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Existing antivirus programs detect malicious code based on fixed signatures; therefore, they have limitations in detecting metamorphic malicious code that lacks signature information or possesses circumventing code inserted into it. Research on the methods for detecting this type of metamorphic malicious code primarily focuses on techniques that can detect code based on behavioral similarity to known malicious code. However, these techniques measure the degree of similarity with existing malicious code using API function call patterns. Therefore, they have certain disadvantages, such as low accuracy and large detection times. In this paper, we propose a method which can overcome the limitations of existing methods by using the FP-Growth algorithm, a data mining technique, and the Markov Logic Networks algorithm, a probabilistic inference method. To perform a comparative evaluation of the proposed method's malicious code behavior detection, we performed inference experiments using malicious code with an inserted code for random malicious behavior. We performed experiments to select optimal weights for each inference rule to improve our malicious code behavior inferences’ accuracy. The results of experiments, in which we performed a comparative evaluation with the General Bayesian Network, showed that the proposed method had an 8% higher classification performance. 相似文献
34.
大学生网络成瘾倾向与父母教养方式关系研究 总被引:56,自引:0,他引:56
本文使用父母教养方式评价量表(EMBU)和网络成瘾倾向自陈量表,对陕西四所高校大学生进行调查,结果表明,网络成瘾倾向者与非网络成瘾倾向者父母教养方式差异较为显著,表现在过分干涉、惩罚严厉、拒绝否定等方面。 相似文献
35.
Flickering light induces visual hallucinations in human observers. Despite a long history of the phenomenon, little is known about the dependence of flicker-induced subjective impressions on the flicker frequency. We investigate this question using Ganzfeld stimulation and an experimental paradigm combining a continuous frequency scan (1–50 Hz) with a focus on re-occurring, whole percepts. On the single-subject level, we find a high degree of frequency stability of percepts. To generalize across subjects, we apply two rating systems, (1) a set of complex percept classes derived from subjects’ reports and (2) an enumeration of elementary percept features, and determine distributions of occurrences over flicker frequency. We observe a stronger frequency specificity for complex percept classes than elementary percept features. Comparing the similarity relations among percept categories to those among frequency profiles, we observe that though percepts are preferentially induced by particular frequencies, the frequency does not unambiguously determine the experienced percept. 相似文献
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Beebe B Badalamenti A Jaffe J Feldstein S Marquette L Helbraun E Demetri-Friedman D Flaster C Goodman P Kaminer T Kaufman-Balamuth L Putterman J Stepakoff S Ellman L 《Journal of psycholinguistic research》2008,37(5):293-307
The prediction of events and the creation of expectancies about their time course is a crucial aspect of an infant's mental life, but temporal mechanisms underlying these predictions are obscure. Scalar timing, in which the ratio of mean durations to their standard deviations is held constant, enables a person to use an estimate of the mean for its standard deviation. It is one efficient mechanism that may facilitate predictability and the creation of expectancies in mother-infant interaction. We illustrate this mechanism with the dyadic gaze rhythm of mother and infant looking at and looking away from each other's faces. Two groups of Hi- and Lo-Distress mothers were created using self-reported depression, anxiety, self-criticism and childhood experiences. Lo-Distress infants (controls) used scalar timing 100% of the time, about double that of Hi-Distress infants. Lo-Distress mothers used scalar timing about nine times as much as Hi-Distress mothers. The diminished use of scalar timing patterns in Hi-Distress mothers and infants may make the anticipation of each other's gaze patterns more difficult for both partners. 相似文献
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Beata Stawarska 《Continental Philosophy Review》2008,41(2):217-236
I engage phenomenological and empirical perspectives on dialogical relations in infancy in a mutually enlightening and challenging
relation. On the one hand, the empirical contributions provide evidence for the primacy of first-to-second person interrelatedness
in human sociality, as opposed to the claim of primary syncretism heralded by Merleau-Ponty, and also in distinction from
the ego-alter ego model routinely used in phenomenology. On the other hand, phenomenological considerations regarding the
lived affective experience of dialogical relatedness enrich and render intelligible the psychological accounts of dialogue
in terms of observable behavior. Phenomenological and empirical perspectives on dialogical relatedness thus combine to offer
an affectively charged and conversationally patterned notion of primary intersubjectivity in the I-you mode.
相似文献
Beata StawarskaEmail: |
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Abstract: In this study, the relationships between husbands' attitudes towards gender roles and their psychological well-being were examined in 244 middle-aged men who had a working wife. Employment patterns of the wives were separated into full-time employment and part-time employment, and a model showing relationships among factors, such as attitudes towards gender roles, workplace satisfaction, and subjective well-being of the husbands, was created and analyzed using a structural equation model. Attitudes towards gender roles comprised gender conception and the view on gender-based division of work. Husbands with a wife employed part-time that held a stronger gender conception had a lower subjective well-being, mediated by their lower workplace satisfaction. However, the view of husbands with a wife employed full-time on gender-based division of work was directly related to subjective well-being. That is, the husband's subjective well-being was lower when support of gender-based division of work was stronger. 相似文献
39.
Corinna Reichl F.-Sophie Wach Frank M. Spinath Roland Brünken Julia Karbach 《Journal of Vocational Behavior》2014
The present study identified individual variables by which first-year teacher students' risk for burnout can be detected at an early stage. We analyzed a sample of teacher students (n = 559) and a control group of psychology students (n = 150) by using multinomial logistic regression analyses. We estimated the impact of personality (Five-Factor model) and motivation for choosing teacher education on work-related coping behavior and experiences (WCEP types: healthy-ambitious, unambitious, excessively-ambitious, and risk for burnout). Neuroticism and the extrinsic motivation of choosing teacher education (the assumed low difficulty of studies) were risk factors for unhealthy, stress-related coping behavior and experiences. In contrast, high levels of extraversion and conscientiousness as well as intrinsic motivation for choosing teacher education (subject-specific interest) were related to healthy-ambitious behavior. Relations of personality and stress-related WCEP types were partially moderated according to field of study (teaching versus psychology). Our results are of particular importance for improving counseling programs that advise prospective teacher students regarding their individual fit to the requirements and challenges of the teaching profession and for correcting false expectations about study demands. 相似文献
40.
Jennifer L. Hudson Michael Gradisar Carolyn A. Schniering 《Behaviour research and therapy》2009,47(4):339-344
Childhood sleep problems have been associated with a range of adverse cognitive and academic outcomes, as well as increased impulsivity and emotional disorders such as anxiety and depression. The aim of the study was to examine subjective reports of sleep-related problems in children with anxiety disorders during school and weekend nights. Thirty-seven children with clinically-diagnosed anxiety disorders and 26 non-clinical children aged 7-12 years completed an on-line sleep diary to track sleep patterns across school nights and weekend nights. Anxious children reported going to bed significantly later (p = 0.03) and had significantly less sleep (p = 0.006) on school nights compared to non-anxious children. No significant differences in sleep onset latency, number of awakenings or time awake during the night, daytime sleepiness, or fatigue were found between the two groups. On the weekends, anxious children fell asleep quicker and were less awake during the night than on weeknights. School-aged anxiety disordered children showed a sleep pattern that differs from their non-anxious peers. Although the mean 30 min less sleep experienced by anxious children may initially seem small, the potential consequences on daytime performance from an accumulation of such a sleep deficit may be significant, and further investigation is warranted. 相似文献