Relevance feedback is a mechanism to interactively learn the user’s query concept online, and has been extensively used to improve the performance of multimedia information retrieval. In this paper, we present a novel interactive pattern analysis method, which reduces the relevance feedback to a two-class classification problem, and classifies multimedia objects as relevant or irrelevant. From ...

Despite the efforts to reduce the so-called semantic gap between the user s perception of image similarity and feature-based representation of images, the interaction with the user remains fundamental to improve performances of content-based image retrieval systems. To this end, relevance feedback mechanisms are adopted to refine image-based queries by asking users to mark the set of images ret...

This paper proposes an approach to personalization by relevance `ranking’ feedback in impression-based retrieval for a multimedia database. Impression-based retrieval is a kind of ambiguous retrieval, and it enables a database user to find not only a known data but also an unknown data to him/her. Conventional approaches using relevance feedback technique only return a binary information: `rele...

The effect of error feedback on the accuracy of output task types such as editing task, text reconstruction task, picture cued writing task, and dictogloss task, has not been clearly explored. Following arguments concerning that the combination of both corrective feedback and output makes it difficult to determine whether their effects were in combination or alone, the purpose of the present st...

Abstract The extent to which teachers’ written corrective feedback (WCF) is conducive to ESL learners’ improvement has been discussed since Truscott’s claim in 1996. The mentioned debate continues because there has been lots of contrastive research studies with different results. This paper presents the results of a 2-month study of the effectiveness of WCF to 65 low intermediate Iranian learne...

Simulated interviews in alleged child sexual abuse (CSA) cases with computer-generated avatars paired with feedback improve interview quality. In the current study, we aimed to understand better the effect of different types of feedback in this context. Feedback was divided into feedback regarding conclusions about what happened to the avatar (outcome feedback) and feedback regarding the approp...

Despite predictions following from cognitive theories of anxiety, evidence for memory biases in social anxiety has been mixed. This study extends previous research by using stimuli relevant to participants' concerns and allowing time for post-event processing. Participants high (n=42) or low (n=39) in social anxiety symptoms gave speeches and received standardized feedback on their and a confed...

Two experiments were carried out to estimate the effect of sound feedback: (1) operating an assembly line simulator (Experiment-A with sound feedback of hidden events), and (2) queries in database search (Experiment-B with sound feedback of the search result quality). ExperimentA: Relevant information of hidden events (e.g., disturbances and machine break downs) was given only in a visual, and ...

Most users of prosthetic hands must rely on visual feedback alone, which requires visual attention and cognitive resources. Providing haptic feedback of variables relevant to manipulation, such as contact force, may thus improve the usability of prosthetic hands for tasks of daily living. Vibrotactile stimulation was explored as a feedback modality in ten unimpaired participants across eight se...