A novel acoustic echo canceller for speakerphone system based upon Iterative Maximal Length Correlation (IMLC) algorithm is proposed. This algorithm is robust to double talk because of the nature of the ML sequence; it also iteratively reduces the far-end speech's effects. This simple structure was found to perform very well. We also perform a rigorous convergence analysis and derive the lower ...

| 1. Graduate School of Design, Harvard University, Gund Hall, 48 Quincy Street, Cambridge, MA, 02138, USA. [email protected] 2. Includes the value of construction work done during the year for construction work performed by general contractors and special trade contractors 3. Includes all establishments that were in business at any time during the year. Construction establishments that ...

We use orthogonality calculus to prove a downward transfer from categoricity in a successor in abstract elementary classes (AECs) that have a good frame (a forking-like notion for types of singletons) on an interval of cardinals: Theorem 0.1. Let K be an AEC and let LS(K) ≤ λ < θ be cardinals. If K has a type-full good [λ, θ]-frame and K is categorical in both λ and θ, then K is categorical in ...

We show that Shelah’s Eventual Categoricity Conjecture follows from the existence of class many strongly compact cardinals. This is the first time the consistency of this conjecture has been proven. We do so by showing that every AEC with LS(K) below a strongly compact cardinal κ is < κ tame and applying the categoricity transfer of Grossberg and VanDieren [GV06a]. These techniques also apply t...

Theorem 0.1. Let K be an abstract elementary class (AEC) with amalgamation and no maximal models. Let λ > LS(K). If K is categorical in λ, then the model of cardinality λ is Galois-saturated. This answers a question asked independently by Baldwin and Shelah. We deduce several corollaries: K has a unique limit model in each cardinal below λ, (when λ is big-enough) K is weakly tame below λ, and t...

CIMsteel Integration Standard, Version 2 (CIS/2) is an industry-developed product model based on ISO-STEP technology that has been widely adopted within the steel construction industry. CIS/2 is an early success story of broad use of a product model for both data exchange and improving the productivity of those companies taking advantage of its capabilities. Here, we review the history of CIS/2...

AEC practitioners commonly use discipline-specific computer-based information modeling and analysis processes today. However, these practitioners lack simple, flexible, formal frameworks to communicate and integrate these processes and information amongst multiple disciplines. They therefore struggle to quickly and accurately achieve balanced and near-optimal multidisciplinary designs. To addre...