In considering key events of genomic disorders in the development and progression of cancer, the correlation between genomic instability and carcinogenesis is currently under investigation. In this work, we propose an...In considering key events of genomic disorders in the development and progression of cancer, the correlation between genomic instability and carcinogenesis is currently under investigation. In this work, we propose an inductive logic programming approach to the problem of modeling evolution patterns for breast cancer. Using this approach, it is possible to extract fingerprints of stages of the disease that can be used in order to develop and deliver the most adequate therapies to patients. Furthermore, such a model can help physicians and biologists in the elucidation of molecular dynamics underlying the aberrations-waterfall model behind carcinogenesis. By showing results obtained some hints about further approach to the hypotheses. on a real-world dataset, we try to give knowledge-driven validations of such展开更多
Inductive logic programming adopts the standard horn lope program as its logic framework for inductivelearning. Due to the fact, however, that the expressive power of horn logic is relatively limited and the mechansm ...Inductive logic programming adopts the standard horn lope program as its logic framework for inductivelearning. Due to the fact, however, that the expressive power of horn logic is relatively limited and the mechansm ofnegation is mostly that of negation as failure, it is difficult to make full use of negative information and consequentlynot suitable for inductive learning. This Paper adopts nounal lope program as me language of inductive logic programsand presents accordingly a kind of semantics called Limited Negation semantics. The issues of direct denotation andinference of negation in concept induction are solved. The paper shows that LN is directly generalized for the semantics of Well-Founded in die significance Of optional negation and has superior theoretical features, especially the capability Of expressing and processing negation by introducing the constant ’false’. ExperimentS also show that the inductive concepts in learning are accurately interpreted with LN.展开更多
Code defects can lead to software vulnerability and even produce vulnerability risks.Existing research shows that the code detection technology with text analysis can judge whether object-oriented code files are defec...Code defects can lead to software vulnerability and even produce vulnerability risks.Existing research shows that the code detection technology with text analysis can judge whether object-oriented code files are defective to some extent.However,these detection techniques are mainly based on text features and have weak detection capabilities across programs.Compared with the uncertainty of the code and text caused by the developer’s personalization,the programming language has a stricter logical specification,which reflects the rules and requirements of the language itself and the developer’s potential way of thinking.This article replaces text analysis with programming logic modeling,breaks through the limitation of code text analysis solely relying on the probability of sentence/word occurrence in the code,and proposes an object-oriented language programming logic construction method based on method constraint relationships,selecting features through hypothesis testing ideas,and construct support vector machine classifier to detect class files with defects and reduce the impact of personalized programming on detection methods.In the experiment,some representative Android applications were selected to test and compare the proposed methods.In terms of the accuracy of code defect detection,through cross validation,the proposed method and the existing leading methods all reach an average of more than 90%.In the aspect of cross program detection,the method proposed in this paper is superior to the other two leading methods in accuracy,recall and F1 value.展开更多
To overcome inefficiency in traditional logic programming, a declarative programming language COPS is designed based on the notion of concurrent constraint programming (CCP). The improvement is achieved by the adoptio...To overcome inefficiency in traditional logic programming, a declarative programming language COPS is designed based on the notion of concurrent constraint programming (CCP). The improvement is achieved by the adoption of constraint-based heuristic strategy and the introduction of deterministic components in the framework of CCP. Syntax specification and an operational semantic description are presented.展开更多
The Learning method of inductive logic programming evaluates the the quality of inductive hypotheses commonlyby how well the hypotheses cover training examples extensionally. Ths kind of evalution will be completely i...The Learning method of inductive logic programming evaluates the the quality of inductive hypotheses commonlyby how well the hypotheses cover training examples extensionally. Ths kind of evalution will be completely inapplica-ble to the situation where there are non-simple or noise examples. Based on Limited Negative semantics, This paperextends induction of simple examples to that of generalized ones and presents 3 criteria on accepting inductive hypothe-ses in order to fit for different goals of induction. The relation between inductive hypotheses and background knowledgeis also established in this Paper. The conclusions in this paper are helpful to implement learning algorithms and to ex-tend application fields of ILP.展开更多
基于回答集语义的逻辑程序(Answer Set Programming,ASP)是描述性问题求解的典范,广泛应用于规划、诊断、调度以及生物信息学等领域。为了增强ASP的表达能力,一些工作在ASP引入了数据库系统中的聚合函数约束,并提出了SPT,FLP等语义,抽...基于回答集语义的逻辑程序(Answer Set Programming,ASP)是描述性问题求解的典范,广泛应用于规划、诊断、调度以及生物信息学等领域。为了增强ASP的表达能力,一些工作在ASP引入了数据库系统中的聚合函数约束,并提出了SPT,FLP等语义,抽象约束剥离聚合函数约束的具体形式成为研究ASP语义等性质的重要工具,并得到了抽象约束逻辑程序的各种回答集语义之间的关系和复杂性问题等的相关结果。对此,进一步研究了仅含凸抽象约束原子抽象约束逻辑的性质,证明了仅含凸抽象约束原子的正规逻辑程序判定是否存在FLP回答集是Σ_(2)^(p)完全的,其审慎推理和大胆推理分别是Π_(2)^(p)完全的和Σ_(2)^(p)完全的。这些复杂性结果进一步理清了各类逻辑程序间的表达能力关系,为设计有效的回答集求解器提供了新的思路,也为进一步探索ASP在解决用凸抽象约束表示的问题中的应用提供了理论基础。展开更多
The notion of abduction was first introduced by the philosopher and logician C. S. Pierce, who claims de-duction, abduction and induction are three different forms of human reasoning. Broadly speaking, abduction is a ...The notion of abduction was first introduced by the philosopher and logician C. S. Pierce, who claims de-duction, abduction and induction are three different forms of human reasoning. Broadly speaking, abduction is a rea-soning process invoked to explain a puzzling observation. The study of logic-based abduction has been the most activeresearch in AI, and there are many results around the subject. This paper surveys the state-of-the-art research andpresents some problems for future work.展开更多
文摘In considering key events of genomic disorders in the development and progression of cancer, the correlation between genomic instability and carcinogenesis is currently under investigation. In this work, we propose an inductive logic programming approach to the problem of modeling evolution patterns for breast cancer. Using this approach, it is possible to extract fingerprints of stages of the disease that can be used in order to develop and deliver the most adequate therapies to patients. Furthermore, such a model can help physicians and biologists in the elucidation of molecular dynamics underlying the aberrations-waterfall model behind carcinogenesis. By showing results obtained some hints about further approach to the hypotheses. on a real-world dataset, we try to give knowledge-driven validations of such
文摘Inductive logic programming adopts the standard horn lope program as its logic framework for inductivelearning. Due to the fact, however, that the expressive power of horn logic is relatively limited and the mechansm ofnegation is mostly that of negation as failure, it is difficult to make full use of negative information and consequentlynot suitable for inductive learning. This Paper adopts nounal lope program as me language of inductive logic programsand presents accordingly a kind of semantics called Limited Negation semantics. The issues of direct denotation andinference of negation in concept induction are solved. The paper shows that LN is directly generalized for the semantics of Well-Founded in die significance Of optional negation and has superior theoretical features, especially the capability Of expressing and processing negation by introducing the constant ’false’. ExperimentS also show that the inductive concepts in learning are accurately interpreted with LN.
基金This work was supported by National Key RD Program of China under Grant 2017YFB0802901.
文摘Code defects can lead to software vulnerability and even produce vulnerability risks.Existing research shows that the code detection technology with text analysis can judge whether object-oriented code files are defective to some extent.However,these detection techniques are mainly based on text features and have weak detection capabilities across programs.Compared with the uncertainty of the code and text caused by the developer’s personalization,the programming language has a stricter logical specification,which reflects the rules and requirements of the language itself and the developer’s potential way of thinking.This article replaces text analysis with programming logic modeling,breaks through the limitation of code text analysis solely relying on the probability of sentence/word occurrence in the code,and proposes an object-oriented language programming logic construction method based on method constraint relationships,selecting features through hypothesis testing ideas,and construct support vector machine classifier to detect class files with defects and reduce the impact of personalized programming on detection methods.In the experiment,some representative Android applications were selected to test and compare the proposed methods.In terms of the accuracy of code defect detection,through cross validation,the proposed method and the existing leading methods all reach an average of more than 90%.In the aspect of cross program detection,the method proposed in this paper is superior to the other two leading methods in accuracy,recall and F1 value.
文摘To overcome inefficiency in traditional logic programming, a declarative programming language COPS is designed based on the notion of concurrent constraint programming (CCP). The improvement is achieved by the adoption of constraint-based heuristic strategy and the introduction of deterministic components in the framework of CCP. Syntax specification and an operational semantic description are presented.
文摘The Learning method of inductive logic programming evaluates the the quality of inductive hypotheses commonlyby how well the hypotheses cover training examples extensionally. Ths kind of evalution will be completely inapplica-ble to the situation where there are non-simple or noise examples. Based on Limited Negative semantics, This paperextends induction of simple examples to that of generalized ones and presents 3 criteria on accepting inductive hypothe-ses in order to fit for different goals of induction. The relation between inductive hypotheses and background knowledgeis also established in this Paper. The conclusions in this paper are helpful to implement learning algorithms and to ex-tend application fields of ILP.
文摘基于回答集语义的逻辑程序(Answer Set Programming,ASP)是描述性问题求解的典范,广泛应用于规划、诊断、调度以及生物信息学等领域。为了增强ASP的表达能力,一些工作在ASP引入了数据库系统中的聚合函数约束,并提出了SPT,FLP等语义,抽象约束剥离聚合函数约束的具体形式成为研究ASP语义等性质的重要工具,并得到了抽象约束逻辑程序的各种回答集语义之间的关系和复杂性问题等的相关结果。对此,进一步研究了仅含凸抽象约束原子抽象约束逻辑的性质,证明了仅含凸抽象约束原子的正规逻辑程序判定是否存在FLP回答集是Σ_(2)^(p)完全的,其审慎推理和大胆推理分别是Π_(2)^(p)完全的和Σ_(2)^(p)完全的。这些复杂性结果进一步理清了各类逻辑程序间的表达能力关系,为设计有效的回答集求解器提供了新的思路,也为进一步探索ASP在解决用凸抽象约束表示的问题中的应用提供了理论基础。
文摘The notion of abduction was first introduced by the philosopher and logician C. S. Pierce, who claims de-duction, abduction and induction are three different forms of human reasoning. Broadly speaking, abduction is a rea-soning process invoked to explain a puzzling observation. The study of logic-based abduction has been the most activeresearch in AI, and there are many results around the subject. This paper surveys the state-of-the-art research andpresents some problems for future work.
