An improved initialization method for fuzzy cmeans (FCM) method is proposed which aims at solving the two important issues of clustering performance affected by initial cluster centers and number of clusters. A density based approach is needed to identify the closeness of the data points and to extract cluster center. DBSCAN approach defines ε–neighborhood of a point to determine the core objec...

the neighborhood is a major factor in urbanism where habitation is characterized.in iranian traditional cities, the concept of neighborhood demonstrates the values of well-being, identity and sociability. neighborhoods can be approached into the following ways: external view that includes official boundaries, issues related to urban development and urban management. internal view that is based ...

Neighborhoods within the hierarchy of urban structure are one of the smallest socio-physical building blocks of cities. Traditional neighborhoods of Iranian historic cities benefited from strong social relations which were flourished over the years and were manifested in the neighborhoods centers. In the modern era, the new master plans and the complementary local plans have disintegrated th...

in this paper, the concept of {sl local base with  stratifiedstructure} in $i$-topological vector spaces is introduced. weprove that every $i$-topological vector space has a balanced localbase with stratified structure. furthermore, a newcharacterization of $i$-topological vector spaces by means of thelocal base with stratified structure is given.

The p-center problem is a well-known and highly studied pertaining to the identification of p potential n center locations in such way as minimize maximum distance between users closest center. As opposed p-center, p-second minimizes sum distances from second centers. In this paper, we propose new Variable Neighborhood Search based algorithm for solving problem. Its performance assessed on benc...

The author reviews the scientific potential of Laser Interferometer Space Antenna (LISA), a space-borne gravitational wave (GW) observatory to be launched in early 30s. Thanks its sensitivity milli-Hz frequency range, LISA will reveal variety GW sources across Universe, from our Solar neighborhood potentially all way back Big Bang, promising game changer understanding astrophysics, cosmology, a...