Amir Konigsberg

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One of the basic foundations for many recommender systems is the assumption of preference consistency and transitivity of choice. In this paper we challenge this assumption and argue that it should be revised. We also provide a method by which recommender systems can estimate preference reversals and choice intransitivity. Our general approach is to(More)
Search for single top quark production in p(p)over-bar collisions at root s=1.96 TeV in the missing transverse energy plus jets topology Search for single top quark production in p p collisions at ffiffi ffi s p ¼ 1:96 TeV in the missing transverse energy plus jets topology We report a search for single top quark production with the CDF II detector using(More)
We study the underlying event in proton-antiproton collisions by examining the behavior of charged particles produced in association with a large transverse momentum jet ($ 2:2 fb À1) or with a Drell-Yan lepton pair ($ 2:7 fb À1) in the Z-boson mass region [70 < MðpairÞ < 110 GeV=c 2 ] as measured by CDF at 1.96 TeV center-of-mass energy. We use the(More)
Search for the supersymmetric partner of the top quark in p(p)over-bar collisions at root s = 1.96 TeV Search for the supersymmetric partner of the top quark in p p collisions at ffiffi ffi s p ¼ 1:96 TeV We present a search for the lightest supersymmetric partner of the top quark in proton-antiproton collisions at a center-of-mass energy ffiffi ffi s p ¼(More)
Measurement of the top quark mass and p p ! t t cross section in the all-hadronic mode with the CDF II detector We present a measurement of the top quark mass and of the top-antitop (t " t) pair production cross section using p " p data collected with the CDF II detector at the Tevatron Collider at the Fermi National Accelerator Laboratory and corresponding(More)
We report the observation of electroweak single top quark production in 3:2 fb À1 of p " p collision data collected by the Collider Detector at Fermilab at ffiffi ffi s p ¼ 1:96 TeV. Candidate events in the W þ jets topology with a leptonically decaying W boson are classified as signal-like by four parallel analyses based on likelihood functions, matrix(More)
The collection of a large number of B-hadron decays to hadronic final states at the CDF II Detector is possible due to the presence of a trigger that selects events based on track impact parameters. However, the nature of the selection requirements of the trigger introduces a large bias in the observed proper-decay-time distribution. A lifetime measurement(More)
Measurement of the t(t)over-bar production cross section in p(p)over-bar collisions at root s=1.96 TeV using soft electron b-tagging Measurement of the top quark mass and p p ! t t cross section in the all-hadronic mode with the CDF II detector We present a measurement of the top quark mass and of the top-antitop (t " t) pair production cross section using(More)