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Multimodal Vision-Language Models (VLMs) enable powerful applications from their fused understanding of images and language, but many perform poorly on UI tasks due to the lack of UI training data. In this paper, we adapt a recipe for…

Human-Computer Interaction · Computer Science 2023-10-10 Yue Jiang , Eldon Schoop , Amanda Swearngin , Jeffrey Nichols

We present a type checking algorithm for establishing a session-based discipline in the pi calculus of Milner, Parrow and Walker. Our session types are qualified as linear or unrestricted. Linearly typed communication channels are…

Programming Languages · Computer Science 2011-08-12 Marco Giunti

Multiparty session types (MST) are a well-established type theory that describes the interactive structure of a fixed number of components from a global point of view and type-checks the components through projection of the global type onto…

Programming Languages · Computer Science 2019-02-05 Andi Bejleri , Elton Domnori , Malte Viering , Patrick Eugster , Mira Mezini

Up to now session types have been used under the assumptions of point to point communication, to ensure the linearity of session endpoints, and reliable communication, to ensure send/receive duality. In this paper we define a session type…

Programming Languages · Computer Science 2014-06-16 Dimitrios Kouzapas , Ramūnas Gutkovas , Simon J. Gay

We explore the integration of metaprogramming in a call-by-value linear lambda-calculus and sketch its extension to a session type system. We build on a model of contextual modal type theory with multi-level contexts, where contextual…

Logic in Computer Science · Computer Science 2024-04-09 Pedro Ângelo , Atsushi Igarashi , Vasco T. Vasconcelos

The fast growth of service-oriented programming (SOP) is evident in this day and age of the Internet, and handling communication is of paramount importance in SOP. Session types are a formalism that is proposed to specify interactions…

Programming Languages · Computer Science 2018-10-30 Hanwen Wu , Hongwei Xi

We present TLLC which extends the Two-Level Linear dependent type theory (TLL) with session-based concurrency. Equipped with Martin-L\"{o}f style dependency, the session types of TLLC allow protocols to specify properties of communicated…

Programming Languages · Computer Science 2025-10-27 Qiancheng Fu , Hongwei Xi , Ankush Das

This work proposes a dependent type theory that combines functions and session-typed processes (with value dependencies) through a contextual monad, internalising typed processes in a dependently-typed lambda-calculus. The proposed…

Programming Languages · Computer Science 2018-01-25 Bernardo Toninho , Nobuko Yoshida

Behavioural types provide a promising way to achieve lightweight, language-integrated verification for communication-centric software. However, a large barrier to the adoption of behavioural types is that the current state of the art…

Programming Languages · Computer Science 2024-04-09 Simon Fowler , Philipp Haller , Roland Kuhn , Sam Lindley , Alceste Scalas , Vasco T. Vasconcelos

Programs are more distributed and concurrent today than ever before, and structural communications are at the core. Constructing and debugging such programs are hard due to the lack of formal specification/verification of concurrency. This…

Programming Languages · Computer Science 2018-08-02 Hanwen Wu , Hongwei Xi

\emph{Session types} have proved viable in expressing and verifying the protocols of message-passing systems. While message passing is a dominant concurrency paradigm in practice, real world software is written without session types. A…

Programming Languages · Computer Science 2022-06-01 Ruo Fei Chen , Stephanie Balzer , Bernardo Toninho

Generating natural and meaningful responses to communicate with multi-modal human inputs is a fundamental capability of Large Vision-Language Models(LVLMs). While current open-source LVLMs demonstrate promising performance in simplified…

Computer Vision and Pattern Recognition · Computer Science 2024-10-30 Ziyu Liu , Tao Chu , Yuhang Zang , Xilin Wei , Xiaoyi Dong , Pan Zhang , Zijian Liang , Yuanjun Xiong , Yu Qiao , Dahua Lin , Jiaqi Wang

Session types describe the structure of communications implemented by channels. In particular, they prescribe the sequence of communications, whether they are input or output actions, and the type of value exchanged. Crucial to any language…

Logic in Computer Science · Computer Science 2023-06-22 Dimitris Mostrous , Vasco T. Vasconcelos

Creating Computer-Aided Design (CAD) models requires significant expertise and effort. Text-to-CAD, which converts textual descriptions into CAD parametric sequences, is crucial in streamlining this process. Recent studies have utilized…

Computer Vision and Pattern Recognition · Computer Science 2025-06-06 Ruiyu Wang , Yu Yuan , Shizhao Sun , Jiang Bian

We propose the integration of staged metaprogramming into a session-typed message passing functional language. We build on a model of contextual modal type theory with multi-level contexts, where contextual values, closing arbitrary terms…

Programming Languages · Computer Science 2026-01-22 Pedro Ângelo , Atsushi Igarashi , Yuito Murase , Vasco T. Vasconcelos

Session types model structured communication-based programming. In particular, binary session types for the pi-calculus describe communication between exactly two participants in a distributed scenario. Adding sessions to the pi-calculus…

Programming Languages · Computer Science 2014-08-27 Ornela Dardha

Multimodal Large Language Model (MLLM)-based Graphical User Interface (GUI) agents develop rapidly, with visual grounding that maps natural language instructions to target UI elements serving as the core capability. Existing GUI agents…

Machine Learning · Computer Science 2026-03-17 Ziwei Liu , Tao Feng , Borui Kang , Yanbing Yang , Jun Luo

Session types are a type-based approach to the verification of message-passing programs. They specify communication structures essential to enforcing program correctness; by relying on sequencing constructs, a session type can precisely…

Programming Languages · Computer Science 2025-05-14 Alen Arslanagić , Jorge A. Pérez , Dan Frumin

Session types provide guarantees about concurrent behaviour and can be understood through their correspondence with linear logic, with propositions as sessions and proofs as processes. However, a strictly linear setting is somewhat…

Programming Languages · Computer Science 2024-10-23 Danielle Marshall , Dominic Orchard

Multimodal large language models (MLLMs) have emerged as pivotal tools in enhancing human-computer interaction. In this paper we focus on the application of MLLMs in the field of graphical user interface (GUI) elements structuring, where…

Computer Vision and Pattern Recognition · Computer Science 2025-09-03 Yi Xu , Yesheng Zhang , Jiajia Liu , Jingdong Chen