TY - BOOK
T1 - Learning to Rank Words
T2 - Optimizing Ranking Metrics for Word Spotting
AU - Riba, Pau
AU - Molina, Adrià
AU - Gomez, Lluis
AU - Ramos-Terrades, Oriol
AU - Lladós, Josep
N1 - Publisher Copyright:
© 2021, Springer Nature Switzerland AG.
PY - 2021
Y1 - 2021
N2 - In this paper, we explore and evaluate the use of ranking-based objective functions for learning simultaneously a word string and a word image encoder. We consider retrieval frameworks in which the user expects a retrieval list ranked according to a defined relevance score. In the context of a word spotting problem, the relevance score has been set according to the string edit distance from the query string. We experimentally demonstrate the competitive performance of the proposed model on query-by-string word spotting for both, handwritten and real scene word images. We also provide the results for query-by-example word spotting, although it is not the main focus of this work.
AB - In this paper, we explore and evaluate the use of ranking-based objective functions for learning simultaneously a word string and a word image encoder. We consider retrieval frameworks in which the user expects a retrieval list ranked according to a defined relevance score. In the context of a word spotting problem, the relevance score has been set according to the string edit distance from the query string. We experimentally demonstrate the competitive performance of the proposed model on query-by-string word spotting for both, handwritten and real scene word images. We also provide the results for query-by-example word spotting, although it is not the main focus of this work.
KW - Ranking loss
KW - Smooth-AP
KW - Smooth-nDCG
KW - Word spotting
UR - http://www.scopus.com/inward/record.url?scp=85115346917&partnerID=8YFLogxK
U2 - 10.1007/978-3-030-86331-9_25
DO - 10.1007/978-3-030-86331-9_25
M3 - Proceeding
AN - SCOPUS:85115346917
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
BT - Learning to Rank Words
PB - Springer Science and Business Media Deutschland GmbH
ER -