Explain3D: Explaining Disagreements in Disjoint Datasets

Data plays an important role in applications, analytic processes, and many aspects of human activity. As data grows in size and complexity, we are met with an imperative need for tools that promote understanding and explanations over data-related operations. Data management research on explanations has focused on the assumption that data resides in a single dataset, under one common schema. But the reality of today's data is that it is frequently un-integrated, coming from different sources with different schemas. When different datasets provide different answers to semantically similar questions, understanding the reasons for the discrepancies is challenging and cannot be handled by the existing single-dataset solutions. In this paper, we propose Explain3D, a framework for explaining the disagreements across disjoint datasets (3D). Explain3D focuses on identifying the reasons for the differences in the results of two semantically similar queries operating on two datasets with potentially different schemas. Our framework leverages the queries to perform a semantic mapping across the relevant parts of their provenance; discrepancies in this mapping point to causes of the queries' differences. Exploiting the queries gives Explain3D an edge over traditional schema matching and record linkage techniques, which are query-agnostic. Our work makes the following contributions: (1) We formalize the problem of deriving optimal explanations for the differences of the results of semantically similar queries over disjoint datasets. (2) We design a 3-stage framework for solving the optimal explanation problem. (3) We develop a smart-partitioning optimizer that improves the efficiency of the framework by orders of magnitude. (4)~We experiment with real-world and synthetic data to demonstrate that Explain3D can derive precise explanations efficiently

Changing face: the evolution of Chinese women\u27s dress and appearance

Women’s dress and appearance can reflect a lot about a civilized society. It is influenced by many factors as well. The dress and appearance of contemporary Chinese women have not been studied much by mass communication researchers. This paper, however, explored the factors that influence the development and evolution of contemporary Chinese women’s dress and appearance. It traced back from Dynastic China to Republican China and then to Mao’s red China to examine the historical and political influences imposed on the dress and appearance of Chinese women. Then, it used in-depth interviews to find out factors that influence women’s dress and appearance in contemporary China. Especially, this paper analyzed the result of all these factors that typically were transmitted or reinforced by mass media. The paper found that media played a very important role in contemporary Chinese women’s dress and appearance. Chinese women depend on media very much in choosing their dress style and clothes. In addition to this, peers’ opinion and social environment also influence Chinese women’s choice in dress. Since the results showed that media dependency could also be applied to China’s contemporary society, the paper concluded that media in China will have much more role on the society especially on women’s dress and appearance in the future. It also concluded that Chinese women would not be totally westernized but would maintain some Chinese characteristics in dress and appearance in the future

Reduced source memory for emotional pictures

Although many studies have examined the effect of emotion on item memory for pictures, the evidence is scanty on the effect of emotion on source memory for them. In this study, participants learned a list of neutral, positive, and negative pictures, and then took tests for item and source memory. We found that emotion did not affect accuracy of item memory; however, positive emotion enhanced subjective feeling of remembering. Both positive and negative emotions reduced source memory, which is consistent with some previous studies. The findings suggest that emotion have differential effects on item and source memory, and have some implications for evaluating eyewitness testimony

Blue rubber bleb nevus syndrome coexisted with intestinal intussusception: a case report

Blue Rubber Bleb Nevus Syndrome (BRBNS) is an uncommon congenital disorder characterized by sporadic venous malformation which mainly occurs in skin and alimentary canal. Here, we report a BRBNS patient with concomitant intestinal intussusception who diagnosed by intraoperative endoscopy and ultimately managed using surgical resection. A 19-year-old boy was referred to urgent surgery for acute melena and stomachache. He had used to be a long-term iron user for undiagnosed chronic anemia and papules. Abdominal CT on  admission demonstrated the presence of intestinal intussusception. The following exploratory laparotomy and intraoperative endoscopy revealed multiple gastrointestinal hemangiomas. The postoperative course was uneventful and pathological examination certified multiple cavernous hemangiomas in the resected  gastrointestines.Key words: Blue rubber bleb nevus syndrome, gastrointestinal bleeding, jejunojejunal intussusception, intraoperative endoscopy, papul

Three new species of the Fannia serena species subgroup from China (Diptera: Fanniidae)

The Fannia serena species group (Diptera: Fanniidae) ismainly distributed in the Holarctic region and comprises four subgroups with a total of 32 species. Three new species of the Fannia serena-subgroup, Fannia aureomarginata Wang et Cheng, sp. n., F. suberemna Wang, sp. n. and F. wui Wang, sp. n., are described from China. An identification key to all known species of the Fannia serena-subgroup is also provided