The analysis on shooting patterns of basketball players using GIS

Our world consists of space and time. Space is defined in three dimensions and time is defined in one dimension. Every object on earth has space and time attributes ubiquitously. However, these attributes are not sufficiently demonstrated to its effectiveness especially, in terms of time perspective. Therefore, the time perspective is relevant and fundamental for analyzing events as a key factor that leads to new outcomes. GIS (Geographic Information System) manipulating spatial and temporal data on phenomena has been used for several decades and its enhancement leads to new possible analysis methods. In addition, due to GPS (Global Positioning System) device’s development, spatial information has become easily accessible and the various spatial applications’ use became common in our lives. Basketball has recently been introduced to GIS. Basketball is considered one of the highest scoring sports that around 100 points per team in a game. Therefore, investigating the shooting hot spot has the opportunity to display substantial basketball analysis. In this research, basketball shooting data is explored and analyzed by consecutive temporal changes. In basketball, the exact shooting hot spot area in which the most shooting has been taken is crucial as the highest scoring sport. NBA (National Basketball Association: professional men’s basketball league in the U.S) shooting data is used as a raw input data. Significant shooting differences are found. By the “Shot tendency” method, the specific year’s trend and its hot spots were examined. Although, the differences between the years are apparent, difficulty in assumption lies in how the hot spots have changed over time. By the “Emerging hot spot” analysis, the space over the time is understood by investigating the trend in temporal changes. Especially, this would be hard work when the data is so massive. The space-time cube provides spatial and temporal integration and the new possible analysis methods. As a result, near the 3 point arc line (Zone 2 & 3 & 4), mostly continuous hot spot trends were detected. The zones have expanded compared to the past and has seen the recent significant growth. However, the 2 point areas, especially each side of the 2 point areas (Zone 6 & 7 & 9 & 10), mostly the diminishing hot spot trends were detected. The zones have been statically decreased in recent times with the exception of Zone 11

Construction of Inchon International Airport

To face with the increasing the air transportation in Korea, the construction of Inchon International Airport is underway in the bay of Inchon on the reclaimed land. The construction project has begun since the end of 1992, and will be completed by the end of year 2000. This paper presents the general plan of project, site development, soil improvement work, transportation system, and construction budget and fund

Coping with Self-harm in Elderly People: The Impact of Internet Use on Suicidal Ideation

Given the significant costs of suicidal behavior for society, suicide prevention is one of the most urgent issues for most countries. By considering suicidal ideation as a strong indicator of suicide, this paper examines how Internet use influences suicidal ideation and its underlying mechanisms in the context of older adults. Synthesizing the interpersonal theory of suicide with prior literature on Internet use, this study explains that Internet use can reduce suicidal ideation through enhanced social belongingness. Our results using data from 6,056 older adults show that Internet use is negatively associated with suicidal ideation in older adults. The present study further highlights the mediating role of social connectedness (i.e., perceived loneliness and social relationship satisfaction) as an underlying mechanism between Internet use and suicidal ideation. Contributions and practical implications for addressing elderly suicidal problems and future works are discussed

Research trends of microplastics in the soil environment: Comprehensive screening of effects

We collated and synthesized previous studies that reported the impacts of microplastics on soil parameters. The data were classified and integrated to screen for the proportion of significant effects, then we suggest several directions to alleviate the current data limitation in future experiments. We compiled 106 datasets capturing significant effects, which were analyzed in detail. We found that polyethylene and pellets (or powders) were the most frequently used microplastic composition and shape for soil experiments. The significant effects mainly occurred in broad size ranges (0.1–1 mm) at test concentrations of 0.1%–10% based on soil dry weight. Polyvinyl chloride and film induced significant effects at lower concentrations compared to other compositions and shapes, respectively. We adopted a species sensitivity distribution (SSD) and soil property effect distribution (SPED) method using available data from soil biota, and for soil properties and enzymes deemed relevant for microplastic management. The predicted-no-effect-concentration (PNEC)-like values needed to protect 95% of soil biota and soil properties was estimated to be between 520 and 655 mg kg−1. This study was the first to screen microplastic levels with a view toward protecting the soil system. Our results should be regularly updated (e.g., quarterly) with additional data as they become available

Unblinding the OS to Optimize User-Perceived Flash SSD Latency

In this paper, we present a flash solid-state drive (SSD) optimization that provides hints of SSD internal behaviors, such as device I/O time and buffer activities, to the OS in order to mitigate the impact of I/O completion scheduling delays. The hints enable the OS to make reliable latency predictions of each I/O request so that the OS can make accurate scheduling decisions when to yield or block (busy wait) the CPU, ultimately improving user-perceived I/O performance. This was achieved by implementing latency predictors supported with an SSD I/O behavior tracker within the SSD that tracks I/O behavior at the level of internal resources, such as DRAM buffers or NAND chips. Evaluations with an SSD prototype based on a Xilinx Zynq-7000 FPGA and MLC flash chips showed that our optimizations enabled the OS to mask the scheduling delays without severely impacting system parallelism compared to prior I/O completion methods.We would like to thank the anonymous USENIX HotStorage reviewers. This research was supported by NextGeneration Information Computing Development Program through the National Research Foundation of Korea(NRF) funded by the Ministry of Science, ICT & Future Plannig (2015M 3C 4A7065646).OAIID:RECH_ACHV_DSTSH_NO:A201608543RECH_ACHV_FG:RR00200003ADJUST_YN:EMP_ID:A002712CITE_RATE:DEPT_NM:컴퓨터공학부EMAIL:[email protected]_YN:CONFIRM:

A Case Study of Characteristics of Damages Caused by Typhoon EWINIAR 2006 in South Korea

During recent years, the climate of Korea has clearly been divided between dry season and rainy season due to the global warming and other reasons, and a record breaking rain is falling every year. The mountain slopes in Korea receives significant damage generally during the seasons of high rain front and typhoon. In 2006, the rainy season started in July and Typhoon EWINIAR which hit South Korea between July 26 and 28 caused significant damage to various slopes and roads. This paper presents a case study of the damages and characteristics of the damages to cut slopes, fill slopes, and roads caused by the concentrated heavy rains for 3 days in the regions of Inje and YangYang