155,905 research outputs found

    Hand2Face: Automatic Synthesis and Recognition of Hand Over Face Occlusions

    Full text link
    A person's face discloses important information about their affective state. Although there has been extensive research on recognition of facial expressions, the performance of existing approaches is challenged by facial occlusions. Facial occlusions are often treated as noise and discarded in recognition of affective states. However, hand over face occlusions can provide additional information for recognition of some affective states such as curiosity, frustration and boredom. One of the reasons that this problem has not gained attention is the lack of naturalistic occluded faces that contain hand over face occlusions as well as other types of occlusions. Traditional approaches for obtaining affective data are time demanding and expensive, which limits researchers in affective computing to work on small datasets. This limitation affects the generalizability of models and deprives researchers from taking advantage of recent advances in deep learning that have shown great success in many fields but require large volumes of data. In this paper, we first introduce a novel framework for synthesizing naturalistic facial occlusions from an initial dataset of non-occluded faces and separate images of hands, reducing the costly process of data collection and annotation. We then propose a model for facial occlusion type recognition to differentiate between hand over face occlusions and other types of occlusions such as scarves, hair, glasses and objects. Finally, we present a model to localize hand over face occlusions and identify the occluded regions of the face.Comment: Accepted to International Conference on Affective Computing and Intelligent Interaction (ACII), 201

    Processing of regular and irregular past tense morphology in highly proficient second language learners of English: a self-paced reading study

    Get PDF
    Dual-system models suggest that English past tense morphology involves two processing routes: rule application for regular verbs and memory retrieval for irregular verbs (Pinker, 1999). In second language (L2) processing research, Ullman (2001a) suggested that both verb types are retrieved from memory, but more recently Clahsen and Felser (2006) and Ullman (2004) argued that past tense rule application can be automatised with experience by L2 learners. To address this controversy, we tested highly proficient Greek-English learners with naturalistic or classroom L2 exposure compared to native English speakers in a self-paced reading task involving past tense forms embedded in plausible sentences. Our results suggest that, irrespective to the type of exposure, proficient L2 learners of extended L2 exposure apply rule-based processing

    Production Methods

    Get PDF

    Transformation of the French Pattern of a Naturalistic Character in Ivan Franko’s Literary Works

    Get PDF
    The article deals with the means of constructing a naturalistic character, the model for which was proposed by French writers: the Goncourt brothers and Émile Zola. Naturalists draw their personage concept from the interpretation of its biological nature. The focus of its depiction is shifted to the study of fundamental features of human nature rather than “variables” of the historical forms of its manifestation. A naturalistic character, being “a biological being” rather than “a set of social relations,” is completely absorbed by the environment. The “social” core of a realistic personage is based on the principles of typification, but the “biological” core of a naturalistic character cannot be a generalized type because in it the individual prevails over the typified. Images of Germinie Lacerteux and Thérèse Raquin from the Goncourts’ and Zola’s same-name novels respectively are considered to be prototypes of naturalistic characters. In Ukrainian literature, Ivan Franko interpreted and synthesized Western European experience using realistic and naturalistic art to create his own concept of “scientific realism.” The difference in Franko’s personage construction lies in the fact that he does not confine himself to the observation and description of his heroes’ behavior but offers a plan for correcting their deficiencies

    Age differences in prospective memory: Laboratory versus naturalistic settings

    Get PDF
    Prospective memory (PM) is the ability to remember and perform intended actions at the appropriate point in the future. PM is a cognitive ability that is vital to many aspects of daily functioning, and it is particularly important for older adults who wish to maintain functional independence. The overall aim of this thesis was to investigate factors that potentially contribute to the age-PM paradox. The age-PM paradox refers to the contrasting age effects on PM performance with age-related deficits observed on laboratory tasks, but no age differences or even age-related benefits observed on naturalistic tasks. Several proposed factors that possibly contribute to the age-PM paradox were examined in two tangential studies. Firstly, a descriptive study of self-directed PM tasks in daily life was conducted. The study examined how the context of PM task completion in the real world might vary between young and older adults, as such differences may contribute to age differences in naturalistic PM performance. To improve upon previous naturalistic studies, the study employed an experience-sampling method to capture PM successes and failures throughout the day. Contrary to popular belief, the findings suggest that dissimilarities in the demands of everyday life and the usage of external reminders, such as diaries, cannot explain the improved naturalistic PM performance of older adults. However, older adults were found to regard their PM tasks as important more often than young adults. Older adults also rehearsed their PM intentions more frequently than young adults. Thus, it is possible that the age benefit observed in naturalistic settings is related to older adults’ motivation and their ability to plan and rehearse their PM tasks within their own environment. Relatively few instances of PM failures were reported by both age groups. Further evidence suggests that participants retrieved their PM intentions through both spontaneous retrieval and strategic monitoring processes, which provides support for the multiprocess framework of PM. The second study rigorously examined whether the comparison of inherently dissimilar tasks could be contributing to the age-PM paradox. Laboratory PM tasks are predominantly event-based tasks, while naturalistic PM tasks are typically time-based, occurring at a set time of day. To address the lack of task comparability across settings, novel naturalistic PM measures were developed to objectively assess PM performance on three types of tasks: event-based, scheduled time-based (typical of prior naturalistic studies), and time-check tasks (typical of prior laboratory studies). The study is the first investigation of age differences in laboratory and naturalistic settings on all three types of PM tasks using the same participant sample in both settings. Laboratory PM performance was assessed using a computerised version of Virtual Week, which simulates activities of daily life in a board game format. Naturalistic PM performance was assessed using smartphones and an application developed specifically for this thesis. In the laboratory, age-related deficits were observed on all three task types. However, in the naturalistic setting, older adults performed better than young adults on scheduled time-based tasks, performed just as well as the young adults on event-based tasks, and performed equally poorly on time-check tasks. The findings suggest that older adults demonstrate improved PM performance in everyday life when the PM tasks possess an event-like quality, which allows for further environmental support for successful task completion. Regardless of the setting, older adults consistently exhibited poor performance on time-check tasks. This finding suggests that older adults’ PM performance suffers when the PM tasks are particularly demanding and rely heavily on effortful monitoring processes for intention retrieval. Overall, the current research suggests that the age-PM paradox cannot be completely explained by contextual differences surrounding naturalistic PM performance or by the lack of task comparability across settings in the existing literature. However, given the substantial improvement in older adults’ naturalistic performance on scheduled time-based tasks, but not on time-check tasks, this thesis highlights the importance of this relatively rare time-based task distinction when considering the age-PM paradox. Taken together, the studies indicate that older adults’ naturalistic PM performance benefits from explicit cues, environmental support, and the ability to plan and rehearse PM intentions

    Peoples’ use of, and concerns about, green space networks: A case study of Birchwood, Warrington New Town, UK

    Get PDF
    Cultural services provided by green space networks and in particular leisure and recreational opportunities are central to the quality of life of those living in urban areas. However, the literature concerned with green space networks has mainly focussed on planning aspects rather than on recreational use. The aim of this study was to evaluate the recreational use of, and concerns about, a naturalistic green space network. The case study location was the naturalistic woodland framework in Birchwood, Warrington, UK, known as Birchwood Forest Park. Non-participant observation and content analysis of local archives were used to collect quantitative and qualitative data. Birchwood Forest Park was used more for leisure activities (52.8%, N = 1,825; i.e. recreation, sports or play) than for utilitarian purposes (47.2%, N = 1,825; i.e. as walking or cycling thoroughfare). However, utilitarian walking (30%, N = 1,825) was the most frequent type of activity observed. The maintenance of the naturalistic woodland framework was the most frequent concern mentioned in the local archives (33.3%, N = 234). This case study suggests that the recreational patterns in, as well as peoples’ concerns about, naturalistic urban landscapes may be a factor of high quality maintenance and associated local aesthetic and cultural perceptions. In developing, planning or managing comprehensive urban green space networks it is important to ensure that natural looking scenes are well maintained and that the local community is culturally connected to such scenes
    corecore