Handwritten word verification by SVM-based hypotheses re-scoring and multiple thresholds rejection

International audienceIn the field of isolated handwritten word recognition, the development of verification systems that optimize the trade-off between performance and reliability is still an active research topic. To minimize the recognition errors, usually, a verification system is used to accept or reject the hypotheses produced by an existing recognition system. In this paper, a novel verification architecture is presented. In essence, the recognition hypotheses, re-scored by a set of the support vector machines, are validated by a verification mechanism based on multiple rejection thresholds. In order to tune these (class-dependent) rejection thresholds, an algorithm based on dynamic programming is proposed which focus on maximizing the recognition rate for a given prefixed error rate

Un nouveau système indépendant de rejet multi-seuils pour la reconnaissance de mots manuscrits

In the field of isolated handwritten word recognition, the development of highly effective verification systems to reject words that do not belong to the lexicon or present ambiguities is still an active research topic. In this paper, a novel verification architecture based on support vector machine scoring and on a new algorithm for tuning multiple reject class-dependent thresholds is presented. In essence, a set of support vector machines appended to a standard HMM based recognition system provides class-dependant confidence measures employed by the verification mechanism to accept or reject the recognized hypotheses. In order to tune these class-dependent rejection thresholds, an algorithm based on dynamic programming is proposed which focus on maximizing the recognition rate for a given imposed error rate. Preliminary reported results of experiments carried out on Techno-Vision program RIMES database show that this approach outperforms state of the art rejection methods.En reconnaissance de mots manuscrits, la capacité de rejeter les mots qui n'appartiennent pas au lexique ou présentent une ambiguïté est indispensable pour fiabiliser un système de reconnaissance utilisé en condition réelle. Dans cet article, un nouveau système de rejet reposant sur des classifieurs de type séparateur à vaste marge (SVM) et sur un algorithme original d'apprentissage de seuils multiples est présenté. En substance, nous proposons d'utiliser un ensemble de SVM pour réévaluer les hypothèses produites par un sys-tème de reconnaissance de mots classique à base de modèles de Markov cachés. Le mécanisme de vérification rejette ou accepte ces hypothèses en comparant leur mesure de confiance aux seuils de rejet. Un algorithme optimal de programmation dynamique qui vise à apprendre ces seuils de rejet en maximisant le taux de reconnaissance pour un taux d'erreur désiré est également détaillé. Les expérimentations ont été menées sur la base nationale RIMES du programme Techno-Vision et les résultats présentés montrent la supériorité de cette approche sur les autres méthodes existantes en fiabilité et en performance

Advances in Character Recognition

This book presents advances in character recognition, and it consists of 12 chapters that cover wide range of topics on different aspects of character recognition. Hopefully, this book will serve as a reference source for academic research, for professionals working in the character recognition field and for all interested in the subject

"Embedded Racism" In Japan's Official Registry Systems: Towards A Japanese Critical Race Theory

Critical Race Theory (CRT), grounded in American legal theories of power and dominance, has been increasingly applied to other countries to analyse racialised power relationships between social groups. Applying CRT to Japanese society, where "racism" is officially denied as a factor in the systemic differentiation of peoples into a dominant majority and disenfranchised minorities, nevertheless reveals racialised paradigms behind deciding who is a "member" of society (as in a citizen) and who is not (as in, a non-citizen), systematically allocating privilege to people with "Japanese blood." This research focuses on recent changes to Japan's official registry systems vis-à-vis non-citizens. Historically, the Family Registry (koseki) and the Resident Registry (jūmin kihon daichō) have employed biological conceits to give systemic advantages (in terms of citizenship, employment, access to social welfare and official recognition as residents and family members) to "Wajin" (Japan's dominant social group with "Japanese blood") over "Non-Wajin." Although the Resident Registry system was amended in July 2012 to allow equal registry of noncitizens, this research finds under CRT methodology that the dominant Wajin majority did not further enfranchise or cede power to the disenfranchised non-citizen minority. The reforms were merely cosmetic changes to a segregating system that remains largely intact in scope and enforcement

Special Libraries, February 1945

Volume 36, Issue 2https://scholarworks.sjsu.edu/sla_sl_1945/1001/thumbnail.jp

Special Libraries, February 1945

Volume 36, Issue 2https://scholarworks.sjsu.edu/sla_sl_1945/1001/thumbnail.jp

Otter Realm, December 1997, Vol. 2 No. 21

Fort Ord Toxic Clean-up Efforts -- CSUMB\u27s Environmental Impact Report Available -- CSUMB Hosts America Reads Awards -- An Interim Draft Policy for Responsible Computing? -- John Trudell: Can You Respond? -- 12th Annual Christmas Dinner -- O! Mistletoe! A Symbol of Love -- Kwanzaa: An African-American Celebration -- Chanukah-Festival of Lights -- Christmas Traditions -- Wellness Classes Introduce Foundations For Healthy Living -- BEAM and IMIE Collaborate to Introduce Entrepreneurship -- Black Box Improvedhttps://digitalcommons.csumb.edu/otterrealm/1025/thumbnail.jp

“Upselling,” a Peculiar Financial Practice : An Anthropological Contribution to the Deconstruction of a Case Study

Trabalho de Projecto apresentado para cumprimento dos requisitos necessários à obtenção do grau de Mestre em Antropologia dos Direitos Humanos e Movimentos Sociais.The current financial crisis which erupted in the fall of 2008 makes the practices of finance an important field to research. Anthropological interest in finance has been growing as the “subfield” of Anthropology of Finance demonstrates. In this project it is given a first contribution to the deconstruction of a peculiar financial practice called “upselling.” “Upselling” is a particular and unique method conceived and practiced by an English multinational foreign exchange corporation, which I encountered while residing in Denmark. It is an everyday mandatory practice and its goal is to maximize profit in every transaction done with every single one of its customers, which, furthermore, is not to be spoken of to no one, ever. Having “upselling” as a case study, the analysis and deconstruction of this everyday financial practice is extremely important and revealing for understanding the contemporary neoliberal ideological era. The research in this anthropological project has led to the exploratory hypothesis of considering it a deceitful financial practice