Search results for "Python"
showing 10 items of 160 documents
Finding Invariants of Group Actions on Function Spaces, a General Methodology from Non-Abelian Harmonic Analysis
2008
In this paper, we describe a general method using the abstract non-Abelian Fourier transform to construct “rich” invariants of group actions on functional spaces.
Enabling robotic adaptive behaviour capabilities for new industry 4.0 automated quality inspection paradigms
2020
The seamless integration of industrial robotic arms with server computers, sensors and actuators can revolutionise the way in which automated non-destructive testing (NDT) is performed and conceived. Achieving effective integration and realising the full potential of robotic systems presents significant challenges, since robots, sensors and end-effector tools are often not necessarily designed to be put together and form a holistic system. This paper presents recent breakthroughs, opening up new scenarios for the inspection of product quality in advanced manufacturing. Many years of research have brought to software platforms the ability to integrate external data acquisition instrumentatio…
ViziQuer: A Tool to Explore and Query SPARQL Endpoints
2011
The presented tool uses a novel approach to explore and query a SPARQL endpoint. The tool is simple to use as a user needs only to enter an address of a SPARQL endpoint of one's interest. The tool will extract and visualize graphically the data schema of the endpoint. The user will be able to overview the data schema and use it to construct a SPARQL query according to the data schema. The tool can be downloaded from http://viziquer.lumii.lv. There is also additional information and help on how to use it in practice.
Combining OWL Ontologies Using -Connections
2006
The standardization of the Web Ontology Language, OWL, leaves (at least) two crucial issues for Web-based ontologies unsatisfactorily resolved, namely how to represent and reason with multiple distinct, but linked ontologies, and how to enable effective knowledge reuse and sharing on the Semantic Web. In this paper, we present a solution for these fundamental problems based on ℇ-Connections. We aim to use ℇ-Connections to provide modelers with suitable means for developing Web ontologies in a modular way and to provide an alternative to the owl:imports construct. With such motivation, we present in this paper a syntactic and semantic extension of the Web Ontology language that covers ℇ-Conn…
Heuristics for a Real-World Mail Delivery Problem
2011
We are solving a mail delivery problem by combining exact and heuristic methods. The problem is a tactical routing problem as routes for all postpersons have to be planned in advance for a period of several months. As for many other routing problems, the task is to construct a set of feasible routes serving each customer exactly once at minimum cost. Four different modes (car, moped, bicycle, and walking) are available, but not all customers are accessible by all modes. Thus, the problem is characterized by three interdependent decisions: the clustering of customers into districts, the choice of a mode for each district, and the routing of the postperson through its district. We present a t…
Galda futbola automatizācija ar mikrokontrolieri un oData
2016
“Galda futbola automatizācijā ar mikrokontrolieri un OData” ir lietu interneta (angliski – Internet of Things) sistēma, kas balstīta uz SAP HANA Cloud Platform tiešsaistes mākoņskaitļošanas sistēmas un SAPUI5 lietotnēm. Sistēmas mērķis ir uzskaitīt galda futbola spēles statistikas, izmantojot fiziskos sensorus, nodrošināt lietotājiem iespēju piereģistrēt savu vārdu statistikas uzkrāšanai, apskatīt kopējo spēļu statistiku un analīzi. Kopējā sistēmu apvieno sevī Python rakstītu galveno pārvaldītāju, kas strādā ar Raspberry Pi nolasot galda futbola spēles sensoru datus un nosūtot attiecīgo informāciju uz datubāzi, un trīs SAPUI5 sistēmas – galveno spēles kontrolieri, kas ļauj uzsākt spēles, no…
Lua Code: Security Overview and Practical Approaches to Static Analysis
2017
Lua is an interpreted, cross-platform, embeddable, performant and low-footprint language. Lua's popularity is on the rise in the last couple of years. Simple design and efficient usage of resources combined with its performance make it attractive for production web applications even to big organizations such as Wikipedia, CloudFlare and GitHub. In addition to this, Lua is one of the preferred choices for programming embedded and IoT devices. This context allows to assume a large and growing Lua codebase yet to be assessed. This growing Lua codebase could be potentially driving production servers and extremely large number of devices, some perhaps with mission-critical function for example i…
Procesu nodrošināšanas platforma
2022
Kvalifikācijas darbs apraksta Apdrošināšanas atlīdzību pieteikumu procesu nodrošināšanas sistēmu, kura sastāv no divām sistēmām: Apdrošināšanas atlīdzību pieteikumu reģistrācijas lietotnes un Apdrošināšanas atlīdzību pieteikumu formu validācijas un apstrādes sistēmas. Lietotne izmanto Apdrošināšanas atlīdzību pieteikumu formu validācijas un apstrādes sistēmas REST API, kas tiek lietots apdrošināšanas klientu jeb lietotnes lietotāju autentifikācijai, apdrošināšanas atlīdzību pieteikumu izveidei un izveidoto pieteikumu apskatei. Lietotne realizēta JavaScript valodā, izmantojot Vue.js ietvaru, formu validācijas un apstrādes sistēma papildināta ar lietotāju moduli, kas izstrādāts Python valodā,…
Laika rindu analīzes metodes akciju cenu prognozēšanā
2020
Bakalaura darba mērķis izpētīt laika rindu analīzes metožu pielietojuma iespējas akciju cenu analīzē un prognozēšanā, kā arī novērtēt dažāda veida modeļu izmantošanas potenciālu konkrēta uzņēmuma akciju cenu prognozēšanā. Darbā sniegts laika rindu analīzes un prognozēšanas metožu pārskats, laika rindu prognozēšanas problēmu situāciju izpēte. Apskatītās metodes kā ARIMA, ARIMAX, SARIMAX un VAR tika pielietotas uzņēmuma Volkswagen akciju cenu prognozēšanā, izmantojot datus par 2009. – 2019. gadu laika periodu. Lai ņemtu vērā kopējā tirgus tendences, modeļi tika papildināti ar diviem eksogēniem mainīgiem – uzņēmuma Porsche un uzņēmuma BMW akciju cenām par iepriekš minēto periodu. Prognozēšanas…
On constrained Volterra cubic stochastic operators
2020
We consider constrained Volterra cubic stochastic operators and construct several Lyapunov functions for the constrained Volterra cubic stochastic operators. We prove that such kind operators do no...