User targeting is an essential task in the modern advertising industry: given a package of ads for a particular category of products (e.g., green tea), identify the online users to whom the ad package should be targeted. A (ad package specific) user
targeting model is typically trained using historical clickthrough data: positive instances correspond to users who have clicked on an ad in the package before, whereas negative instances correspond to users who have not clicked on any ads in the package that were displayed to them. Collecting a sufficient amount of positive training data for training an accurate user targeting model, however, is by no means trivial. This paper focuses on the development of a method for automatic augmentation of the set of positive training instances. Experimental results on two datasets, including a real-world company dataset, demonstrate the effectiveness of our proposed method.
We offer an approach to explain Decision Tree (DT) predictions by addressing potential conflicts between aspects of these predictions and plausible expectations licensed by background information. We define four types of conflicts, operationalize the
ir identification, and specify explanatory schemas that address them. Our human evaluation focused on the effect of explanations on users' understanding of a DT's reasoning and their willingness to act on its predictions. The results show that (1) explanations that address potential conflicts are considered at least as good as baseline explanations that just follow a DT path; and (2) the conflict-based explanations are deemed especially valuable when users' expectations disagree with the DT's predictions.
We describe our straight-forward approach for Tasks 5 and 6 of 2021 Social Media Min- ing for Health Applications (SMM4H) shared tasks. Our system is based on fine-tuning Dis- tillBERT on each task, as well as first fine- tuning the model on the othe
r task. In this paper, we additionally explore how much fine- tuning is necessary for accurately classifying tweets as containing self-reported COVID-19 symptoms (Task 5) or whether a tweet related to COVID-19 is self-reporting, non-personal reporting, or a literature/news mention of the virus (Task 6).
In this paper, we discussed the motion of charged particles in the external fields and the
radiation of a system of two action reciprocal charges. Where we find that the motion of
each charged particle, or precisely the motion of the moving charged
particles in orbits has
conical forms, and their foci are located in the center of inertia, and this is compatible with
Kepler's problem in determining the motion of the planets.
As we have shown, the results obtained are that a system consisting of two identical
particles, or of different particles, with the same ratio (e / m) , can not radiate in a dipole
approximation, and that the moving charge in a closed orbit continuously radiates energy.
The differential cross section of particles scattering was calculated according to the
Coulomb law, and the radiation value resulting from the incident of a beam of charged
particles was finally calculated on a static charge (the braking radiation), where the
radiation energy was found to be inversely proportional to the particle velocity as well as
the cube with the radius of the radiation correction, and it is associated with the angle of
scattering and the azimuth angle.
Studying the mechanics of particle systems in special relativity is one of the most
complex issues. However, this study sets us up to lay the groundwork for building a set of
important laws. The motion of particle masses as a whole was determined b
y their energy,
impulse and static mass. It was also found that the total energy of the system of mutual
action requires taking into account the energies of these mutual acts between the particles.
Contrary to the systems of the mutual acts of collisions, approximate formulas for
interplay between charged particles were determined by studying the collision of
relativistic particles-Compton's effect.
Finally, the case of the movement of the charged particles of weak interacts was
discussed, and the movement of the interconnected particles was discussed through mutual
electromagnetic acts using the concept of mutual action between the particles of the
system.
In This Scientific Paper it had been studied the Effect of Ponderomotive Force on
Landau damping of electron Wave in dense quantum Plasmas, by Using quasi quantum
kinetic Equation, Using the Corrections due to both of quantum effects and Ponderomot
ive
Force, because of their necessity in Studying Wave Reflection inside Cavity Energy ,and
some Physical Properties of Plasmas, then comparing the Results to the other Conclusions
in this Field.
In this paper, we will shed light on the applied studies results in
special of deep tectonic situation of the Kurachine dolomite
formation through the seismic sections explained by us, and
establish time and depth maps for this formation, and prop
osing a
well that is supposed to be hydrocarbon potential in the light of
modern data.
In order to build 3D structural model for Mamlaht Al-Kom
structure in the North Palmyride Chain, the potential reflections
were defined like Korushina Anhydrite (K.A) the cover, and
Korushina Dolomite (K.D) the reservoir, therefore the time,
velo
city, and depth maps for Korushina dolomite reflection were
constructed. Finally the 3D Structural Model for formation (K.D)
was defined. So that the hydrocarbon potential is discussed.
Abo Rabah is one of the most important structures in the Al- Daw
basin, because of the great tectonic complexity that has been
exposed during the geological history, and being one of the most
important gas producing areas in Syria. That explains t
he
importance of its study. Our applied studies indicates that there is
significant variation in salt thickness depending on sedimentation
and tectonic factors, which directly affects the kurachine dolomite
gas reservoir, Here lies the importance of this paper.
In this work, the effect of electric permittivity and thin layer thickness on the energy
gape has been studied in a system consisting of three thin layers by means of finding the
self action potential of charge carrier located in the central layer
of this system. Then, the
self action potential energy has been found by solving Schrödinger equation at the
extracted potential. This study shows that energy gape of PbI2 decreases with layer
thickness while it increases/decreases according to comparison between dielectric
permittivity values of central layer and counterparts of two neighborhood layers on both sides.
