In: Susan Stuart, Gordana Dodig-Crnkovic (Ed.), Computation, Information, Cognition. The Nexus an... more In: Susan Stuart, Gordana Dodig-Crnkovic (Ed.), Computation, Information, Cognition. The Nexus and the Liminal. Cambridge: Cambridge Scholars Publishing.
A resonance state with three equivalent electrons and one proton has been identified. Large scale... more A resonance state with three equivalent electrons and one proton has been identified. Large scale calculations have been performed in the framework of the complex-rotated Hamiltonian and indicate strong correlation effects in this system. The findings are rationalized by comparing with bound doubly charged anions and calculations in the infinite dimension limit. [S0031-9007(96) PACS numbers: 32.70.Fw, 32.80.Dz Singly charged negative ions in the gas phase have attracted considerable attention over the past decades, whereas the existence of free doubly charged negative ions has remained a curiosity and only recent experimental and theoretical studies have definitely shown that small dianions may exist as isolated entities . Surprisingly, many dianions which are well known in solids or solutions cannot permanently bind two extra electrons in the gas phase, and, in contrast, many systems which are found or predicted to form stable free doubly charged anions are not known in classical chemistry. In view of the Coulomb repulsion between the two extra electrons the question "Which is the smallest molecular or atomic system that can bind two additional electrons?" has drawn substantial interest. Out of the many findings that have been recently reviewed [1,2], let us briefly mention two outstanding examples. Doubly charged carbon clusters C n 22 ͑n 7 28͒ with lifetimes .10 26 s have been observed in a mass spectrometer [3] and dianions of the type MX 3 22 ͑M Li, Na, K; X F, Cl͒ have been predicted theoretically to form stable dianions .
A resonance state with three equivalent electrons and one proton has been identified. Large-scale... more A resonance state with three equivalent electrons and one proton has been identified. Large-scale calculations have been performed using the complex-rotation technique, and the results indicate that the investigated 4 S o state of H 2Ϫ is strongly correlated. The findings are rationalized by comparing with bound doubly charged anions, isoelectronic states of the Li atom, and calculations in the infinite-dimension limit. In addition, the emerging picture is sustained by an analysis of the complex-rotated wave function.
Recently, Cress and Kimmerle have suggested the Co-evolution Model of Cognitive and Social System... more Recently, Cress and Kimmerle have suggested the Co-evolution Model of Cognitive and Social Systems based on Luhmann's theory of communication. It allows better understanding collaborative knowledge building in wikis and other social media [1]. Alternatively, Riss and Magenheim have suggested a Sociofact Theory of social knowledge that is based on Symbolic Interactionism [2]. It emphasizes the role of deviations in common understanding of information artefacts. Although different at first glance, it is shown that both theories are based on similar ideas.
Abstract The increasing agility of business requires an accelerated adaptation of organizations t... more Abstract The increasing agility of business requires an accelerated adaptation of organizations to continuously changing conditions. Individual and organizational learning are prominent means to achieve this. Hereby learning is always accompanied by the development of knowledge artifacts. For the entire of learning and artifact development the term knowledge maturing has been introduced recently, which focuses on these three manifestations of knowledge: cognifacts, sociofacts, and artifacts.
The reflection and transmission properties of different complex absorbing potentials (CAPs) are s... more The reflection and transmission properties of different complex absorbing potentials (CAPs) are studied using WKB and scaling procedures which make the results transferable to any mass and kinetic energy. Explicit formulas are obtained which describe the reflection and transmission properties of monomial CAPs− iηx with high accuracy. These properties are now well understood.
The simplest ab initio method for studying electronmolecule scattering is the static-exchange app... more The simplest ab initio method for studying electronmolecule scattering is the static-exchange approximation [1]. The electron-molecule interaction potential is in this case determined by the uncorrelated one-particle density. The static-exchange approach can be viewed as an extension of the self-consistent-field(SCF) method to the con-tinuum, ie, the computed scattering wave functions are the (numerically exact) virtual orbitals of the Fock opera-tor. The method thus ignores correlation completely.
A method and system are disclosed for automatically updating individual conditions associated wit... more A method and system are disclosed for automatically updating individual conditions associated with a pending conditional financial transaction. As the price of a financial instrument varies, a pending conditional financial transaction may be issued to cause the financial instrument to be bought or sold whenever its price satisfies certain specified conditions.
Apparatus, systems, and methods that operate to automatically extract metadata from information o... more Apparatus, systems, and methods that operate to automatically extract metadata from information objects are disclosed. Activities may include displaying a journal comprising a plurality of consolidated items, wherein at least some of the plurality of consolidated items have been created based on detecting a first pre-selected operation associated with an information object, and automatically extracting ontology-based metadata related to the first pre-selected operation and native to the information object.
Embodiments include a system for providing an identification of a collaborative task. The system ... more Embodiments include a system for providing an identification of a collaborative task. The system may include a communication unit and a processing unit. The communication unit may be configured to receive a request of a user to create the collaborative task and send task metadata to a further system. The processing unit may be configured to generate the task metadata. The task metadata may be a part of the collaborative task and identifying the collaborative task as a part of a process.
Described herein are systems and methods for constructing linear representations of content based... more Described herein are systems and methods for constructing linear representations of content based networks.
An information access system and method are disclosed. A system includes a user input device and ... more An information access system and method are disclosed. A system includes a user input device and a graphical user interface responsive to commands from the user input device. A plurality of graphical structures is displayed in the graphical user interface. Each graphical structure is defined by three or more spatial dimensions, the intersection of which defines a segment. Each segment represents a defined group of information associated with the intersection of dimensions.
Abstract This paper presents the principles of pattern-based task management (PBTM) that aims at ... more Abstract This paper presents the principles of pattern-based task management (PBTM) that aims at knowledge maturing based on the integration of task and knowledge management. It takes into account that knowledge does not only manifest in artifacts but also in actions. The approach supports knowledge workers in the execution of their tasks by offering guiding task patterns without restricting their freedom of execution.
Abstract. The calculation of energies and lifetimes of metastable molecules requires the treatmen... more Abstract. The calculation of energies and lifetimes of metastable molecules requires the treatment of both the continuum and correlation effects. We describe the complex absorbing potential approach incorporated within a configuration-interaction framework. The absorbing potential method allows a very efficient solution of the continuum problem, making possible a detailed study of the correlation effects that turn out to be surprisingly strong.
In: Susan Stuart, Gordana Dodig-Crnkovic (Ed.), Computation, Information, Cognition. The Nexus an... more In: Susan Stuart, Gordana Dodig-Crnkovic (Ed.), Computation, Information, Cognition. The Nexus and the Liminal. Cambridge: Cambridge Scholars Publishing.
A resonance state with three equivalent electrons and one proton has been identified. Large scale... more A resonance state with three equivalent electrons and one proton has been identified. Large scale calculations have been performed in the framework of the complex-rotated Hamiltonian and indicate strong correlation effects in this system. The findings are rationalized by comparing with bound doubly charged anions and calculations in the infinite dimension limit. [S0031-9007(96) PACS numbers: 32.70.Fw, 32.80.Dz Singly charged negative ions in the gas phase have attracted considerable attention over the past decades, whereas the existence of free doubly charged negative ions has remained a curiosity and only recent experimental and theoretical studies have definitely shown that small dianions may exist as isolated entities . Surprisingly, many dianions which are well known in solids or solutions cannot permanently bind two extra electrons in the gas phase, and, in contrast, many systems which are found or predicted to form stable free doubly charged anions are not known in classical chemistry. In view of the Coulomb repulsion between the two extra electrons the question "Which is the smallest molecular or atomic system that can bind two additional electrons?" has drawn substantial interest. Out of the many findings that have been recently reviewed [1,2], let us briefly mention two outstanding examples. Doubly charged carbon clusters C n 22 ͑n 7 28͒ with lifetimes .10 26 s have been observed in a mass spectrometer [3] and dianions of the type MX 3 22 ͑M Li, Na, K; X F, Cl͒ have been predicted theoretically to form stable dianions .
A resonance state with three equivalent electrons and one proton has been identified. Large-scale... more A resonance state with three equivalent electrons and one proton has been identified. Large-scale calculations have been performed using the complex-rotation technique, and the results indicate that the investigated 4 S o state of H 2Ϫ is strongly correlated. The findings are rationalized by comparing with bound doubly charged anions, isoelectronic states of the Li atom, and calculations in the infinite-dimension limit. In addition, the emerging picture is sustained by an analysis of the complex-rotated wave function.
Recently, Cress and Kimmerle have suggested the Co-evolution Model of Cognitive and Social System... more Recently, Cress and Kimmerle have suggested the Co-evolution Model of Cognitive and Social Systems based on Luhmann's theory of communication. It allows better understanding collaborative knowledge building in wikis and other social media [1]. Alternatively, Riss and Magenheim have suggested a Sociofact Theory of social knowledge that is based on Symbolic Interactionism [2]. It emphasizes the role of deviations in common understanding of information artefacts. Although different at first glance, it is shown that both theories are based on similar ideas.
Abstract The increasing agility of business requires an accelerated adaptation of organizations t... more Abstract The increasing agility of business requires an accelerated adaptation of organizations to continuously changing conditions. Individual and organizational learning are prominent means to achieve this. Hereby learning is always accompanied by the development of knowledge artifacts. For the entire of learning and artifact development the term knowledge maturing has been introduced recently, which focuses on these three manifestations of knowledge: cognifacts, sociofacts, and artifacts.
The reflection and transmission properties of different complex absorbing potentials (CAPs) are s... more The reflection and transmission properties of different complex absorbing potentials (CAPs) are studied using WKB and scaling procedures which make the results transferable to any mass and kinetic energy. Explicit formulas are obtained which describe the reflection and transmission properties of monomial CAPs− iηx with high accuracy. These properties are now well understood.
The simplest ab initio method for studying electronmolecule scattering is the static-exchange app... more The simplest ab initio method for studying electronmolecule scattering is the static-exchange approximation [1]. The electron-molecule interaction potential is in this case determined by the uncorrelated one-particle density. The static-exchange approach can be viewed as an extension of the self-consistent-field(SCF) method to the con-tinuum, ie, the computed scattering wave functions are the (numerically exact) virtual orbitals of the Fock opera-tor. The method thus ignores correlation completely.
A method and system are disclosed for automatically updating individual conditions associated wit... more A method and system are disclosed for automatically updating individual conditions associated with a pending conditional financial transaction. As the price of a financial instrument varies, a pending conditional financial transaction may be issued to cause the financial instrument to be bought or sold whenever its price satisfies certain specified conditions.
Apparatus, systems, and methods that operate to automatically extract metadata from information o... more Apparatus, systems, and methods that operate to automatically extract metadata from information objects are disclosed. Activities may include displaying a journal comprising a plurality of consolidated items, wherein at least some of the plurality of consolidated items have been created based on detecting a first pre-selected operation associated with an information object, and automatically extracting ontology-based metadata related to the first pre-selected operation and native to the information object.
Embodiments include a system for providing an identification of a collaborative task. The system ... more Embodiments include a system for providing an identification of a collaborative task. The system may include a communication unit and a processing unit. The communication unit may be configured to receive a request of a user to create the collaborative task and send task metadata to a further system. The processing unit may be configured to generate the task metadata. The task metadata may be a part of the collaborative task and identifying the collaborative task as a part of a process.
Described herein are systems and methods for constructing linear representations of content based... more Described herein are systems and methods for constructing linear representations of content based networks.
An information access system and method are disclosed. A system includes a user input device and ... more An information access system and method are disclosed. A system includes a user input device and a graphical user interface responsive to commands from the user input device. A plurality of graphical structures is displayed in the graphical user interface. Each graphical structure is defined by three or more spatial dimensions, the intersection of which defines a segment. Each segment represents a defined group of information associated with the intersection of dimensions.
Abstract This paper presents the principles of pattern-based task management (PBTM) that aims at ... more Abstract This paper presents the principles of pattern-based task management (PBTM) that aims at knowledge maturing based on the integration of task and knowledge management. It takes into account that knowledge does not only manifest in artifacts but also in actions. The approach supports knowledge workers in the execution of their tasks by offering guiding task patterns without restricting their freedom of execution.
Abstract. The calculation of energies and lifetimes of metastable molecules requires the treatmen... more Abstract. The calculation of energies and lifetimes of metastable molecules requires the treatment of both the continuum and correlation effects. We describe the complex absorbing potential approach incorporated within a configuration-interaction framework. The absorbing potential method allows a very efficient solution of the continuum problem, making possible a detailed study of the correlation effects that turn out to be surprisingly strong.
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Papers by Uwe Riss