نتایج جستجو برای: prophet hood

تعداد نتایج: 4848  

2015
Fan Long Martin Rinard

We present Prophet, a novel patch generation system that learns a probabilistic model over candidate patches from a database of past successful patches. Prophet defines the probabilistic model as the combination of a distribution over program points based on defect localization algorithms and a parameterized log-linear distribution over modification operations. It then learns the model paramete...

2016
Fuquan Zhang Inwhee Joe Demin Yunfei Liu

Due to its characteristics such as long communication delay, high dynamic topology, sparse distribution of nodes and frequent link break, routing are the key research issues of delay tolerant networks. Prophet algorithm forwards the packets to the node with maximum probability of successful delivery by recording history information of nodes encounter. Prophet reduces the invalid copy of message...

2017
Aviad Rubinstein Sahil Singla

We introduce a novel framework of Prophet Inequalities for combinatorial valuation functions. For a (non-monotone) submodular objective function over an arbitrary matroid feasibility constraint, we give an O(1)-competitive algorithm. For a monotone subadditive objective function over an arbitrary downward-closed feasibility constraint, we give an O(log n log r)-competitive algorithm (where r is...

2001
David Assaf Larry Goldstein Ester Samuel-Cahn

All classical “prophet inequalities” for independent random variables hold also in the case where only a noise corrupted version of those variables is observable. That is, if the pairs (X1, Z1), . . . , (Xn, Zn) are independent with arbitrary, known joint distributions, and only the sequence Z1, . . . , Zn is observable, then all prophet inequalities which would hold if the X’s were directly ob...

Journal: :Industrial health 2007
Rong Fung Huang Hong Da Chen Chien-Hsiung Hung

The effects of the walk-by motion and sash movement on the containment leakage of an air curtain-isolated fume hood were evaluated and compared with the results of a corresponding conventional fume hood. The air curtain was generated by a narrow planar jet issued from the double-layered sash and a suction slot-flow arranged on the floor of the hood just behind the doorsill. The conventional fum...

Journal: :Robotics 2015
Daniel Saur Kurt Geihs

This paper presents the results of the project IMPERA (Integrated Mission Planning for Distributed Robot Systems). The goal of IMPERA was to realize an extraterrestrial exploration scenario using a heterogeneous multi-robot system. The main challenge was the development of a multi-robot planning and plan execution architecture. The robot team consists of three heterogeneous robots, which have t...

Khatereh Moharramkhani, Mohammad Hossein Tavakoli

Influence of a vent hood at the exit of exhaust flue gas and flue baffles in the firetube on the temperature and flow fields of a gas tank water heater, as well as thestructure and amount of heat transferred to the water tank has been studiednumerically using two-dimensional steady state finite element simulation.Observations show that without a vent hood, there is a downward gas flow in theflu...

2014
Jia-Kun CHEN Rong Fung HUANG

A novel design of range hood, which was termed the inclined quad-vortex (IQV) range hood, was examined for its flow and containment leakage characteristics under the influence of a plate sweeping across the hood face. A flow visualization technique was used to unveil the flow behavior. Three characteristic flow modes were observed: convex, straight, and concave modes. A tracer gas detection met...

Journal: :Industrial health 2012
Jia-Kun Chen Rong Fung Huang Pei-Yi Hsin Ching Min Hsu Chun-Wann Chen

The flow and leakage characteristics of the air-curtain fume hood under high temperature operation (between 100°C and 250°C) were studied. Laser-assisted flow visualization technique was used to reveal the hot plume movements in the cabinet and the critical conditions for the hood-top leakage. The sulfur hexafluoride tracer-gas concentration test method was employed to examine the containment s...

پایان نامه :دانشگاه بین المللی امام خمینی (ره) - قزوین - دانشکده علوم پایه 1390

abstract: the present study is about prophet ishmael, some parts of his life; his personality in the quran and the bible; and the comparison of the content of these two religious books. compilation of the study has been done with a new perspective and new presentation approach. since prophets have been human beings’ role model and their life has been a perfect example for humanity in all ages,...

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