Repository navigation
Expand file tree
/
Copy pathindex.html
More file actions
703 lines (630 loc) · 36.8 KB
/
Copy pathindex.html
File metadata and controls
703 lines (630 loc) · 36.8 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Devis Wawan Saputra | Learning Designer | AIEd</title>
<meta name="description" content="Learning Designer and AIEd researcher with 10+ years across higher education, corporate learning, learning systems, AI engineering, and applied research.">
<link rel="canonical" href="https://devissaputra.github.io/">
<meta name="author" content="Devis Wawan Saputra">
<meta property="og:type" content="profile">
<meta property="og:title" content="Devis Wawan Saputra | Learning Designer | AIEd">
<meta property="og:description" content="Learning Designer and AIEd researcher with 10+ years across higher education, corporate learning, learning systems, AI engineering, and applied research.">
<meta property="og:url" content="https://devissaputra.github.io/">
<meta property="og:image" content="https://devissaputra.github.io/assets/ld/Devis.jpg">
<meta property="og:image:alt" content="Devis Wawan Saputra portfolio">
<meta name="twitter:card" content="summary_large_image">
<meta name="twitter:title" content="Devis Wawan Saputra | Learning Designer | AIEd">
<meta name="twitter:description" content="Learning Designer and AIEd researcher with 10+ years across higher education, corporate learning, learning systems, AI engineering, and applied research.">
<meta name="twitter:image" content="https://devissaputra.github.io/assets/ld/Devis.jpg">
<link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 64 64'%3E%3Crect width='64' height='64' rx='12' fill='%232F5D62'/%3E%3Ctext x='32' y='40' text-anchor='middle' font-family='Arial,sans-serif' font-size='26' font-weight='700' fill='white'%3EDS%3C/text%3E%3C/svg%3E">
<script type="application/ld+json">
{"@context":"https://schema.org","@type":"Person","@id":"https://devissaputra.github.io/#person","name":"Devis Wawan Saputra","alternateName":"Devis Saputra","url":"https://devissaputra.github.io/","jobTitle":"Learning Designer","sameAs":["https://www.linkedin.com/in/devissaputra","https://github.com/devissaputra","https://orcid.org/0000-0002-7133-9410","https://scholar.google.com/citations?user=EB5_ZRMAAAAJ"],"knowsAbout":["Learning and Development","Artificial Intelligence in Education","Learning Analytics","AI Engineering","Systems Engineering"]}
</script>
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&family=Source+Sans+3:wght@400;500;600;700&family=Source+Serif+4:wght@400;500;600;700&display=swap" rel="stylesheet">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.7.2/css/all.min.css">
<link rel="stylesheet" href="https://cdn.jsdelivr.net/gh/jpswalsh/academicons@1/css/academicons.min.css">
<style>
:root{
--paper:#EEF0EF;
--paper-raised:#F5F6F5;
--ink:#1B2430;
--ink-soft:#5B6660;
--line:#C9CDC5;
--accent:#2F5D62;
--accent-soft:#DDE6E4;
--live:#B5563B;
--live-soft:#F1DED7;
--serif: "Source Serif 4", Georgia, serif;
--sans: "IBM Plex Sans", -apple-system, Segoe UI, Arial, sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
margin:0;
background:var(--paper);
color:var(--ink);
font-family:var(--sans);
font-size:16px;
line-height:1.55;
-webkit-font-smoothing:antialiased;
}
a{color:var(--accent);}
a:focus-visible, button:focus-visible{
outline:2px solid var(--accent);
outline-offset:3px;
}
h1,h2,h3{
font-family:var(--serif);
font-weight:600;
line-height:1.2;
margin:0;
}
.page{
display:grid;
grid-template-columns:280px 1fr;
max-width:1180px;
margin:0 auto;
}
/* ---------- Sidebar ---------- */
.sidebar{
padding:64px 32px 64px 40px;
position:sticky;
top:0;
align-self:start;
height:100vh;
display:flex;
flex-direction:column;
justify-content:space-between;
}
.sidebar-top h1{
font-size:1.7rem;
letter-spacing:-0.01em;
}
.tagline{
margin-top:10px;
color:var(--ink-soft);
font-size:0.98rem;
max-width:22ch;
}
.name-variant{margin:6px 0 0;font-size:0.79rem;color:var(--ink-soft);}
.meta-block{
margin-top:28px;
font-size:0.9rem;
color:var(--ink-soft);
}
.meta-block div{margin-bottom:4px;}
nav.toc{
margin-top:20px;
}
nav.toc a{
display:block;
padding:7px 0;
color:var(--ink);
text-decoration:none;
font-size:0.95rem;
border-left:2px solid transparent;
padding-left:12px;
margin-left:-12px;
transition:border-color .15s ease, color .15s ease;
}
nav.toc a:hover,
nav.toc a:focus-visible{
border-left-color:var(--accent);
color:var(--accent);
}
nav.toc a.portfolio-menu{
color:#1E3A8A;
transform:translateX(10px);
}
nav.toc a.portfolio-menu:hover,
nav.toc a.portfolio-menu:focus-visible{
color:#172554;
border-left-color:#1E3A8A;
}
nav.toc a.publications-menu{
color:#1E3A8A;
transform:translateX(10px);
}
nav.toc a.publications-menu:hover,
nav.toc a.publications-menu:focus-visible{
color:#172554;
border-left-color:#1E3A8A;
}
nav.toc a.portfolio-menu,
nav.toc a.publications-menu{
display:flex;
align-items:center;
justify-content:flex-start;
gap:7px;
}
nav.toc .menu-icon{
display:inline-flex;
align-items:center;
margin-left:0;
font-size:0.9rem;
}
nav.toc a.portfolio-menu{
margin-bottom:7px;
}
.sidebar-bottom{
display:grid;
grid-template-columns:repeat(2,minmax(0,1fr));
column-gap:12px;
row-gap:9px;
font-size:0.84rem;
color:var(--ink-soft);
}
.sidebar-bottom .contact-label{
grid-column:1 / -1;
color:var(--ink);
font-size:0.9rem;
font-weight:600;
margin-bottom:2px;
}
.sidebar-bottom a{
display:flex;
align-items:center;
gap:7px;
min-width:0;
color:var(--accent);
text-decoration:none;
white-space:nowrap;
}
.sidebar-bottom a:hover{color:var(--accent-deep);}
.sidebar-bottom i{
width:18px;
flex:0 0 18px;
text-align:center;
font-size:16px;
}
.sidebar-bottom .scholar{
grid-column:1 / -1;
}
/* ---------- Main content ---------- */
.content{
padding:64px 48px 96px 24px;
border-left:1px solid var(--line);
}
section{
max-width:640px;
margin-bottom:76px;
scroll-margin-top:32px;
}
section:last-of-type{margin-bottom:0;}
.eyebrow-rule{
display:flex;
align-items:center;
gap:14px;
margin-bottom:22px;
}
.eyebrow-rule h2{
font-size:1.4rem;
white-space:nowrap;
}
.eyebrow-rule::after{
content:"";
flex:1;
height:1px;
background:var(--line);
}
#portfolio .eyebrow-rule h2,
#publications .eyebrow-rule h2{
color:#1E3A8A;
}
p{margin:0 0 16px 0;}
p:last-child{margin-bottom:0;}
.lede{
font-family:var(--serif);
font-size:1.18rem;
line-height:1.5;
}
.research-frame{
margin-top:20px;
font-size:0.92rem;
color:var(--ink-soft);
}
.research-frame span{
color:var(--ink);
}
/* ---------- Timeline ---------- */
.timeline{
position:relative;
padding-left:28px;
}
.timeline::before{
content:"";
position:absolute;
left:5px;
top:6px;
bottom:6px;
width:1px;
background:var(--line);
}
.entry{
position:relative;
padding-bottom:34px;
}
.entry:last-child{padding-bottom:0;}
.entry::before{
content:"";
position:absolute;
left:-28px;
top:5px;
width:9px;
height:9px;
border-radius:50%;
background:var(--accent);
border:2px solid var(--paper);
box-shadow:0 0 0 1px var(--accent);
}
.entry.live::before{
background:var(--live);
box-shadow:0 0 0 1px var(--live);
}
.entry .years{
font-size:0.82rem;
color:var(--ink-soft);
font-variant-numeric:tabular-nums;
margin-bottom:4px;
}
.entry h3{
font-size:1.05rem;
}
.entry .org{
font-size:0.92rem;
color:var(--ink-soft);
margin-top:2px;
margin-bottom:8px;
}
.entry p{font-size:0.95rem;}
.entry.live .years{
color:var(--live);
font-weight:500;
}
/* ---------- Research ---------- */
.portfolio-nav {
display: grid;
grid-template-columns: repeat(3, 1fr);
gap: 10px;
width: 100%;
}
.portfolio-nav a {
display: flex;
align-items: center;
justify-content: center;
min-height: 50px;
background-color: #f2f2f2;
color: #222;
text-decoration: none;
text-align: center;
font-weight: 600;
padding: 10px;
border: 1px solid #dddddd;
border-radius: 6px;
box-sizing: border-box;
}
.portfolio-nav a:hover {
background-color: #e4e4e4;
}
/* ---------- Publications ---------- */
.pub-list{
list-style:none;
margin:0 0 20px 0;
padding:0;
}
.pub-list li{
padding:14px 0;
border-bottom:1px solid var(--line);
font-size:0.95rem;
}
.pub-list li:first-child{padding-top:0;}
.pub-title{
font-family:var(--serif);
display:block;
margin-bottom:2px;
}
.pub-meta{
color:var(--ink-soft);
font-size:0.85rem;
}
.pub-note{
font-size:0.88rem;
color:var(--ink-soft);
}
/* ---------- Skills ---------- */
.skill-grid{
display:grid;
grid-template-columns:1fr 1fr;
gap:24px 32px;
}
.skill-group h3{
font-size:0.82rem;
font-family:var(--sans);
font-weight:600;
color:var(--ink-soft);
margin-bottom:8px;
}
.skill-group p{
font-size:0.93rem;
margin-bottom:0;
}
.training-list{margin:0;padding-left:18px;font-size:0.93rem;}
.training-list li{margin-bottom:7px;}
.training-list li:last-child{margin-bottom:0;}
/* ---------- Contact ---------- */
.contact-row{
display:flex;
flex-wrap:wrap;
gap:12px;
margin-top:8px;
}
.contact-row a{
font-size:0.95rem;
padding:9px 16px;
border:1px solid var(--line);
border-radius:2px;
text-decoration:none;
color:var(--ink);
background:var(--paper-raised);
transition:border-color .15s ease, color .15s ease;
}
.contact-row a:hover,
.contact-row a:focus-visible{
border-color:var(--accent);
color:var(--accent);
}
/* ---------- Responsive ---------- */
@media (max-width:860px){
.page{grid-template-columns:1fr;}
.sidebar{
position:static;
height:auto;
padding:40px 24px 32px 24px;
flex-direction:row;
justify-content:space-between;
align-items:flex-start;
flex-wrap:wrap;
border-bottom:1px solid var(--line);
}
.sidebar-top{flex:1 1 220px;}
nav.toc{display:none;}
.sidebar-bottom{
max-width:430px;
}
.content{
padding:40px 24px 64px 24px;
border-left:none;
}
.skill-grid{grid-template-columns:1fr;}
}
@media (max-width:650px){
.portfolio-nav{grid-template-columns:1fr;}
}
@media (prefers-reduced-motion: reduce){
html{scroll-behavior:auto;}
*{transition:none !important;}
}
/* Book and institutional-output entries have no separating rules. */
.books-list li{border-bottom:none;}
/* Keep publication DOI links immediately after their citation text. */
#publications .pub-list .inline-doi{display:inline; margin:0 0 0 6px; vertical-align:baseline;}
/* Research profile: accessible, compact academic summary. */
#summary .research-profile-lead{max-width:67ch;margin:0 0 13px;font-family:var(--serif);font-size:1.17rem;font-weight:600;line-height:1.48;color:#183B60;}
#summary .research-profile-body{max-width:71ch;margin:0 0 12px;font-size:1rem;line-height:1.63;color:#263342;}
#summary .research-profile-links{display:flex;flex-wrap:wrap;gap:9px;margin-top:19px;}
#summary .research-profile-links a{display:inline-flex;align-items:center;gap:5px;padding:9px 12px;border:1px solid #BFCBD7;border-radius:4px;background:#FAFBFC;color:#1E3A5F;font-size:.91rem;font-weight:600;line-height:1.35;text-decoration:none;}
#summary .research-profile-links a:hover,#summary .research-profile-links a:focus-visible{background:#EAF0F6;border-color:#1E3A5F;text-decoration:underline;text-underline-offset:3px;}
#summary .research-profile-link-detail{font-size:.87em;font-weight:400;}
@media(max-width:560px){#summary .research-profile-lead{font-size:1.11rem;}#summary .research-profile-links a{width:100%;justify-content:center;}}
/* Research Profile: single-paragraph compact presentation. */
.home-page #summary{margin-bottom:18px;}
.home-page #summary .eyebrow-rule{margin-bottom:6px;}
.home-page #summary .research-profile-body{margin:0;font-size:.85rem;line-height:1.45;max-width:82ch;}
.home-page #summary .research-profile-links{margin-top:9px;gap:6px;}
@media(max-width:750px){.home-page #summary .research-profile-body{font-size:.88rem;line-height:1.5;}}
/* Publication styling: original Indonesian titles normal, English titles dark grey. */
#publications .pub-title{font-weight:400;}
#publications .pub-title b,#publications .pub-title > strong:not(.english-title){font-weight:700;}
#publications .pub-title .english-title,
#publications .pub-title .translation,
#publications .books-list .translation,
#publications .pub-list .translation{color:#4B5563;font-weight:400;}
#publications .pub-title .english-title{font-weight:600;}
#publications .books-list em{font-weight:400;}
</style>
<link rel="stylesheet" href="assets/site.css?v=20261108-featured-compact-v11">
<link rel="stylesheet" href="assets/typography.css?v=20261108-work-description-1pt-v7">
</head>
<body class="home-page">
<a class="skip-link" href="#main-content">Skip to main content</a>
<div class="page">
<aside class="sidebar">
<div class="sidebar-top">
<h1>Devis Wawan Saputra</h1>
<p class="tagline">Learning Designer | AIEd</p>
<nav class="toc" aria-label="Section navigation">
<a href="#summary"><b>Profile</b></a>
<a class="portfolio-menu" href="#portfolio"><b>Portfolio</b><span class="menu-icon" aria-hidden="true"><i class="fa-brands fa-github"></i></span></a>
<a href="#featured-research"><b>Featured Research</b></a>
<a class="publications-menu" href="#publications"><b>Publications</b><span class="menu-icon" aria-hidden="true"><i class="fa-solid fa-pen-to-square"></i></span></a>
<a href="#work"><b>Work Experience</b></a>
<a href="#education"><b>Education</b></a>
<a href="#competence"><b>Competence</b></a>
<a href="#contact"><b>Contact</b></a>
</nav>
</div>
<div class="sidebar-bottom" aria-label="Contact links">
<div class="contact-label">Links</div>
<a href="mailto:devis.saputra@gmail.com">
<i class="fa-solid fa-envelope" aria-hidden="true"></i><span>Email</span>
</a>
<a href="https://linkedin.com/in/devissaputra" target="_blank" rel="noopener noreferrer">
<i class="fa-brands fa-linkedin" aria-hidden="true"></i><span>LinkedIn</span>
</a>
<a href="https://www.xing.com/profile/Devis_Saputra" target="_blank" rel="noopener noreferrer">
<i class="fa-brands fa-xing" aria-hidden="true"></i><span>Xing</span>
</a>
<a href="https://github.com/devissaputra/" target="_blank" rel="noopener noreferrer">
<i class="fa-brands fa-github" aria-hidden="true"></i><span>GitHub</span>
</a>
<a href="https://orcid.org/0000-0002-7133-9410" target="_blank" rel="noopener noreferrer">
<i class="ai ai-orcid" aria-hidden="true"></i><span>ORCID</span>
</a>
<a class="scholar" href="https://scholar.google.com/citations?user=EB5_ZRMAAAAJ&hl=en&oi=ao" target="_blank" rel="noopener noreferrer">
<i class="ai ai-google-scholar" aria-hidden="true"></i><span>Google Scholar</span>
</a>
</div>
</aside>
<main class="content" id="main-content">
<section id="summary" aria-labelledby="research-profile-heading">
<div class="eyebrow-rule"><h2 id="research-profile-heading">Research Profile</h2></div>
<p class="research-profile-body">My work connects Artificial Intelligence in Education, learning analytics, and learning systems design. I study learner modeling, knowledge tracing, data provenance, and the evaluation of AI-supported learning, with an emphasis on reproducible methods and careful interpretation of observational evidence. This research builds on my experience in university teaching, engineering management curriculum leadership, and Moodle-based workplace learning. I aim to examine how rigorous empirical research can inform the design and evaluation of learning technologies.</p>
<div class="research-profile-links" aria-label="Curriculum vitae">
<a href="assets/cv/Devis_Wawan_Saputra_Academic_CV.pdf">Academic CV <span class="research-profile-link-detail">(PDF)</span></a>
<a href="assets/cv/Devis_Wawan_Saputra_Working_CV.pdf">Professional CV <span class="research-profile-link-detail">(PDF)</span></a>
<a href="lebenslauf.html" lang="de" hreflang="de">Lebenslauf <span class="research-profile-link-detail">(Deutsch)</span></a>
</div>
</section>
<section id="portfolio">
<div class="eyebrow-rule"><h2>Portfolio</h2></div>
<div class="portfolio-nav" aria-label="Portfolio areas">
<a href="research.html">Research</a>
<a href="learningdevelopment.html">Learning & Development</a>
<a href="aiengineering.html">AI Engineering</a>
<a href="aieducation.html">AI in Education</a>
<a href="systemsengineering.html">Systems Engineering</a>
</div>
</section>
<section id="featured-research" aria-labelledby="featured-research-heading">
<div class="eyebrow-rule"><h2 id="featured-research-heading">Featured Research</h2></div>
<p class="featured-research-intro">Three AI in Education studies with methods, results, and linked evidence.</p>
<div class="featured-research-grid">
<article class="featured-research-card featured-research-blue">
<div class="featured-research-top"><span class="featured-research-domain">Learner modeling</span><span class="featured-research-status">Working paper · 2026</span></div>
<h3>Knowledge Tracing</h3>
<p class="featured-research-subtitle">ASSISTments 2009 and 2015</p>
<p class="featured-research-summary">Audits source-data differences and compares models given the same learner-history budget.</p>
<div class="featured-research-evidence"><strong>817 / 4,148</strong><span>learner sequences differed across 2009 source versions</span></div>
<div class="featured-research-links"><a href="aieducation.html#knowledge_tracing_benchmark" aria-label="View Knowledge Tracing study details">Study details <span aria-hidden="true">↗</span></a><a href="https://github.com/devissaputra/knowledge_tracing_benchmark" target="_blank" rel="noopener noreferrer">Code <span aria-hidden="true">↗</span></a></div>
</article>
<article class="featured-research-card featured-research-teal">
<div class="featured-research-top"><span class="featured-research-domain">Learning analytics</span><span class="featured-research-status">Working paper · 2026</span></div>
<h3>Early Assessment</h3>
<p class="featured-research-subtitle">OULAD day-30 landmark</p>
<p class="featured-research-summary">Studies day-30 submission and later outcomes using weighting and overlap diagnostics. No causal claim.</p>
<div class="featured-research-evidence"><strong>1,820</strong><span>learners in the analytic cohort</span></div>
<div class="featured-research-links"><a href="aieducation.html#causal_learning_analytics" aria-label="View Early Assessment study details">Study details <span aria-hidden="true">↗</span></a><a href="https://github.com/devissaputra/causal_learning_analytics" target="_blank" rel="noopener noreferrer">Code <span aria-hidden="true">↗</span></a></div>
</article>
<article class="featured-research-card featured-research-rose">
<div class="featured-research-top"><span class="featured-research-domain">Educational NLP</span><span class="featured-research-status">Empirical benchmark</span></div>
<h3>Classroom Discourse</h3>
<p class="featured-research-subtitle">TalkMoves teacher utterances</p>
<p class="featured-research-summary">Benchmarks teacher-talk classification without treating predictions as evidence of teaching quality.</p>
<div class="featured-research-evidence"><strong>0.5198</strong><span>held-out macro-F1; baseline 0.1152</span></div>
<div class="featured-research-links"><a href="aieducation.html#classroom_discourse_intelligence" aria-label="View Classroom Discourse study details">Study details <span aria-hidden="true">↗</span></a><a href="https://github.com/devissaputra/classroom_discourse_intelligence" target="_blank" rel="noopener noreferrer">Code <span aria-hidden="true">↗</span></a></div>
</article>
</div>
</section>
<section id="publications">
<div class="eyebrow-rule"><h2>Publications</h2></div><p>Research outputs are grouped by status, separating working manuscripts from published work and other academic materials.</p><div id="working-papers-2026">
<h3>Working papers (2026)</h3>
<p class="pub-note">arXiv submission in progress; one endorsement pending. These are working manuscripts, not published or peer-reviewed papers.</p>
<ul class="pub-list">
<li>
<span class="pub-title"><b>Saputra, D. W.</b> (2026). <strong class="english-title">When Knowledge-Tracing Rankings Depend on Available History: A Source-Correction and Matched-Information Audit on ASSISTments 2009 and 2015.</strong></span>
<span class="pub-meta">Working manuscript · arXiv endorsement pending · Knowledge tracing, source-data provenance, and matched-information model evaluation</span>
<a href="https://github.com/devissaputra/knowledge_tracing_benchmark" target="_blank" rel="noopener noreferrer">Code and manuscript</a>
</li>
<li>
<span class="pub-title"><b>Saputra, D. W.</b> (2026). <strong class="english-title">Early Assessment Submission and Subsequent Course Outcome: A Day-30 Landmark Observational Analysis of OULAD with Explicit Weighting Diagnostics.</strong></span>
<span class="pub-meta">Working manuscript · arXiv endorsement pending · OULAD learning analytics, day-30 landmark, propensity weighting, and overlap diagnostics</span>
<a href="https://github.com/devissaputra/causal_learning_analytics" target="_blank" rel="noopener noreferrer">Code and manuscript</a>
</li>
</ul>
</div>
<h3>Articles and conference proceedings</h3><ul class="pub-list"><li><span class="pub-title">Silalahi, F. T. R., <b>Saputra, D. W.</b>, Panjaitan, G., Butar-Butar, M., & Manurung, N. M. (2023). <strong class="english-title">Influencing Student Choice: A Case Study of a Boarding Private University in Indonesia.</strong> <em>Proceedings of ICEBE 2022, pp. 429-443.</em> <a class="inline-doi" href="https://doi.org/10.2991/978-2-38476-064-0_46">DOI</a></span></li><li><span class="pub-title"><b>Saputra, D. W.</b> (2022). Optimalisasi Rute Distribusi Kurir Menggunakan Metode Traveling Salesman Problem (Studi Kasus: JNE Balige) <span class="translation">[Optimization of Courier Distribution Routes Using the Traveling Salesman Problem Method (Case Study: JNE Balige)]</span>. <em>G-Tech: Jurnal Teknologi Terapan, 6(2), 159-165.</em> <a class="inline-doi" href="https://doi.org/10.33379/gtech.v6i2.1577">DOI</a></span></li><li><span class="pub-title">Meliala, G. N., & <b>Saputra, D. W.</b> (2020). Usulan Tata Letak Gudang Non Semen Menggunakan Metode Class-Based Storage di PT Intiaga Sukses Abadi Cabang Medan <span class="translation">[Proposed Non Cement Warehouse Layout Using the Class Based Storage Method at PT Intiaga Sukses Abadi, Medan Branch]</span>. <em>Jurnal Industri Kreatif, 4(1), 17-26.</em> <a class="inline-doi" href="https://doi.org/10.36352/jik.v4i01.23">DOI</a></span></li><li><span class="pub-title">Siboro, B. A. H., Sinaga, R. H. M., & <b>Devis Wawan Saputra Simanjuntak</b> (2019). Rancang Bangun Alat Pengering Andaliman dengan Menggunakan Metode Quality Function Deployment (QFD) <span class="translation">[Design and Development of an Andaliman Dryer Using the Quality Function Deployment (QFD) Method]</span>. <em>Jurnal Sains dan Teknologi, 19(2), 133-140.</em> <a class="inline-doi" href="https://doi.org/10.36275/stsp.v19i2.210">DOI</a></span></li><li><span class="pub-title">Tampubolon, S. L., <b>Devis Wawan Saputra Simanjuntak</b>, & Simanjuntak, M. (2019). Analisis Kepuasan Wisatawan terhadap Atribut Wisata Menggunakan Metode CSI dan IPA pada Wisata Pemandian di Kabupaten Tapanuli Utara <span class="translation">[Analysis of Tourist Satisfaction with Tourism Attributes Using CSI and IPA Methods at Bathing Tourism Sites in North Tapanuli Regency]</span>. <em>Jurnal Sains dan Teknologi, 19(2), 141-151.</em> <a class="inline-doi" href="https://doi.org/10.36275/stsp.v19i2.216">DOI</a></span></li><li><span class="pub-title">Sinaga, R. H. M., & <b>Saputra, D. W.</b> (2019). <strong class="english-title">Performance Investigation of Geothermal Power Plant Based on Exergy and Exergoeconomic Analyses (Case Study: Sarulla Geothermal Power Plant).</strong> <em>IOP Conference Series: Materials Science and Engineering, 546, 072006.</em> <a class="inline-doi" href="https://doi.org/10.1088/1757-899X/546/7/072006">DOI</a></span></li></ul><p>Both Jurnal Sains dan Teknologi articles belong to the 2019 issue and use the author surname Simanjuntak.</p><h3>Other research outputs</h3>
<ul class="pub-list">
<li><span class="pub-title">Simamora, N., <b>Simanjuntak, D.</b>, & Tampubolon, N. (2023). <strong class="english-title">Sport Tourism in Lake Toba Area: Moving Forward.</strong> <em>2nd Global Conference on Hospitality, Tourism and Sports Management, Bali, Indonesia.</em> Conference abstract, not a verified full-length peer-reviewed article. <a href="https://apiar.org.au/wp-content/uploads/2023/08/5_GCHTSM_Jan_2023_BRRABS_806_TOUR_p.5.pdf">Conference abstract (PDF)</a></span></li>
<li><span class="pub-title">Hartono, R., <b>Saputra, D. W.</b>, & Hutasoit, J. T. H. (2006). Penerapan Algoritma Greedy pada Optimasi Pengaturan Lampu Lalu Lintas Sederhana. <span class="translation">[Application of a Greedy Algorithm to Optimize Simple Traffic Light Control]</span>. Undergraduate technical paper, Institut Teknologi Bandung. <a href="https://informatika.stei.itb.ac.id/~rinaldi.munir/Stmik/2005-2006/Makalah2006/MakalahStmik2006-48.pdf">ITB full paper (PDF)</a></span></li>
</ul><h3>Books and institutional documents</h3><ul class="pub-list books-list"><li><strong>Devis Saputra</strong>, Siboro, B.A.H., and Sinaga, C. (2022). <em>Metodologi Pelaksanaan Kerja Praktik di Bidang Manajemen Rekayasa</em> <span class="translation">[Methodology for Conducting Practical Work in Engineering Management]</span>. Feniks Muda Sejahtera. ISBN 978-623-5950-74-7.</li><li>Siboro, B. A. H., Manik, Y., Pardede, S., Panjaitan, O., Siahaan, M., Simamora, E., Sinaga, R. H. M., <b>Saputra, D. W.</b>, et al. (2022). <em>Peningkatan Nilai Andaliman: Rantai Pasok, Produk Turunan, dan Teknologi Tepat Guna</em> <span class="translation">[Andaliman Value Enhancement: Supply Chain, Derivative Products, and Appropriate Technology]</span>. Kanisius. Edited by Y. Manik, C. E. Setyowati, and T. Setyowati. ISBN 978-979-21-7351-2. <a href="https://bintangpusnas.perpusnas.go.id/konten/BK65647/peningkatan-nilai-andaliman-rantai-pasok-produk-turunan-dan-teknologi-tepat-guna">National Library catalog</a>.</li><li><b>Saputra, D. W.</b> (Coordinator). (2019). <em>Kurikulum Program Studi Manajemen Rekayasa, Institut Teknologi Del, 2019–2024</em> <span class="translation">[Curriculum of the Engineering Management Program, Institut Teknologi Del, 2019 to 2024]</span>. Internal academic document (not a commercially published book).</li></ul><h3>Intellectual property</h3><ul class="pub-list"><li>Siboro, B.A.H., Sinaga, R.H.M., and <strong>Devis Wawan Saputra</strong> (2020). <em>Rancang Bangun Alat Pengering Andaliman dengan Menggunakan Metode Quality Function Deployment (QFD)</em> <span class="translation">[Design and Development of an Andaliman Dryer Using the Quality Function Deployment (QFD) Method]</span>. Registered copyright, 27 February 2020; recorded in ORCID.</li></ul>
</section>
<section id="work">
<div class="eyebrow-rule"><h2>Work Experience</h2></div>
<div class="timeline">
<div class="entry"><div class="years">January 2025 to present</div><h3>Independent Learning Consultant</h3><div class="org">Paid freelance consulting and independent research · Remote, Indonesia</div>
<ul>
<li>Developed learning resources for independent projects, including needs analyses, competency maps, onboarding materials and assessment plans.</li>
<li>Conducted independent learning analytics research, documenting dataset provenance, evaluation methods and interpretation limits.</li>
</ul></div>
<div class="entry"><div class="years">July 2023 to August 2024</div><h3>Program Manager (Learning and Development)</h3><div class="org">Suitmedia · Jakarta, Indonesia; remote (concurrent with lecturer role until June 2023)</div>
<ul>
<li>Delivered 120 SCORM-compliant courses for approximately 100 new hires by leading a four-person Rocketversity team; an internal case study reported a 30% reduction in onboarding time.</li>
<li>Organized the 120-course Moodle library into reusable departmental materials by assigning content owners and review procedures.</li>
</ul></div>
<div class="entry"><div class="years">November 2019 to October 2021</div><h3>Head of Engineering Management Program</h3><div class="org">Institut Teknologi Del · Laguboti, Indonesia; concurrent with lecturer role</div>
<ul>
<li>Led the revision of the Engineering Management curriculum for 2019 to 2024, incorporating alumni feedback, faculty review and industry input across 144 SKS and eight semesters.</li>
<li>Coordinated curriculum approval and course sequencing for eight lecturers by aligning learning outcomes, assessment requirements and academic governance reviews.</li>
</ul></div>
<div class="entry"><div class="years">May 2016 to June 2023</div><h3>Lecturer in Engineering Management</h3><div class="org">Institut Teknologi Del · Laguboti, Indonesia</div>
<ul>
<li>Supervised more than 50 undergraduate theses and capstone projects with regular milestones, discussions and written feedback; taught engineering economics, entrepreneurship and systems thinking.</li>
<li>Developed practical exercises for the Astra Lean Production System teaching laboratory, turning lean manufacturing concepts into hands-on student activities.</li>
</ul></div>
<div class="entry"><div class="years">May 2015 to October 2015</div><h3>Program Manager, Health Technology Initiative</h3><div class="org">Summit Institute for Development · Mataram, Indonesia</div>
<ul>
<li>Coordinated four developers and six field workers during the THRIVE OpenSRP rollout across 16 districts, working with project partners and investigators to address implementation issues.</li>
<li>Used field timing tests to guide a temporary form redesign; most revised mobile forms loaded in under 10 seconds in reported tests.</li>
</ul></div>
<div class="entry"><div class="years">February 2011 to August 2011</div><h3>Research and Development Engineer</h3><div class="org">PT Cipta Srigati Lestari · Jakarta, Indonesia</div>
<ul>
<li>Developed Java-based optimization tools for supply-chain planning and operational decisions, translating client requirements into computational models.</li>
</ul></div>
</div>
</section>
<section id="education">
<div class="eyebrow-rule"><h2>Education</h2></div>
<div class="education-grid">
<div class="entry"><div class="years">October 2012 to June 2014</div><h3>MBA, International Business</h3>
<div class="org">University of Applied Sciences Würzburg-Schweinfurt (FHWS, now THWS), Germany · Final grade 1.8 (German scale)</div>
<p>Thesis: <em>Leadership on Flat Organizational Structure: Focusing on Organization Using Self-Managing Team and Open Allocation Strategy.</em> A qualitative case study of Valve and GitHub; thesis recorded in 2013 and degree completed in 2014.</p></div>
<div class="entry"><div class="years">August 2011 to October 2012</div><h3>German Language Course, B2</h3>
<div class="org">Hartnackschule Berlin, Germany</div><p>Intensive German-language study in preparation for the MBA.</p></div>
<div class="entry"><div class="years">August 2004 to March 2010</div><h3>Bachelor of Engineering, Informatics</h3>
<div class="org">Institut Teknologi Bandung (ITB), Indonesia</div>
<p>Thesis: <em>Image Retrieval System Using Geotagged Information.</em> Combined EXIF geolocation metadata with vector-space retrieval and evaluated TF, IDF and TF-IDF weighting using precision, recall and non-interpolated average precision.</p></div>
</div>
</section>
<section id="competence">
<div class="eyebrow-rule"><h2>Competence</h2></div>
<div class="skill-grid">
<div class="skill-group"><h3>Instructional Design and Learning Experience</h3><p>Training needs analysis; ADDIE and SAM; learning objectives and learning paths; curriculum mapping; competency-based assessment; job aids; blended and experiential learning; work-integrated learning.</p></div>
<div class="skill-group"><h3>Learning and Development Leadership</h3><p>Learning program management; team leadership; stakeholder and subject matter expert coordination; onboarding program design; learning content governance; course ownership; iterative delivery and review.</p></div>
<div class="skill-group"><h3>Learning Platforms and Authoring</h3><p>Hands-on: Moodle, SCORM, Articulate 360 (Rise and Storyline), and learning content standardization. Familiar with: xAPI, Workday Learning, SAP SuccessFactors, and Cornerstone OnDemand.</p></div>
<div class="skill-group"><h3>Learning Analytics and Research Methods</h3><p>Learner modeling and knowledge tracing; observational landmark designs; propensity-score and overlap weighting; model calibration; ROC-AUC, Brier score, MRR and macro-F1; cluster bootstrap; sensitivity, covariate balance and data leakage checks.</p></div>
<div class="skill-group"><h3>AI, Data and Software</h3><p>Python, pandas, NumPy, scikit-learn, PyTorch, SQL, Java, Excel, Git and GitHub Actions; logistic regression, Bayesian knowledge tracing, GRU models, BM25 retrieval and TF-IDF classification.</p></div>
<div class="skill-group"><h3>Academic Program and Research Governance</h3><p>Curriculum revision and academic review; accreditation preparation; learning outcome alignment; undergraduate thesis and capstone supervision; qualitative case studies; dataset provenance; reproducible analysis and reporting.</p></div>
<div class="skill-group"><h3>Languages</h3><p>Indonesian and Batak: native. English: professional working proficiency (TOEFL iBT 101, 2012). German: B2 training (Hartnackschule Berlin, 2012).</p></div>
<div class="skill-group"><h3>Completed Professional Training</h3><ul class="training-list"><li><strong>Advanced Machine Learning and Deep Learning</strong>, Indonesia AI (2025).</li><li><strong>Intercultural Team-Building Seminar</strong>, FHWS MBA program, Gayfié, France (2013).</li><li><strong>German B2 Language Training</strong>, Hartnackschule Berlin (2012).</li></ul></div>
</div>
</section>
<section id="contact">
<div class="eyebrow-rule"><h2>Contact</h2></div><p>Open to learning design, L&D and learning technology roles, as well as doctoral research in Artificial Intelligence in Education, learning analytics and educational systems centered on human judgment and learning needs. Based in Medan, Indonesia and open to remote work or relocation.</p><div class="contact-row"><a href="mailto:devis.saputra@gmail.com">Email</a><a href="https://www.linkedin.com/in/devissaputra/">LinkedIn</a><a href="https://orcid.org/0000-0002-7133-9410">ORCID</a></div>
</section>
<section id="visitor-countries" class="visitor-country-section" aria-labelledby="visitor-country-heading">
<div class="eyebrow-rule"><h2 id="visitor-country-heading">Visitors by Country</h2></div>
<p class="visitor-country-intro">Countries represented among visits to this homepage since the counter was installed.</p>
<div class="visitor-country-widget">
<script src="https://www.stats4u.net/s4u.js" data-id="2334757399" data-style="3700" async></script>
<noscript><p><a href="https://www.stats4u.net/live/2334757399" target="_blank" rel="noopener noreferrer">View country visitor statistics</a></p></noscript>
</div>
<p class="visitor-country-details"><a href="https://www.stats4u.net/live/2334757399" target="_blank" rel="noopener noreferrer">View full country statistics</a></p>
<p class="visitor-country-note">Approximate country information based on network location. Data begins with activation and may exclude blocked requests. Analytics provided by <a href="https://www.stats4u.net/en/privacy" target="_blank" rel="noopener noreferrer">Stats4U</a>.</p>
</section>
</main>
</div>
</body>
</html>