The use of relevant metrics of software systems could improve various software engineering tasks, but identifying relationships among metrics is not simple and can be very time consuming. Recommender systems can help with this decision-making process; many applications have utilized these systems to improve the performance of their applications. To investigate the potential benefits of recommender systems in regression testing, we implemented an item-based collaborative filtering recommender system that uses user interaction data and application change history information to develop a test case prioritization technique. To evaluate our approach, we performed an empirical study using three web applications with multiple versions and compared four control techniques. Our results indicate that our recommender system can help improve the effectiveness of test prioritization.
Abstract-Spiritual intelligent or spiritual quotient refers to people's capacity to express, manifest, and represent spiritual resources, values, and properties to improve every day performance. Vocabulary learning strategies relates to any group of procedures which language learners apply to find the meaning of a new word, to keep in mind the knowledge of newly-learned word, and to develop one's vocabulary .This paper investigates the relationship between EFL learners' spiritual intelligence (SI) and their use of vocabulary learning strategies. The aim of the study was to determine how these two constructs correlate with each other. To this end, 120 EFL students from Public University of Shiraz and Islamic Azad University of Shiraz took part in vocabulary learning strategy questionnaire (Schmitt's, 2001) and the Spiritual Intelligence Self-Report Inventory (King, 2008) questionnaires. The obtained results indicated a statistically significant relationship between SI and vocabulary learning strategies. The results of multiple regressions showed that there was a significant correlation between all SI subscales and metacognitive strategies and social strategies. The results also showed that males with their higher scores in vocabulary learning strategies usage and are significantly superior to females. Also females are superior to males and they have higher spiritual intelligence scores.
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