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Integrating Web Usage and Content Mining for More Effective Personalization
TLDR
We present a general framework for usage-based Web personalization, distinguishing between the offine tasks of data preparation and mining, and the online process of customizing Web pages based on a user's active session. Expand
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Discovery of Aggregate Usage Profiles for Web Personalization
TLDR
We present and experimentally evaluate two techniques, based on clustering of user transactions and pageviews, in order to discover overlapping aggregate profiles that can be effectively used by recommender systems for real-time personalization. Expand
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Fabrication and characterization of hydrophilic corn stalk biochar-supported nanoscale zero-valent iron composites for efficient metal removal.
Pyrolyzing low-cost agro-waste into biochar is a promising means for waste biomass utilization. This study engineers corn stalk-derived biochar with abundant hydrophilic functional groups as aExpand
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Robust dynamic positioning of ships with disturbances under input saturation
TLDR
In the presence of unknown time-varying disturbances and input saturation, this paper develops a robust nonlinear control law for the dynamic positioning (DP) system of ships using a disturbance observer, an auxiliary dynamic system, and the dynamic surface control technique. Expand
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Safety and accuracy of robot-assisted versus fluoroscopy-assisted pedicle screw insertion in thoracolumbar spinal surgery: a prospective randomized controlled trial.
OBJECTIVEThe object of this study was to compare the safety and accuracy of pedicle screw placement using the TiRobot system versus conventional fluoroscopy in thoracolumbar spinalExpand
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Differential Privacy for Collaborative Filtering Recommender Algorithm
TLDR
In this paper, we solve the privacy problem in recommender system in a different way by applying the differential privacy method into the procedure of recommendation. Expand
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Environmental transformations and ecological effects of iron-based nanoparticles.
The increasing application of iron-based nanoparticles (NPs), especially high concentrations of zero-valent iron nanoparticles (nZVI), has raised concerns regarding their environmental behavior andExpand
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Chromium immobilization by extra- and intraradical fungal structures of arbuscular mycorrhizal symbioses.
Arbuscular mycorrhizal (AM) fungi can enhance plant Cr tolerance through immobilizing Cr in mycorrhizal roots. However, the detailed processes and mechanisms are unclear. The present study focused onExpand
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Treatment of metastatic spinal tumors by percutaneous vertebroplasty versus percutaneous vertebroplasty combined with interstitial implantation of 125I seeds
Background: As the most frequent bone metastasis, spinal metastases cause severe pain and damage to vertebral bodies such as spinal osteolytic destruction and compression fractures. To avoid theExpand
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Robot-Assisted Versus Fluoroscopy-Assisted Cortical Bone Trajectory Screw Instrumentation in Lumbar Spinal Surgery: A Matched-Cohort Comparison.
OBJECTIVE The aim of the present study was to compare the accuracy and safety of TiRobot system-assisted with those of fluoroscopy-assisted cortical bone trajectory screw placement in lumbar spinalExpand
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