configural frequency analyses and cluster analyses
Tài liệu High Availability Networking with NetWare 6: NSS 3.0 and Cluster doc
... Services These services provide the standard and direct input and output to and from objects, as well as other operations on objects themselves, such as create, delete, and truncate operations • Management ... network services, and applications Clustering Concepts A cluster is a group of file servers, in which each server is referred to as a node You create a cluster by loading the clustering software ... part of the cluster The clustering software connects the servers into the cluster Using this software, you can have as many as 32 servers in a cluster (NetWare includes a two-node clustering license.)...
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thomas and patnaik-serial correlation in high-frequency data and the link with liquidity
... markets over the world (Wood et al (1985); Stoll and Whaley (1990); Lockwood and Linn (1990); McNish and Wood (1990b,a, 1991, 1992); Andersen and Bollerslev (1997)) If there are strong intraday ... the other tests for randomness, such as the Ljung-Box and the Dickey-Fuller test (Lo and MacKinlay, 1989) It does not require the normality assumption, and is quite robust Lo and MacKinlay (1988) ... statistics and high -frequency data: Testing for changes in intraday volatility patterns Journal of Finance, LVI(1):305–327 Andersen, T G and Bollerslev, T (1997) Intraday seasonality and volatility...
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Báo cáo hóa học: " Editorial Time-Frequency Analysis and Its Applications to Multimedia Signals" pptx
... robust and fragile digital data protection algorithms and (2) time -frequency- based algorithms for data analysis, classification, and compression In the first four papers, different time -frequency- based ... time -frequency analysis has been considered in the paper entitled “Timefrequency-based speech regions characterization and eigenvalue decomposition applied to speech watermarking” by I Orovi´ c and ... create an arbitrary time -frequency mask that is used to shape the time -frequency characteristics of watermark Both watermark embedding and detection are performed in the time -frequency domain This...
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Báo cáo hóa học: " Research Article Parametric Time-Frequency Analysis and Its Applications in Music Classification" pdf
... provides good time resolution and poor frequency resolution at higher frequencies, and poor time resolution and good frequency resolution at lower frequencies On the other hand, shapegain vector quantization ... iterations and analyzed, and their derivative values, such as mean, median, and standard deviation, are also calculated and studied An additional feature, such as the central energy, is also defined and ... adaptive time -frequency representations,” Medical and Biological Engineering and Computing, vol 38, no 1, pp 2–8, 2000 [4] K Umapathy, Time -frequency modelling of wideband audio and speech signals,...
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Báo cáo hóa học: " Research Article Video Frames Reconstruction Based on Time-Frequency Analysis and Hermite Projection Method" docx
... l)STFT (n, k − l)⎭, (3) where n and k denote discrete time and frequency, respectively, while the rectangular window P(l) is assumed Parameter L determines the frequency window width which is ... stationary and nonstationary blocks in a sequence of frames (box 1-stationary block, box 2-nonstationary block) Video Analysis and Reconstruction Using Time -Frequency Representations and Fast Hermite ... (frames) AC (2, 1) Frequency 10 20 AC (1, 2) Frequency Frequency DC 10 20 30 40 50 60 200 400 600 800 1000 1200 Time (frames) 200 400 600 800 1000 1200 Time (frames) (b) Figure 2: Time -frequency representations...
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Báo cáo hóa học: " Research Article Bit Error Rate Approximation of MIMO-OFDM Systems with Carrier Frequency Offset and Channel Estimation Errors" ppt
... , i) Condition requires that each frequency offset should be much smaller than 1, and conditions and require that the sum of any two frequency offsets (and the frequency offset estimation results) ... replacing εnr ,i with εnr ,i and Υnr ,nt and wnr ,nt are the residual IAI and AWGN components of rnr ,nt , respectively (When Nt is large enough 1), from the and the frequency offset is not too ... assume that the integer part of the frequency offset has been estimated and corrected, and only the fractional part frequency offset is considered Considering small frequency offsets, the following...
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Báo cáo hóa học: " Research Article Broadband Beamspace DOA Estimation: Frequency-Domain and Time-Domain Processing " potx
... [5, 6] as frequency- domain frequency- invariant beamspace (FD-FIBS) approach and time-domain frequency- invariant beamspace (TD-FIBS) approach, respectively In this paper, new broadband DOA estimation ... hN the filter and hn is a real vector Its corresponding frequency response at frequency f j is Hn ( f j ), and should equal approximately the array weight wn ( f j ) employed at frequency f j ... constant over the design band The paper is organized as follows A brief review of broadband beamspace DOA estimation is presented in Section In Section 3, the frequency- domain and timedomain CMRBs...
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Báo cáo hóa học: " Use of Time-Frequency Analysis and Neural Networks for Mode Identification in a Wireless Software-Defined Radio Approach" pptx
... IEEE 802.11b Bluetooth 4 Frequency Frequency ×107 3 Time Time (a) (b) Figure 2: Time -frequency transforms of the two standards: (a) Bluetooth, (b) IEEE 802.11b Frequency Frequency Time Time (a) ... fundamental and integrating part of SR and CR because it allows one to support multimode and multiband communications according to SR In general, MI can be blind or assisted [10], and modes can ... relative frequency of classification errors are presented and discussed As a case study, two standards are considered: WLAN 802.11b [16] and Bluetooth [17] The choice of these two standards stems...
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Parallel Programming: for Multicore and Cluster Systems- P1 ppsx
... many application areas and to enable the reader to develop correct and efficient parallel programs Many example programs and exercises are provided to support this goal and to show how the techniques ... advanced programming methods and enables the reader to write and run semantically correct and efficient parallel programs Parallel design patterns like pipelining, client–server, and task pools are presented ... O’Donnell, Andreas Prell, Carsten Scholtes, and Michael Schwind Many thanks to Matthias Korch, Carsten Scholtes, and Michael Schwind for help with the exercises We thank Monika Glaser for her help and...
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Parallel Programming: for Multicore and Cluster Systems- P2 pot
... balancing, and when the overhead for information exchange, synchronization, and idle times is small Finding a specific scheduling and mapping strategy which leads to a good load balance and a small ... threads, and OpenMP The chapter describes all three and considers programming techniques to obtain efficient parallel programs Many examples help to understand the relevant concepts and to avoid ... processor chip Section 2.5 describes static and dynamic interconnection networks and discusses important characteristics like diameter, bisection bandwidth, and connectivity of different network types...
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Parallel Programming: for Multicore and Cluster Systems- P3 pps
... called clusters Clusters are usually based on standard computers and even standard network topologies The entire cluster is addressed and programmed as a single unit The popularity of clusters as ... on standard protocols like TCP/IP [110, 139] The difference between cluster systems and distributed systems lies in the fact that the nodes in cluster systems use the same operating system and ... sequential processes and which will be considered in more detail in 14 Parallel Computer Architecture Chaps and To perform message-passing, two processes PA and PB on different nodes A and B issue corresponding...
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Parallel Programming: for Multicore and Cluster Systems- P4 pptx
... overhead for saving and restoring processor states when switching to another logical processor All other resources of the processor chip like caches, bus system, and function and control units ... processors Examples of processors that support SMT are the IBM Power5 and Power6 processors (two logical processors) and the Sun T1 and T2 processors (four/eight logical processors), see, e.g., [84] ... density But this also increases the power density and heat production because of leakage current and power consumption, thus requiring an increased effort and more energy for cooling Second, memory...
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Parallel Programming: for Multicore and Cluster Systems- P5 pot
... on the binary representations of v and w, which are denoted by A and B, respectively, in the following We assume that A and B differ in l positions, ≤ l ≤ k, and that these are the first l positions ... network degree is g(G) = because of the inner nodes, and the bisection bandwidth is B(G) = A linear array network can be embedded in nearly all standard networks except a tree network, see below ... the connectivity is nc(G) = ec(G) = 2, and the bisection bandwidth is also B(G) = In practice, ring networks can be used for small number of processors and as part of more complex networks A...
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Parallel Programming: for Multicore and Cluster Systems- P6 pdf
... the stage number and α ∈ {0, 1}k is the position of the node in the stage The connection between neighboring stages i and i + for ≤ i < k is defined as follows: Two nodes (α, i) and (α , i + 1) ... defined as follows: Two nodes (α, i) and (α , i + 1) are connected if and only if α and α are identical (straight edge) or α and α differ in precisely the (i + 1)th bit from the left (cross edge) ... node A and ends at node B A large variety of routing algorithms have been proposed in the literature, and we can only give a short overview in the following For a more detailed description and discussion,...
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Parallel Programming: for Multicore and Cluster Systems- P7 pps
... ∈ E | αi = and βi = 1} and E = {i ∈ E | αi = and βi = 0} Message transmission from A to B is split into two phases accordingly: First, the message is sent into the dimensions in E and then into ... + Tdelay + m/B + Orecv , (2.1) where Osend and Orecv are the sender and receiver overheads, respectively, Tdelay is the time of flight, and B is the bandwidth of the network link This expression ... context, see [84, 35] for more details • The bandwidth of a network link is defined as the maximum frequency at which data can be sent over the link The bandwidth is measured in bits per second or...
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Parallel Programming: for Multicore and Cluster Systems- P8 pot
... Caches and Memory Hierarchy 65 which are currently used most Today, two or three levels of cache are used for each processor, using a small and fast L1 cache and larger, but slower L2 and L3 ... cycle time and main memory access time, see Sect 2.1 The main memory is constructed based on DRAM (dynamic random access memory) A typical DRAM chip has a memory access time between 20 and 70 ns ... memories with different sizes and access times Only the main memory on the top of the hierarchy is built from DRAM, the other levels use SRAM (static random access memory), and the resulting memories...
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Parallel Programming: for Multicore and Cluster Systems- P9 pps
... blocks of the set For v = m and k = 1, a set associative cache reduces to a direct mapped cache For v = and k = m, a fully associative cache results Typical cases are v = m/4 and k = 4, leading to ... to and the USE bit of the other block in the set is set to This is performed for each memory access Thus, 2.7 Caches and Memory Hierarchy 73 the block whose USE bit is has been accessed last, and ... costly [84], and approximations or other schemes are used Often, the block to be replaced is selected randomly, since this can be implemented easily Moreover, simulations have shown that random replacement...
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Parallel Programming: for Multicore and Cluster Systems- P10 pps
... different models, and there is no standardization as yet 2.8 Exercises for Chap Exercise 2.1 Consider a two-dimensional mesh network with n rows and m columns What is the bisection bandwidth of this ... (V1 , E ) and G = (V2 , E ) can be defined as follows: V3 = V1 × V2 and E = {((u , u ), (v1 , v2 )) | ((u = v1 ) and (u , v2 ) ∈ E ) or can be used as abbreviation with the ((u = v2 ) and (u , ... x1 is accessed and invalidation messages are sent to P2 and P3 (2) P2 executes the read operation (2) to x1 We assume that the invalidation message of P1 has already reached P2 and that the memory...
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Parallel Programming: for Multicore and Cluster Systems- P11 ppsx
... models, and programming models The machine model is at the lowest level of abstraction and consists of a description of hardware and operating system, e.g., the registers or the input and output ... accesses and operations on the right-hand side of the assignment are performed After the complete right-hand side is computed, the actual assignment to the array elements on the left-hand side ... PRAM (parallel random access machine) model, which is a generalization of the RAM model and is described in Chap The programming model is at the next higher level of abstraction and describes a...
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Parallel Programming: for Multicore and Cluster Systems- P12 docx
... store those array operands of the right-hand side that might cause 104 Parallel Programming Models conflicts and using these temporary variables on the right-hand side On the lefthand side, the original ... parallel execution, including the required communication and synchronization operations This has the advantage that a standard compiler can be used and that the programmer can control the parallel execution ... languages and environments provide specific variants of the pattern, see Chap for details on Pthreads and Java threads 3.3.6.3 Parbegin–Parend A similar pattern as fork–join for thread creation and...
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