scholarly journals Automatic Staff Reconstruction within SIMSSA Project

2020 ◽  
Vol 10 (7) ◽  
pp. 2468
Author(s):  
Lorenzo J. Tardón ◽  
Isabel Barbancho ◽  
Ana M. Barbancho ◽  
Ichiro Fujinaga

The automatic analysis of scores has been a research topic of interest for the last few decades and still is since music databases that include musical scores are currently being created to make musical content available to the public, including scores of ancient music. For the correct analysis of music elements and their interpretation, the identification of staff lines is of key importance. In this paper, a scheme to post-process the output of a previous musical object identification system is described. This system allows the reconstruction by means of detection, tracking and interpolation of the staff lines of ancient scores from the digital Salzinnes Database. The scheme developed shows a remarkable performance on the specific task it was created for.

Fire ◽  
2021 ◽  
Vol 4 (4) ◽  
pp. 75
Author(s):  
Federico Guede-Fernández ◽  
Leonardo Martins ◽  
Rui Valente de Almeida ◽  
Hugo Gamboa ◽  
Pedro Vieira

Forest fires are still a large concern in several countries due to the social, environmental and economic damages caused. This paper aims to show the design and validation of a proposed system for the classification of smoke columns with object detection and a deep learning-based approach. This approach is able to detect smoke columns visible below or above the horizon. During the dataset labelling, the smoke object was divided into three different classes, depending on its distance to the horizon, a cloud object was also added, along with images without annotations. A comparison between the use of RetinaNet and Faster R-CNN was also performed. Using an independent test set, an F1-score around 80%, a G-mean around 80% and a detection rate around 90% were achieved by the two best models: both were trained with the dataset labelled with three different smoke classes and with augmentation; Faster R-CNNN was the model architecture, re-trained during the same iterations but following different learning rate schedules. Finally, these models were tested in 24 smoke sequences of the public HPWREN dataset, with 6.3 min as the average time elapsed from the start of the fire compared to the first detection of a smoke column.


Author(s):  
V. K. Zheleznyak ◽  
V. B. Tolubko ◽  
L. P. Kriuchkova ◽  
A. P. Provozin

In the work the technology of radio-frequency identification of objects with inductive coupling is considered, using passive electric oscillating circuits tuned to fixed frequencies from the working frequency range as identification features of the object. The choice of the primary measuring transducer and the informative parameter is based on the results of the analysis of the system of inductively coupled active and passive electric oscillation circuits, known from the theory of radio engineering circuits. The parameters of the measuring transducer ensuring the fulfillment of the requirements for identification and localization of objects specified by technological conditions are substantiated. Factors that are potentially dangerous with respect to reducing the information reliability of the measuring transducer are considered, as well as the possibility of reducing their influence to a minimum. The problems of experimental research are formulated. It is shown that the analysis can be performed by software discrete adjustment of the primary measuring transducer and the generator feeding it. In this case, the task of increasing the speed is targeted at decreasing the duration of the step of tuning the primary measuring transducer. The required reliability of object identification is achieved by: ensuring high stability of the frequencies of the generator supplying the primary measuring transducer; accuracy and stability of tuning of the primary measuring transducer to the frequencies of the supplying generator; protection of the primary measuring transducer from the influence of interference generated by external sources and other measuring converters of the object identification system (electromagnetic compatibility of the object identification system); sufficient magnitude of the response of the primary measuring transducer to the introduction of passive electrical oscillation circuits; sufficient frequency tuning interval for passive electric oscillation circuits; accuracy and stability of tuning of passive electric oscillation circuits; stability of the detection threshold relative to the initial level of the informative parameter. Electromagnetic compatibility of measuring transducers, whose sensing elements are in the zone of mutual influence, is provided by synchronizing the operation of measuring transducers with shunting of inactive sensors, screening, mutual orientation and spacing of sensing elements.


ForScience ◽  
2019 ◽  
Vol 7 (2) ◽  
Author(s):  
Cátia Valéria Dos Santos Passos Brito ◽  
Welson Barbosa Dos Santos ◽  
Cristiane Xavier Galhardo ◽  
Vivianni Marques Leite dos Santos

A realização de um inventário não é uma tarefa fácil, principalmente em universidades federais, que possuem muitos bens permanentes. A gestão patrimonial é realizada através de procedimentos de identificação, tombamento, localização, contagem, preservação e desfazimento de bens. Devido a grande quantidade de informações e necessidade de segurança, confiabilidade e celeridade nos processos, deve-se buscar alternativas para melhorar a gestão, reduzir índices de não conformidades e aprimorar o planejamento de compras. O sistema RFID (Radio-Frequency Identification), por exemplo, funciona por meio da comunicação via radiofrequência, com uso de um chip passivo inserido em etiqueta inteligente. Dessa forma, o objetivo deste artigo é analisar a viabilidade do uso da tecnologia RFID para o aperfeiçoamento da gestão patrimonial na Universidade Federal do Vale do São Francisco - Univasf por meio do levantamento de suas vantagens, desvantagens e custos para implantação. Para isto, são realizadas pesquisas em periódicos e bases de patentes, além da realização de entrevistas e análise documental. Entre os principais resultados, constata-se que o processo de gerenciamento de bens da Univasf é realizado de forma manual e desgastante para servidores membros de comissão, para a qual são convocados sem consulta prévia, verificando-se ainda que os prazos são, comumente, ultrapassados. Por outro lado, o custo para implantação do sistema RFID para controle do número atual de bens da Univasf corresponde a apenas 0,78% do valor alocado para as ações orçamentárias referentes às despesas correntes e investimentos, constituindo fatores favoráveis a sua aquisição pela Instituição.Palavras-chave: Radiofrequência. Gestão patrimonial. Universidades públicas. Internet das coisas. Smart tags in the public administration: feasibility analysis in thepatrimonial control of the UNIVASFAbstractThe construction of an inventory is not an easy task, especially at federal universities, which have many permanent assets. The patrimonial management is carried through procedures of identification, tipping, localization, counting, preservation and undoing of assets. Due to the large amount of information and the need for security, reliability and speed in the processes, alternatives should be sought to improve management, reduce nonconformity rates, and improve procurement planning. The RFID (Radio Frequency Identification) system, for example, works by means of radio frequency communication, using a passive chip inserted in a smart tag. Thus, the objective of this paper is to analyze the feasibility of using RFID technology to improve asset management at the Federal University of Vale do São Francisco -Univasf by surveying its advantages, disadvantages and costs for implementation. For this, research is carried out in journals and patent bases, as well as interviews and document analysis. Among the main results, it can be seen that Univasf's asset management process is carried out manually and exhausting for commission member servers, to which they are summoned without prior consultation, and it is also verified that the deadlines are commonly outdated. On the other hand, the cost of implementing the RFID system to control Univasf's current number of assets corresponds to only 0.78% of the amount allocated to budget actions related to current expenses and investments, constituting favorable factors for their acquisition by the Institution.Keywords: Radiofrequency. Patrimonial Management. Public universities. Internet of things. 


Author(s):  
Ioannis Karydis ◽  
Alexandros Nanopoulos ◽  
Yannis Manolopoulos

This chapter provides a broad survey of music data mining, including clustering, classification and pattern discovery in music. The data studied is mainly symbolic encodings of musical scores, although digital audio (acoustic data) is also addressed. Throughout the chapter, practical applications of music data mining are presented. Music data mining addresses the discovery of knowledge from music corpora. This chapter encapsulates the theory and methods required in order to discover knowledge in the form of patterns for music analysis and retrieval, or statistical models for music classification and generation. Music data, with their temporal, highly structured and polyphonic character, introduce new challenges for data mining. Additionally, due to their complex structure and their subjectivity to inaccuracies caused by perceptual effects, music data present challenges in knowledge representation as well.


Sensors ◽  
2020 ◽  
Vol 20 (15) ◽  
pp. 4225
Author(s):  
Bartosz Pawłowicz ◽  
Bartosz Trybus ◽  
Mateusz Salach ◽  
Piotr Jankowski-Mihułowicz

The paper covers the application of Radio Frequency IDentification (RFID) technology in road traffic management with regard to vehicle identification. Various infrastructure configurations for Automated Vehicle Identification (AVI) have been presented, including configurations that can be used in urban traffic as part of the Smart City concept. In order to describe the behavior of multiple identifications of moving vehicles, an operation model of the dynamic identification using RFID is described. While it extends the definition of the correct work zone, this paper introduces the concept of dividing the zone into sections corresponding to so-called inventory rounds. The system state is described using a set of matrices in which unread, read, and lost transponders are recorded in subsequent rounds and sections. A simplified algorithm of the dynamic object identification system was also proposed. The results of the simulations and lab experiments show that the efficiency of mobile object identification is conditioned by the parameters of the communication protocol, the speed of movement, and the number of objects.


Sensors ◽  
2019 ◽  
Vol 19 (20) ◽  
pp. 4392 ◽  
Author(s):  
Mariusz Węglarski ◽  
Piotr Jankowski-Mihułowicz

A general view on the problem of designing atypical battery-free, autonomous semi-passive RFID transponders-sensors (autonomous sensors with RFID interfaces) is presented in this review. Although RFID devices can be created in any of the electronic technologies, the design stage must be repeated each time when the manufacturing processes are changed, and their specific conditions have to be taken into consideration when modeling new solutions. Aspects related to the factors affecting the synthesis of semi-passive RFID transponder components on the basis of which the idea of the autonomous RFID sensor was developed are reflected in the paper. Besides their general characteristics, the operation conditions of modern RFID systems and achievements in autonomous RFID sensor technology are revealed in subsequent sections—they include such issues as technological aspects of the synthesis process, designing antennas for RFID transponders, determining RFID chip and antenna parameters, creating the interrogation zone IZ, etc. It should be pointed that the universal construction of an autonomous RFID sensor, which could be use in any application of the automatic object identification system, cannot be developed according to the current state of the art. Moreover, a trial and error method is the most commonly used in the today’s process of designing new solutions, and the basic parameters are estimated on the basis of the tests and the research team experience. Therefore, it is necessary to look for new inventions and methods in order to improve implementations of RFID systems.


2017 ◽  
Vol 20 (1) ◽  
pp. 52-79
Author(s):  
Rachel Misrati

The fascinating story of the creation and development of this unique collection is matched only by the collection's importance as a resource of primary material for research in the social sciences, the humanities, and even the exact sciences. With over five and a half thousand leading Jewish personalities represented in their original handwriting, Abraham Schwadron's autograph collection is more than just the first Jewish Who's Who. The inscribed visiting cards, literary manuscripts, handwritten letters, and even musical scores are all evidence of a Jewish social milieu and cultural enterprise that stretches from the sixteenth century to the present day. The collection is a written record of the history of the Jewish people as it unfolded. No less dramatic is the man behind the collection, who from his youth in Galicia decided he would build a national Jewish autograph collection for the Jewish people and bring it to Jerusalem. The National Library of Israel is presently working to make this whole collection accessible to the public, first by rendering the collection searchable through the Library's online catalogue and then by digitizing the entire collection of autographs. This article traces the history of the collection, introduces the intriguing figure of Abraham Schwadron and his rationale for building the collection, and reveals the many ways that the collection's rich and fascinating potential can be used as a resource of original source material. At the end of the article there is brief reference to the National Library of Israel's project for digitizing the collection.


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