  ...  B 2 , as derived from a total number of 1392 sunspots [10, 11] . The measurements were performed from 1992 to 2009. The red line shows the B 2 -dependence as a guide.  ... 
arXiv:1011.0629v1 fatcat:qkgayic7jbdkhfo7huieunhu6a

Music and the political: a dialogue with Martin Stokes

Dafni Tragaki, Martin Stokes
2019 rast müzikoloji dergisi  
I had a bit of a head start, coming out of my PhD work, with its own quite heavy (anthropological) investment in Bourdieu and in the Writing Culture debates.  ...  On the other hand, this is also how it gets entangled with authoritarianism -one of Michael Herzfeld's key points.  ... 
doi:10.12975/pp2181-2186 fatcat:5f2tbpudtzcyfkydlm4lkm56gm

SPATIAL FLOWER PARAMETERS AND INSECT SPATIAL VISION

A. DAFNI, M. LEHRER, P. G. KEYAN
2007 Biological Reviews  
The inner surface of optically free deep flowers is often equipped with nectar guides (Sprengel, 1793), and additional guidance is provided by odour cues (Lex, 1954; Dafni & Werker, 1982), as well as by  ...  How does a nectar guide actually succeed in guiding the pollinator to the reward?  ... 
doi:10.1111/j.1469-185x.1997.tb00014.x fatcat:7hnxveibingy5n6k6kxw2tghzy

SPATIAL FLOWER PARAMETERS AND INSECT SPATIAL VISION

A. DAFNI, M. LEHRER, P. G. KEVAN
1997 Biological Reviews  
The inner surface of optically free deep flowers is often equipped with nectar guides (Sprengel, 1793), and additional guidance is provided by odour cues (Lex, 1954; Dafni & Werker, 1982), as well as by  ...  How does a nectar guide actually succeed in guiding the pollinator to the reward?  ... 
doi:10.1017/s0006323196005002 fatcat:kkgm4kh445adpihx66l5nxi6bu

Relations of Authority and Submission through Dance during Wedding Festivity

Sofia Garifallopoulou arifallopoulou, Dafni Anastasia Filippou, Stamatis Chrysis, Koupani Aikaterini
2016 Mediterranean Journal of Social Sciences  
the wedding ceremony, and particularly with the traditional dancing.  ...  was to investigate and explore the developing relationships based on power/hegemony, inferiority and equality between the newlyweds' families of different ethnic groups during the festivities connected with  ...  It is then the turn of newlyweds' parents to dance with their children. So, the groom's mother starts the bride dancing with "Syrtos" and her boy with "Tsamikos".  ... 
doi:10.5901/mjss.2016.v7n2s1p395 fatcat:4cc5iql5u5bhdezd7q7xmfiily

Floral temperature patterns can function as floral guides

Michael J. M. Harrap, Natalie Hempel de Ibarra, Heather M. Whitney, Sean A. Rands
2020 Arthropod-Plant Interactions  
This shows that temperature patterns alone can function as a floral guide, but with reduced efficiency.  ...  Furthermore, how combined patterns (using multiple signalling modalities) affect floral guide function has only been investigated in a few modality combinations.  ...  We are grateful to Ed Straw and Cara Doyle for assistance in the laboratory, and Nathan Masters for advice with spectrometry.  ... 
doi:10.1007/s11829-020-09742-z pmid:32215113 pmcid:PMC7073333 fatcat:p4ezwktxh5b55cqzgagkv4bzji

Indoor Vertical Farming in the Urban Nexus Context: Business Growth and Resource Savings

Dafni Despoina Avgoustaki, George Xydis
2020 Sustainability  
In recent years, a new urban environment in the large metropolitan areas, the so-called "megacities", has emerged.  ...  Consistent with similar studies, this research also confirms that IUVF is much more profitable for investors, saving significant resources compared to GHs.  ...  Another objective was to compare the two cultivation methods from a resource-conserving perspective with the aim of developing a case study to act as a guide for private funds, presenting various investments  ... 
doi:10.3390/su12051965 fatcat:mpeysgiscbdczodxq7z4fmsk3u

Scattering and dip angle decomposition based on subsurface offset extended wave-equation migration

Raanan Dafni, William W. Symes
2016 Geophysics  
It differs from the well-studied smile-like response usually associated with reflections in the dip domain.  ...  In addition to the commonly used decomposition of the scattering angle, the methodology associates the wave-equation migration with dip-domain images as well.  ...  Trace data were computed for 161 shots located on the surface, starting from 6000 m with spacing of 50 m.  ... 
doi:10.1190/geo2015-0528.1 fatcat:5nwz3pf44ncx3mencfpzry7wli

EngagedScholarship@CSU Program Verification of FreeRTOS Using Microsoft Dafny Program Verification of FreeRTOS using Microsoft Dafny

Matthew Matias, Matthew Matias
2010 unpublished
Despite the benchmark claims, Dafny may require various lemmas to guide the theorem prover.  ...  While this starts with a specification, an implementation is usually a refinement step after creating a formal specification.  ...  := waitingList ; 27 t a s k S u s p e n d I n v a r i a n t ( task ); 28 29 delayList . remove ( task ); 30 g_delayList := delayList ; 31 t a s k S u s p e n d I n v a r i a n t ( task ); IISc's  ... 
fatcat:o6brfh7mdbbulm5gdkn2edz2sy

Combining different meta-heuristics to improve the predictability of a Financial Forecasting algorithm

Babatunde Aluko, Dafni Smonou, Michael Kampouridis, Edward Tsang
2014 2014 IEEE Conference on Computational Intelligence for Financial Engineering & Economics (CIFEr)  
In this paper, we implemented and analyzed a hyper-heuristic framework on three meta-heuristics namely Simulated Annealing, Tabu Search, and Guided Local Search, which had successfully been applied in  ...  the past to a Financial Forecasting algorithm called EDDIE.  ...  As it can be observed from Fig. 1 , the tree starts with an ifthen-else as the root, continues with a Boolean or a logic operator as its first branch and finally a VarConstructor which takes as children  ... 
doi:10.1109/cifer.2014.6924092 dblp:conf/cifer/AlukoSKT14 fatcat:uye2sveztbh47oziywqtuzpwqa

Lack of Truth-Telling in Palliative Care and Its Effects among Nurses and Nursing Students

Ines Testoni, Michael Alexander Wieser, Dafni Kapelis, Sara Pompele, Marino Bonaventura, Robert Crupi
2020 Behavioral Sciences  
This paper considers the issue of truth-telling in the communicative problems of nurses and students of nursing with terminally ill patients.  ...  A qualitative study was realized, involving 47 participants, both nurses (25) and nursing students (22), working in palliative care units or in associations of volunteers for the assistance of oncological  ...  In order to get as close as possible to the participants' perspective, the IPA follows two processes: People are asked to make sense of their experiences through a detailed narration guided by the researcher  ... 
doi:10.3390/bs10050088 pmid:32403378 pmcid:PMC7287675 fatcat:rn4owumn2zdgjafinpr2cutaiq
« Previous Showing results 1 — 15 out of 406 results