Graph-based keyword spotting in historical handwritten documents

M Stauffer, A Fischer, K Riesen - Joint IAPR International Workshops on …, 2016 - Springer
… method for keyword spotting in … keyword spotting is then conducted by a recent approximation
algorithm for graph edit distance. The novel framework for graph-based keyword spotting

Graph-based keyword spotting in historical manuscripts using Hausdorff edit distance

MR Ameri, M Stauffer, K Riesen, TD Bui… - Pattern Recognition …, 2019 - Elsevier
Keyword spotting enables content-based retrieval of … Recent approaches include graph-based
representations that … edit distance (HED) for keyword spotting. It is an efficient quadratic-…

[BOOK][B] Graph-based Keyword Spotting

M Stauffer, A Fischer, K Riesen - 2019 - World Scientific
The visualisation of the four different graph representation formalisms (ie Keypoint, Grid,
Projection, and Split) is based on graphs with different mean numbers of nodes (ie small= 25-50 …

Speeding-up graph-based keyword spotting in historical handwritten documents

M Stauffer, A Fischer, K Riesen - International Workshop on Graph-Based …, 2017 - Springer
… The present paper is concerned with a graph-based system for Keyword Spotting (KWS)
in historical documents. This particular system operates on segmented words that are in turn …

HMM word graph based keyword spotting in handwritten document images

AH Toselli, E Vidal, V Romero, V Frinken - Information Sciences, 2016 - Elsevier
Line-level keyword spotting (KWS) is presented on the basis of frame-level word posterior
probabilities. These posteriors are obtained using word graphs derived from the recognition …

Word-graph-based handwriting keyword spotting of out-of-vocabulary queries

J Puigcerver, AH Toselli, E Vidal - 2014 22nd International …, 2014 - ieeexplore.ieee.org
Thanks to the use of lexical and syntactic information, Word Graphs (WG) have shown to
provide a competitive Precision-Recall performance, along with fast lookup times, in …

Ensembles for graph-based keyword spotting in historical handwritten documents

M Stauffer, A Fischer, K Riesen - 2017 14th IAPR International …, 2017 - ieeexplore.ieee.org
… In this paper a procedure to build an ensemble for the task of graph-based keyword
spotting is presented. Rather than representing a word by a single graph representation, the …

Keyword spotting in historical handwritten documents based on graph matching

M Stauffer, A Fischer, K Riesen - Pattern Recognition, 2018 - Elsevier
… for template-based keyword spotting in historical handwritten … Moreover, we extend our
method to a spotting ensemble. In … methods for template- and learning-based keyword spotting. …

Filters for graph-based keyword spotting in historical handwritten documents

M Stauffer, A Fischer, K Riesen - Pattern Recognition Letters, 2020 - Elsevier
The accessibility to handwritten historical documents is often constrained by the limited feasibility
of automatic full transcriptions. Keyword Spotting (KWS), that allows to retrieve arbitrary …

Graph based keyword spotting in medieval slavic documents–a project outline

K Riesen, D Brodić, ZN Milivojević… - Euro-Mediterranean …, 2014 - Springer
… A very important aspect of the whole project is the experimental evaluation of our novel
graph based procedure for keyword spotting. We plan to carry out exhaustive experimental …