Results 41 to 50 of about 214,708 (186)

Examining the influence of cell size and bandwidth size on kernel density estimation crime hotspot maps for predicting spatial patterns of crime [PDF]

, 2013
Hotspot mapping is a popular technique used for helping target police patrols and other crime reduction initiatives. There are a number of spatial analysis techniques that can be used for identifying hotspots, but the most popular in recent years is ...
Chainey, SP
core  

Integrating spatial and temporal approaches for explaining bicycle crashes in high-risk areas in Antwerp (Belgium) [PDF]

, 2019
The majority of bicycle crash studies aim at determining risk factors and estimating crash risks by employing statistics. Accordingly, the goal of this paper is to evaluate bicycle-motor vehicle crashes by using spatial and temporal approaches to ...
Chang, SK Jason, De Backer, Hans, De Maeyer, Philippe, Lauwers, Dirk, Wang, Hwa-Chyi   +4 more
core   +2 more sources

Structure in the 3D Galaxy Distribution: I. Methods and Example Results

, 2010
Three methods for detecting and characterizing structure in point data, such as that generated by redshift surveys, are described: classification using self-organizing maps, segmentation using Bayesian blocks, and density estimation using adaptive ...
Abazajian, Abazajian, Adelman-McCarthy, Andersen, Barrow, Blanton, Blanton, Blanton, Bok, Cappellari, Choi, Connolly, Cowan, Croft, Daley, Daley, de Berg, de Vaucouleurs, de Vaucouleurs, DeSieno, Doroshkevich, Efstathiou, Einasto, Gazis, Gomez, Gott, Gray, Gray, Hogg, Holmberg, Hubble, Hubble, Icke, Ikeuchi, Ivezić, Ivezić, Jackson, Jeffrey D. Scargle, Kim, Kohonen, Krzewina, Kutoyants, M. J. Way, Martinez, Melnyk, Merényi, Messier, Moore, Neyman, Neyman, Okabe, P. R. Gazis, Papoulis, Paredes, Pearson, Peebles, Preparata, Ramella, Reiz, Ritter, Saslaw, Scargle, Scargle, Schaap, Schaap, Schlegel, Shandarin, Shane, Silverman, Slezak, Snyder, Soares-Santos, Sousbie, Sousbie, Stein, Stoyan, Strauss, Szapudi, Totsuji, Ueda, van de Weygaert, van de Weygaert, van de Weygaert, Wright, York, Zehavi, Zehavi, Zel'dovich, Zhang, Zwicky   +89 more
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Do Senohrab jezdí kde kdo

Lidé města, 2020
Beginning in 1850, colonies of recreational villas for the upper and upper-middle classes of Prague entrepreneurs and the intellectual elite began springing up in countryside outside of Prague in a radius of 30 kilometres. They were usually established in an agricultural landscape, in river and creek valleys, surrounded by forested hills. The condition
Romana Chaloupková, Václav Matoušek
openaire   +1 more source

Home Range and Activity Patterns of Free-Ranging Cats: A Case Study from a Chinese University Campus

Animals, 2022
Human activities and the available resources influence the home range and activity patterns of free-ranging cats. Our objective in this study was to determine sex and breeding season vs.
Zhenwei Zhang, Yuhang Li, Sana Ullah, Lixin Chen, Sihan Ning, Liangyu Lu, Weiming Lin, Zhongqiu Li   +7 more
doaj   +1 more source

Rediscovery Datasets: Connecting Duplicate Reports

, 2017
The same defect can be rediscovered by multiple clients, causing unplanned outages and leading to reduced customer satisfaction. In the case of popular open source software, high volume of defects is reported on a regular basis.
Bener, Ayse Basar, Miranskyy, Andriy V., Sadat, Mefta   +2 more
core   +1 more source

Modeling Temporal Evidence from External Collections

, 2018
Newsworthy events are broadcast through multiple mediums and prompt the crowds to produce comments on social media. In this paper, we propose to leverage on this behavioral dynamics to estimate the most relevant time periods for an event (i.e., query ...
Craveiro Olga, Guo Weiwei, Lin Jimmy, Lin Jimmy, Metzler Donald, O'Connor Brendan, Shokouhi Milad, Xu Tan   +7 more
core   +1 more source

Kernel density estimation of allele frequency including undetected alleles [PDF]

PeerJ
Whereas undetected species contribute to estimation of species diversity, undetected alleles have not been used to estimated genetic diversity. Although random sampling guarantees unbiased estimation of allele frequency and genetic diversity measures ...
Satoshi Aoki, Keita Fukasawa
doaj   +2 more sources

Clustering Analyses of 300,000 Photometrically Classified Quasars--I. Luminosity and Redshift Evolution in Quasar Bias

, 2006
Using ~300,000 photometrically classified quasars, by far the largest quasar sample ever used for such analyses, we study the redshift and luminosity evolution of quasar clustering on scales of ~50 kpc/h to ~20 Mpc/h from redshifts of z~0.75 to z~2.28 ...
Adam D. Myers, Baugh C. M., Donald P. Schneider, Efstathiou G., Gordon T. Richards, Jain B., Kormendy J., Lacey C., Maddox S. J., Maddox S. J., Negroponte J., Neta A. Bahcall, Peacock J. A., Peacock J. A., Peacock J. A., Richstone D., Robert C. Nichol, Robert J. Brunner, Silk J., Totsuji H., White S. D. M., Wisotzki L., Wyithe J. S. B.   +22 more
core   +1 more source

Hot Routes: Developing a New Technique for the Spatial Analysis of Crime [PDF]

, 2009
The use of hotspot mapping techniques such as KDE to represent the geographical spread of linear events can be problematic. Network-constrained data (for example transport-related crime) require a different approach to visualize concentration. We propose
Partridge, H, Shepherd, N, Tompson, L
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