scholarly journals The Oldest Translation of the Almagest Made for al-Maʾmūn by al-Ḥasan ibn Quraysh: A Text Fragment in Ibn al-Ṣalāḥ’s Critique on al-Fārābī’s Commentary

2020 ◽  
pp. 117-138
Author(s):  
Johannes Thomann
Keyword(s):  
Text Fragment

scholarly journals Thinking Globally, Acting Locally: Distantly Supervised Global-to-Local Knowledge Selection for Background Based Conversation

2020 ◽  
Vol 34 (05) ◽  
pp. 8697-8704
Author(s):  
Pengjie Ren ◽  
Zhumin Chen ◽  
Christof Monz ◽  
Jun Ma ◽  
Maarten De Rijke
Keyword(s):  
Local Knowledge ◽  
State Of The Art ◽  
Background Knowledge ◽  
Global Perspective ◽  
Conversational Context ◽  
Human Evaluation ◽  
Text Fragment ◽  
Selection For ◽  
High Degree ◽  
Transition Vector

Background Based Conversation (BBCs) have been introduced to help conversational systems avoid generating overly generic responses. In a BBC, the conversation is grounded in a knowledge source. A key challenge in BBCs is Knowledge Selection (KS): given a conversational context, try to find the appropriate background knowledge (a text fragment containing related facts or comments, etc.) based on which to generate the next response. Previous work addresses KS by employing attention and/or pointer mechanisms. These mechanisms use a local perspective, i.e., they select a token at a time based solely on the current decoding state. We argue for the adoption of a global perspective, i.e., pre-selecting some text fragments from the background knowledge that could help determine the topic of the next response. We enhance KS in BBCs by introducing a Global-to-Local Knowledge Selection (GLKS) mechanism. Given a conversational context and background knowledge, we first learn a topic transition vector to encode the most likely text fragments to be used in the next response, which is then used to guide the local KS at each decoding timestamp. In order to effectively learn the topic transition vector, we propose a distantly supervised learning schema. Experimental results show that the GLKS model significantly outperforms state-of-the-art methods in terms of both automatic and human evaluation. More importantly, GLKS achieves this without requiring any extra annotations, which demonstrates its high degree of scalability.

scholarly journals Metaphor as a Basic Component of the Emotional Space of Texts

2021 ◽  
pp. 96-111
Author(s):  
Marina Shatskikh ◽  
Keyword(s):  
Word Order ◽  
Expressive Language ◽  
Basic Component ◽  
Emotional Speech ◽  
Context Analysis ◽  
Text Fragment ◽  
Emotional Aspects ◽  
Theory Of Language ◽  
Work Done ◽  
Descriptive Method

The article discusses the emotional space of a text fragment and ways of its verbalization. Emotions play a huge role in politics and ideology, since it is in this area that emotions and feelings of the modern generation can and should most clearly manifest themselves, in regard to both what is happening now and what awaits humanity in the future. The main purpose of the article is to identify the features of metaphorical representation of reality. Using the descriptive method as well as the methods of classification and context analysis and leaning on the work done by P. K. Anokhin, Y. Reykovsky, V. I. Shakhovsky and others, the author analyzes mechanisms and patterns of the metaphor at the intersection of the linguistic and emotional aspects and presents it as the most expressive language means. Among features of emotional speech specific for newswriting there are such patterns as changes in the architectonic structure of utterances, various repetitions, elliptical constructions, interjections and filler words, distortion of word order, violation of semantic integrity, various kinds of syntactic constructions with quoted speech, etc. However, the main indicators of emotionality in written texts are words that represent ey characteristics of the writer’s emotional attitude to her subject matter, and metaphors remain the primary tool that reflect the writer’s perception of and emotions towards what she describes. The article presents possible groups of sensory metaphors and thus provides additional theoretical and practical material for courses in the theory of language, linguistic analysis of the text, and lexicology.

scholarly journals PAKARTOJIMAS IR NIHILIZMAS

Problemos ◽  
2013 ◽  
Vol 84 ◽  
pp. 46-59
Author(s):  
Rita Šerpytytė
Keyword(s):  
Theoretical Models ◽  
The Other ◽  
Philosophical Tradition ◽  
Western Tradition ◽  
Other Hand ◽  
Text Fragment ◽  
Western Philosophical Tradition ◽  
Universal Structure ◽  
The One

Straipsnio tikslas yra atskleisti Vakarų filosofijos tradicijoje savitai įsitvirtinusios patyrimo struktūros, įvardijamos pakartojimu, nihilistinę prasmę. Šioje hermeneutinėje analizėje, viena vertus, re­miamasi tam tikra nihilizmo samprata, numatančia du nihilizmo teorinius modelius – nihilizmą, parem­tą Überwindung teorija, ir nihilizmą, paremtą différance idėja. Kita vertus, remiamasi tam tikru („onto-teologiniu“) pretekstu Vakarų mąstymo tradicijoje atpažįstant pakartojimo struktūrą – Pauliaus Laiško efeziečiams Ef. I, 10 teksto fragmentu, laikomu paradigmine pakartojimo struktūros išsklaida. Herme­neutinė analizė projektuojama į Kierkegaardo ir Agambeno filosofiją, atskirus jų mąstyme atpažįstamus pakartojimo invariantus atskleidžiant kaip minėto Pauliaus Laiško fragmento eksplozijos atvejus. Ke­liamas klausimas, kas yra pakartojimas, kur slypi jo negatyvumas ir kaip pasirodo jo nihilistinė prasmė? Kaip šioje negatyvumo ir nihilizmo atskleistyje „tarpininkauja“ différance? Straipsnyje parodoma, jog skirtis kaip neigimo judesys, atstovaujantis nihilistinei logikai, gali būti traktuojamas ir vien formaliai, ir realiai. Skirties kaip realaus neigimo traktavimas Kierkegaardo ir Agambeno mąstyme atitinka pačios patirties struktūros – pakartojimo – ontologinį (tikrovišką) įšaknytumą.Pagrindiniai žodžiai: pakartojimas, nihilizmas, différance, negatyvumas, laikasPakartojimas ir nihilizmasRita Šerpytytė   AbstractThe purpose of this article is to reveal the nihilistic sense of an experiential structure, which has been distinctively rooted in Western philosophical tradition. On the one hand, this hermeneutical analysis will be based on a certain conception of nihilism presupposing two theoretical models of nihilism – nihilism, which refers to the theory of Überwindung, and nihilism associated with the idea of différance. On the other hand, it builds upon a certain (the so-called “onto-theological”) pretext, which might be used for recognition of the structure of repetition in Western tradition of thinking, – i.e. the fragment of a text from St. Paul’s Letter to the Ephesians Eph. I, 10 – the paradigmatic passage proposing this universal structure of repetition. Focused both on philosophy of Kierkegaard and Agamben, hermeneutical analysis will aim to disclose the separate invariants of such repetition as cases of explosion of the mentioned text fragment. The question is raised – what is repetition? Where does its negativity lie? How does its nihilistic sense appear? How does the différance mediate in this process of revealing of negativity and nihilism? The article argues that difference, as a motion of negation representing nihilistic logic, can be treated both in merely formal and in a realistic way. The treating of différance as real denying in Kierkegaard’s and Agamben’s thinking corresponds to the ontological rootedness of the very structure of experience – repetition.Keywords: repetition, nihilism, différance, negativity, time

An Acquisition Model of Deep Textual Semantics Based on Human Reading Cognitive Process

2012 ◽  
Vol 6 (2) ◽  
pp. 82-103 ◽  
Author(s):  
Jun Zhang ◽  
Xiangfeng Luo ◽  
Lei Lu ◽  
Weidong Liu
Keyword(s):  
Cognitive Process ◽  
Domain Knowledge ◽  
Web Search ◽  
Long Term Memory ◽  
Activation Process ◽  
Semantic Field ◽  
Text Understanding ◽  
Text Fragment ◽  
E Learning ◽  
Text Reading

The acquisition of deep textual semantics is a key issue which significantly improves the performances of e-learning, web search and web knowledge services, etc. Though many models have been developed to acquire textual semantics, the acquisition of deep textual semantics is still a challenge issue. Herein, an acquisition model of deep textual semantics is developed to enhance the capability of text understanding, which includes two parts: 1) how to obtain and organize the domain knowledge extracted from text set and 2) how to activate the domain knowledge for obtaining the deep textual semantics. The activation process involves the Gough mode reading theory, Landscape model and memory cognitive process. The Gough mode is the main human reading model that enables the authors to acquire deep semantics in a text reading process. Generalized semantic field is proposed to store the domain knowledge in the form of Long Term Memory (LTM). Specialized semantic field, which is acquired by the interaction process between the text fragment and the domain knowledge, is introduced to describe the change process of textual semantics. By their mutual actions, the authors can get the deep textual semantics which enhances the capability of text understanding; therefore, the machine can understand the text more precisely and correctly than those models only obtaining surface textual semantics.

Profile Genesis Apocyrphon Abram Part-Text (Fragment)

2011 ◽  
Vol 9 (1) ◽  
pp. 191-198
Author(s):  
Rocco Bernasconi
Keyword(s):  
Text Fragment

A theoretical study on the activation of hydrogen–hydrogen and hydrogen–alkyl bonds by electron-poor early transition metals

1992 ◽  
Vol 70 (2) ◽  
pp. 333-342 ◽  
Author(s):  
E. Folga ◽  
T. Ziegler
Keyword(s):  
Density Functional Theory ◽  
Transition State ◽  
Density Functional ◽  
Hydrogen Exchange ◽  
Theoretical Study ◽  
Experimental Studies ◽  
Functional Theory ◽  
Exchange Processes ◽  
Text Fragment ◽  
Metathesis Reactions

A theoretical study has been carried out on four σ-bond metathesis reactions mediated by the electron-poor lutetium metal centre. The four processes include hydrogen exchange, X2Lu-H + D2 → X2Lu-D + HD (1), and hydrogenolysis X2Lu-CH3 + H2 → Cl2Lu-H + CH4 (2), in which a H—H bond is activated, as well as methane exchange, X2Lu-CH3 + CH4 → X2Lu-CH3 + CH4 (3), and methylation, Cl2Lu-H + CH4 → X2Lu-CH3 + H2 (4), in which a C—H bond is activated. The [Formula: see text] fragment employed in a number of experimental studies was modelled by Cl2Lu and all calculations were based on approximate Density Functional Theory (DFT). The study combined methods from quantum mechanics and statistical mechanics to obtain enthalpies and entropies of activation as well as transition state structures. All four processes were found to have an ordered four-centre transition state with negative entropies of activation given by ΔS≠ = −109(1), −124(2), −131 (3), and −134(4)&nbspJ mol−1 K−1 at T = 298.15 K. The Gibb's free energies of activation, ΔG≠(= ΔH≠ − TΔS≠) were calculated as ΔG≠ = 81.6 (1), 126.0 (2), 136.7 (3), and 130.6 (4) kJ mol−1 at T = 298.15 K. The calculated trends in ΔG≠ are consistent with the observed order of reactivity for σ-bond metathesis reactions between R—H and M—R′ bonds: R = R′ = H >> R = H, R′ = CH3 > R = R′ = CH3. The decrease in the reaction rate is related to the different abilities of the 1s hydrogen orbital and the [Formula: see text] methyl orbital to stabilize the four-centre transition state. Thus, the spherical 1s hydrogen orbital is better able to overlap fully with orbitals on adjacent centres than the directional [Formula: see text] orbital. As a consequence, the electronic barrier is seen to increase from the hydrogen exchange reaction towards the hydrogenolysis and methane exchange processes as one or two hydrogens, respectively, are replaced by methyl groups in the four-centre transition state. Keywords: Density Functional Theory, C—H activation, metathesis, hydrogenolysis, H—H activation.

SUPER-ASYMMETRIC COLD FISSION AND EXOTIC CLUSTER-DECAY

1994 ◽  
Vol 03 (01) ◽  
pp. 195-218 ◽  
Author(s):  
SATISH KUMAR ◽  
RAJ K. GUPTA ◽  
WERNER SCHEID
Keyword(s):  
Experimental Data ◽  
Mass Region ◽  
Cluster Decay ◽  
Model Calculations ◽  
Decay Modes ◽  
Cluster Radioactivity ◽  
Decay Products ◽  
Text Fragment ◽  
Mechanical Fragmentation ◽  
Cold Fission

Cold fission of radioactive nuclei is studied in the super-asymmetric mass region of exotic cluster radioactivity, using the quantum-mechanical fragmentation theory (QMFT) based saddle-point fission (SPF) model for calculating the decay half-life times. The calculations show that cold fission also prefers light fragments like 24–26Ne, 28,30Mg, 32,34,36Si, 37P 38S, 46Ar and 48,50Ca, some of which are observed in exotic cluster radioactivity. The predictions of the SPF model calculations are compared with the available exotic cluster-decay experimental data and the calculations based on the preformed-cluster model (PCM). The SPF model calculations show large disagreements with both the PCM and cluster-decay experimental data. For clusters of mass A2<46, the predicted half-lives for the SPF model are much smaller than for the PCM, which apparently means predicting the cold fission as a more probable process than the cluster-decay. The cold fission predicts some new decay modes which are far more probable (smaller log10 T1/2-values) as cold fission fragments than as cluster-decay products. For heavier clusters (A2≥46), the two models (SPF and PCM) make nearly identical predictions, which means predicting an overlap of two processes (cold fission and cluster-decay) for A2>46. Also, cold fission is found to be more probable than hot fission and a new fission mode (known as bimodel fission) is identified in the neighbourhood of the doubly magic [Formula: see text] fragment. Our calculations are made for 234U, 238Pu, 241Am and 252Cf.

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