{"product_id":"identification-of-a-smartphone-user-naval-postgraduate-school-9781505225730","title":"Identification of a Smartphone User Via Keystroke Analysis","description":"Keystroke analysis has been an accepted method for user identification and authentication since the early 1980s. Most of the research in this field of biometrics has focused on traditional computer keyboards, with very few experiments performed on touchscreen keyboards found on modern smartphones. This book focused on identifying a smartphone user based on typing samples input by copying pre-written text, as well as spontaneously-authored free text. Features used for identification were duration of key press, as well as bigram and trigram transitions. User classification based on duration features proved to be successful in 70 percent of inputs to our k-nearest neighbors classifier.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e Naval Postgraduate School\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 1505225736\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9781505225730\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Createspace Independent Publishing Platform\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 11\/27\/2014\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 36\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.24lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 11.02h x 8.50w x 0.07d","brand":"Naval Postgraduate School","offers":[{"title":"Paperback","offer_id":48518732480767,"sku":"9781505225730","price":12.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/2982\/9887\/files\/img_febf82a8-e25e-4477-b86d-95cc9be4842b.jpg?v=1778735423","url":"https:\/\/www.whiterainbookhouse.com\/products\/identification-of-a-smartphone-user-naval-postgraduate-school-9781505225730","provider":"WR Book House","version":"1.0","type":"link"}