5 accepted papers
We address the problem of search-free DOA estimation from a single noisy snapshot for sensor arrays of arbitrary geometry, by extending a method of gridless super-resolution beam-forming to arbitrary arrays with noisy measurements. The primal atomic norm minimization problem is converted to a dual p…
Teaching is increasingly migrating to digital platforms, where relevant content can be quickly accessed and explored in small chunks within the appropriate context. A variety of on-line systems have been developed to cater to educational experience that is predominantly digital, contextually accurat…
This work presents a mathematical approach for recovering a physical model from a low-rank approximation of measured data obtained via the singular value decomposition (SVD). The general form of a low-rank physical model of the data is often known, so the presented approach learns the proper rotatio…
Throughout a semester students use textbooks to reference key fragments especially in response to assigned homework problems. We present an extension to an existing web-based Question and Answer (Q&A) system by incorporating the course textbook as a collection of annotated and chunked resources in a…
Full waveform inversion (FWI) delivers high-resolution images of a subsurface medium property by minimizing itera-tively the misfit between observed and simulated seismic data, and is commonly used by the oil and gas industry for geophysical exploration. FWI is a challenging problem because seismic…