Frames interdisziplinär Alexander Ziem, Lars Inderelst, Detmer Wulf / Alexander Ziem, Lars Inderelst, Detmer Wulf
2018, 2018-06-25
eBook
Open access
Das Frame-Konzept als kognitives Repräsentationsformat ist seit seiner Einführung durch Minsky und Fillmore vielfach rezipiert und modifiziert worden. Dieser interdisziplinär ausgerichtete Band ...vereint Beiträge aus so unterschiedlichen Disziplinen wie Linguistik, Philosophie, Medien-, Kommunikations- und Informationswissenschaften bis hin zur Klinischen Psychiatrie, die das Frame-Konzept aus grundlagentheoretischer sowie methodologischer Perspektive in den Blick nehmen, die aber auch verschiedene Anwendungsfelder für Frames erproben.
This paper concerns the notions of closed and open maps in the setting of partial frames, which, in contrast to full frames, do not necessarily have all joins. Examples of these include bounded ...distributive lattices,
σ
- and
κ
-frames and full frames. We define closed and open maps using geometrically intuitively appealing conditions involving preservation of closed, respectively open, congruences under certain maps. We then characterize them in terms of algebraic identities involving adjoints. We note that partial frame maps need have neither right nor left adjoints whereas frame maps of course always have right adjoints. The embedding of a partial frame in either its free frame or its congruence frame has proved illuminating and useful. We consider the conditions under which these embeddings are closed, open or skeletal. We then look at preservation and reflection of closed or open maps under the functors providing the free frame or the congruence frame. Points arise naturally in the construction of the spectrum functor for partial frames to partial spaces. They may be viewed as maps from the given partial frame to the 2-chain or as certain kinds of filters; using the former description we consider closed and open points. Any point of a partial frame extends naturally to a point on its free frame and a point on its congruence frame; we consider the closedness or openness of these.
In this paper, we give some sufficient conditions under which perturbations preserve ℓp-localized frames. Using an arbitrary given sequence, we provide a simple way for constructing ℓp-localized ...sequences.
This paper concerns the congruence frame in the setting of partial frames, which, in contrast to full frames, do not necessarily have all joins. Examples of these include bounded distributive ...lattices, σ- and κ-frames. A new class of congruences, called Heyting congruences, helps to illuminate the structure of these congruence frames. Defining these involves the very useful free frame over a partial frame. We investigate the relationship between Heyting congruences and co-atoms of the congruence frame, showing how different the cases of full and partial frames can be.
The Madden congruence, which yields the least dense quotient, is recognized as a particular Heyting congruence. While the collection of all Heyting congruences on a partial frame is in general not even a meet-semilattice, joining each of them with the Madden congruence results in a collection with considerably more interesting structure.
Meaning, Frames, and Conceptual Representation Thomas Gamerschlag, Doris Gerland, Rainer Osswald, Wiebke Petersen / Thomas Gamerschlag, Doris Gerland, Rainer Osswald, Wiebke Petersen
2015, 2021, 2015-06-19
eBook
Open access
The articles in this volume present contemporary and original research on linguistic meaning, concept formation and conceptual analysis. A central theme across the articles is the question of how ...concepts are structured, how they are represented in the mind, and how they are expressed in language. Two introductory papers on concept types and frames set out the crucial role of attributes and frames for the representation of concepts. The topics of the contributions range from the interrelation between determination and reference of nominal expressions, the verbal and adjectival expression of attributes, and the analysis of metonymy to the frame-based representation of action-related concepts and the classification of mental disorders in psychiatry. The collection of articles provided by this volume will be of interest to researchers and advanced students in the fields of semantics, pragmatics, philosophy of mind, and the cognitive sciences.
•A novel framework is proposed for anomaly detection in videos.•The innovation lies in the combination of prediction and reconstruction methods.•This work is more robust to noise and suitable for ...real-world surveillance videos.•This work outperforms both prediction (baseline) and reconstruction approaches.
Anomaly detection in videos refers to identifying events that rarely or shouldn’t happen in a certain context. Among all existing methods, the idea of reconstruction or future frame prediction is predominant for detecting anomalies. Reconstruction methods try to minimize the reconstruction errors of training data, but cannot guarantee large reconstruction errors for abnormal events. Future frame prediction methods follow the concept that normal events are predictable while abnormal ones are unpredictable. However, the results may drop rapidly since prediction is not robust to the noise in real-world surveillance videos. In this paper, we propose an approach that combines the advantages and balances the disadvantages of these two methods. An end-to-end network is designed to conduct future frame prediction and reconstruction sequentially. Future frame prediction makes the reconstruction errors large enough to facilitate the identification of abnormal events, while reconstruction helps enhance the predicted future frames from normal events. Specifically, we connect two U-Net blocks in the generator. One block works in the form of frame prediction, and the other tries to reconstruct the frames generated by the former block. Experiments over several benchmark datasets demonstrate the superiority of our method over previous state-of-the-art approaches, while running in real-time at 30 frames per second.
G-phase retrievable frames Jafarizadeh, Maryam; Hasankhani Fard, Mohammad Ali
Numerical functional analysis and optimization,
1/25/2024, Volume:
45, Issue:
2
Journal Article
Peer reviewed
In this paper we introduce generalized phase retrievable frames or simply g-phase retrievable frames in real or complex n-dimensional Hilbert space
H
n
, which include ordinary phase retrievable ...frames in
H
n
. Specifically, a g-phase retrievable frame is a λ-phase retrievable frame, where λ is an special function, which is called phase coefficient function. Using the λ-phase retrievable frames, every vector in
H
n
can be reconstructed up to a constant phase coefficient factor from the action of λ on the its frame coefficients, which can be bounded for bounded phase coefficient functions. We obtain some equivalent conditions to g-phase retrievable frames and we study on stability of special g-phase retrievable frames under small perturbation of their vectors and under small perturbation of their phase coefficient functions.
The eukaryotic 5' untranslated region (UTR) is critical for ribosome recruitment to the messenger RNA (mRNA) and start codon choice and plays a major role in the control of translation efficiency and ...shaping the cellular proteome. The ribosomal initiation complex is assembled on the mRNA via a cap-dependent or cap-independent mechanism. We describe various mechanisms controlling ribosome scanning and initiation codon selection by 5' upstream open reading frames, translation initiation factors, and primary and secondary structures of the 5'UTR, including particular sequence motifs. We also discuss translational control via phosphorylation of eukaryotic initiation factor 2, which is implicated in learning and memory, neurodegenerative diseases, and cancer.
La teoría del framing, traducida al castellano como teoría del encuadre o de los marcos, ha experimentado una rápida evolución desde mediados de los años sesenta, donde encuentra sus orígenes en el ...campo de la sociología, hasta la actualidad. El framing se ha convertido en un paradigma multidisciplinario que permite abordar globalmente el estudio de los efectos de los medios de comunicación sobre los individuos y los públicos. Lejos de situarse exclusivamente en los emisores de información, el encuadre está localizado en cuatro elementos del proceso de comunicación: el emisor, el receptor, el texto (informativo) y la cultura. El presente artículo, bajo la forma de revisión de la literatura, realiza un recorrido por la teoría desde sus antecedentes en los años cincuenta hasta la actualidad, describiendo además el desarrollo de la investigación sobre framing en España y su estado actual.
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