To understand the contribution of the human presupplementary motor area (pre-SMA) in sequential motor behavior, we performed a series of finger key-press experiments. Experiment 1 revealed that each subject had a spontaneous tendency to organize or "chunk" a long sequence into shorter components. We hypothesized that the pre-SMA might have a special role in initiating each chunk but not at othe...

Motor chunking facilitates movement production by combining motor elements into integrated units of behavior. Previous research suggests that chunking involves two processes: concatenation, aimed at the formation of motor-motor associations between elements or sets of elements, and segmentation, aimed at the parsing of multiple contiguous elements into shorter action sets. We used fMRI to measu...

We extend state-of-the-art lock-free linked lists by building linked lists with special care for locality of traversals. These linked lists are built of sequences of entries that reside on consecutive chunks of memory. When traversing such lists, subsequent entries typically reside on the same chunk and are thus close to each other, e.g., in same cache line or on the same virtual memory page. S...

This paper proposes dynamic chunk reader (DCR), an end-to-end neural reading comprehension (RC) model that is able to extract and rank a set of answer candidates from a given document to answer questions. DCR is able to predict answers of variable lengths, whereas previous neural RC models primarily focused on predicting single tokens or entities. DCR encodes a document and an input question wi...

Slow restoration due to chunk fragmentation is a serious problem facing inline chunk-based data deduplication systems: restore speeds for the most recent backup can drop orders of magnitude over the lifetime of a system. We study three techniques—increasing cache size, container capping, and using a forward assembly area— for alleviating this problem. Container capping is an ingest-time operati...

Nondelivery is a major problem in exchanges, especially in electronic commerce: the supplier might not deliver the goods or the demander might not pay. Enforcement is often di cult if the exchange parties are software agents, anonymous, bound by di erent laws, or if litigation and escrow services are expensive. Recently, a game-theoretic self-enforcing method for carrying out exchanges was pres...

This document defines the procedure for registering chunk flags with the Internet Assigned Numbers Authority (IANA) for the Stream Control Transmission Protocol (SCTP). It updates RFC 4960 and also defines the IANA registry for contents for currently defined chunk types. It does not change SCTP in any other way. Information about the current status of this document, any errata, and how to provi...

Evidence is provided that the patterns of pauses that occur during the process of writing simple word phrases constitute a substantial temporal signal that reflects the structure of the chunks in working memory. This temporal signal is apparent in un-aggregated data for individual participants in single trials. Five and six word phrases, with word lengths of one to six letters were used. Pause ...