Research

Publications

Peer-reviewed work across computer vision, social networks, programming languages, and competitive learning — 637+ citations on Google Scholar. Book-length work is collected separately under Books.

Research Spectrum

9 peer-reviewed works · 2010–2026

Peer-Reviewed Publications

9 papers

Research Pipeline

Status checked September 7, 2026
Submitted · 2026

Cascade Centrality on Undirected Unweighted Graphs: Exact Hardness and Efficient Approximation

Josh Alman & Christian Yongwhan Lim · Submitted to ITCS 2027

Exact complexity, approximation, and a reproducible computation layer. Submission details are public; active review correspondence remains private.

In preparation

Structural Laws for Cascade Centrality

JCN track

With Josh Alman · Updated September 6, 2026

Cycles, graph covers, decomposition laws, and related structural results.

In preparation

Nonmonotone Network Augmentation under Influence Dilution

MOR track

With Josh Alman · Updated September 6, 2026

When adding an edge can reduce a network objective, with explicit counterexamples and asymptotic analysis.

Research note

The Six Order Extremes of Cascade Centrality

Mixed status

With Josh Alman · Updated September 6, 2026

Proved bounds, exact family calculations, exhaustive small-order evidence, and three explicitly labeled open extremal principles.

In preparation

From Presentations to Practice: Evaluating Contest-Centered Instruction in Competitive Programming Education

With Josh Alman · Complete manuscript · preparing submission venue

In preparation

Automated Problem Package Generation for Kattis Using Large Language Models

With Ann Lee · AI-assisted contest archiving and problem-package tooling

In preparation

From Contest Results to Community Experience: A Multi-Site Qualitative Protocol

With Carolyn Su · Protocol and submission package prepared September 2026

In preparation

A Chief Judge’s Guidance Handbook: Best Practices for ICPC Regional Contest Administration

Contest judging and regional administration

In preparation

Beyond Algorithms: Coaching ICPC Teams for Excellence Through Collaboration, Strategy, and Sustainable Practice

Team coaching and sustainable practice

Ongoing

ICPC Curriculum Committee

Further joint work among ICPC Curriculum Committee members.