Our goal is to find papers which the community can learn from and might otherwise have trouble finding a suitable venue, so we take a broad view of what constitutes a "negative" result. A good NOPE submission might entail:

• Thorough evaluations of failed projects which uncover and characterize the root cause.

• Papers which describe both positive and negative results, with an emphasis on the underlying reasons behind why some succeeded and other failed.

• Cradle-to-grave examination of completed projects, specifically to dissect dead-ends and unworkable solutions encountered along the way.

• Design space explorations or comprehensive experiments which suggest a particular technique is unlikely to work under a realistic set of assumptions.

• Research which uncovers fundamental limitations in scalability, performance, accuracy, or other quantifiable metrics.

• Any research which serves to share the lessons of failure to the broader community, such that we can avoid repeating them in the future.