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03191aam a2200361 i 4500 001 528D73D08E9811EAB83BD64B97128E48 003 SILO 005 20200505011818 008 190822s2020 nju b 001 0 eng 010 $a 2019022971 020 $a 069118237X 020 $a 9780691182377 035 $a (OCoLC)1099691199 040 $a DLC $b eng $e rda $c DLC $d OCLCO $d OCLCF $d UKMGB $d IAD $d YDX $d NZAUC $d SILO 042 $a pcc 050 00 $a QA276 $b .H3178 2020 082 00 $a 519.5 $2 23 100 1 $a Hand, D. J. $q (David J.), $d 1950- $e author. 245 10 $a Dark data : $b why what you don't know matters / $c David J. Hand. 264 1 $a Princeton, New Jersey : $b Princeton University Press, $c [2020] 300 $a xii, 330 pages : $b illustrations ; $c 23 cm 504 $a Includes bibliographical references and index. 520 $a "Data describe and represent the world. However, no matter how big they may be, data sets don't - indeed cannot - capture everything. Data are measurements - and, as such, they represent only what has been measured. They don't necessarily capture all the information that is relevant to the questions we may want to ask. If we do not take into account what may be missing/unknown in the data we have, we may find ourselves unwittingly asking questions that our data cannot actually address, come to mistaken conclusions, and make disastrous decisions. In this book, David Hand looks at the ubiquitous phenomenon of "missing data." He calls this "dark data" (making a comparison to "dark matter" - i.e., matter in the universe that we know is there, but which is invisible to direct measurement). He reveals how we can detect when data is missing, the types of settings in which missing data are likely to be found, and what to do about it. It can arise for many reasons, which themselves may not be obvious - for example, asymmetric information in wars; time delays in financial trading; dropouts in clinical trials; deliberate selection to enhance apparent performance in hospitals, policing, and schools; etc. What becomes clear is that measuring and collecting more and more data (big data) will not necessarily lead us to better understanding or to better decisions. We need to be vigilant to what is missing or unknown in our data, so that we can try to control for it. How do we do that? We can be alert to the causes of dark data, design better data-collection strategies that sidestep some of these causes - and, we can ask better questions of our data, which will lead us to deeper insights and better decisions"-- $c Provided by publisher. 505 0 $a Dark data : their origins and consequences -- Illuminating and using dark data. 650 0 $a Missing observations (Statistics) 650 0 $a Big data. 650 7 $a Big data. $2 fast $0 (OCoLC)fst01892965 650 7 $a Missing observations (Statistics) $2 fast $0 (OCoLC)fst01023700 776 08 $i Online version: $a Hand, D. J. (David J.), 1950- $t Dark data. $d Princeton : Princeton University Press, 2020. $z 9780691198859 $w (DLC) 2019022972 941 $a 1 952 $l USUX851 $d 20200505015128.0 956 $a http://locator.silo.lib.ia.us/search.cgi?index_0=id&term_0=528D73D08E9811EAB83BD64B97128E48 994 $a 92 $b IWAInitiate Another SILO Locator Search