69 research outputs found
Motion Mapping Cognition: A Nondecomposable Primary Process in Human Vision
Human intelligence seems so mysterious that we have not successfully
understood its foundation until now. Here, I want to present a basic cognitive
process, motion mapping cognition (MMC), which should be a nondecomposable
primary function in human vision. Wherein, I point out that, MMC process can be
used to explain most of human visual functions in fundamental, but can not be
effectively modelled by traditional visual processing ways including image
segmentation, object recognition, object tracking etc. Furthermore, I state
that MMC may be looked as an extension of Chen's theory of topological
perception on human vision, and seems to be unsolvable using existing
intelligent algorithm skills. Finally, along with the requirements of MMC
problem, an interesting computational model, quantized topological matching
principle can be derived by developing the idea of optimal transport theory.
Above results may give us huge inspiration to develop more robust and
interpretable machine vision models.Comment: 7 pages, 3 figure
Constructing Word-Context-Coupled Space Aligned with Associative Knowledge Relations for Interpretable Language Modeling
As the foundation of current natural language processing methods, pre-trained
language model has achieved excellent performance. However, the black-box
structure of the deep neural network in pre-trained language models seriously
limits the interpretability of the language modeling process. After revisiting
the coupled requirement of deep neural representation and semantics logic of
language modeling, a Word-Context-Coupled Space (W2CSpace) is proposed by
introducing the alignment processing between uninterpretable neural
representation and interpretable statistical logic. Moreover, a clustering
process is also designed to connect the word- and context-level semantics.
Specifically, an associative knowledge network (AKN), considered interpretable
statistical logic, is introduced in the alignment process for word-level
semantics. Furthermore, the context-relative distance is employed as the
semantic feature for the downstream classifier, which is greatly different from
the current uninterpretable semantic representations of pre-trained models. Our
experiments for performance evaluation and interpretable analysis are executed
on several types of datasets, including SIGHAN, Weibo, and ChnSenti. Wherein a
novel evaluation strategy for the interpretability of machine learning models
is first proposed. According to the experimental results, our language model
can achieve better performance and highly credible interpretable ability
compared to related state-of-the-art methods.Comment: Accepted at ACL 2023, Finding
An Adversarial Multi-Task Learning Method for Chinese Text Correction with Semantic Detection
Text correction, especially the semantic correction of more widely used
scenes, is strongly required to improve, for the fluency and writing efficiency
of the text. An adversarial multi-task learning method is proposed to enhance
the modeling and detection ability of character polysemy in Chinese sentence
context. Wherein, two models, the masked language model and scoring language
model, are introduced as a pair of not only coupled but also adversarial
learning tasks. Moreover, the Monte Carlo tree search strategy and a policy
network are introduced to accomplish the efficient Chinese text correction task
with semantic detection. The experiments are executed on three datasets and
five comparable methods, and the experimental results show that our method can
obtain good performance in Chinese text correction task for better semantic
rationality.Comment: Published on 31st International Conference on Artificial Neural
Networ
Federated Two Stage Decoupling With Adaptive Personalization Layers
Federated learning has gained significant attention due to its groundbreaking
ability to enable distributed learning while maintaining privacy constraints.
However, as a consequence of data heterogeneity among decentralized devices, it
inherently experiences significant learning degradation and slow convergence
speed. Therefore, it is natural to employ the concept of clustering homogeneous
clients into the same group, allowing only the model weights within each group
to be aggregated. While most existing clustered federated learning methods
employ either model gradients or inference outputs as metrics for client
partitioning, with the goal of grouping similar devices together, may still
have heterogeneity within each cluster. Moreover, there is a scarcity of
research exploring the underlying reasons for determining the appropriate
timing for clustering, resulting in the common practice of assigning each
client to its own individual cluster, particularly in the context of highly non
independent and identically distributed (Non-IID) data. In this paper, we
introduce a two-stage decoupling federated learning algorithm with adaptive
personalization layers named FedTSDP, where client clustering is performed
twice according to inference outputs and model weights, respectively. Hopkins
amended sampling is adopted to determine the appropriate timing for clustering
and the sampling weight of public unlabeled data. In addition, a simple yet
effective approach is developed to adaptively adjust the personalization layers
based on varying degrees of data skew. Experimental results show that our
proposed method has reliable performance on both IID and non-IID scenarios
Graph Fuzzy System: Concepts, Models and Algorithms
Fuzzy systems (FSs) have enjoyed wide applications in various fields,
including pattern recognition, intelligent control, data mining and
bioinformatics, which is attributed to the strong interpretation and learning
ability. In traditional application scenarios, FSs are mainly applied to model
Euclidean space data and cannot be used to handle graph data of non-Euclidean
structure in nature, such as social networks and traffic route maps. Therefore,
development of FS modeling method that is suitable for graph data and can
retain the advantages of traditional FSs is an important research. To meet this
challenge, a new type of FS for graph data modeling called Graph Fuzzy System
(GFS) is proposed in this paper, where the concepts, modeling framework and
construction algorithms are systematically developed. First, GFS related
concepts, including graph fuzzy rule base, graph fuzzy sets and graph
consequent processing unit (GCPU), are defined. A GFS modeling framework is
then constructed and the antecedents and consequents of the GFS are presented
and analyzed. Finally, a learning framework of GFS is proposed, in which a
kernel K-prototype graph clustering (K2PGC) is proposed to develop the
construction algorithm for the GFS antecedent generation, and then based on
graph neural network (GNNs), consequent parameters learning algorithm is
proposed for GFS. Specifically, three different versions of the GFS
implementation algorithm are developed for comprehensive evaluations with
experiments on various benchmark graph classification datasets. The results
demonstrate that the proposed GFS inherits the advantages of both existing
mainstream GNNs methods and conventional FSs methods while achieving better
performance than the counterparts.Comment: This paper has been submitted to a journa
Low-Dose Immune Tolerance Induction in Children With Severe Hemophilia A With High-Titer Inhibitors: Type of Factor 8 Mutation and Outcomes
BACKGROUND: No studies evaluated the role of
OBJECTIVES: To explore the association between
METHODS: Children SHA with high-titer inhibitors who received low-dose ITI therapy at least for 1 year were included in this study. Based on the risk of inhibitor development,
RESULTS: Of 104 children included, 101 had
CONCLUSIONS: Types o
Case report: Effectiveness of sirolimus in treating partial DiGeorge Syndrome with Autoimmune Lymphoproliferative Syndrome (ALPS)-like features
BackgroundDiGeorge Syndrome (DGS) is a rare disease associated with 22q11.2 chromosomal microdeletion, also known as a velocardiofacial syndrome, based on the frequent involvements of the palate, facial, and heart problems. Hematologic autoimmunity is rare in DGS but presents with a refractory course and poor prognosis. Herein, we report a case of partial DGS in a patient with refractory immune cytopenia and autoimmune lymphoproliferative syndrome (ALPS)-like manifestations.Case descriptionA 10-year-old boy with growth retardation presented initially with a ventricular septal defect at 7 months old, which had been repaired soon after. The patient suffered from thrombocytopenia and progressed into chronic refractory immune thrombocytopenia (ITP) at 30 months old. One year later, the patient developed multilineage cytopenias including thrombocytopenia, neutropenia, and anemia. First-line treatment of ITP, like high-dose dexamethasone and intravenous immunoglobulin, had little or short-term effect on controlling symptoms. Whole-exome sequencing revealed the presence of a de novo heterozygous 2.520 Mb deletion on chromosome 22q11.21. Moreover, decreased proportion of naive T cells and elevated double-negative T cells were found. The patient was given sirolimus therapy (1.5 mg/m2, actual blood concentration range: 4.0–5.2 ng/ml) without adding other immunosuppressive agents. The whole blood cell count was gradually restored after a month, and the disease severity was soothed with less frequency of infections and bleeding events. Decreased spleen size and restrained lymph node expansion were achieved after 3-month sirolimus monotherapy.ConclusionsThis case is the first description on the efficacy of sirolimus monotherapy to treat refractory multilineage cytopenias of DGS presented with ALPS-like features
An Extended Reinforcement Learning Framework to Model Cognitive Development With Enactive Pattern Representation
In order to make machines more intelligent, it is inevitable to understand human-like cognitive development, in which adaptive, autonomous and progressive evolution of cognitive decision-making in interacting with the environment plays a key role. Inspired by enactive artificial intelligence and evolutionary sampling learning, anew cognitive development learning model termed evolutionary enactive learning is proposed in this work. The proposed model is constructed by extending the reinforcement learning framework and introducing the utility-selection theory to guide the coevolution of pattern representation and decision-making policies. Theoretical analysis on the model’s validity of evolutionary enactive learning is given. To further demonstrate the effectiveness of the proposed method,two simulated cognitive decision-making tasks are designed, in which pattern representation and decision-making must be jointly developed to achieve good cognitive performance. Our experimental results clearly demonstrate that the resulting learning process is rational and effective. Finally, we indicate that the proposed evolutionary enactive learning could be readily further extended by introducing existing machine learning techniques to solve more practical applications
An Extended Reinforcement Learning Framework to Model Cognitive Development with Enactive Pattern Representation
In order to make machines more intelligent, it is inevitable to understand human-like cognitive development, in which adaptive, autonomous and progressive evolution of cognitive decision-making in interacting with the environment plays a key role. Inspired by enactive artificial intelligence and evolutionary sampling learning, anew cognitive development learning model termed evolutionary enactive learning is proposed in this work. The proposed model is constructed by extending the reinforcement learning framework and introducing the utility-selection theory to guide the coevolution of pattern representation and decision-making policies. Theoretical analysis on the model’s validity of evolutionary enactive learning is given. To further demonstrate the effectiveness of the proposed method,two simulated cognitive decision-making tasks are designed, in which pattern representation and decision-making must be jointly developed to achieve good cognitive performance. Our experimental results clearly demonstrate that the resulting learning process is rational and effective. Finally, we indicate that the proposed evolutionary enactive learning could be readily further extended by introducing existing machine learning techniques to solve more practical applications
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