Demo Data from EDBT 2026 / reviewers in the wild / expert
Eduardo Gutarra
dblp:117/3592
· DBLP profile ↗
1ranked-venue papers
0as first author
0since 2021 · last 2012
—ORCID · none
Domains — the database's venue-derived domains; a paper can count in several
Databases, data management, data science and information retrieval · 1
Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.
| Computer architecture, parallel and distributed computing, and storage systems
1 paper |
Storage systems · 100% | |
| Databases, data mining, and information retrieval
1 paper |
Indexing and storage engines · 100% |
Topics — the 4 heaviest of 4, each with the papers that count most for it
| Topic | Weight | Papers | Last | Evidence papers |
|---|---|---|---|---|
Storage systems
data compression |
0.1 | 1 | 2012 | Reordering rows for better compression: Beyond the lexicographic order · ACM Trans. Database Syst. 2012 |
Storage systems › data compression
run-length coding |
0.1 | 1 | 2012 | Reordering rows for better compression: Beyond the lexicographic order · ACM Trans. Database Syst. 2012 |
Indexing and storage engines
column store |
0.0 | 1 | 2012 | Reordering rows for better compression: Beyond the lexicographic order · ACM Trans. Database Syst. 2012 |
Indexing and storage engines
data compression |
0.0 | 1 | 2012 | Reordering rows for better compression: Beyond the lexicographic order · ACM Trans. Database Syst. 2012 |
Methods — techniques the papers use, named apart from their topics
vortex · 0.3traveling salesman heuristic · 0.3nearest neighbor · 0.3multiple lists · 0.3
| Year | Publication | Venue | Position |
|---|---|---|---|
| 2012 | Reordering rows for better compression: Beyond the lexicographic orderabstractSorting database tables before compressing them improves the compression rate. Can we do better than the lexicographical order? For minimizing the number of runs in a run-length encoding compression scheme, the best approaches to row-ordering are derived from traveling salesman heuristics, although there is a significant trade-off between running time and compression. A new heuristic, Multiple Lists, which is a variant on Nearest Neighbor that trades off compression for a major running-time speedup, is a good option for very large tables. However, for some compression schemes, it is more important to generate long runs rather than few runs. For this case, another novel heuristic, Vortex, is promising. We find that we can improve run-length encoding up to a factor of 3 whereas we can improve prefix coding by up to 80%: these gains are on top of the gains due to lexicographically sorting the table. We prove that the new row reordering is optimal (within 10%) at minimizing the runs of identical values within columns, in a few cases. Daniel Lemire, Owen Kaser, Eduardo Gutarra |
ACM Trans. Database Syst. | 3 |