نتایج جستجو برای: aggregation function

تعداد نتایج: 1268526  

1995
Satinder P. Singh Tommi Jaakkola Michael I. Jordan

It is widely accepted that the use of more compact representations than lookup tables is crucial to scaling reinforcement learning (RL) algorithms to real-world problems. Unfortunately almost all of the theory of reinforcement learning assumes lookup table representations. In this paper we address the pressing issue of combining function approximation and RL, and present 1) a function approx-im...

Journal: :Blood 1971
J W Davis P E Phillips

Since imidazole buffers have been used in platelet function tests and the compound has been reported to alter several biochemical activities of platelets, it seemed important to determine whether imidazole influenced platelet aggregation. ADP-induced, collagen-induced, and norepinephrine-induced platelet aggregations were tested in platelet-rich plasma by turbidimetric techniques. Glass beadind...

1994
Satinder P. Singh Tommi S. Jaakkola Michael I. Jordan

It is widely accepted that the use of more compact representations than lookup tables is crucial to scaling reinforcement learning RL algorithms to real world problems Unfortunately almost all of the theory of reinforcement learning assumes lookup table representa tions In this paper we address the pressing issue of combining function approximation and RL and present a function approx imator ba...

Journal: :IEICE Transactions 2012
Yonggang Huang Dianfu Ma Jun Zhang Yongwang Zhao

We propose a novel query-dependent feature aggregation (QDFA) method for medical image retrieval. The QDFA method can learn an optimal feature aggregation function for a multi-example query, which takes into account multiple features and multiple examples with different importance. The experiments demonstrate that the QDFA method outperforms three other feature aggregation methods. key words: C...

پایان نامه :0 1391

uncertainty in the financial market will be driven by underlying brownian motions, while the assets are assumed to be general stochastic processes adapted to the filtration of the brownian motions. the goal of this study is to calculate the accumulated wealth in order to optimize the expected terminal value using a suitable utility function. this thesis introduced the lim-wong’s benchmark fun...

ژورنال: علوم آب و خاک 2002
سلامی, حبیب ‌الله , کیانی ‌راد, علی ,

This study uses the Generalized Composite Commodity Theorem (GCCT) to investigate the consistency of aggregating major crop products in studying producer’s behaviour in Iran. The results show that all crop products, except corn, soybean, and melon can consistently be grouped into cereals, oil seeds, pulses, and vegetable composite commodities. In addition, the results testing the hypothesis of ...

2003
Ji Li Ben Leong Karen Sollins

We present an algorithm for implementing aggregation/broadcast over existing Distributed Hash Tables (DHTs). Our algorithm builds an aggregation tree in a bottom-up fashion by mapping nodes to their parents in the aggregation tree with pre-determined function and maintains it using soft-state. We believe that the aggregation/broadcast function is a basic service that should be layered over exis...

2008
Thomas M. Stoker

This paper investigates the use of individual cross section data to describe macro functions. Necessary and sufficient conditions (denoted AS) are found for OLS slope coefficients from a cross section to consistently estimate the first derivatives of the macro function. AS embodies both sets of aggregation assumptions known; linear aggregation and sufficient statistics , and thus represents gen...

2018

The SDSN-Aggregation: The SDSN aggregation method uses a combination of methods ”Brooks-Iyengar algorithm” and ”Witness based approach for data fusion assurance” to achieve the aggregation. The aggregation method should work for multiple data types and for different densities of the network. The SDSN-aggregation is event-based, it is triggered on an aggregation request by another node or when n...

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