Hierarchical clustering of a Finnish newspaper article collection with graded relevance assessments

Search facilitated with agglomerative hierarchical clustering methods was studied in a collection of Finnish newspaper articles (N = 53,893). To allow quick experiments, clustering was applied to a sample (N = 5,000) that was reduced with principal components analysis. The dendrograms were heuristically cut to find an optimal partition, whose clusters were compared with each of the 30 queries to retrieve the best-matching cluster. The four-level relevance assessment was collapsed into a binary one by (A) considering all the relevant and (B) only the highly relevant documents relevant, respectively. Single linkage (SL) was the worst method. It created many tiny clusters, and, consequently, searches enabled with it had high precision and low recall. The complete linkage (CL), average linkage (AL), and Ward's methods (WM) returned reasonably-sized clusters typically of 18–32 documents. Their recall (A: 27–52%, B: 50–82%) and precision (A: 83–90%, B: 18–21%) was higher than and comparable to those of the SL clusters, respectively. The AL and WM clustering had 1–8% better effectiveness than nearest neighbor searching (NN), and SL and CL were 1–9% less efficient that NN. However, the differences were statistically insignificant. When evaluated with the liberal assessment A, the results suggest that the AL and WM clustering offer better retrieval ability than NN. Assessment B renders the AL and WM clustering better than NN, when recall is considered more important than precision. The results imply that collections in the highly inflectional and agglutinative languages, such as Finnish, may be clustered as the collections in English, provided that documents are appropriately preprocessed.     

Teacher-perceived supportive classroom climate protects against detrimental impact of reading disability risk on peer rejection

This study examined the role of a supportive classroom climate, class size, and length of teaching experience as protective factors against children's peer rejection. A total of 376 children were assessed in kindergarten for risk for reading disabilities (RD) and rated by their teachers on socially withdrawn and disruptive behaviors. The grade 1 measures included sociometric peer assessment and teachers' self-ratings of their supportiveness in the classroom, together with information on class size and teaching experience. The results showed, first, that the studied social and learning risk factors positively predicted peer rejection in grade 1. Moreover, teacher-reported supportive classroom climate in grade 1 protected children against the detrimental impact of RD risk on peer rejection. Smaller class size, in turn, served as a protective factor against the detrimental impact of social withdrawal on peer rejection. Finally, shorter teaching experience protected against both social and learning risk factors.     

A child’s psychological adjustment impacts teachers’ instructional support and affective response

This cross-lagged longitudinal study examines the evocative impact of a child’s psychological adjustment on teachers’ affective response and instructional support for a child, and the influence this support and response has on the child’s subsequent adjustment. A hundred and seventeen Finnish teachers self-rated the instructional support they gave, and the affect they experienced while teaching 307 children from school grades 1, 2 and 3. Teachers also rated the level of prosocial and externalizing problem behaviour among children. Results showed that the more children exhibited externalizing problem behaviour in grades 1 and 2, teachers not only did provide more instructional support for them a year later but, at the same time, they reported feeling less positive affect. Low levels of positive affect were also reported by teachers a year later with regard to children who had received more instructional support from them in grades 1 and 2.     

Focused web crawling in the acquisition of comparable corpora

Cross-Language Information Retrieval (CLIR) resources, such as dictionaries and parallel corpora, are scarce for special domains. Obtaining comparable corpora automatically for such domains could be an answer to this problem. The Web, with its vast volumes of data, offers a natural source for this. We experimented with focused crawling as a means to acquire comparable corpora in the genomics domain. The acquired corpora were used to statistically translate domain-specific words. The same words were also translated using a high-quality, but non-genomics-related parallel corpus, which fared considerably worse. We also evaluated our system with standard information retrieval (IR) experiments, combining statistical translation using the Web corpora with dictionary-based translation. The results showed improvement over pure dictionary-based translation. Therefore, mining the Web for comparable corpora seems promising.     

Kindergarten teachers adjust their teaching practices in accordance with children’s academic pre‐skills

This study examined the extent to which kindergarten children’s academic pre‐skills are associated with their teachers’ subsequent teaching practices. The pre‐skills in reading and math of 1268 children (655 boys, 613 girls) were measured in kindergarten in the fall. A pair of trained observers used the Classroom Assessment Scoring System instrument to observe 49 kindergarten teachers on their emotional support, classroom organisation and instructional support in kindergarten in the spring. The results of the multilevel modelling showed that low levels of academic pre‐skills in kindergarten classrooms in the fall predicted high classroom quality in the classrooms later on. The results suggest that the overall level of children’s academic pre‐skills in the classroom plays an important role in the ways in which teachers adapt their instructional practices to the needs of a particular classroom.     

Associations Among Teacher–Child Interactions,Teacher Curriculum Emphases,and Reading Skills in Grade 1

Research Findings: The purpose of the present study was to examine the extent to which the quality of teacher–child interactions and teachers’ self-reported curriculum emphases are related to children’s reading skill development during their 1st school year. To accomplish this, we assessed the reading skills of 1,029 Finnish children (M age = 85.77 months) twice during Grade 1, and the children’s teachers (n = 91) completed questionnaires concerning their literacy-related curriculum emphases. In addition, teacher–child interactions in terms of emotional support, classroom organization, and instructional support were observed in 29 classrooms. The results of multilevel modeling showed that a high global quality of teacher–child interactions was positively associated with improved children’s reading skills at the end of Grade 1. In addition, a teacher emphasis on comprehension and production skills was related to better reading skills via teacher–child interactions. Domain-specific analyses revealed that emotional support and classroom organization in particular were related to better reading skills. Practice or Policy: The present study adds to previous research by showing that children had better reading skills at the end of their 1st school year in classrooms in which the teachers were warm, responsive, and sensitive to children’s needs and provided well-planned activities, clear rules, and expectations for behavior.     

Family Activity Patterns as related to the symmetry in the division of labour in the family,children’s socialization to work and the significance of work to the parents

The paper is based on empirical material collected in connection with the research project ‘Way of life in the family parental awareness of parenthood, and children’s social development’. The sample consisted of 212 families with both parents and a six-year-old child. It was relatively homogeneous with regard to the educational background of the parents. Comparisons were made between groups of families which differed with regard to (1) symmetry in the division of labour, (2) socialization of children to work, and (3) the relative significance of work vs. family life to the parents. Symmetry in the division of labour was strongly reflected in the family time consumption patterns and their common interests. The parents active role as instigators of common activity was also related to both time consumption and interests. The particular characteristics of work-centred families were described. The wife’s employment status and the nature of her work was associated with the family was of life, while the husband’s work was less important in this respect. Interpretations were made in terms of the trend of changes in the division of labour in the family and children’s socialization to work.     

Observed Classroom Quality Profiles of Kindergarten Classrooms in Finland

Research Findings: The aim of the present study was to examine classroom quality profiles of kindergarten classrooms using a person-centered approach and to analyze these patterns in regard to teacher and classroom characteristics. Observations of the domains of Emotional Support, Classroom Organization, and Instructional Support were conducted in 49 Finnish kindergarten classrooms utilizing the Classroom Assessment Scoring System (R. C. Pianta, K. M. LaParo, &; B. K. Hamre, 2008 Pianta , R. C. , &; Hadden , D. S. ( 2008 , June ). What we know about the quality of early education settings: Implications for research on teacher preparation and professional development . The State Education Standard , pp. 20–27 . [Google Scholar]). In addition, questionnaire data on classroom and teacher characteristics, as well as Early Childhood Classroom Observation Measure (D. Stipek &; P. Byler, 2004 LaParo , K. M. , Pianta , R. C. , &; Stuhlman , M. ( 2004 ). The Classroom Assessment Scoring System: Findings from the prekindergarten year . The Elementary School Journal , 104 , 409 – 426 .[Crossref], [Web of Science ®] , [Google Scholar]) observational ratings, were used in the analyses. Latent profiling analysis was utilized to identify different profiles of classroom quality. Four latent profiles of classroom quality were identified that differed from one another most clearly in the domain of Emotional Support. Profile 1 represented a generally high level and Profile 4 a generally low level of classroom quality compared to the other profiles, whereas the medium-quality Profiles 2 and 3 showed varying levels of support in the assessed dimensions of quality. Only a few differences emerged among the profiles in classroom and teacher characteristics: The teachers in Profile 4 provided the least literacy instruction and had the least amount of work experience of all of the teachers. The findings using the Early Childhood Classroom Observation Measure indicated that child-centered practices were predominant among the profiles of higher classroom quality. Practice or Policy: The results of this study can be used to recognize kindergarten teachers' professional strengths and weaknesses and to support teachers' professional development with the aid of pedagogical interventions.     

A Design for a Hypermedia-based Learning Environment

This paper presents ideas and a design for a Hypermedia-Based Learning Environment, HBLE for short. As the system is in implementation phase, we are also able to present some implementation techniques, problems and solutions. HBLE offers tools and methods for course development, teaching, maintenance, and different learner-centered study strategies. The system also has information acquisition functionality for research purposes.We study structuring the learning material and how to adapt it for individual students. As collaboration is an important aspect of learning process, the system also includes tools and research instruments for collaborative activities between the actors in the learning process. The concrete outcomes of the project are a platform for Web-based courses and experimental courseware. © IFIP, published by Kluwer Academic Publishers     

Quality of teacher–child interactions and its relations to children’s classroom engagement and disaffection in Vietnamese kindergartens

ABSTRACT

This study investigated the quality of teacher–child interaction and its effects on children’s classroom engagement and disaffection in Vietnamese kindergartens. The quality of teacher–child interaction was measured using the Classroom Assessment Scoring System. Children’s classroom engagement and disaffection were assessed by Engagement versus Disaffection in Learning. There were 1474 kindergarten children and 60 teachers from 12 kindergartens in three cities in Vietnam participating in the study. The results indicated that classrooms in Vietnam kindergartens had a moderate quality of teacher–child interaction. Compared to the results from other countries published previously, teacher sensitivity and regard for student perspectives of Vietnamese samples were lower than those of Finland, Germany, the United States, and China. Productivity and the instructional learning format in Vietnamese kindergarten classrooms were higher than those of all the other countries except Finland. The results of fixed-effects and random-effects modelling suggested that children in better organised classrooms were more engaged in learning. Emotional support had a negative effect on children’s classroom engagement. Children’s classroom disaffection was not significantly affected by the quality of the teacher–child interaction.