https://bampel.com/tag/multi-task-learning/Multi-Task LearningWowchemy (https://wowchemy.com)en-usWed, 05 Aug 2026 00:00:00 +0000https://bampel.com/media/icon_hu_cc9cb5646de94589.pnghttps://bampel.com/tag/multi-task-learning/https://bampel.com/journal_publication/phi-hacker-jmis/Wed, 05 Aug 2026 00:00:00 +0000https://bampel.com/journal_publication/phi-hacker-jmis/ <div class="pub-extras"> <div class="pub-plain" role="note" aria-label="Plain-language summary"> <span class="pub-plain-tag">In Plain Terms</span> <p>Stolen medical records are increasingly bought and sold in encrypted chat groups on platforms like Telegram and Discord, buried in huge amounts of unrelated chatter. This paper introduces PHI-NEXT, a system that automatically finds those posts, pulls out what kind of health information is being traded, and tracks how the activity changes over time. It outperforms existing detection methods and gives security teams and regulators a practical way to monitor this underground market at scale.</p> </div> <div class="pub-extras-grid"> <div class="pub-extras-card"> <h3>Key Contributions</h3> <p class="pub-muted">Key contributions will be added soon.</p> </div> <div class="pub-extras-card"> <h3>Artifacts</h3> <p class="pub-muted">No artifacts listed yet.</p> </div> <div class="pub-extras-card"> <h3>Related Papers</h3> <ul class="pub-related"> <li> <a href="https://bampel.com/conference_publication/phi-hacker-hicss-2026/">Automatic Extraction of Protected Health Information from Multilingual Hacker Communities</a> <span>2026 · HICSS</span> </li> <li> <a href="https://bampel.com/conference_publication/dtlel-isi/">Labeling Hacker Exploits for Proactive Cyber Threat Intelligence: A Deep Transfer Learning Approach</a> <span>2020 · IEEE ISI</span> </li> <li> <a href="https://bampel.com/journal_publication/dtl-el-misq/">Creating Proactive Cyber Threat Intelligence with Hacker Exploit Labels: A Deep Transfer Learning Approach</a> <span>2024 · MIS Quarterly</span> </li> </ul> </div> <div class="pub-extras-card"> <h3>Citation</h3> <div class="pub-citation"> <div class="pub-citation-text">Cade Dacosta, Benjamin M. Ampel, Matthew Hashim, &amp; Hsinchun Chen (2026). Identifying Protected Health Information in Online Hacker Communities: A Multi-Task Relation Learning Approach. *Journal of Management Information Systems (JMIS)*, Forthcoming</div> <div class="pub-citation-actions"> <button class="pub-copy" type="button" data-copy-text="Cade&#43;Dacosta%2C&#43;Benjamin&#43;M.&#43;Ampel%2C&#43;Matthew&#43;Hashim%2C&#43;%26&#43;Hsinchun&#43;Chen&#43;%282026%29.&#43;Identifying&#43;Protected&#43;Health&#43;Information&#43;in&#43;Online&#43;Hacker&#43;Communities%3A&#43;A&#43;Multi-Task&#43;Relation&#43;Learning&#43;Approach.&#43;%2AJournal&#43;of&#43;Management&#43;Information&#43;Systems&#43;%28JMIS%29%2A%2C&#43;Forthcoming" data-copy-label="APA">Copy APA</button> <button class="pub-copy" type="button" data-copy-text="Cade&#43;Dacosta%2C&#43;Benjamin&#43;M.&#43;Ampel%2C&#43;Matthew&#43;Hashim%2C&#43;and&#43;Hsinchun&#43;Chen.&#43;2026.&#43;%22Identifying&#43;Protected&#43;Health&#43;Information&#43;in&#43;Online&#43;Hacker&#43;Communities%3A&#43;A&#43;Multi-Task&#43;Relation&#43;Learning&#43;Approach.%22&#43;%2AJournal&#43;of&#43;Management&#43;Information&#43;Systems&#43;%28JMIS%29%2A%2C&#43;Forthcoming" data-copy-label="Chicago">Copy Chicago</button> <button class="pub-copy" type="button" data-copy-text="%40article%7Bacosta2026identifying%2C%0A&#43;&#43;title%3D%7BIdentifying&#43;Protected&#43;Health&#43;Information&#43;in&#43;Online&#43;Hacker&#43;Communities%3A&#43;A&#43;Multi-Task&#43;Relation&#43;Learning&#43;Approach%7D%2C%0A&#43;&#43;author%3D%7BCade&#43;Dacosta&#43;and&#43;Benjamin&#43;M.&#43;Ampel&#43;and&#43;Matthew&#43;Hashim&#43;and&#43;Hsinchun&#43;Chen%7D%2C%0A&#43;&#43;journal%3D%7B%2AJournal&#43;of&#43;Management&#43;Information&#43;Systems&#43;%28JMIS%29%2A%2C&#43;Forthcoming%7D%2C%0A&#43;&#43;year%3D%7B2026%7D%0A%7D" data-copy-label="BibTeX">Copy BibTeX</button> </div> </div> </div> </div> </div> <style> .pub-extras { margin-top: 2rem; } .pub-plain { position:relative; border:1px solid rgba(0,229,255,0.35); border-left:4px solid var(--clr-cyan, #00e5ff); border-radius:14px; padding:16px 18px 14px; margin-bottom:18px; background:linear-gradient(180deg, rgba(0,229,255,0.10), rgba(0,229,255,0.04)); } .pub-plain-tag { display:inline-block; font-size:0.66rem; font-weight:700; text-transform:uppercase; letter-spacing:0.12em; color:var(--clr-cyan, #00e5ff); margin-bottom:6px; } .pub-plain p { margin:0; font-size:0.95rem; line-height:1.55; color:var(--text, #c9d1d9); } body:not(.dark) .pub-plain { background:rgba(0,150,180,0.06); border-color:rgba(0,120,150,0.35); } body:not(.dark) .pub-plain-tag { color:#0b6b80; } body:not(.dark) .pub-plain p { color:#1a2a33; } .pub-extras-grid { display:grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap:16px; } .pub-extras-card { border:1px solid var(--card-border, #333); border-radius:14px; padding:16px; background:var(--card-bg, rgba(0,0,0,0.25)); box-shadow:0 8px 20px rgba(0,0,0,0.12); } .pub-extras-card h3 { margin:0 0 10px; font-size:0.9rem; text-transform:uppercase; letter-spacing:0.08em; color:var(--clr-green); } .pub-extras-card ul { margin:0; padding-left:18px; } .pub-extras-card li { margin-bottom:6px; font-size:0.82rem; line-height:1.4; } .pub-muted { font-size:0.8rem; opacity:0.7; } .pub-artifacts { display:flex; flex-wrap:wrap; gap:8px; } .pub-chip { font-size:0.7rem; text-transform:uppercase; letter-spacing:0.08em; padding:6px 10px; border-radius:999px; border:1px solid rgba(0,229,255,0.35); color:#bde8ff; background:rgba(0,229,255,0.1); text-decoration:none; } .pub-related { list-style:none; padding:0; margin:0; display:flex; flex-direction:column; gap:8px; } .pub-related li { display:flex; flex-direction:column; gap:2px; } .pub-related a { color:var(--clr-cyan); text-decoration:none; font-size:0.82rem; } .pub-related span { font-size:0.72rem; opacity:0.7; } .pub-citation { display:flex; flex-direction:column; gap:10px; } .pub-citation-text { font-size:0.8rem; line-height:1.4; background:rgba(0,0,0,0.35); border-radius:10px; padding:10px; border:1px solid rgba(0,255,65,0.2); } .pub-citation-actions { display:flex; flex-wrap:wrap; gap:8px; } .pub-copy { align-self:flex-start; border-radius:999px; border:1px solid rgba(0,255,65,0.4); color:var(--clr-green); background:rgba(0,255,65,0.12); padding:6px 12px; font-size:0.7rem; text-transform:uppercase; letter-spacing:0.08em; cursor:pointer; } .pub-copy.copied { color:#111; background:var(--clr-green); } body:not(.dark) .pub-extras-card { background:rgba(255,255,255,0.92); } body:not(.dark) .pub-extras-card h3 { color:#0b7a2f; } body:not(.dark) .pub-citation-text { background:rgba(255,255,255,0.9); } </style>