Kenneth Kwok


2026

Cognitive metaphors provide a lens for understanding how societies construct and negotiate ideas, including liberty discourse. This study explores conceptual metaphors in liberty discourse by applying a scalable, corpus-driven approach for cognitive analysis. A curated list of thematic keywords related to liberty topics is used to extract relevant sentences from the Corpus of Historical American English (COHA) and the News on the Web (NOW) corpus. MetaPro, a framework grounded in Conceptual Metaphor Theory, processes these sentences to identify metaphorical mappings at scale. Embedding visualizations and frequency counts were applied to both corpora; in COHA, line graphs captured temporal shifts in metaphor usage across time, while in NOW, two-dimensional heatmaps highlighted spatial variation across countries. Selected example phrases illustrate how metaphorical mappings extend across diverse issues and domains. Thus, metaphor distributions and shifts provide a useful empirical lens for identifying changing thematic concerns in liberty discourse, offering a scalable, cognitively grounded method for cultural analysis across time and space. This demonstrates the value of computational methods for large-scale culture research.

2025

Foundation models (FMs) are increasingly applied to bridge language and action in embodied agents, yet the operational characteristics of different integration strategies remain under-explored—especially for complex instruction following and versatile action generation in changing environments. We investigate three paradigms for robotic systems: end-to-end vision-language-action models (VLAs) that implicitly unify perception and planning, and modular pipelines using either vision-language models (VLMs) or multimodal large language models (MLLMs). Two case studies frame the comparison: instruction grounding, which probs fine-grained language understanding and cross-modal disambiguation; and object manipulation, which targets skill transfer via VLA finetuning. Our experiments reveal trade-offs in system scale, generalization and data efficiency. These findings indicate design lessons for language-driven physical agents and point to challenges and opportunities for FM-powered robotics in real-world conditions.

2022

In recent years, AI research has demonstrated enormous potential for the benefit of humanity and society. While often better than its human counterparts in classification and pattern recognition tasks, however, AI still struggles with complex tasks that require commonsense reasoning such as natural language understanding. In this context, the key limitations of current AI models are: dependency, reproducibility, trustworthiness, interpretability, and explainability. In this work, we propose a commonsense-based neurosymbolic framework that aims to overcome these issues in the context of sentiment analysis. In particular, we employ unsupervised and reproducible subsymbolic techniques such as auto-regressive language models and kernel methods to build trustworthy symbolic representations that convert natural language to a sort of protolanguage and, hence, extract polarity from text in a completely interpretable and explainable manner.

2019

We propose a new neural transfer method termed Dual Adversarial Transfer Network (DATNet) for addressing low-resource Named Entity Recognition (NER). Specifically, two variants of DATNet, i.e., DATNet-F and DATNet-P, are investigated to explore effective feature fusion between high and low resource. To address the noisy and imbalanced training data, we propose a novel Generalized Resource-Adversarial Discriminator (GRAD). Additionally, adversarial training is adopted to boost model generalization. In experiments, we examine the effects of different components in DATNet across domains and languages and show that significant improvement can be obtained especially for low-resource data, without augmenting any additional hand-crafted features and pre-trained language model.
Natural language communication between machines and humans are still constrained. The article addresses a gap in natural language understanding about actions, specifically that of understanding commands. We propose a new method for commonsense inference (grounding) of high-level natural language commands into specific action commands for further execution by a robotic system. The method allows to build a knowledge base that consists of a large set of commonsense inferences. The preliminary results have been presented.