Phase retrieval with background information

Phase retrieval with background information

Phase retrieval problem has been studied in various applications. It is an inverse problem without the standard uniqueness guarantee. To make complete theoretical analyses and devise efficient algorithms to recover the signal is sophisticated. In this paper, we come up with a model called phase retrieval with background information which recovers the signal with the known background information...

Phase-Based Information Retrieval

ÐIn this article we describe a retrieval schema which goes beyond the classical information retrieval keyword hypothesis and takes into account also linguistic variation. Guided by the failures and successes of other state-of-the-art approaches, as well as our own experience with the IRENA system, our approach is based on phrases and incorporates linguistic resources and processors. In this res...

Interactive information retrieval : history and background

retrieval? It is legitimate for the reader to ask why a distinction is made by this book between the terms ‘interactive information retrieval’ and ‘information retrieval’. Surely, in the current context of information seeking through web search engines, it is clear that information retrieval necessarily involves some form of interaction between searcher and system. An answer to this question li...

Public Transport Ontology for Passenger Information Retrieval

Passenger information aims at improving the user-friendliness of public transport systems while influencing passenger route choices to satisfy transit user’s travel requirements. The integration of transit information from multiple agencies is a major challenge in implementation of multi-modal passenger information systems. The problem of information sharing is further compounded by the multi-l...

Retrieval of phase information in neutron reflectometry.