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Dynamic Tasks Verification with Quasar [chapter]

Sami Evangelista, Claude Kaiser, Christophe Pajault, Jean Francois Pradat-Peyre, Pierre Rousseau
2005 Lecture Notes in Computer Science  
The inclusion of dynamic tasks modelisation in QUASAR, a tool for automatic analysis of concurrent programs, extends its applicative usefulness.  ...  This paper presents briefly Ada dynamic tasks semantic and dependences and then it explains the choice of an efficient generic modeling pattern.  ...  Section 3 presents the choices that we made to model the dynamic tasks together with the static tasks in QUASAR and describes the Petri nets library patterns corresponding to dynamic allocation and to  ... 
doi:10.1007/11499909_8 fatcat:3gjq7wrjlrd43nyceiabrgnjma

Verifying linear time temporal logic properties of concurrent Ada programs with quasar

S. Evangelista, C. Kaiser, J. F. Pradat-Peyre, P. Rousseau
2004 ACM SIGAda Ada Letters  
In this paper we present an original and useful way for specifying and verifying temporal properties of concurrent programs with our tool named Quasar.  ...  Quasar is based on ASIS and uses formal methods (model checking).  ...  Using CTL will require to adapt some techniques for reducing the cost of the verification process [10] ; • extend the scope of analyzable Ada constructions, such as tagged types or dynamic task creation  ... 
doi:10.1145/992211.958424 fatcat:a4s7fgr3fza43fdaydm7wlcuhm

Quasar: A New Tool for Concurrent Ada Programs Analysis [chapter]

Sami Evangelista, Claude Kaiser, Jean-François Pradat-Peyre, Pierre Rousseau
2003 Lecture Notes in Computer Science  
We present a new tool, Quasar, which is based on ASIS and which uses fully the concept of patterns.  ...  We demonstrate the usefulness of Quasar by analyzing several variations of a non trivial concurrent program.  ...  The next steps have several purposes: extending the graphical interface and easing its use by practitioners; extending the scope of analyzable Ada constructions, such as tagged types or dynamic tasking  ... 
doi:10.1007/3-540-44947-7_12 fatcat:lxxub6g42bdkngntqzmxb5a2qa

Token-level Dynamic Self-Attention Network for Multi-Passage Reading Comprehension

Yimeng Zhuang, Huadong Wang
2019 Proceedings of the 57th Annual Meeting of the Association for Computational Linguistics  
Besides, convolutional layers are combined with the dynamic self-attention to enhance the model's capacity of extracting local semantic.  ...  In this paper, we introduce the Dynamic Self-attention Network (Dyn-SAN) for multi-passage reading comprehension task, which processes cross-passage information at token-level and meanwhile avoids substantial  ...  Token-level Dynamic Self-attention Network This section introduces the application of our proposed Dynamic Self-attention Network (Dyn-SAN) on the multi-passage RC task.  ... 
doi:10.18653/v1/p19-1218 dblp:conf/acl/ZhuangW19 fatcat:u63tgoah3jfujaj2qmpfpgugka

High Level Petri Nets Analysis with Helena [chapter]

Sami Evangelista
2005 Lecture Notes in Computer Science  
Helena can be used for the on-the-fly verification of state properties, i.e., properties that must hold in all the reachable states of the system, and deadlock freeness.  ...  In its current state, Quasar does not perform reachability analysis but interfaces with another tool which realizes this task.  ...  The main task of Quasar is to perform automatic abstraction (or slicing) of a program and to translate it into a colored Petri net.  ... 
doi:10.1007/11494744_26 fatcat:m4ma4hqkezfxtdamgib4spqxja

Temporal skeletons for verifying time

Gustaf Naeser, Kristina Lundqvist, Lars Asplund
2005 Proceedings of the 2005 annual ACM SIGAda international conference on Ada The Engineering of Correct and Reliable Software for Real-Time & Distributed Systems using Ada and Related Technologies - SigAda '05  
The timing skeleton is then automatically refined with verification detail, and then hidden for the user, transformed into the notation of a verification tool.  ...  The kernel supports preemption, dynamic priorities and multiple processors.  ...  In [13] the Quasar tool [12] is used to verify concurrent programs. Quasar uses ASIS, the Ada Semantic Interface Specification, to create a model used in the verification.  ... 
doi:10.1145/1103846.1103854 dblp:conf/sigada/NaeserLA05 fatcat:awaa2safajcxhc7bgnpwlw2oay

Temporal skeletons for verifying time

Gustaf Naeser, Kristina Lundqvist, Lars Asplund
2005 ACM SIGAda Ada Letters  
The timing skeleton is then automatically refined with verification detail, and then hidden for the user, transformed into the notation of a verification tool.  ...  The kernel supports preemption, dynamic priorities and multiple processors.  ...  In [13] the Quasar tool [12] is used to verify concurrent programs. Quasar uses ASIS, the Ada Semantic Interface Specification, to create a model used in the verification.  ... 
doi:10.1145/1104011.1103854 fatcat:pbjqnroqdvfjlj3aet7j2woogq

4D VMAT planning and verification technique for dynamic tracking using a direct aperture deformation (DAD) method

Yongqian Zhang, Yong Yang, Weihua Fu, Xiang Li, Tianfang Li, Dwight E. Heron, M. Saiful. Huq
2017 Journal of Applied Clinical Medical Physics  
Plan verification was implemented by delivering the 4D VMAT plans on a moving QUASAR TM phantom driven with patient-specific respiratory curves.  ...  For the verification measurements, the average gamma index pass rate was 98.6% and 96.5% for phantom 3D and 4D VMAT plans with 3%/3 mm criteria.  ...  Fourth, plan verification was implemented by delivering the 4D VMAT plans on a moving QUASAR TM phantom driven with patientspecific respiratory curves.  ... 
doi:10.1002/acm2.12053 pmid:28300367 pmcid:PMC5466079 fatcat:hb4qknjbazcyjpljjrkxkbvbse

A Q-gram Filter for Local Alignment in Large Genomic Database

Decai Sun, Xiaoxia Wang
2016 International Journal of Hybrid Information Technology  
Fast and exact searching for sequences similar to a query sequence in genomic databases remains a challenging task in molecular biology.  ...  In [12, 14] , the pattern is split into j pieces, and hence at least one of these pieces which has at most kj   errors with the pattern's one must appear in the true matches. 2) q-gram counting approach  ...  The old methods for aligning two sequences are those based on dynamic programming [2] .  ... 
doi:10.14257/ijhit.2016.9.1.19 fatcat:al6ygd4a4ngnxbbx2a5f2h7wnu

The Italian contribution to the Gaia data processing and archiving

Michele Martino, Armando Ciampolini, Rosario Messineo, Angelo Mulone, Enrico Pigozzi, Vilma Icardi, Filomena Solitro, Marco M. Castronuovo, Mario G. Lattanzi, Roberto Morbidelli, Ronald Drimmel, Maria Sarasso (+4 others)
2010 Proceedings of the International Astronomical Union  
tasks.  ...  The primary objective of DPCT is to provide the infrastructure and operations support to the Astrometric Verification Unit (AVU) activities for CU3 and the Italian participation to the Gaia data processing  ...  Martino et al. data processing tasks.  ... 
doi:10.1017/s1743921311021132 fatcat:xwnroxcuuzefnmfbjwtdnbvqzi

Multiwavelength studies of extragalactic jets structure

A.V. Bogdan, V.V. Marchenko, B.I. Hnatyk
2013 Astronomical School's Report  
A detailed study of extragalactic jets structure in all wavelengths is an important task for modeling the different astrophysical processes that take place in jets.  ...  We analyze the core-dominated quasar 3C 273 using the Chandra, HST and VLA data. The attempt to resolve the perpendicular jet structure is made.  ...  Each energy band indicates about particles with different energy in the jet and analysis of this regions help as to understand dynamic of jet.  ... 
doi:10.18372/2411-6602.09.2142 fatcat:kipv7v4tora6ldyzidxnleaeca

The exciting future of (sub-)millimeter interferometry: ALMA [article]

V. Casasola and J. Brand (INAF-IRA Bologna and Italian ALMA Regional Centre)
2010 arXiv   pre-print
The ALMA Commissioning and Science Verification phase is currently in course, preparing the path for Early Science.  ...  With unprecedented sensitivity, resolution, and imaging capability, ALMA will explore the (sub-)mm Universe, one of astronomy's last frontiers.  ...  With ALMA, instead, we will easily map the gas in quasar hosts.  ... 
arXiv:1010.3645v1 fatcat:odir7q56onhfhja2qtjdxhvm4u

Development of accurate classification of heavenly bodies using novel machine learning techniques

Michał Wierzbiński, Paweł Pławiak, Mohamed Hammad, U. Rajendra Acharya
2021 Soft Computing - A Fusion of Foundations, Methodologies and Applications  
The classification of these objects is a challenging task for astronomers.  ...  We have used 21 classifiers to develop an accurate and robust classification with fivefold cross-validation strategy.  ...  Their trained model is able to classify star, quasar and galaxy with high accuracy.  ... 
doi:10.1007/s00500-021-05687-4 fatcat:eyv4lbanc5gzxkgsw5xzi2qc6q

PO-0869: Automated cross-modal 3D contouring algorithm for prostate 3D ultrasound-CT co-registered images

D. Ermacora, S. Pesente, F. Pascoli, S. Raducci, R. Mauro, I. Abu Rumeileh, F. Verhaegen, D. Fontanarosa
2013 Radiotherapy and Oncology  
Materials and Methods: A patient receiving whole brain RT over ten fractions with 2D setup verification was investigated retrospectively.  ...  POSTER: PHYSICS TRACK: IMAGING: FOCUS ON QA AND TECHNICAL ASPECTS PO-0871 Beam positioning accuracy of dynamic tumor-tracking during arc irradiation with gimbaled x-ray head T. Ono 1 , Y.  ... 
doi:10.1016/s0167-8140(15)33175-3 fatcat:lzbbsinzvjbbjpoluqsqru4744

Accuracy Comparison of 4D Computed Tomography (4DCT) and 4D Cone Beam Computed Tomography (4DCBCT)

Tzu-Cheng Lee, Stephen R. Bowen, Sara St. James, George A. Sandison, Paul E. Kinahan, Matthew J. Nyflot
2017 International Journal of Medical Physics Clinical Engineering and Radiation Oncology  
The ability of respiratory-correlated fan beam CT (4DCT) and respiratory-correlated cone beam CT (4DCBCT) to accurately estimate tumor volume is critical to accurate dosimetry and treatment verification  ...  These findings may be helpful for improving the definition of internal target and planning target volume margins, and extracting quantitative information from on-board treatment verification imaging.  ...  The motion of the Quasar phantom is one dimensional (superior-inferior) and can be programmed using sinusoidal breathing traces or representative patient traces distributed with the phantom.  ... 
doi:10.4236/ijmpcero.2017.63029 fatcat:gedq2fnii5ffzikqfvqyth6zgi
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