نتایج جستجو برای: transitivity
تعداد نتایج: 2590 فیلتر نتایج به سال:
This paper forms part of the general development of the theory of quasigroup permutation representations. Here, the concept of sharp transitivity is extended from group actions to quasigroup actions. Examples of nontrivial sharply transitive sets of quasigroup actions are constructed. A general theorem shows that uniformity of the action is necessary for the existence of a sharply transitive se...
In plants, worms, and fungi, RNA-dependent RNA polymerases (RDRs) amplify the production of short-interfering RNAs (siRNAs) that mediate RNA silencing. In Arabidopsis, RDR6 is thought to copy endogenous and exogenous RNA templates into double-stranded RNAs (dsRNAs), which are subsequently processed into siRNAs by one or several of the four Dicer-like enzymes (DCL1-->4). This reaction produces s...
In this paper, we propose a class of models for generating spatial versions of three classic networks: Erdös-Rényi (ER), Watts-Strogatz (WS), and BarabásiAlbert (BA). We assume that nodes have geographical coordinates, are uniformly distributed over an m 9 m Cartesian space, and long-distance connections are penalized. Our computational results show higher clustering coefficient, assortativity,...
Current research in Latent Semantic Indexing (LSI) shows improvements in performance for a wide variety of Information Retrieval systems. Researchers use experimental methods to determine the appropriate number of dimensions for a given application. We propose the development of a theoretical foundation for determination of this parameter for LSI. We assert that LSI’s use of higher orders of co...
The psychological validity of inheritance reasoners is clarified. Elio and Pelletier (1993) presented the first pilot experiment exploring some of these issues. We investigate other foundational assumptions of inheritance reasoning with defaults: transitivity, blocking of transitivity by negative defaults, preemption in terms of structurally defined specificity and structurally defined redundan...
1 Theory of Agents and Messages for Security Protocols 13 1.0.1 Inductive Definition of All Parts” of a Message . . . . . . 14 1.0.2 Inverse of keys . . . . . . . . . . . . . . . . . . . . . . . . 14 1.1 keysFor operator . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 1.2 Inductive relation ”parts” . . . . . . . . . . . . . . . . . . . . . . 15 1.2.1 Unions . . . . . . . . . . . . . . ...
Finite type subshifts with finite number of symbols are important sort of discrete dynamical systems (often called symbolic dynamics) and are intensively studied [2, 3, 4, 5, 6]. Mañé proved a theorem (for finite type subshifts generated by 0, 1-square matrices), stating that topological transitivity and topological mixing can be reduced to algebraic properties of associated matrices [5]. In th...
The Chinese verb-result compound is productive, but its meaning and syntactic behaviors have posed challenges to theoretical and automatic analyses. Theory-wise, the current study proposes that VRs have inherent affecting direction, which argument mapping principles and selectional restrictions, event structures, or the kinds of semantic/pragmatic principles or real-world knowledge proposed by ...
Anti-transitivity captures the notion that enemies of enemies are friends, and arises naturally in the study of adversaries in social networks and in the study of conflicting nation states or organizations. We present a simplified, evolutionary model for anti-transitivity influencing link formation in complex networks, and analyze the model’s network dynamics. The Iterated Local Anti-Transitivi...
The current study analyzes international newspapers headlines depicting Russia attack on Ukraine. Different worldwide were chosen to highlight the embedded ideologies by applying Halliday’s transitivity system as a research instrument. researcher analyzed lexical choices and linguistic devices used in represent Putin war between He investigated way language is newspapers’ headline create emotio...
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