In field studies designed to uncover opportunities for computationallyintensive business applications, we observed an interaction pattern we term "constellations" in which people depend on a variety of people and information sources to perform the duties of their employ. Constellations are significant for several reasons, constellations extensively cross organizational and corporate boundaries,...

To deal with complex customer needs, enterprises increasingly form constellations, rather than just operate on their own. Cisco Systems and Dell are good examples of organizers of such constellations in their own industries. An important problem while designing these constellations is the selection of a performing enterprise for each value adding activity in the constellation. In this paper, we...

Although information technology (IT) outsourcing is widely applied by companies and has been intensively researched, there has been little scientific research on the differences in singleversus multi-sourcing constellations. Furthermore, linear extension of single-sourcing to multi-sourcing is limited, despite the fact that companies utilize multi-sourcing more frequently in recent times. This ...

| In this paper, multilevel coded modulation with multistage decoding and unequal error protection is discussed. Three types of unconventional partitionings for 8-PSK and 16(64)-QAM constellations with UEP capabilities are analyzed. Based on the tight upper/approximated bounds on bit error probability, it is shown that more degrees of freedom in the construction of multilevel coding and multist...

A practical communication channel often suffers from constraints on input other than the average power, such as the peak power constraint. In order to compare achievable rates with different constellations as well as the channel capacity under such constraints, it is crucial to take these constraints into consideration properly. In this paper, we propose a direct approach to compare the achieva...

This is an extension algorithm previously presented in [1] for decoded modulation systems with block codes for 8-PSK and 16-PSK constellations. The proposed algorithm presents a search mechanism of the least reliable points from the first code array and generate vectors for the Modified BCM, ZNA decoder, described in [1]. It is also presented a mapping of the 8-PSK and 16-PSK constellations in ...

Point constellation recognition is a commonproblemwithmany pattern matching applications. Whilst useful in many contexts, this work is mainly motivated by fingerprint matching. Fingerprints are traditionally modelled as constellations of oriented points called minutiae. The fingerprint verifier’s task consists in comparing two point constellations. The compared constellations may differ by rota...

the linear adiabatic pulsation-periods of mira variable stars have been derived. approximately 2701[1]models were calculated for m = 0.7 mθ to 2 mθ stars with radii from 180 rθ to 340 rθ and luminosities from 2800 lθ to 10,000 lθ. the chemical composition of all models is (x,z) = (0.7,0.02). from the result of this study, linear relations on luminosity-period-mass relationship and luminosity-pe...