a person in the record
Christian Freksa
Researcher ORCID ID = 0000-0002-0330-00041950 to 2020
Supervised 14 doctoral students; Wikidata names Lotfi A. Zadeh and Stephen Embry Palmer as doctoral advisors and lists 1 doctoral student. Linked to Wikidata, ORCID, and 7 other registers.

How to read the markscited by a repository's recordstated by Wikidata or indexed by OpenAlexclaimed on an ORCID list, or inferred
Students14
- cited by a thesis record
- cited by a thesis record
- cited by a thesis record
- cited by a thesis record
- cited by a thesis record
- cited by a thesis record
- cited by a thesis record
- cited by a thesis record
- cited by a thesis record
- cited by a thesis record
- cited by a thesis record
- cited by a thesis record
- cited by a thesis record2010 · doctoral
- cited by a thesis record
Advisors on Wikidata2
From Wikidata, shown separately from the thesis records.
- stated by Wikidata
- stated by Wikidata
Students on Wikidata1
From Wikidata, shown separately from the thesis records.
- stated by Wikidata
The line above and below4 steps
The advisors of their advisors, four steps up at most, in the thesis records and on Wikidata, each kind marked; a person in both is listed once.
- 1 step up
stated by WikidataLotfi A. Zadehstated by WikidataStephen Embry Palmer
- 2 steps up
stated by WikidataDavid Rumelhartstated by WikidataJohn R. Ragazzini
- 3 steps up
stated by WikidataJohn B. Russell, Jr.stated by WikidataWilliam Kaye Estes
- 4 steps up
stated by WikidataB.F. Skinnerstated by WikidataLawrence Baker Arguimbaustated by WikidataVannevar Bush
Below them, within 3 steps, the record reaches 15 people: 14 cited by thesis records, 1 stated by Wikidata.
Education and career3
From Wikidata, shown separately from the thesis records. Each place opens its Wikidata item.
- until 1981
- from 2002worked
- undated
Sat beside the lineage17
referee, not advisor
- cited by a thesis record
- cited by a thesis record
Ahmed Loai Ali“Enhancing Data Classification Quality of Volunteered Geographic Information”
referee · 2016 · doctoral - cited by a thesis record
- cited by a thesis record
- cited by a thesis record
- cited by a thesis record
- cited by a thesis record
Jan Frederik Sima“A computational theory of visuo-spatial mental imagery”
referee · 2014 · doctoral - cited by a thesis record
Christian Graf“Schematisation in Hard-copy Tactile Orientation Maps”
referee · 2013 · doctoral - cited by a thesis record
- cited by a thesis record
- cited by a thesis record
- cited by a thesis record
Denise Peters“Cognitive Principles of Schematisation for Wayfinding Assistance”
referee · 2012 · doctoral - cited by a thesis record
- cited by a thesis recordreferee · 2010 · doctoral
- cited by a thesis record
Tiansi Dong“Recognizing variable spatial environments--The theory of cognitive prism”
referee · 2005 · doctoral - cited by a thesis record
- cited by a thesis record
Jörg-Thomas Vögele“Spatial Information Retrieval with Place Names”
referee · 2004 · doctoral