مطالب

Corner detection, crucial for many computer vision tasks due to corner's distinct structural properties, often relies on traditional intensity-based detectors developed before 2000. This paper introduces a novel intensity-based corner detector that surpasses existing methods by solely analyzing pixel intensity within a 3×3 neighborhood. Our approach leverages a unique corner response function derived from intensity sorting and difference calculations. We conduct a comprehensive evaluation comparing our detector to seven established algorithms using five benchmark images with ground truth corner locations. The evaluation encompasses detection accuracy, localization error under varying noise levels, and repeatability under transformations and degradations. This assessment utilizes 28 diverse images without ground truth data. Experimental results demonstrate the proposed detector's superior overall performance by 3%. It achieves better accuracy in corner localization and reduces both missed detections and false positives. Furthermore, requiring only one parameter for adjustment, it offers computational efficiency and real-time processing potential. Additionally, the generated corner response map holds promise for integration with deep learning architectures, opening possibilities for further exploration.

Classroom-based assessment (CBA) as one of the constructs of formative assessment has been considered highly significant in recent years. Consequently, various tools have been designed to investigate teachers` CBA needs and deficiencies ignoring different levels of teachers` CBA literacy. Thus, the present study researchers developed and validated a classroom-based assessment literacy questionnaire (CALQ) to determine teachers` levels of CBAL. To do so, an inclusive review of the literature was accomplished to retrieve major themes and components of CBAL, and then a series of interviews were conducted with five assessment experts and 13 experienced EFL teachers in accordance with Pill and Harding’s (2013) Model of LAL, Hill and McNamara’s (2012) scope and dimensions of CBA in addition to teachers’ assessment literacy beliefs. Accordingly, a questionnaire (CALQ) including 41 items was developed. To inquire the reliability and validity of the CALQ, 318 EFL teachers were selected through non-probability convenience sampling and asked to answer the questionnaire. The outcomes of the Cronbach’s alpha demonstrated a proper reliability index, and factor analysis products clarified that items loaded on six factors named as illiteracy (6 items); nominal literacy (11 items); functional literacy (6 items); procedural and conceptual literacy (6 items); multidimensional literacy (6 items); and assessment literacy beliefs (6 items). Besides, CALQ is considered advantageous in assessing teachers’ CBAL and facilitating materials preparation to design instructional courses and develop EFL teachers’ CBAL, based on the conclusions of structural equation modeling (SEM), which proved that the Model enjoyed good psychometric features.

This study delves into the attitudes of Iranian English as a Foreign Language (EFL) learners toward the classroom practices of Communicative Language Teaching (CLT). It endeavors to present a comprehensive understanding of the current state of CLT in Iran, the associated challenges, and potential avenues for enhancing CLT classroom practices. The existing literature review highlights a scarcity of research concerning learners’ perspectives on CLT, with many studies primarily relying on questionnaires or surveys, failing to capture learners’ nuanced attitudes and experiences. In response to this gap, our qualitative research explores the attitudes of 31 Iranian EFL learners using a grounded theory approach. Grounded theory, known for its capacity to unearth insights into social processes and their underlying factors, is particularly suited to this endeavor. The research findings uncover seven key themes that constitute the dimensions of CLT practices in the EFL classroom. These themes include interactive learning, speaking-auditory communication, learners’ participation in class activities, learners’ ability, teacher empowerment, learning needs assessment, and communicative language training. This study offers valuable insights into Iranian EFL learners’ attitudes toward CLT classroom practices. Findings also contribute to the ongoing dialogue on language teaching methodologies, providing educators and policymakers with a deeper understanding of learner perspectives and paving the way for more effective CLT implementation in EFL classrooms in Iran.

Among different factors affecting writing assessment, rater and rating scale are two influential variables that determine the outcome of assessment. In fact, the way raters interact with rating scales considerably affects the validity of their assessment. Taking this into account, this study attempted to identify and classify the raters’ behaviors in the Iranian EFL context when using analytic and holistic rating scales. To this end, a group of nine expert raters were asked to verbalize their thoughts when rating student essays. They were also asked to do their rating using the analytic scale of ESL Composition Profile and IELTS holistic scale. Upon the qualitative analysis of think-aloud protocols (TAPs), two themes emerged which showed the raters’ behaviors when applying the rating scales. The findings further showed that when using the holistic scale, the raters read the text first to get an overall impression. Then they assessed the text based on their own criteria. Next, they referred to the scale for scoring and in the last stage they provided evidence for their scoring. On the other hand, when applying analytic rating scales, the raters first scanned the text for surface features. Then they read the text for their initial impression. Next, they read each scale component and its descriptor for scoring and finally, they attempted to provide evidence for their scoring. In addition to identifying the raters’ behaviors, the raters’ behaviors were classified to shed light on the process of rating. The findings imply that the diagnosis of the rater-rating scale interactions can unveil the strengths and weaknesses of the EFL rating process. This, in turn, can provide more quality training for the raters and in this way enhance the scoring validity of their judgements. In the long run, this would improve the professional development of the raters involved in the writing assessment.

In academic discourse across diverse fields, the cultivation of authorial competence in crafting compelling and persuasive texts is of paramount importance. Scholars in the field of linguistics, particularly those involved in discourse analysis, have been attentive to this necessity. Within the realm of academic writing, the strategic utilization of engagement markers plays a pivotal role in achieving persuasive communication and fostering reader engagement. The cultural positioning of academic writers is often reflected in the incorporation of these linguistic elements within written discourse. This study undertook an examination of 60 research articles spanning the domains of hard and soft sciences, with a focus on discerning potential disparities in the employment of engagement markers between two distinct cohorts of authors: native English speakers and non-native Iranian writers. Employing Hyland's (2005b) model of engagement markers as an analytical framework, the study sought to ascertain the frequency of these linguistic devices within academic research articles produced by the aforementioned groups. The findings of the analysis revealed significant differences in the overall and categorical distribution of engagement markers in the scholarly works of native English and non-native Iranian authors across hard and soft science disciplines. These differences may be ascribed to the cultural positioning of academic writers or the potential lack of familiarity with the established conventions of English rhetoric, pragmatics, and sociolinguistics among non-native Iranian authors. The implications of these findings are significant, as they can inform the development of pedagogical materials aimed at enhancing the academic writing proficiency of authors.

Having active participation in today’s more universally-networked research community through publishing in valid English journals has become delicate for the most populated contemporary users of English as a foreign language known as ‘ESP writers. This challenge is typically experienced in ESP authors’ variation in employing the generic move patterns in the overall structure of the academic research articles (RAs) ‘Conclusions’ sections, probably caused by heterogeneity in ‘English’ across the authors’ discipline-specific fields of expertise. Thus, the purpose of the present study was to analyze the organizational moves/steps of the RAs ‘conclusions’ to examine any significant difference/s in the discipline-specific authors’ writing styles in terms of the ‘type’ and ‘frequency’ of the moves/steps under study. To this end, 160 randomly selected RAs conclusions (RACs) from eight academic disciplines equally representing the hard sciences and soft sciences, were comparatively analyzed based on a conflated ESP move analysis model of Yang and Allison (2003), and Moritz, Meurer and Dellagnelo (2008). The results of the study obtained from the Frequency counts, Chi-square tests and the Effect Size measure revealed statistically significant differences between the frequency of moves/steps of the RACs in both discipline-specific groups of sciences; in addition, it was found that generic move patterns of the RACs did not strictly follow the proposed model. However, Pedagogical and practical implications along with suggestions for further studies are presented.

Teachers’ emotions lie at the heart of their professional identity, yet how these emotions evolve during the practicum remains underexplored, especially among EFL pre-service teachers who are preparing for a tenure-track teaching career. This qualitative case study followed four Iranian undergraduate EFL pre-service teachers over two semesters of their practicum to explore the features, sources, and trajectories of their emotional experiences. Drawing on focus group discussions, semi-structured interviews, and field observations, the study identified several emerging themes: (1) positive emotions such as excitement, joy, and fulfilment when applying pedagogical knowledge and building rapport with students; (2) negative emotions including anxiety, frustration, and insecurity arising from students’ misbehavior, lack of support from mentors, and perceived low social value of teaching; and (3) ambivalent emotions reflecting the tension between idealism and the realities of the classroom. Over time, participants’ optimism gradually gave way to feelings of uncertainty, disappointment, and weakened vocational resilience. The findings highlight that while pre-service teachers with a strong teaching vocation initially display emotional commitment, their resilience can erode without sufficient mentorship and emotional scaffolding. The study underscores the need to foster socio-emotional competence, integrate positive psychology practices, and recalibrate pre-service teachers’ idealism to help them sustain motivation and professional well-being throughout their practicum and future careers.