Shubha Chakravarty

Learn More
Long House Valley in the Black Mesa area of northeastern Arizona (U.S.) was inhabited by the Kayenta Anasazi from about 1800 before Christ to about anno Domini 1300. These people were prehistoric ancestors of the modern Pueblo cultures of the Colorado Plateau. Paleoenvironmental research based on alluvial geomorphology, palynology, and dendroclimatology(More)
We use a constraint-based language to specify periodic temporal patterns. Our language is intended to be simple to use, while allowing a wide variety of patterns to be expressed. The language solves problems such as (1) how to use calendar-based constraints to define repetition of a periodic event, (2) what temporal relations must exist between consecutive(More)
  • 1