Search Results for author: Giuseppe Ottaviano

Found 4 papers, 3 papers with code

Autoregressive Search Engines: Generating Substrings as Document Identifiers

3 code implementations22 Apr 2022 Michele Bevilacqua, Giuseppe Ottaviano, Patrick Lewis, Wen-tau Yih, Sebastian Riedel, Fabio Petroni

Knowledge-intensive language tasks require NLP systems to both provide the correct answer and retrieve supporting evidence for it in a given corpus.

Information Retrieval Retrieval

Cache-Oblivious Peeling of Random Hypergraphs

1 code implementation2 Dec 2013 Djamal Belazzougui, Paolo Boldi, Giuseppe Ottaviano, Rossano Venturini, Sebastiano Vigna

The computation of a peeling order in a randomly generated hypergraph is the most time-consuming step in a number of constructions, such as perfect hashing schemes, random $r$-SAT solvers, error-correcting codes, and approximate set encodings.

Data Structures and Algorithms

Compressible Motion Fields

no code implementations CVPR 2013 Giuseppe Ottaviano, Pushmeet Kohli

Traditional video compression methods obtain a compact representation for image frames by computing coarse motion fields defined on patches of pixels called blocks, in order to compensate for the motion in the scene across frames.

Motion Compensation Optical Flow Estimation +1

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