Recently some CBIR approaches have shown the use of relevance feedback to train a pattern classifier to select relevant images for retrieval. This paper revisits this strategy by using an optimum-path forest (OPF) classifier. During relevance feedback iterations, the proposed method uses the OPF classifier to decide which database images are relevant or not. Images classified as relevant are so...

A rule based system for speech verification is proposed as a feedback mechanism for speech recognition. The system provides an explicit way ofselecting verification parameters depending on the item to be recognized and its context. An extended continuous logic is used to combine the evidence from different parameters and an automatic way to convert parameter values to logic evidence values is g...

Pseudo-relevance feedback is a common technique in information retrieval. Content Based Information Retrieval systems (CBIR), like visual retrieval engines, suffer from low performance due to the distance between the semantic interpretation of an image and its visual features. This is the reason why such a systems are empowered when textual information is associated to the images in the collect...

Research in L1 writing has found numerous benefits of employing collaborative learning in the classroom. The research findings on group work provide clear evidence that engaging learners in group activities increases opportunities for students to engage in the negotiation of meaning, which further leads to better acquisition. The present study, implementing two different collaborative feedback ...

In this paper, a novel method is developed for designing the output feedback controller for Static Synchronous Series Compensator (SSSC). In the proposed method, the problem of selecting the output feedback gains for the SSSC controllers is changed into an optimization problem with a time domain-based objective function.Then, it is solved by using the particle swarm optimization (PSO) algorithm...

Abstract: For this year our team participated in the medical image retrieval task. Most of our effort was invested in processing the collection using Metamap to assign Unified Medical Language System (UMLS) concepts to each of the images that included some associated text. This process generated metadata that was added to each image and included the UMLS concept number as well as the primary te...

One skill that student teachers need to develop during their academic studies is the capacity to produce accurate and well-organized texts. This study reports on the comparative impact of metalinguistic feedback (MLF), teacher interactive feedback (TIF(, and the peer-feedback (PF) on the accuracy and organization of postgraduate ELT student teachers’ writing. The participants were 57 postgradua...