1,278 research outputs found
Blue Crab, Callinectes sapidus, Retention Rates in Different Trap Meshes
Percent escapements of blue crabs, Callinectes sapidus, by size and sex were determined for commercially available
38.1 mm square and hexagonal meshes and for five experimental squares. Commercial trap mesh sizes retained excessive numbers of sublegal blue crabs. Based on the
criteria of maximizing sublegal crab escapement without an unacceptable loss of legal blue crabs, the 44.4 mm square (as measured from the inside of adjacent corners) was optimum and superior to either trap mesh used by fishermen
An Ensemble-based Approach to Click-Through Rate Prediction for Promoted Listings at Etsy
Etsy is a global marketplace where people across the world connect to make,
buy and sell unique goods. Sellers at Etsy can promote their product listings
via advertising campaigns similar to traditional sponsored search ads.
Click-Through Rate (CTR) prediction is an integral part of online search
advertising systems where it is utilized as an input to auctions which
determine the final ranking of promoted listings to a particular user for each
query. In this paper, we provide a holistic view of Etsy's promoted listings'
CTR prediction system and propose an ensemble learning approach which is based
on historical or behavioral signals for older listings as well as content-based
features for new listings. We obtain representations from texts and images by
utilizing state-of-the-art deep learning techniques and employ multimodal
learning to combine these different signals. We compare the system to
non-trivial baselines on a large-scale real world dataset from Etsy,
demonstrating the effectiveness of the model and strong correlations between
offline experiments and online performance. The paper is also the first
technical overview to this kind of product in e-commerce context
Profiles in Exhaustion and Pomposity: the Everyday Life of Komsomol cadres in the 1920s
The article examines the daily lives of Young Communist League (Komsomol) cadres in the 1920s argue that their ability to establish local authority through consent was often undermined by their everyday conditions. The article treats the emergence of the Komsomol’s nomenklatura and cadre appointment system after the Russian civil war, cadre workload, working conditions, health, attitudes, and the Komsomol leadership’s efforts to subordinate cadre malfeasance and corruption through public scandal. The article demonstrates that without a sturdy material base upon which to generate consent, local Komsomol cadres often relied on domination to exert their authority over their rank and file members and to some extent the local population. This reliance ultimately perpetuated itself. The more cadres employed coercion, the more the means of consent atrophied, which led them to turn time and again to domination. The use of domination over consent had grave implications on the nature of Bolshevik rule. Often Komsomol cadres were the only representative of the Soviet state in rural localities, and their methods of garnering authority were representative of prevailing trends of Bolshevik governance throughout the 1920s.</jats:p
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