LECTURE 2: PROBABILISTIC ANALYSIS AND RANDOMIZED ALGORITHMS ppt

... interview n candidates and thus always incur the cost nc i , associated with interviewing. Probabilistic analysis  Probabilistic analysis is the use of probability in the analysis of problems. ... best←0 candidate 0 is a least-qualified dummy candidate 2 for i ← 1 to n 2 for i ← 1 to n 3 do interview candidate i 4 if candidate i is better than candidate best 5 then best...

Ngày tải lên: 12/07/2014, 18:20

... using a pseudorandom sequence, to randomize the interference and meanwhile makes it difficult to intercept and detect the trans- mitted signal. Consider a DS-CDMA system with M users and K receive antennas. ... secure communication and military use, CDMA has been identified as a major modulation and multiple-access technique for 3G systems and beyond. In addition to the wide bandwidt...

Ngày tải lên: 22/06/2014, 19:20

... metric used in assessment of channel quality Lecture 2 Wireless Environment and Wireless LANs Wireless Networks and Mobile Systems Wireless Environment and Wireless LANs 26 Evolution of Mobile ... Europe Wireless Environment and Wireless LANs 20 Frequency Hopping Spread Spectrum (FHSS) ● Data signal is modulated with a narrowband signal that hops from frequency band to frequenc...

Ngày tải lên: 29/10/2013, 06:15

... by substitution into the differential equation and, as expected, are found to be -2 and respectively. Then x(t) = -2 + + + + and the constants and are determined by the three initial conditions. The ... with the conclusion that -1-j 2 Comparison of Eqs. (3.8) and (3.11) and the result for B show that we have two possible ways to assign a and so that we match the form of Eq. (...

Ngày tải lên: 22/12/2013, 21:18

... phrases containing the modifier, noun, and a prepo- sitional joining term. We compare and evaluate different algorithms and different joining phrases on Nastase and Szpako- wicz’s (2003) dataset ... Phrases Using Web Counts and Learning Algorithms Paul Nulty School of Computer Science and Informatics University College Dublin Belfield, Dublin 4, Ireland paul.n...

Ngày tải lên: 20/02/2014, 12:20

... in PD, and understand- ing its properties and functions will aid in our under- standing of disease pathology and progression. Experimental procedures Chemicals and reagents All compounds and proteins ... wild-type and G2019S LRRK2 (data not shown). A small panel of kinase inhibitors was then selected for further study (Table 1), and dose–response relationships were obtained usin...

Ngày tải lên: 23/03/2014, 06:20

... expected to produce a 7.7-kb band for wAQPap-1 and wAQPap-3, 5.6-kb signal for wAQPap-2, and 3.5-kb signal for AQPap, respectively. The signal intensity of the 7.7-kb band was around threefold greater than ... with BamHI and t hen subjected to Southern blot analysis using 32 P-radiolabeled genomic probe as d escribed in the Materials and methods. (C) Tissue distribution o f mRNAs fo...

Ngày tải lên: 23/03/2014, 21:21

... in the grammar, and with enough examples we can pin- point the grammar rules causing these problems. We call our system Egad, which stands for Erro- neous Generation Analysis and Detection. ∗ This ... ob- served with the given CP and RP. 5 Results and Evaluation We can look at two sets of results: how well Egad was able to analyze a grammar and detect errors, and how well a gram...

Ngày tải lên: 31/03/2014, 00:20