Interpreting Models of Social Group Interactions in Meetings with Probabilistic Model Checking

A major challenge in Computational Social Science consists in modelling and explaining the temporal dynamics of human communication. Understanding small group interactions can help shed light on sociological and social psychological questions relating to human communications. Previous work showed how Markov rewards models can be used to analyse group interaction in meeting. We explore further the potential of these models by formulating queries over interaction as probabilistic temporal logic properties and analysing them with probabilistic model checking. For this study, we analyse a dataset taken from a standard corpus of scenario and non-scenario meetings and demonstrate the expressiveness of our approach to validate expected interactions and identify patterns of interest

Mixture-of-Linguistic-Experts Adapters for Improving and Interpreting Pre-trained Language Models

In this work, we propose a method that combines two popular research areas by injecting linguistic structures into pre-trained language models in the parameter-efficient fine-tuning (PEFT) setting. In our approach, parallel adapter modules encoding different linguistic structures are combined using a novel Mixture-of-Linguistic-Experts architecture, where Gumbel-Softmax gates are used to determine the importance of these modules at each layer of the model. To reduce the number of parameters, we first train the model for a fixed small number of steps before pruning the experts based on their importance scores. Our experiment results with three different pre-trained models show that our approach can outperform state-of-the-art PEFT methods with a comparable number of parameters. In addition, we provide additional analysis to examine the experts selected by each model at each layer to provide insights for future studies.Comment: 14 pages, 3 figures, Camera-Ready for EMNLP 2023 Findings (Long Paper

No Oil for the Lamps of China?

Chinese naval and strategic planners fear, and their Western counterparts seem to believe, that a maritime blockade could interrupt or significantly impede China’s energy supplies in a limited war. But probably it could not, and thinking it could is dangerous for everyone

Chinese Evaluations of the U.S. Navy Submarine Force

The U.S. Navy submarine force has set the standard in undersea warfare for at least half a century. America’s submarines made a vital contribution to victory in the Second World War, and they formed an elite force of truly innovative capabilities during the “cold war at sea” with the Soviet Navy. Since the end of the Cold War, the submarine force has been a leader among U.S. military warfighting communities in transforming itself to remain relevant against mili- tant Islamist extremism and other emerging threats

Lesson Study and Teacher\u27s Dialogue About SMP 5

The purpose of this paper is to share research on the dialogue of teachers related to the Standard for Mathematical Practice 5 during the post-lesson debrief of Lesson Study. Lesson Study debriefs were recorded and transcribed for teacher teams conducting Lesson Study to improve students\u27 mathematical problem solving. Inductive analysis was used to find similarities and differences between teacher dialogues about the SMPs. Conclusions and implications about teachers\u27 dialogue are shared

X-ray He-like ions diagnostics: New Computations for Photoionized Plasmas: I. preliminary considerations

Using the new version of the photoionization code Titan designed for plane-parallel photoionized thick hot media, which is unprecedented from the point of view of line transfer, we have undertaken a study of the influence of different parameters on the He-like and H-like emission of a medium photoionized by an X-ray source. We explain why in modelling the emitting medium it is important to solve in a self-consistent way the thermal and ionization equilibria and to take into account the interconnection between the different ions. We give the equivalent widths of the sum of the He-like triplets and the triplet intensity ratios $G$ and $R$, for the most important He-like ions, for a range of density, column density, and ionization parameter, in the case of constant density media. We show that the line intensities from a given ion can be accounted for, either by small values of both the column density and of the ionization parameter, or by large values of both quantities, and it is necessary to take into account several ions to disentangle these possibilities. We show also that a "pure recombination spectrum" almost never exists in a photoionized medium: either it is thin, and resonance lines are formed by radiative excitation, or it is thick, and free-bound absorption destroys the resonance photons as they undergo resonant diffusion.Comment: 19 pages, 14 figures, accepted in A &

Term-weighting for summarization of multi-party spoken dialogues

This paper explores the issue of term-weighting in the genre of spontaneous, multi-party spoken dialogues, with the intent of using such term-weights in the creation of extractive meeting summaries. The field of text information retrieval has yielded many term-weighting techniques to import for our purposes; this paper implements and compares several of these, namely tf.idf, Residual IDF and Gain. We propose that term-weighting for multi-party dialogues can exploit patterns in word us- age among participant speakers, and introduce the su.idf metric as one attempt to do so. Results for all metrics are reported on both manual and automatic speech recognition (ASR) transcripts, and on both the ICSI and AMI meeting corpora