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15    <title>Deepak Babu Piskala | Principal AI Scientist</title>
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74        <h1>Deepak Babu Piskala</h1>
75        <p>Principal AI Scientist</p>
76        <div class="profile-links" aria-label="Social links">
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107        </div>
108    </header>
109
110    <nav>
111      <a href="index.html" class="active">About</a>
112      <a href="research.html">Research</a>
113      <a href="publications.html">Publications</a>
114      <a href="awards.html">Awards</a>
115      <a href="blogs.html">Blog</a>
116      <a href="projects.html">My Works</a>
117      <a href="resources.html">Resources</a>
118      <a href="sm_posts.html">Social</a>
119      <a href="contact.html">Contact</a>
120    </nav>
121
122    <main id="main-content">
123      <section id="hero" class="hero-section">
124        <div class="about-container">
125          <img src="1DC549B4-26BA-4564-8BCA-40CBFABB7AC8.jpeg" alt="Portrait of Deepak Babu Piskala" class="profile-image" width="170" height="170" fetchpriority="high">
126          <div class="hero-content">
127            <h2>Building reliable AI systems from research to production</h2>
128            <p class="lead">I am a Principal AI Scientist with two decades in ML/AI, focused on speech, language models, retrieval systems, and agentic architectures at production scale. My book, <strong>Building Speech AI</strong>, is now available.</p>
129            <div class="hero-ctas">
130              <a class="btn" href="building-speech-ai/" data-analytics-event="home_cta" data-analytics-label="building_speech_ai_book">Read the book page</a>
131              <a class="btn btn-outline" href="blogs.html" data-analytics-event="home_cta" data-analytics-label="read_latest_blog">Read latest blog</a>
132              <a class="btn btn-outline" href="publications.html" data-analytics-event="home_cta" data-analytics-label="view_publications">View publications</a>
133            </div>
134          </div>
135        </div>
136      </section>
137
138      <section id="ieee-stem-summit" class="event-spotlight" aria-labelledby="ieee-stem-summit-title">
139        <div class="event-spotlight-copy">
140          <p class="eyebrow">Upcoming event · IEEE STEM Summit 2026</p>
141          <h2 id="ieee-stem-summit-title">How do voice assistants hear us?</h2>
142          <p class="lead">A free, hands-on Speech AI Classroom Kit for teachers, educators, parents, and students in grades 3–12. Explore a live spectrogram, solve a sound-picture mystery, compare speech recognition under noise, and download printable activities.</p>
143          <p class="event-meta"><strong>October 23, 2026</strong> · Virtual exhibit and classroom resources</p>
144          <a class="btn" href="stem_summit/" data-analytics-event="home_event_click" data-analytics-label="ieee_stem_summit_2026">Explore the STEM Summit kit</a>
145        </div>
146        <a class="event-spotlight-link" href="stem_summit/" aria-label="Open the IEEE STEM Summit 2026 Speech AI Classroom Kit" data-analytics-event="home_event_click" data-analytics-label="ieee_stem_summit_2026_visual">
147          <span class="event-icon" aria-hidden="true">🎙️</span>
148          <span>Speech AI<br>Classroom Kit</span>
149        </a>
150      </section>
151
152      <section id="building-speech-ai" class="book-spotlight" aria-labelledby="building-speech-ai-title">
153        <div class="book-spotlight-copy">
154          <p class="eyebrow">New book</p>
155          <h2 id="building-speech-ai-title">Building Speech AI</h2>
156          <p class="lead">A practitioner's guide to speech recognition, synthesis, audio language models, real-time voice agents, and production tradeoffs, with runnable Python companion code.</p>
157          <div class="book-spotlight-actions">
158            <a class="btn" href="building-speech-ai/" data-analytics-event="home_book_click" data-analytics-label="book_landing_page">Explore the book</a>
159            <a class="btn btn-outline" href="https://github.com/prdeepakbabu/building-speech-ai" target="_blank" rel="noopener" data-analytics-event="home_book_click" data-analytics-label="book_companion_repo">Companion repo</a>
160          </div>
161        </div>
162        <a class="book-cover-link" href="building-speech-ai/" aria-label="Open Building Speech AI book page" data-analytics-event="home_book_click" data-analytics-label="book_cover">
163          <img src="https://m.media-amazon.com/images/I/81qK1Znrv-L._SY522_.jpg" alt="Building Speech AI book cover" width="260" height="392" loading="lazy">
164        </a>
165      </section>
166
167      <section id="highlights">
168        <h2>Highlights</h2>
169        <p class="section-intro">A quick snapshot of current work, output, and research service.</p>
170        <!-- HOMEPAGE_HIGHLIGHTS:START -->
171        <div class="highlights-grid">
172          <a class="highlight-card" href="research.html" aria-label="View research areas" data-analytics-event="home_highlight_click" data-analytics-label="experience_years">
173            <span class="highlight-value">20+</span>
174            <span class="highlight-label">Years in ML/AI</span>
175          </a>
176          <a class="highlight-card" href="publications.html" aria-label="View publications" data-analytics-event="home_highlight_click" data-analytics-label="patents_and_papers">
177            <span class="highlight-value">24</span>
178            <span class="highlight-label">Google Scholar listings</span>
179          </a>
180          <a class="highlight-card" href="publications.html" aria-label="View recent publications" data-analytics-event="home_highlight_click" data-analytics-label="recent_outputs">
181            <span class="highlight-value">15</span>
182            <span class="highlight-label">Recent papers and preprints (2025-2026)</span>
183          </a>
184          <a class="highlight-card" href="research.html" aria-label="View research and service" data-analytics-event="home_highlight_click" data-analytics-label="review_venues">
185            <span class="highlight-value">6+</span>
186            <span class="highlight-label">Review venues (NeurIPS, ICML, KDD, AMLC, ARA, EMNLP)</span>
187          </a>
188        </div>
189        <!-- HOMEPAGE_HIGHLIGHTS:END -->
190      </section>
191
192      <section id="about">
193        <h2>About Me</h2>
194        <div class="about-container">
195          <img src="1DC549B4-26BA-4564-8BCA-40CBFABB7AC8.jpeg" alt="Profile picture" class="profile-image" width="170" height="170" loading="lazy">
196          <div>
197            <p>Deepak has built and shipped large-scale machine learning systems across retail, FMCG, search relevance, computational advertising, and voice assistants. He has led work on speech recognition and language understanding at Amazon Alexa, helped build contextual advertising systems at Amazon Ads, and is the author of <a href="building-speech-ai/">Building Speech AI</a>.</p>
198            <p>His work at Alexa included personalized, self-healing error-correction models that learn from user interaction data, enabling runtime query rewriting with low-latency inference paths. His technical focus connects research and production deployment across LLMs, multimodal systems, retrieval-augmented generation, and agents.</p>
199            <p>He is a Senior Member of IEEE (Seattle Chapter), reviewer for NeurIPS, ICML, KDD, AMLC, ARA, and EMNLP, and advisor to early-stage startups in advertising and healthcare.</p>
200            <div class="company-experience" aria-label="Company experience">
201              <div class="company-row">
202                <span class="company-row-label">Present</span>
203                <ul class="company-logos">
204                  <li>
205                    <span class="company-logo" aria-label="Microsoft">
206                      <svg viewBox="0 0 24 24" aria-hidden="true">
207                        <rect x="2" y="2" width="9" height="9" fill="#f25022"></rect>
208                        <rect x="13" y="2" width="9" height="9" fill="#7fba00"></rect>
209                        <rect x="2" y="13" width="9" height="9" fill="#00a4ef"></rect>
210                        <rect x="13" y="13" width="9" height="9" fill="#ffb900"></rect>
211                      </svg>
212                      <span>Microsoft</span>
213                    </span>
214                  </li>
215                </ul>
216              </div>
217              <div class="company-row">
218                <span class="company-row-label">Past</span>
219                <ul class="company-logos">
220                  <li>
221                    <span class="company-logo" aria-label="Amazon">
222                      <svg viewBox="0 0 48 24" aria-hidden="true">
223                        <text x="2" y="13" font-size="9" font-weight="800" fill="#111827">amazon</text>
224                        <path d="M15 18c7 4 18 3 25-3" fill="none" stroke="#ff9900" stroke-width="2" stroke-linecap="round"></path>
225                        <path d="M38 15l5-1-3 4" fill="none" stroke="#ff9900" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round"></path>
226                      </svg>
227                      <span>Amazon</span>
228                    </span>
229                  </li>
230                  <li>
231                    <span class="company-logo" aria-label="Amazon Alexa">
232                      <svg viewBox="0 0 24 24" aria-hidden="true">
233                        <circle cx="12" cy="12" r="10" fill="#00a0dc"></circle>
234                        <path d="M7 14c1.2 2.3 3.5 3.8 6.1 3.8 1.2 0 2.3-.3 3.3-.8-1.1 1.4-2.8 2.2-4.7 2.2A6.7 6.7 0 0 1 5 12.5C5 8.8 8 5.8 11.7 5.8c2.1 0 4 1 5.2 2.6A6.6 6.6 0 0 0 7 14z" fill="#ffffff"></path>
235                      </svg>
236                      <span>Alexa</span>
237                    </span>
238                  </li>
239                  <li>
240                    <span class="company-logo" aria-label="Amazon Ads">
241                      <svg viewBox="0 0 34 24" aria-hidden="true">
242                        <rect x="2" y="4" width="30" height="16" fill="#111827"></rect>
243                        <text x="7" y="15" font-size="9" font-weight="800" fill="#ffffff">ads</text>
244                        <path d="M7 18c5 2 13 1.8 19-2" fill="none" stroke="#ff9900" stroke-width="1.6" stroke-linecap="round"></path>
245                      </svg>
246                      <span>Amazon Ads</span>
247                    </span>
248                  </li>
249                  <li>
250                    <span class="company-logo" aria-label="Freshworks">
251                      <svg viewBox="0 0 24 24" aria-hidden="true">
252                        <circle cx="12" cy="12" r="10" fill="#0f9d58"></circle>
253                        <path d="M8 15V7h8v3h-5v2h4v3h-4v2H8z" fill="#ffffff"></path>
254                      </svg>
255                      <span>Freshworks</span>
256                    </span>
257                  </li>
258                  <li>
259                    <span class="company-logo" aria-label="Snapdeal">
260                      <svg viewBox="0 0 24 24" aria-hidden="true">
261                        <path d="M12 2l9 5v10l-9 5-9-5V7l9-5z" fill="#e40046"></path>
262                        <text x="7.2" y="15" font-size="9" font-weight="900" fill="#ffffff">S</text>
263                      </svg>
264                      <span>Snapdeal</span>
265                    </span>
266                  </li>
267                  <li>
268                    <span class="company-logo" aria-label="InMobi">
269                      <svg viewBox="0 0 24 24" aria-hidden="true">
270                        <rect x="3" y="3" width="18" height="18" fill="#0f172a"></rect>
271                        <text x="6" y="15" font-size="8" font-weight="900" fill="#ffffff">im</text>
272                      </svg>
273                      <span>InMobi</span>
274                    </span>
275                  </li>
276                  <li>
277                    <span class="company-logo" aria-label="Mu Sigma">
278                      <svg viewBox="0 0 24 24" aria-hidden="true">
279                        <circle cx="12" cy="12" r="10" fill="#f28c28"></circle>
280                        <text x="5.2" y="15" font-size="8" font-weight="900" fill="#111827">MS</text>
281                      </svg>
282                      <span>Mu Sigma</span>
283                    </span>
284                  </li>
285                  <li>
286                    <span class="company-logo" aria-label="Infosys">
287                      <svg viewBox="0 0 24 24" aria-hidden="true">
288                        <rect x="3" y="3" width="18" height="18" fill="#007cc3"></rect>
289                        <text x="9" y="16" font-size="12" font-weight="900" fill="#ffffff">I</text>
290                      </svg>
291                      <span>Infosys</span>
292                    </span>
293                  </li>
294                </ul>
295              </div>
296            </div>
297            <p><strong>Past life:</strong> Management consultant for a Fortune-50 CPG/pharma company, advising one of the largest loyalty program rollouts.</p>
298            <h3>Research Interests</h3>
299            <ul class="three-column-list">
300              <li>Speech (ASR)</li>
301              <li>Language Models</li>
302              <li>NLP/G</li>
303              <li>LLM Agents and World Models</li>
304              <li>Behavioral Science</li>
305              <li>Computational Advertising</li>
306              <li>Search Relevance</li>
307              <li>Information Retrieval/RAG</li>
308              <li>Voice Assistants</li>
309            </ul>
310            <p><a href="research.html">More on my research</a></p>
311          </div>
312        </div>
313      </section>
314
315      <section id="featured-work">
316        <h2>Featured Work</h2>
317        <div class="featured-grid">
318          <div class="featured-column">
319            <h3>Selected Publications</h3>
320            <ul class="featured-list">
321              <li>
322                <a href="https://arxiv.org/abs/2602.13258" target="_blank" rel="noopener" data-analytics-event="home_featured_publication_click" data-analytics-label="maple_sub_agent_architecture">
323                  MAPLE: A Sub-Agent Architecture for Memory, Learning, and Personalization
324                </a>
325              </li>
326              <li>
327                <a href="https://arxiv.org/abs/2602.00180" target="_blank" rel="noopener" data-analytics-event="home_featured_publication_click" data-analytics-label="spec_driven_development">
328                  Spec-Driven Development: From Code to Contract in the Age of AI Coding Assistants
329                </a>
330              </li>
331            </ul>
332            <a class="btn btn-compact" href="publications.html" data-analytics-event="home_cta" data-analytics-label="see_all_publications">See all publications</a>
333          </div>
334          <div class="featured-column">
335            <h3>Latest Blog Posts</h3>
336            <ul class="featured-list">
337              <li>
338                <a href="post.html?post=control-not-intelligence-the-missing-axis-in-agentic-ai-choosing-between-tool-subagents-and-707c78aef7bb" data-analytics-event="home_featured_post_click" data-analytics-label="blog_control_not_intelligence">
339                  Control, Not Intelligence: The Missing Axis in Agentic AI
340                </a>
341              </li>
342              <li>
343                <a href="post.html?post=spec-driven-development-when-intent-becomes-the-source-code-3af39f86b9d3" data-analytics-event="home_featured_post_click" data-analytics-label="blog_spec_driven_development">
344                  Spec-Driven Development: When Intent Becomes the Source Code
345                </a>
346              </li>
347            </ul>
348            <a class="btn btn-compact" href="blogs.html" data-analytics-event="home_cta" data-analytics-label="see_all_posts">See all blog posts</a>
349          </div>
350        </div>
351      </section>
352    </main>
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