Estimating Price Elasticities with Theory-Based Priors Author(s): Alan L. Montgomery and Peter E. Rossi Source: Journal of Marketing Research‚ Vol. 36‚ No. 4‚ (Nov.‚ 1999)‚ pp. 413-423 Published by: American Marketing Association Stable URL: http://www.jstor.org/stable/3151997 Accessed: 22/07/2008 16:25 Your use of the JSTOR archive indicates your acceptance of JSTOR ’s Terms and Conditions of Use‚ available at http://www.jstor.org/page/info/about/policies/terms.jsp. JSTOR ’s Terms and Conditions
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Power System Fault Analysis 2.0 Introduction The fault analysis of a power system is required in order to provide information for the selection of switchgear‚ setting of relays and stability of system operation. A power system is not static but changes during operation (switching on or off of generators and transmission lines) and during planning (addition of generators and transmission lines). Thus fault studies need to be routinely performed by utility engineers (such as in the TNB). Faults
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304 IEEE COMMUNICATIONS LETTERS‚ VOL. 16‚ NO. 3‚ MARCH 2012 A Low Complexity MMSE for OFDM Systems over Frequency-Selective Fading Channels Tian-Ming Ma‚ Yu-Song Shi‚ and Ying-Guan Wang Abstract—Channel estimation is one of the key technologies in Orthogonal Frequency Division Multiplexing (OFDM) systems‚ which has received more and more consideration. A modified Minimum Mean Square Error (MMSE) is proposed and simulated by MATLAB over a frequency-selective fading channel. Comparing with
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A Social Networ k-Based Recommender System (SNRS) Jianming He and Wesley W. Chu Computer Science Department University of California‚ Los Angeles‚ CA 90095 jmhek@cs.ucla.edu‚ wwc@cs.ucla.edu Abstr act. Social influence plays an important role in product marketing. However‚ it has rarely been considered in traditional recommender systems. In this paper we present a new paradigm of recommender systems which can utilize information in social networks‚ including user preferences‚ item’s general acceptance
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Class XII Chapter 3 – Matrices Compiled By : OP Gupta [+91-9650 350 480 | +91-9718 240 480] Maths Exercise 3.1 Question 1: In the matrix ‚ write: (i) The order of the matrix (ii) The number of elements‚ (iii) Write the elements a13‚ a21‚ a33‚ a24‚ a23 Answer (i) In the given matrix‚ the number of rows is 3 and the number of columns is 4. Therefore‚ the order of the matrix is 3 × 4. (ii) Since the order of the matrix is 3 × 4‚ there are 3 × 4 = 12 elements in it. (iii)
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Contents 1. RYBCZYNSKI THEOREM ............................................................................................................................. 3 1.1 Theorem: ............................................................................................................................................. 3 1.1.1 Graphical Proof ............................................................................................................................ 3 1.1.2 Mathematical Proof .........
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Equivalence Theorem and assess the evidence bearing on it. The Ricardian Equivalence Theorem‚ developed by David Ricardo and advanced by Robert Barrow in the 19th century‚ suggests that taking into account the government budget constraint a budget deficit will have no effect on national saving- the sum of private and public saving‚ in an economy. In this essay I am going to explain the reasoning behind this‚ assess its likelihood and finally review evidence either supporting or opposing the theorem. In
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Sir Andrew John Wiles is a British mathematician born on April 11th‚ 1953. He is a Royal society Research Professor who specializes in number theory at Oxford University. He’s known for proving Fermat’s Last Theorem. Sir Wiles’ Life Story Andrew John Wiles was born on April 11th‚ 1953 to parents Maurice Frank Wiles‚ a Regius Professor of Divinity at Oxford University‚ and Patricia Wiles. He was born in Cambridge‚ England and went to King’s College and The Leys School. Wiles graduated from
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Gauss-Markov Theorem The Gauss-Markov Theorem is given in the following regression model and assumptions: The regression model (1) Assumptions (A) or Assumptions (B): Assumptions (A) Assumptions (B) E( If we use Assumptions (B)‚ we need to use the law of iterated expectations in proving the BLUE. With Assumptions (B)‚ the BLUE is given conditionally on Let us use Assumptions (A). The Gauss-Markov Theorem is stated below
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Little is known about the life of the Greek mathematician Diophantus. However‚ his work led to one of the greatest mathematical challenges of all time‚ Fermat’s last theorem. He was born in Alexandria somewhere between 200 and 214 BC. Alexandria was the center of Greek culture and knowledge and Diophantus belonged to the ‘Silver Age’ of Alexandria. Altough little is known about his life‚ according to his riddle‚ he got married when he was 33‚ had a son who lived for 42 years and was 84 when he died
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