technical advances in digital audio radio broadcasting

... to obtain, as in 2D, a white point with coordinates x = 0.314 and y = 0.351 in the CIE diagram As in 2D, the verification of the white point is... distributor when finalizing the ... define digital cinema projection since 2003 is called “2K“*, this means 2,048 pixels per line (horizontal)... its security (in combination with the projector) Certain projector models integrate ... The positioning... regarding colorimetry can be identical in the calibration room and in the screening room But everything depends on the quality of the settings of your installations

Ngày tải lên: 30/03/2014, 14:20

... between a single RE and single REC The second is a multiple of point-to-point links between a single RE and a single REC, and the third is a multiple of point-to-point links between a single REC ... active in pushing the superconducting filter technology into the commercial cellular market, which include Conductus Inc., ISCO International Inc [9], and Superconductor Technologies Inc Their ... promising technologies are not of pure academic interest Owing to their compelling advantages, they are being studied by leading mobile network infrastructure vendors and being employed in various

Ngày tải lên: 18/04/2014, 10:43

... are increasingly expensive to serve • the high initial costs of introducing fibre networks to replace / complement areas of local loop In the longer term fibre will increasingly be introduced into ... telephone lines in use in each country Figure 2-10 Cable and DSL broadband take up per telephone line in use – Q4 2003 There is still plenty of scope for increasing broadband take up in Europe, ... by:Final Report Technical assistance in bridging the “digital divide”: A Cost benefit Analysis for Broadband connectivity in Europe 6 October 2004 With: Trang 2EC/ESA Digital Divide CBA – Final

Ngày tải lên: 21/08/2014, 15:25

... secondary level, it offers technical education However, training courses, also known as for- mação inicial e continuada (FIC, initial and continuing training courses), are provided independently of any ... constraint in adding, dropping, or modifying the existing VET programs because the specialized skills evolve, and yet teachers spend little time in industry Hiring new teachers and reallocating ... Trang 3Assessing Advances and Challenges in Technical Education in Brazil Trang 5Assessing Advances and Challenges in Technical Education in Brazil Rita Almeida, Nicole Amaral,

Ngày tải lên: 24/11/2015, 20:01

... has to be transmitted in the network, as proposed in this work Another advantage observed in this work is the integration of Diffserv as being the integrator in QoS mapping, since it is applied ... Vg meeting R8 The radius of the destination area is selected randomly and satisfies the rules explained in Step 1 For each node in the group, it randomly selects a point in the group destination ... are also introduced in this paper: the Topology Independent Policy that creates replicas according to an exponentially de- creasing probability (creating more replicas at the beginning of the

Ngày tải lên: 10/12/2013, 14:15

... approaches in query processing for moving object trajectories In VLDB, 2000. S Prabhakar, Y Xia, D V Kalashnikov, W G Aref, and S E Hambrusch Query indexing and velocity constrained indexing: Scalable ... other indexing structures and algorithms for handling moving object positions are suggested in the literature [17,15,9,2,4,18] There are two main points where our work departs from this line of ... queries in [10] This is a low level definition In contrast, our definition of moving queries is at end-user level, which includes the notion of a focal object Second, the work done in [10] indexes

Ngày tải lên: 14/12/2013, 15:15

... example, in a movie database, we may be interested in discovering clusters of directors or actors, which in turn could help in improving the classification of movie tuples Given the joint distribution ... the clusters All remaining tuples of the data set are placed in one of the clusters such that, at each step, the increase in the entropy of the resulting clustering is minimized For the experiments, ... distribution that value induces on the values in à For some is the fraction of the tuples in T that contain and also contain value Also, for some is the fraction of tuples in T that contain the value Table

Ngày tải lên: 14/12/2013, 15:15

... preserving data mining of multi-dimensional data Previous work for privacy preserving data mining uses a perturbation approach which reconstructs data distributions in order to perform the mining ... implicit assumption of treatmin-ing each dimension independently In many cases, a lot of relevant information for data mining al-gorithms such as classification is hidden in the inter-attribute correlations ... following information is maintained about each group of records For each attribute we maintain the sum of corresponding values The corresponding value is given by We denote the corresponding first-order

Ngày tải lên: 14/12/2013, 15:15

... bisimilarity of nodes Depending on the application, the index definition scheme can be used to define special indexes (e.g 1–Index, A(k)–Index, D(k)–Index [22], F&B–Index) where k is the maximum ... dimensionality, an intrinsic problem in skyline queries, we propose a novel sampling scheme that allows to get an early impression of the skyline for subsequent query refinement. 1 Introduction In times ... /monography/bibliography/reference/URL in one docu-ment and is continued as /paper/authors/person in another docudocu-ment would be included in the result list of the above query But instead of following a URL-based link an

Ngày tải lên: 14/12/2013, 15:16

... Phonetic Indexing We now outline a phonetic indexing technique that may be used for accessing the near-equal phonemic strings, using a standard database index We exploit the following two facts ... improvements could be obtained by internalizing our “outside-the-server” implementation into the database engine In summary, we expect the phonetic matching technique outlined in this paper to effectively ... discussed in in Section 5 Finally, we summarize our conclusions and outline future research avenues in Section 6 2 Multiscript Query Processing In multiscript matching, we consider the matching of

Ngày tải lên: 14/12/2013, 15:16

... Computing and Handling Cardinal Direction Information In general, each multi-tile 333 relation is defined as follows: In Definition notice that for every such that and and have disjoint interiors ... remove this watermark Computing and Handling Cardinal Direction Information 335 Fig Polygon clipping Computing Cardinal Direction Relations Typically, in Geographical Information Systems and Spatial ... remove this watermark Computing and Handling Cardinal Direction Information Fig Lines not crossing AB 339 Fig Area between an edge and a line For example, in Fig lines and not cross edge AB Let

Ngày tải lên: 14/12/2013, 15:16

... pruning steps using can be done to more effective pruning, since the two sets are symmetric in this join problem Constructing NNH Using Good Pivots Pivot points are vital to NNH for obtaining ... Utilizing Histograms in Queries A typical search involving R-trees follows a branch-and-bound strategy traversing the index top down It maintains a priority queue of active minimum bounding rectangles ... containing a given point” can also occur in practice (for instance, in a publishsubscribe application where subscriptions define interval ranges as attributes, and events can be points in these

Ngày tải lên: 24/12/2013, 02:18

... in different domains, since testing the implication in each domain is easier Now we show that this partitioning idea is feasible We say a comparison X A is in domain D if X and A are in domain ... Improvements Using Domain Information So far we have discussed in what cases we not need to normalize queries in the containment test, and in what cases we can reduce the containment test to checking the ... obtained in polynomial time 5.2 Partitioning Implication into Domains According to Theorem 1, to test the containment for two given queries and we need to test the containment implication in the

Ngày tải lên: 24/12/2013, 02:18

... classes of problems solvable in deterministic polynomial and deterministic exponential time, respectively, on Turing machines queries can be evaluated in linear time in the size of the data and ... rule or in general on trees satisfying (b) if every node has a sibling This holds in all trees in which (c) if no has a child This holds in all trees satisfying We consider the following decision ... reduction from to S2S as explained in [35]: a compass-PDL model is turned into an model by defining and is the first daughter of } by defining and Direct proof. Consider as in the Theorem By Theorem

Ngày tải lên: 24/12/2013, 02:18

... detection in Telecom networks, it is important to be able to answer queries in real-time and infer interesting patterns on-line As a result, recent years have witnessed an increasing interest in designing ... original query The problem of finding these plans is identical to the answering queries using materialized views [20] problem In general, this problem is NP-Complete, since it involves searching ... designing single-pass algorithms for querying and mining data streams that examine each element in the stream only once E Bertino et al (Eds.): EDBT 2004, LNCS 2992, pp 569–586, 2004 © Springer-Verlag

Ngày tải lên: 24/12/2013, 02:18

... runtime join state Since the join needs to maintain in its join state the data that has already arrived in order to compare it against the data to be arriving in the future As data continuously ... join compo-nents, tuning options, sliding windows and to handle n-ary join Extension for supporting sliding window. To support sliding window, ad-ditional tuple dropping operation needs to be introduced ... M Franklin XJoin: A reactively scheduled pipelined join operator. IEEE Data Engineering Bulletin, 23(2):27–33, 2000. T Urhan and M J Franklin Dynamic pipeline scheduling for improving interac-tive

Ngày tải lên: 24/12/2013, 02:18

... Variant Indexes SIGMOD 1997. R Pieringer et al: Combining Hierarchy Encoding and Pre-Grouping: Intelligent Grouping in Star Join Processing ICDE 2003. F Ramsak et al: Integrating the UB-Tree into ... defined by Definition 7, by finding all dead states in the intersection automaton of and to determine The set of states, as defined by Definition 8, can also be determined, in linear time, using ... we omit details regarding non-deterministic finite state automata 4.1 Definitions A deterministic finite automaton is a 5-tuple where Q is a finite set of states, is a finite alphabet of symbols,

Ngày tải lên: 24/12/2013, 02:18

... and audio quality Before being integrated into a database query, the QoP inputs are translated into application QoS based on the information stored in the User Profile For example, a user input ... histograms In this case, an histogram is derived by dividing the range of the node label into bins Then, each bin is assigned the number of nodes in the tree whose value is in the range of the bin To ... corresponding label histograms is appropriate A single insert or delete operation changes exactly one bin of such a label histogram, a single relabeling operation can influence at most two histogram bins

Ngày tải lên: 24/12/2013, 02:18

... Restricted tuning capabilities can be incorporated in this circuit introducing a varactor diode in the feedback line in order to control its electrical length changing the capacitive loading (Yuen ... line and the input line of the distributed amplifier (Fig. 2). This topology is known as forward gain distributed oscillator, since it involves forward propagating waves that, circulating in ... travelling waves pass through each section, it gets amplified at the drain line (output ATL) in a concurrent way. At the end of the gate and at the beginning of the drain line a matched termination...

Ngày tải lên: 07/03/2014, 21:20