增强神经协作过,使用混合特征选择进行推
Baboucarr Drammeh1,2, Hui Li1
1College of Computer Science and Technology, Guizhou University, Guiyang, Guizhou, China.
PeerJ. Computer science
|September 14, 2023
概括
这项研究引入了一个深度学习推系统,它捕捉了本地和全球用户与项目的交互. 这种新的方法通过考虑复杂的相关性来提高在线推服务的准确性.
科学领域:
- 计算机科学 计算机科学
- 人工智能的人工智能
- 机器学习 机器学习
背景情况:
- 在线交易激增,对复杂的推系统的需求增加.
- 当前的深度学习模型往往无法通过专注于全球或本地交互来捕捉全面的用户-项目相关性.
- 对个性化在线服务而言,有效建模用户对象交互至关重要.
研究的目的:
- 提出一个新的深度协作推系统.
- 为了有效地捕捉用户和项目之间的本地和全球更高层次的交互.
- 为了提高性能并防止推器系统的过度安装.
主要方法:
- 开发了一个使用卷积神经网络的深度协作推系统.
- 整合了外部产品矩阵和混合功能选择模块,以捕捉各种交互.
- 集成的通用矩阵因子化权重用于网络优化和规范化.
主要成果:
- 拟议的系统成功地捕获了本地和全球的高阶用户-项目交互.
- 在两个真实世界数据集上的实验表明,与基线方法相比,性能优越.
- 这种方法在不同稀疏度级别的数据集中被证明是有效的.
结论:
- 这种新的深度协作推系统有效地模拟了复杂的用户-项目相关性.
- 卷积神经网络和高级特征选择的整合提高了推准确度.
- 这种方法为个性化的在线服务和推系统研究提供了重大进展.
相关概念视频
Hybridoma Technology
14.9K
Hybridoma technology is used for the large-scale production of monoclonal antibodies. Monoclonal antibodies bind to only a single antigenic determinant or epitope. Such antibodies are used in research, diagnostics, and disease therapy. The hybridoma technology established in 1975 by Georges Köhler and Cesar Milstein was awarded the Nobel Prize in Medicine in 1984 for revolutionizing research and therapy.
Hybridoma Selection
Commonly used fusion techniques — electroporation,...
Hybridoma Selection
Commonly used fusion techniques — electroporation,...
14.9K
Frequency-dependent Selection
22.1K
When the fitness of a trait is influenced by how common it is (i.e., its frequency) relative to different traits within a population, this is referred to as frequency-dependent selection. Frequency-dependent selection may occur between species or within a single species. This type of selection can either be positive—with more common phenotypes having higher fitness—or negative, with rarer phenotypes conferring increased fitness.
22.1K
Neural Circuits
1.3K
Neural circuits and neuronal pools are two of the main structures found in the nervous system. Neural circuits are networks of neurons that work together to carry out a specific task or process. They consist of interconnected neurons and glial cells, which provide structural and metabolic support.
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
1.3K
Classification of Signals
519
In signal processing, signals are classified based on various characteristics: continuous-time versus discrete-time, periodic versus aperiodic, analog versus digital, and causal versus noncausal. Each category highlights distinct properties crucial for understanding and manipulating signals.
A continuous-time signal holds a value at every instant in time, representing information seamlessly. In contrast, a discrete-time signal holds values only at specific moments, often denoted as x(n), where...
A continuous-time signal holds a value at every instant in time, representing information seamlessly. In contrast, a discrete-time signal holds values only at specific moments, often denoted as x(n), where...
519
Active Filters
855
Active filters are electronic circuits that use operational amplifiers (op-amps), resistors, and capacitors to filter out unwanted frequency components from a signal. A first-order low-pass active filter is designed to pass signals with a frequency lower than a certain cutoff frequency and attenuate frequencies higher than that cutoff frequency. The transfer function for a first-order low-pass active filter is:
855
Upsampling
261
Managing signal sampling rates is essential in digital signal processing to maintain signal integrity. A decimated signal, characterized by a reduced frequency range due to its lower sampling rate, can be upsampled by inserting zeros between each sample. This upsampling process expands the original spectrum and introduces repeated spectral replicas at intervals dictated by the new Nyquist frequency. To refine this zero-inserted sequence, it is passed through a lowpass filter with a cutoff...
261


