Sparse relation prediction based on hypergraph neural networks in online social networks
In recent years, online social networks (OSNs) have thoroughly penetrated people’s lives. Since information always flows along with various online relations in OSNs, analysing these relations becomes one of the most fundamental problems in various ...
Group homophily based facility location selection in geo-social networks
Conditional p-center problem is one of the classical facility location problems, which aims to find p facilities meeting the given distance condition with q pre-existing facilities. It is worth noting that, with the proliferation of the social ...
Identifying informative tweets during a pandemic via a topic-aware neural language model
Every epidemic affects the real lives of many people around the world and leads to terrible consequences. Recently, many tweets about the COVID-19 pandemic have been shared publicly on social media platforms. The analysis of these tweets is ...
Intra- and inter-association attention network-enhanced policy learning for social group recommendation
Social Group Recommendation (SGR) is a critical task to recommend items to a group of users in social network platforms, such as Meetup, Douban, Mofengwo, etc. Recently, many state-of-the-art works have addressed the group decision making with pre-...
Personalized tag recommendation via denoising auto-encoder
Personalized tag recommender systems automatically recommend users a set of tags used to annotate items according to users’ past tagging information. Learning the representations of involved entities (i.e. users, items and tags) and capturing the ...
Optimization of maintenance personnel dispatching strategy in smart grid
Efficient and timely dispatch of maintenance personnel for fault detection and failure recovery play a key role towards safe operation of power grid and has become a challenging issue. To address this challenge, this paper proposes a new optimal ...
A novel feature-based framework enabling multi-type DDoS attacks detection
Distributed Denial of Service (DDoS) attacks are among the most severe threats in cyberspace. The existing methods are only designed to decide whether certain types of DDoS attacks are ongoing. As a result, they cannot detect other types of ...
A multi-attribute decision making approach based on information extraction for real estate buyer profiling
With the rapid development of the Internet and the widespread usage of mobile terminals, data-driven user profiling has become possible. User profiles describe the user’s overall behavior characteristic from multiple perspectives (e.g. basic ...
Clustering-enhanced stock price prediction using deep learning
In recent years, artificial intelligence technologies have been successfully applied in time series prediction and analytic tasks. At the same time, a lot of attention has been paid to financial time series prediction, which targets the ...
Memory-augmented meta-learning framework for session-based target behavior recommendation
Session-based recommendation aims to predict the next item to be interacted by a specific type of behavior (e.g., click or purchase) within a session. However, the main challenge comes from the lack of interactions in the target behavior. Despite ...
Auxiliary signal-guided knowledge encoder-decoder for medical report generation
Medical reports have significant clinical value to radiologists and specialists, especially during a pandemic like COVID. However, beyond the common difficulties faced in the natural image captioning, medical report generation specifically ...
Dynamic path learning in decision trees using contextual bandits
We present a novel online decision-making solution, where the optimal path of a given decision tree is dynamically found based on the contextual bandits analysis. At each round, the learner finds a path in the decision tree by making a sequence of ...
TransO: a knowledge-driven representation learning method with ontology information constraints
Representation learning techniques for knowledge graphs (KGs) are crucial for constructing knowledge-driven decisions in complex network data application scenarios. Most existing methods focus mainly on structured information, ignoring the ...
PreKar: A learned performance predictor for knowledge graph stores
Effective knowledge graph storage management is identified as the basic premise to make full use of knowledge graphs. Due to the lack of performance evaluation for knowledge graph stores, it is difficult for users to decide which one is the best. ...
Example query on ontology-labels knowledge graph based on filter-refine strategy
The query processing on knowledge graphs has attracted significant attention in the past years. Different from the traditional query processing on knowledge graphs, the example query method can capture the users’ query intentions by providing ...
Structured anchor-inferred graph learning for universal incomplete multi-view clustering
The goal of multi-view spectral clustering (MVSC) is to explore the intrinsic cluster structures embedded in the multi-view data and group the learned optimal feature embeddings into different clusters based on similarity measurement. Although ...
Gated graph convolutional network with enhanced representation and joint attention for distant supervised heterogeneous relation extraction
Distant supervised relation extraction which is to extract heterogeneous relations from text data without manual annotation has been widely used in decision-making tasks such as question answering or recommendation system. However, existing ...
Bipartite graph capsule network
Graphs have been widely adopted in various fields, where many graph models are developed. Most of previous research focuses on unipartite or homogeneous graph analysis. In this graphs, the relationships between the same type of entities are ...
Attention-based hierarchical denoised deep clustering network
Clustering is a basic task of data analysis and decision making. Recently, graph convolution network (GCN) based deep clustering frameworks have produced the state-of-the-art performance. However, the traditional GCN has not fully learnt the ...
Effective rule mining of sparse data based on transfer learning
Rule mining is an important and challenging task in data mining. Although many state-of-art algorithms have been proposed on dense data, they are not effectively adaptive for sparse data, such as sparse heterogeneous networks. Transfer learning ...
Multi-center federated learning: clients clustering for better personalization
Personalized decision-making can be implemented in a Federated learning (FL) framework that can collaboratively train a decision model by extracting knowledge across intelligent clients, e.g. smartphones or enterprises. FL can mitigate the data ...