2 conditional frequency distributions
Báo cáo khoa học: "A STOCHASTIC PROCESS FOR WORD FREQUENCY DISTRIBUTIONS" pot
Ngày tải lên :
08/03/2014, 07:20
... that (1) highfrequency words have more neighbors than lowfrequency words (the neighborhood density effect), and that (2) high -frequency words have higher -frequency neighbors than low -frequency words ... process Without this assumption, rank -frequency distributionsare generated that depart significantlyfrom the empirical rank -frequency curve, the highest frequency words attracting a very large ... between the target's frequency and the frequencies of its neighbors - - targets with many neighbors having higher frequency neighbors, and hence a higher mean neighborhood frequency f,~ than targets...
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Báo cáo khoa học: "Word Frequency Distributions in R" pdf
Ngày tải lên :
31/03/2014, 01:20
... type frequency lists (which, in the simplest case, can be newlinedelimited lists of frequency values) and tokenized (sub-)corpora (one word per line) Thus, as long as users can extract frequency ... have frequency lists of the word types containing the two prefixes.2 In our R session, we import the data, create frequency spectra for the two classes, and we plot the spectra to look at their frequency ... in the sample The set of values Vm (N ) for all frequency ranks m = 1, 2, 3, is called a frequency spectrum and constitutes a sufficient statistic for the purpose of...
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Báo cáo hóa học: "Review Article Techniques to Obtain Good Resolution and Concentrated Time-Frequency Distributions: A Review" potx
Ngày tải lên :
21/06/2014, 20:20
... Time Frequency Frequency −50 −1 −50 −1 (i) Time Time (j) Time Time −50 −1 (h) 50 (d) (g) 50 Frequency −50 −1 Time 50 (f) 50 −50 −1 50 Frequency 0 Time (c) 50 Frequency Frequency −50 −1 (b) 50 Frequency ... Advances in Signal Processing −40 −1 Frequency 40 Frequency 40 Frequency 40 −40 Time −1 (a) −40 Time (b) Frequency −40 Time 1 40 Frequency −40 Time (c) 40 Frequency 40 −1 −1 −1 (d) −40 Time (e) ... Advances in Signal Processing −40 Frequency 40 Frequency 40 Frequency 40 27 −40 −1 Time −40 −1 (a) Time −1 (b) Time 1 Frequency −40 −1 Time 40 Frequency −40 (c) 40 Frequency 40 Time −40 −1 (d) Time...
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Báo cáo hóa học: " Research Article Computationally Efficient Scale Covariant Time-Frequency Distributions Selin Aviyente" pptx
Ngày tải lên :
21/06/2014, 22:20
... samples 250 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 Normalized frequency 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 Normalized frequency Normalized frequency Figure 2: Scale covariant distribution for a Gabor ... and β2 = −β1 The time -frequency kernel is constructed as described in the previous example using K1 = K2 = 0.5, that is, z(n) = √ Jx(n) = 1/2 n The three time -frequency distributions obtained ... interference distributions in terms of computational complexity and the amount of cross-terms Conclusions In this paper, we introduced a new method for constructing scale covariant time -frequency distributions...
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Báo cáo hóa học: " Blind Separation of Nonstationary Sources Based on Spatial Time-Frequency Distributions" doc
Ngày tải lên :
22/06/2014, 23:20
... 0.4 Normalized frequency 0.5 0.4 Normalized frequency 0.5 0.3 0.2 0.1 0.3 0.2 0.1 50 100 150 200 250 50 100 150 200 250 (b) Source 0.5 0.4 0.4 Normalized frequency 0.5 Normalized frequency 250 ... SNR = dB) 0.4 Normalized frequency 0.5 0.4 0.3 0.2 0.1 0.3 0.2 0.1 50 100 150 200 250 50 100 Time 150 Time (a) Signal (b) Signal 0.5 0.4 Normalized frequency Normalized frequency 0.5 0.3 0.2 0.1 ... where, as we explained earlier, a small value Y Zhang and M G Amin 0.4 Normalized frequency 0.5 0.4 Normalized frequency 0.5 0.3 0.2 0.1 0.3 0.2 0.1 50 100 150 200 250 50 100 Time (a) Without...
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Anh văn 9 :Conditional Clause 2
Ngày tải lên :
03/11/2012, 11:34
... would come 14 If I have some money I (buy) a new car 15 If I (work) harder I will pass the exam CONDITIONAL CLAUSES If she sets the alarm clock she (not oversleep) We (go) swimming if it was warm ... painted it blue 14 They would be glad if the rain (stop) soon 15 If you asked us we (help) you CONDITIONAL CLAUSES If I hear the thief I (catch) him I (go) to the cinema if I had more time I ... will have to invite Bob 14 I won't visit him if he (be) angry 15 If I find the book I (send) it CONDITIONAL CLAUSES If I were you, I (start) now If Charles (visit) me, I would lend him my tools...
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Conditional Clause 2
Ngày tải lên :
15/09/2013, 17:10
... 15 If he tells me the truth I glad (be) CONDITIONAL CLAUSES If I was offered the job, I think I If she (be) hungry, she would eat something ... would come 14 If I have some money I 15 If I (buy) a new car (work) harder I will pass the exam CONDITIONAL CLAUSES If she sets the alarm clock she oversleep) We (not (go) swimming if it was warm ... if you painted it 14 They would be glad if the rain 15 If you asked us we (stop) soon (help) you CONDITIONAL CLAUSES If I hear the thief I 2I (catch) him (go) to the cinema if I had more time I...
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Conditional Clause 2
Ngày tải lên :
15/09/2013, 17:10
... 15 If he tells me the truth I glad (be) CONDITIONAL CLAUSES If I was offered the job, I think I If she (be) hungry, she would eat something ... would come 14 If I have some money I (buy) a new car 15 If I (work) harder I will pass the exam CONDITIONAL CLAUSES If she sets the alarm clock she oversleep) We (not (go) swimming if it was warm ... you painted it 14 They would be glad if the rain (stop) soon 15 If you asked us we (help) you CONDITIONAL CLAUSES If I hear the thief I 2I (catch) him (go) to the cinema if I had more time I...
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Conditional Clause 2
Ngày tải lên :
15/09/2013, 17:10
... 15 If he tells me the truth I glad (be) CONDITIONAL CLAUSES If I was offered the job, I think I If she (be) hungry, she would eat something ... would come 14 If I have some money I 15 If I (buy) a new car (work) harder I will pass the exam CONDITIONAL CLAUSES If she sets the alarm clock she oversleep) We (not (go) swimming if it was warm ... if you painted it 14 They would be glad if the rain 15 If you asked us we (stop) soon (help) you CONDITIONAL CLAUSES If I hear the thief I 2I (catch) him (go) to the cinema if I had more time I...
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Electronic Circuits - Part 2 - Chapter 11 Frequency Response pdf
Ngày tải lên :
18/03/2014, 18:20
... computed at the same frequency where as Example 11.10 uses the low -frequency frequency where as Example 11.10 uses the low -frequency gain gmRD,,even for the purpose of finding high -frequency gain gmRD ... a tenfold change in for a tenfold increase in frequency. ) frequency. ) •• As passes each zero frequency, the slope of j As passes each zero frequency, the slope of j increases by 20 dB/dec ... we must ask: why is frequency response important? The following examples illustrate the issue Figure 11.1 (a) Conceptual test of frequency response, (b) gain roll-off with frequency Vd: Đáp ứng...
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Báo cáo khoa học: "Unsupervised Segmentation of Words Using Prior Distributions of Morph Length and Frequency" ppt
Ngày tải lên :
31/03/2014, 03:20
... adjusted in order to produce distributions that fit the reference as well as possible We thus assume that we can make a good guess of the final morph length and frequency distributions Note, however, ... line of thought: Zipf has studied the relationship between the frequency of a word, f , and its rank, z.6 He suggests that the frequency of a word is inversely proportional to its rank Mandelbrot ... word as a function of its frequency can be obtained by solving for z from (5): 1 z = C a f − a − b (6) Suppose that one wants to know the number of words that have a frequency close to f rather...
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Advanced Radio Frequency Identification Design and Applications Part 2 potx
Ngày tải lên :
19/06/2014, 23:20
... 10 Advanced Radio Frequency Identification Design and Applications Tag antenna design In Section 2, a few fundamental ... oriented RFID system or bit-rate oriented RFID system is reported by Vita et al 12 Advanced Radio Frequency Identification Design and Applications (2005) The task of optimising the factor of θ is ... an RFID reader the sensitivity can be influenced by several additional factors 14 Advanced Radio Frequency Identification Design and Applications including receiver implementation details, receiver...
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Báo cáo hóa học: " Deletion of human metapneumovirus M2-2 increases mutation frequency and attenuates growth in hamsters" potx
Ngày tải lên :
20/06/2014, 01:20
... sequences, showing that the high frequency of A insertions was predominantly confined to the region encoding the non-essential genes M2-1 and SH An assay for detecting low frequency nucleotide insertion ... GATGAGCAAAACTCC GATGAGCAAAAACTCC Figure Chromatogram and frequency of A insertions and point mutations in rhMPV/ΔM2-2 compared to rhMPV Chromatogram and frequency of A insertions and point mutations in ... transcripts indicating that the M2 gene-end sequences are particularly prone to high frequency of readthrough transcription The frequency of readthrough transcription at the M2 gene stop sequences appeared...
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Báo cáo hóa học: " Design of Uniformly Most Powerful Alphabets for HDF 2-Way Relaying Employing Non-Linear Frequency Modulations" ppt
Ngày tải lên :
20/06/2014, 22:20
... with symmetrical XC matrix, again excluded by XOR V Design of ump frequency modulations In this section, we consider non-linear frequency modulations that naturally possess multidimensional alphabets, ... complex-orthogonal and non-binary complex bi-orthogonal modulations with XOR are UMP 4) Non-linear frequency modulations FSK and fullresponse continuous phase modulation (CPM) naturally comprise ... UMP condition We optimize a scalar parameters of FSK (modulation index) and full-response CPM (frequency pulse shape) to yield UMP alphabets We find that a lower modulation index (proportional...
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Báo cáo hóa học: "Research Article Time-Frequency and Time-Scale-Based Fragile Watermarking Methods for Image Authentication Braham Barkat1 and Farook Sattar (EURASIP Member)2 1 Department 2 Faculty" pdf
Ngày tải lên :
21/06/2014, 08:20
... (LL) represents the low frequency band, (HH) the high frequency band, (LH) the low-high frequency band, and (HL) the high-low frequency band For image quality purpose, the frequency bands (LL) and ... Watermarking Based on Time -Frequency Analysis 2.1 Brief Review of Time -Frequency Analysis A given signal can be represented in many ways; however, the most important ones are time and frequency domain ... 0.1 0.15 0.2 0.25 0.3 0.35 Frequency [Hz] 0.4 0.45 0.05 0.1 0.15 (c) 0.2 0.25 0.3 0.35 Frequency [Hz] (d) Time [samples] 200 150 100 50 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 Frequency [Hz] 0.4 0.45...
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Radio Frequency Identification Fundamentals and Applications, Bringing Research to Practice Part 2 potx
Ngày tải lên :
21/06/2014, 11:20
... current legal status for selected frequency bands used in different dedicated solutions (i.e the animals' Field Conditions of Interrogation Zone in Anticollision Radio Frequency Identification Systems ... Surveillance (EAS), Radio Frequency Identification (RFID) and similar applications, IEC EN 50364 (2001) Limitation of human exposure to electromagnetic fields from devices operating in the frequency range ... Matters (ERM); Short Range Devices (SRD); Radio equipment in the frequency range kHz to 25 MHz and inductive loop systems in the frequency range kHz to 30 MHz; Part 1: Technical characteristics...
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Radio Frequency Identification Fundamentals and Applications, Design Methods and Solutions Part 2 ppt
Ngày tải lên :
21/06/2014, 14:20
... command A tag shall compute the backward link frequency as BLF = DR TRcal (8) and adjust its response to be inside the Frequency Tolerance (FT) and Frequency Variation (FV) limits established by ... signal constraints with a clock frequency as low as 1.30 MHz Fig Clock frequency constraints for C1G2 digital core with a balanced half-Tpri base transmitter 26 Radio Frequency Identification Fundamentals ... synthesized backward link frequency will be nTpri Ta Taking from equation (4) the maximum and minimum values of nTRcal, we can write the following two constraints to meet the frequency tolerance requirements...
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Báo cáo hóa học: " Design and Characterization of a 5.2 GHz/2.4 GHz ΣΔ Fractional-N Frequency Synthesizer for Low-Phase Noise Performance" potx
Ngày tải lên :
22/06/2014, 22:20
... very close-in noise and it quickly reaches thermal noise floor at offset frequency around ωc R 3.3 Frequency divider noise Frequency dividers consist of switching logic circuits, which are sensitive ... temperature and humidity Frequency dividers generate spurious noise especially for high -frequency operation Dividers not generate signals, but rather simply change their frequency Kroupa provided ... that frequency dividers add to a signal [8, 9]: ϕ2 Added (Δω) Div ≈ 10−14±1 + 10−27±1 ωdo 10−22±1 ωdo + 10−16±1 + , 2π · Δω 2π (14) where ωdo is the divider output frequency and Δω is the offset frequency...
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