3 research outputs found
SAIN: Self-Attentive Integration Network for Recommendation
With the growing importance of personalized recommendation, numerous
recommendation models have been proposed recently. Among them, Matrix
Factorization (MF) based models are the most widely used in the recommendation
field due to their high performance. However, MF based models suffer from cold
start problems where user-item interactions are sparse. To deal with this
problem, content based recommendation models which use the auxiliary attributes
of users and items have been proposed. Since these models use auxiliary
attributes, they are effective in cold start settings. However, most of the
proposed models are either unable to capture complex feature interactions or
not properly designed to combine user-item feedback information with content
information. In this paper, we propose Self-Attentive Integration Network
(SAIN) which is a model that effectively combines user-item feedback
information and auxiliary information for recommendation task. In SAIN, a
self-attention mechanism is used in the feature-level interaction layer to
effectively consider interactions between multiple features, while the
information integration layer adaptively combines content and feedback
information. The experimental results on two public datasets show that our
model outperforms the state-of-the-art models by 2.13%Comment: SIGIR 201
Carrier Transport at Metal/Amorphous Hafnium–Indium–Zinc Oxide Interfaces
In
this paper, the carrier transport mechanism at the metal/amorphous
hafnium–indium–zinc oxide (a-HIZO) interface was investigated.
The contact properties were found to be predominantly affected by
the degree of interfacial reaction between the metals and a-HIZO;
that is, a higher tendency to form metal oxide phases leads to excellent
Ohmic contact via tunneling, which is associated with the generated
donor-like oxygen vacancies. In this case, the Schottky–Mott
theory is not applicable. Meanwhile, metals that do not form interfacial
metal oxide, such as Pd, follow the Schottky–Mott theory, which
results in rectifying Schottky behavior. The Schottky characteristics
of the Pd contact to a-HIZO can be explained in terms of the barrier
inhomogeneity model, which yields a mean barrier height of 1.40 eV
and a standard deviation of 0.14 eV. The work function of a-HIZO could
therefore be estimated as 3.7 eV, which is in good agreement with
the ultraviolet photoelectron spectroscopy (3.68 eV). Our findings
will be useful for establishing a strategy to form Ohmic or Schottky
contacts to a-HIZO films, which will be essential for fabricating
reliable high-performance electronic devices