Robert Tienwen Chien was an influential American computer scientist who made significant contributions to information theory, fault-tolerance, and artificial intelligence. He served as the director of the Coordinated Science Laboratory at the University of Illinois at Urbana-Champaign. Chien is recognized for inventing the Chien search algorithm and for his important work on the PMC model, enhancing system-level fault diagnosis. His research played a critical role in advancing knowledge and technology in computing and AI.
Zodiac Sign (Western)
Sunsign, Tropical Zodiac
Zodiac Sign (Vedic)
Moonsign, Sidereal Zodiac
Age (Today)
Your next birthday is 328 days away.
Death Anniversary
Next death anniversary is 18 days away.
Death Date
Place of Birth
Time Zone - Asia/Shanghai (8:0 E)
Chinese Zodiac Sign
Birth Number
Life Path Number
Name Number (Chaldean)
Name Number (Pythagorean)
Meaning of the name - Robert
bright fame, shining glory
Read Full Robert Name AnalysisNovember 20, 1931 Facts
Generation Group
Robert Tienwen Chien belongs to the Silent Generation group.
Place of Birth: Wuxi
Place of Death: Urbana
Educated At: National Taiwan University
Occupation: artificial intelligence researcher | university teacher | computer scientist
Employers: University of Illinois system
Astrology Analysis
Note: This birth chart is calculated using the date and place of birth, with the time set to noon (12:00 PM) local time. While this provides accurate planetary positions for most celestial bodies, the Ascendant (Rising Sign) and house cusps are not calculated since they require precise birth time. For a complete astrological analysis including houses and rising sign, please provide the exact birth time.
Ephemeris for November 20, 1931
Note: Moon position is location and time sensitive.| Planet | Position (Tropical, Western) | Transits on November 20, 2025 | Secondary Progressions for November 20, 2025 |
|---|---|---|---|
| Sun | 26 Scorpio 52 | 28 Scorpio 5 | 2 Pisces 20 |
| Moon | 0 Aries 30 | 26 Scorpio 49 | 3 Virgo 19 |
| Mercury | 14 Sagittarius 39 | 28 Scorpio 36 | 28 Aquarius 27 |
| Venus | 15 Sagittarius 35 | 16 Scorpio 35 | 11 Aries 19 |
| Mars | 15 Sagittarius 3 | 11 Sagittarius 19 | 27 Aquarius 40 |
| Jupiter | 21 Leo 48 | 25 Cancer 2 | 15 Leo 29 |
| Saturn | 19 Capricorn 38 | 25 Pisces 7 | 0 Aquarius 0 |
| Uranus | 15 Aries 56 | 29 Taurus 30 | 16 Aries 49 |
| Neptune | 7 Virgo 52 | 29 Pisces 28 | 6 Virgo 43 |
| Pluto | 22 Cancer 1 | 1 Aquarius 41 | 20 Cancer 16 |
| Rahu | 2 Aries 29 | 14 Pisces 22 | 27 Pisces 31 |
| Ketu | 2 Libra 29 | 14 Virgo 22 | 27 Virgo 31 |
Chandra Kundali (Equal House, North Indian Diamond Chart)
