Search results for "Java"
showing 10 items of 425 documents
Välimuistit Java EE:n olio-relaatiosovelluskehysten yhteydessä
2012
Järvinen, Marko Terho Tapani Välimuistit Java EE:n olio-relaatiosovelluskehysten yhteydessä Jyväskylä: Jyväskylän yliopisto, 2012, 27 s. Tietojärjestelmätiede, kandidaatintutkielma Ohjaaja: Hirvonen, Pertti ORM-tason välimuisteja kannattaa vakavasti harkita osaksi Java EE-sovellusten arkkitehtuuria. Niiden avulla voidaan saada aikaan suuria parannuksia järjes-telmän suorituskykyyn ja vähentää alkuperäiseen tietolähteeseen kohdistuvaa kuormaa. Tutkielmassa kerrotaan lyhyesti, mitä Java EE:n olio-relaatiosovelluskehysten yhteydessä käytettävät välimuistit ovat ja listataan tarjolla olevia avoimen lähdekoodin välimuistitoteutuksia. Ennen välimuistien esittelyä käydään läpi taustalla olevat kes…
The Impact of Java Applications at Microarchitectural Level from Branch Prediction Perspective
2009
The portability, the object-oriented and distributed programming models, multithreading support and automatic garbage collection are features that make Java very attractive for application developers. The main goal of this paper consists in pointing out the impact of Java applications at microarchitectural level from two perspectives: unbiased branches and indirect jumps/calls, such branches limiting the ceiling of dynamic branch prediction and causing significant performance degradation. Therefore, accurately predicting this kind of branches remains an open problem. The simulation part of the paper mainly refers to determining the context length influence on the percentage of unbiased bran…
P2PRealm - Peer-to-Peer Network Simulator
2006
Peer-to-peer realm (P2PRealm) is an efficient peer-to-peer network simulator for studying algorithms based on neural networks. In contrast to many simulators, which emphasize on detailed network simulation, the speed of simulation in P2PRealm is essential, because neural networks require a time consuming training phase. Efficiency has been obtained by optimizing training loops inside the simulator, using Java native interface (JNI) as well as distributing the simulator to hundreds of workstations using the P2PDisCo platform. In this paper we describe the architecture of P2PRealm and its input/output interfaces. Also, we present the mechanisms used for internally optimizing the implementatio…
Pellet: A Practical OWL-DL Reasoner
2007
In this paper, we present a brief overview of Pellet: a complete OWL-DL reasoner with acceptable to very good performance, extensive middleware, and a number of unique features. Pellet is the first sound and complete OWL-DL reasoner with extensive support for reasoning with individuals (including nominal support and conjunctive query), user-defined datatypes, and debugging support for ontologies. It implements several extensions to OWL-DL including a combination formalism for OWL-DL ontologies, a non-monotonic operator, and preliminary support for OWL/Rule hybrid reasoning. Pellet is written in Java and is open source.
XTDS and SPVIEW: Graphical tools for the analysis and simulation of high-resolution molecular spectra
2008
International audience; XTDS is a Java front-end to the different programs implementing the tensorial formalism developed in the Dijon group [see for instance: V. Boudon, J.-P. Champion, T. Gabard, M. Loëte, F. Michelot, G. Pierre, M. Rotger, Ch. Wenger, M. Rey, J. Mol. Spectrosc. 228 (2004) 620–634 ]. It allows the simulation and analysis of polyad systems for molecules of various symmetries (Td and Oh spherical tops like CH4 and SF6, C2v and C4v quasi-spherical tops like SO2F2 and SF5Cl, D2h molecules like C2H4). SPVIEW is a multiplatform Java application that allows graphical assignment of high-resolution molecular spectra. It is possible to load, display and manipulate experimental and …
Virtual Vehicles Manager: a java virtual reality environment for distributed multi vehicles dynamics control and simulation
2007
This paper describes a lightweight, full portable software environment for development, simulation and control of vehicles. All the software is developed in Java so there are many advantages as portability, multithreading distribution etc. This environment simulates the vehicles integrating their non-linear differential equation systems. The equation systems can easily be modified changing that representation class so it is easy to manage different vehicles. The scenario is displayed as a 3D virtual reality environment in which all the objects are rendered using a combination of 3 d primitive. It is also possible the use of pre-built 3 d objects loaded from files in 3 ds format. The softwar…
ETAT: Expository Text Analysis Tool.
2002
Qualitative methods that analyze the coherence of expository texts not only are time consuming, but also present challenges in collecting data on coding reliability. We describe software that analyzes expository texts more rapidly and produces a notable level of objectivity. ETAT (Expository Text Analysis Tool) analyzes the coherence of expository texts. ETAT adopts a symbolic representational system, known as conceptual graph structures. ETAT follows three steps: segmentation of a text into nodes, classification of the unidentified nodes, and linking the nodes with relational arcs. ETAT automatically constructs a graph in the form of nodes and their interrelationships, along with various a…
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…
A New Environment for Distributed Multiple Vehicles Dynamics Control and Simulation
2007
Although there are many simulation softwares, the 3D multi-vehicle field needs further study. This paper describes a lightweight, full portable software environment for development, simulation and control of vehicles. This environment simulates ground wheeled vehicles and their environment. Multi vehicle study can be done adding the vehicle mathematical model and the 3D graphical model. The scenario is displayed as a 3D virtual reality environment in which all the objects are rendered using a combination of 3D primitive and/or pre-built 3D objects loaded from file. Since the software is made up of a set of multi-treading object-oriented Java classes, there are many advantages as portability…
Jason Intentional Learning: An Operational Semantics
2013
This paper introduces an operational semantics for defining Intentional Learning on Jason, the well known Java-based implementation of AgentSpeak(L). This semantics enables Jason to define agents capable of learning the reasons for adopting intentions based on their own experience. In this work, the use of the term Intentional Learning is strictly circumscribed to the practical rationality theory where plans are predefined and the target of the learning processes is to learn the reasons to adopt them as intentions. Top-Down Induction of Logical Decision Trees (TILDE) has proved to be a suitable mechanism for supporting learning on Jason: the first-order representation of TILDE is adequate t…