Natural selection and context-dependent values

نویسندگان

چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Natural selection and density-dependent population growth.

Natural selection was studied in the context of density-dependent population growth using a single locus, continuous time model for the rates of change of population size and allele frequency. The maximization principle of density-dependent selection was applied to a class of fitness expressions with explicit recruitment and mortality terms. Three general results were obtained: First, at low po...

متن کامل

Automated Model Selection Using Context-Dependent Behaviors

Effective problem-solving about complex engineered devices requires device models that are both adequate for the problem and computationally efficient . Producing such models requires identifying the relevant device features and determining applicable simplifications . This paper presents a method for automatically constructing a device model by selecting an appropriate model for each of the de...

متن کامل

Context dependence, ancestral misidentification, and spurious signatures of natural selection.

Population genetic analyses often use polymorphism data from one species, and orthologous genomic sequences from closely related outgroup species. These outgroup sequences are frequently used to identify ancestral alleles at segregating sites and to compare the patterns of polymorphism and divergence. Inherent in such studies is the assumption of parsimony, which posits that the ancestral state...

متن کامل

Age-dependent sexually asymmetric selection: the use of intrinsic values.

To study the evolutionary role played by differential male and female fertility (sexual asymmetry) both between individuals and over the life span within single individuals, the terms "intrinsic male fertility" and "intrinsic female fertility" are introduced. With the help of these terms, the concept of sexual asymmetry can be made precise and its effect on the establishment and maintenance of ...

متن کامل

Context-Dependent Regression Testing for Natural Language Processing

Regression testing of natural language systems is problematic for two main reasons: component input and output is complex, and system behaviour is context-dependent. We have developed a generic approach which solves both of these issues. We describe our regression tool, CONTEST, which supports context-dependent testing of dialogue system components, and discuss the regression test sets we devel...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Proceedings of the Royal Society of London. Series B: Biological Sciences

سال: 1997

ISSN: 0962-8452,1471-2954

DOI: 10.1098/rspb.1997.0213