network middleware for large scale mobile and pervasive augmented reality games

... constructing effective and computationally efficient preconditioners for large scale dense and ill-conditioned linear system in each iteration explains why recent approaches for solving large scale linear ... based on classical methods for convex programming, such as proximal-point and augmented Lagrangian methods (For details on non-interior-point based methods for solving large scale linear SDP, see ... conditions for (P 1) and (D1) For a nonzero ν, (3.3) is the optimal condition for the log-det problems, that is, adding log barriers −ν log det x and ν log det z + nν(1 − log ν) to (P 1) and (D1)...

Ngày tải lên: 11/09/2015, 10:02

... Newton-CG augmented Lagrangian method for solving large scale linear and convex quadratic programs over symmetric cones; and • to design efficient practical variant of the theoretical algorithm and perform ... Burer and Vandenbussche [22] proposed a augmented Lagrangian method for optimizing the lift -and- project relaxations of QAP and binary integer programs introduced by Lov´sz a 1.1 Motivation and ... study of the theory and algorithm for solving large scale convex quadratic programming over special symmetric cones Because of the inefficiency of interior point methods for large scale SDPs, we introduce...

Ngày tải lên: 12/09/2015, 21:26

... the specifics and scale of how best to aggregate security expertise, personnel, and resources for the use and benefit of all We believe there is great potential in aggregation and we offer the ... computer memory) and thus is likely to represent real and serious attack attempts, accounts for over 90% of events For the more regular days there is no single dominating event, and it is not clear ... executable cracking programs and make them available to legions of novice but eager ‘script kiddies’ who help enact large and widespread attacks And there have been real and significant cases of...

Ngày tải lên: 14/08/2014, 14:22

... system for automatically acquiring verbal, nominal and adjectival subcategorization and associated frequency information from English corpora, which can be used to build large- scale lexicons for ... from the old system For nouns and adjectives the gold standard was created For each noun and adjective, 100-300 sentences from the BNC (an average of 267 per word) were randomly extracted The ... approximately 744K for verbs and 219K for nouns and adjectives, respectively The lexical entries are similar to those in the VALEX lexicon See (Korhonen et al., 2006) for a sample entry 3.2 Gold Standard...

Ngày tải lên: 17/03/2014, 04:20

... node), and so forth Results are shown for the three different protocols for initializing a new node’s state, with (“Estimation”) and without (“Standard”) the heuristic mentioned in Section 2.5, and ... [11, 21] and SCRIBE [22], and several applications are under development 2.4 Self-organization and adaptation In this section, we describe Pastry’s protocols for handling the arrival and departure ... peer-to-peer applications and understanding more of the issues and requirements of such applications and systems [1, 2, 5, 8, 10, 15] One of the key problems in large- scale peer-to-peer applications...

Ngày tải lên: 28/04/2014, 13:40

... stochastic gradient method for updating the beamformers 4.1 Stochastic gradient algorithm for beamformer update The algorithm for the beamformer update is a generalization of [14] and is described as ... best transmit and receive beamformers from the previous iteration and generates Kt -1 new transmitand K r -1 new receive beamformers for the current iteration With a fixed step size and a single ... which a largescale MIMO system with Nt = 32 and Nr = 10 transmit and receive antennas operating at the 60 GHz band is randomly located All the antennas are omni-directional with 20 dBi gain and vertical...

Ngày tải lên: 21/06/2014, 01:20

... (6) and (9) As long as λl is large enough, upon convergence, Pl (i) (k) for each l becomes nonzero for some (at least one) of k = 1, 2, , K, and zero for the rest of k = 1, 2, , K Then for ... affected by the size of the network, which is a very important property 3.3 Large quasiregular network To illustrate the performance of the DCLS algorithm for an even larger network, we have considered ... Illustration of Pl (i) (k) of the DCLS algorithm with K = and λ = for the ring network versus the iteration index i for an arbitrary choice of l and k and different values of ξ This particular link l is...

Ngày tải lên: 22/06/2014, 06:20

... Falquet, P Sperisen and Vital-IT at the Swiss Institute of Bioinformatics for advice and access to bioinformatics resources; C LaMendola for help with ant sampling, RNA collections and microarray ... GB15931-PA and NH homology on reverse strand * • GB10007-PA on reverse strand *** • Near ab initio prediction and NH homology on reverse strand ** Ab initio prediction on reverse strand *** Near ... valuable resource for molecular, ecological and evolutionary studies in ants developmental stages and castes (workers, queens, and males) of both the monogynous and polygynous social forms First,...

Ngày tải lên: 14/08/2014, 17:22

Ngày tải lên: 14/11/2014, 06:38

... presented in [131, Lemma 2.3.6 and Proposition 2.3.7] For any λ = (λ1 , , λ(p+q) )T ∈ p+q , let λi = σi for i ∈ α, λi = −σi−p for i ∈ γ, and λi = for i ∈ β For each threshold ρ > 0, we decompose ... highly efficient and robust in solving large- scale random matrix completion problems In [71], Liu, Sun and Toh considered the following nuclear norm minimization problem with linear and second order ... ρI|α2 | For each k, let α k→∞ λk = (λk , , λk )T ∈ (p+q) p+q k k , where λk = σi for i ∈ α, λk = −σi−p for i ∈ γ, and i i λk = for i ∈ β Let Λk ≡ Λk (εk , λk ) be defined by (2.30) and Dk ≡...

Ngày tải lên: 10/09/2015, 08:41

... (wz,t,i,j ) end for wz,t,i+1,0 ← wz,t,i,P end for end for Collect/stack weights W ← [w1,t,S,0 | |wZ,t,S,0 ]T Select top K feature columns of W by norm and for k ← K v[k] = end for end for return ... features Table shows results for algorithms and on the Europarl data (ep) for different devtest and test sets Europarl data were used in all runs for training and for setting the meta-parameter ... Riezler and John Maxwell 2005 On some pitfalls in automatic evaluation and significance testing for MT In Proceedings of the ACL-05 Workshop on Intrinsic and Extrinsic Evaluation Measures for MT and/ or...

Ngày tải lên: 19/02/2014, 19:20

... –2kg/t product) for large pulp and paper mills Therefore it has now become necessary to monitor and regulate the discharge of chlorinated compounds in effluents The discharge limits for organo chlorine ... technology and to generate data based information on existing level of AOX in small scale pulp and paper mills producing writing & printing and speciality paper from agro residues , waste paper and ... conducted in small scale pulp and paper mills operating with and without chemical recovery system and producing writing & printing and specialty papers from agro residues, waste paper and market pulp...

Ngày tải lên: 22/02/2014, 09:20

... three-dimensional viscous primitive equations, which model large scale ocean and atmosphere dynamics Introduction Large scale dynamics of oceans and atmosphere is governed by the primitive equations ... viscous primitive equations of large scale ocean and atmosphere dynamics By Chongsheng Cao and Edriss S Titi Abstract In this paper we prove the global existence and uniqueness (regularity) of ... coupled to thermodynamics and salinity diffusion-transport equations, which account for the buoyancy forces and stratification effects under the Boussinesq approximation Moreover, and due to the shallowness...

Ngày tải lên: 06/03/2014, 08:21

... Czech informants: Robert Fischmann, Eliska Kozakova, Alena Prunerova and Martin Smok; and to Soumya Bhat for her programming efforts This work was supported in part by NSF IIS Award 0122466 and NSF ... w For example, the word “Auschwitz” occurs in 35 concepts As a candidate for translation, it carries a large impact, both in terms of the number of keyword phrases that contains this word, and ... translation for “statické snímky” and “kláštery” is recorded as a translation for “convents and monasteries.” We count the number of occurrences of each alignment in all of the translations and calculate...

Ngày tải lên: 08/03/2014, 02:21

... one for non-coordinate configurations, one for coordinate configurations, one for traces (long distance dependencies) and a final ‘catch all and clean up’ phase Distinguishing between argument and ... precision 87.1% and recall 71.2% By comparison, the average results for 30 verbs not classified semantically are precision 78.2% and recall 58.7% Carroll and Rooth (1998) use a hand-written head-lexicalised ... F-score of 96.3% for complete f-structures and 93.6% for preds-only f-structures.1 Our semantic form extraction methodology is based on the procedure of (van Genabith et al., 1999): For each f-structure...

Ngày tải lên: 17/03/2014, 06:20

... surface-adsorbed species and make them excellent candidates for gas sensing applications [34,35] The gas sensing performance X Shen et al / Sensors and Actuators B 143 (2009) 325–332 329 Fig TEM and HRTEM images ... FE-SEM and TEM It was discovered that the doublesided nanorod arrays are formed from urchin-like microspheres via a self-assembly and fusion process This may provide a new strategy for large- scale ... constant relative to the material, Eg is the band gap, and n is either 1/2 for an indirect transition or for a direct transition The (˛h )2 versus h curve for the product is shown in the inset in...

Ngày tải lên: 20/03/2014, 13:04

... inherent wide band gap (3.4 eV for GaN), chemical and radiation inertness and high temperature properties of GaN The wide band gap makes it a candidate material for high-power and high-temperature ... rhombohedral for x < 0.48 and tetragonal for x > 0.48 under standard conditions The rhombohedral phase is divided into ‘high temperature’ and ‘low temperature’ phases with crystal symmetries R2m and R3c, ... materials performance is predictable and reliable By implication, quality and processing must be well understood and commercial supplies readily available For these reasons, the time -scale in which...

Ngày tải lên: 20/03/2014, 13:05

... Sparse model For the hyper parameter , we empirically selected 0.001 for Method (this preserves 99% of probability density), for Method 2, and for Methods and Note that for Methods 2, 3, and indicates ... the forward-backward procedure to calculate marginals (Sutton and McCallum, 2006) We formally describe here an efficient calculation of α and β recursions for the forwardbackward procedure The forward ... performs 5∼50 times faster for training (1,774 s for M ALLET, 18,134 s for C RF ++, Experiment We evaluated our method on six large- scale natural language data sets (Table 1): Penn Treebank3 for...

Ngày tải lên: 23/03/2014, 17:20

... (Served block to) and a variable part called the message variables (blk 801792886545481534) The message type is essential information for automatic analysis of console logs, and is widely used ... log when exceptional behavior happens, and therefore Approach There are four steps in our approach for mining console logs We first extract structured information from console logs By combining ... messages (one key for each group) We find variables that are frequently reported by different message types and can have a large number of distinct values This step eliminates the need for a user to...

Ngày tải lên: 30/03/2014, 16:20

... using large corpora with large numbers of bigrams the number of required updates can increase pre and towards the quadratic upper bound as Nc suc Nc approach Nc For a more detailed description and ... size, providing a significant performance advantage over the other optimization criterion, especially when large vocabularies are used (Whittaker and Woodland, 2001) For efficiency reasons, an exchange ... W D Whittaker and P C Woodland 2001 Efficient class-based language modelling for very large vocabularies In Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing...

Ngày tải lên: 31/03/2014, 00:20