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تعداد نتایج: 931593 فیلتر نتایج به سال:
Many robotics applications involve motion planning with uncertainty. In this paper, we focus on path planning for planar systems by optimizing the probability of successfully arriving at a goal. We approach this problem with a modified version of the Path-of-Probability (POP) algorithm. We extend the POP algorithm to allow for a moving target and to optimize the number of steps to reach the goa...
Inferring the Internet PoP level maps is gaining interest due to its importance to many areas, e.g., for tracking the Internet evolution and studying its properties. We introduce DIMES’s Internet PoP-level connectivity maps, annotated with geographical information and created using a structural approach to automatically generate large scale PoP level maps. The generated PoP level maps dataset i...
This paper proposes an effective multi-objective differential evolution algorithm (MDES) to solve a permutation flow shop scheduling problem (PFSSP) with modified Dejong's learning effect. The proposed algorithm combines the basic differential evolution (DE) with local search and borrows the selection operator from NSGA-II to improve the general performance. First the problem is encoded with a...
We have created a new semantic tool called AstroConcepts, providing definitions of astronomical concepts present on Web pages. This tool is a Google Chrome plug-in that interrogates the Etymological Dictionary of Astronomy and Astrophysics, developed at Paris Observatory. Thanks to this tool, if one selects an astronomical concept on a web page, a popup window will display the definition of the...
Small-world phenomena were initially studied in the 1960s through a series of social network experiments, and are, as evidenced by the game “The six degrees of Kevin Bacon,” even part of our pop-culture. Recently, mathematicians and physicists have shown that most small-world phenomena are expected consequences of the mathematical properties of certain networks– known as small-world networks. I...
Enterprise Modelling in general, and Business Process Modelling in particular, have been used for decades for different purposes and with interesting results. However, a variety of problems can be identified in this context and it is difficult for many enterprises to leverage the full potential and benefits of these technologies. One of the most important problems in this sense is the lack of i...
As technology develops, the prevalence of conventional book dictionaries has slowly declined due to advancements in computer-mediated aids, such as online type-in dictionaries and program-installed pop-up aids. The goal of this study was to examine how technology ‘‘may” have changed the long-standing pedagogical practice of book dictionary usage by identifying the learning processes associated ...
Observational constraints on the primordial lithium abundance are important for the evaluation of the baryonic density of the universe. Its precise determination however suffers from uncertainties due to the possible depletion of this element inside the stars. Here we present and discuss new results on the lithium abundances in Pop II stars obtained with most recent stellar models including the...
Responding to computer-initiated notifications requires a shift in attention that disrupts the flow of work. The degree of cost associated with resuming the original task following interruption may be dependent upon such factors as the transition between tasks (was the worker able to consolidate his/her place in the main task before engaging in the interruption?) as well as the nature of the in...
In this modern epoch of Information technology we do have confrontations and dares up with scores of unusual sorts of tragedies or urgent situations from different state-of-affairs perspective and mostly in the enclosed or internal surroundings. Awareness and retort to such abrupt tragedies is decisive sequentially to look after possessions together with an individual existence. We analyzed her...
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